gas stove

Abstract

Gas stove comprising at least one gas unit (7), the gas unit (7) comprising at least one burner (11), characterized in that each of the burners (11) is provided with at least one temperature control valve (6); wherein the temperature control valve (6) comprises: a valve body (1), wherein the valve body (1) is provided with a valve inlet (101) and a valve outlet (102); a valve spool (2), at least a portion of the valve spool (2) being mounted within the valve body (1), the valve spool (2) being rotated to control the amount of gas exiting the valve outlet (102); a valve rod (3), wherein the valve rod (3) drives the valve spool (2) to rotate; and a first drive element, wherein the first drive element serves to drive the valve rod (3); wherein the valve outlet (102) of the valve body (1) is connected to a gas inlet of the burner (11).

Description

Technical area

[0001] The present utility model relates to the technical field of burners, in particular a gas stove. State of the art

[0002] The rotary plug valve is a device for adjusting the gas flow switch and size by manual rotation, which is commonly used in gas stove burners to control the size of the gas inlet and then control the flame size. The flame size corresponds to the temperature, but the existing manual control for adjusting the gas inlet is relatively crude. Users must have a certain degree of barbecue experience to roughly judge the temperature, and it is difficult to adjust it accurately. In addition, a gas stove has multiple burners, making it difficult for users to operate multiple valves for temperature control. Therefore, there is an urgent need to develop a new type of gas stove. Disclosure of the application

[0003] In order to solve at least one of the above technical problems, the present utility model provides a gas stove comprising a gas unit, the gas unit comprising a temperature control valve for precise temperature control and at least one burner.

[0004] The temperature control valve includes the following: a valve body, the valve body being provided with a valve inlet and a valve outlet; a valve spool, at least a portion of the valve spool being mounted within the valve body, the valve spool being rotated to control the amount of gas exiting the valve outlet; a valve rod, the valve rod driving the valve spool to rotate; and a first drive element, the first drive element serving to drive the valve rod; wherein the valve outlet of the valve body is connected to a gas inlet of the burner.

[0005] The above valve spool structure uses the existing valve spool structure of the rotary plug valve, wherein the first drive element comprises a drive motor, an output shaft of the drive motor being connected to the valve rod via a transmission assembly.

[0006] By means of the above technical solutions, in the present utility model, a rotation control of the valve coil is achieved by driving the drive motor to rotate in order to achieve precise control over the size of the gas inlet and thus precise control of the temperature.

[0007] Preferably, the transmission assembly comprises a drive gear assembly connected externally to the valve rod and an active gear attached to the output shaft of the drive motor, wherein the active gear drives the drive gear assembly to rotate and thus drive the valve rod to drive the valve spool to rotate to regulate the gas flow. The active gear and the drive gear assembly are connected to each other by a multi-stage transmission gear assembly.

[0008] The present utility model adopts a multi-stage transmission gear assembly for transmission, which can realize precise control for the output of the drive motor.

[0009] Preferably, the gas stove further comprises an anti-misrotation portion, wherein the valve rod is provided with a connecting portion, wherein the anti-misrotation portion is provided on one side with a control tab, wherein at least a part of a surface of the control tab is formed as a control surface, wherein the valve spool is provided with an adjusting portion adapted to the connecting portion;

[0010] When the valve rod is moved axially along a direction facing the valve body, the connecting portion detaches from the anti-misrotation portion and enters the adjusting portion, wherein the connecting portion enters the regulating surface of the regulating tab after rotating about an axis of the valve rod as a rotation axis, and wherein the first drive element operates to drive the valve spool to rotate.

[0011] The gas stove further comprises a housing, wherein the valve body is connected to a back side of the housing, wherein at least a part of the valve rod passes through the housing, wherein the housing is provided with a chamber, wherein the valve body is provided in the chamber with a first limiting portion and a second limiting portion, wherein a spring is formed between the first limiting portion and the second limiting portion, Thus, the valve rod and the valve spool are provided separately from each other without external force to prevent accidental contact.The drive gear assembly is movably connected to the valve rod, the drive gear assembly comprising a driven gear, the driven gear being provided with a drive portion, the valve rod being provided with a driven portion adapted to the drive portion so that the valve rod can move axially with the drive gear assembly and follow the driven gear in a circumferential direction.

[0012] The drive gear assembly further comprises a driven plate body, wherein a second drive element is provided between the driven plate body and the driven gear, wherein the second drive element comprises a drive cam provided on each of the driven plate body and the driven gear, and a drive guide rail, wherein the drive cam is adapted to the drive guide rail.

[0013] Preferably, the gas stove further comprises a controller and a temperature sensing module, wherein the burner of each of the units is provided with a temperature sensing module, wherein a plurality of temperature sensing modules are electrically connected to an input end of the controller, wherein an output end of the temperature sensing module is electrically connected to the first drive element of the gas unit, and wherein the controller is electrically connected to the temperature regulating valve of the gas unit. Due to the structure, the temperature of the stove can be detected in real time during use. When the stove temperature does not match the set temperature, the controller controls the temperature regulating valve for fine adjustment.Preferably, the gas stove further comprises an electrical control panel, the electrical control panel is electrically connected to the input end of the controller, and by inputting the temperature to be controlled on the electrical control panel, the controller adjusts the size of the gas inlet according to the input temperature.

[0014] Compared with the prior art, the utility model has the following advantages: The present utility model has a simple structure, the valve rod is driven by the operation of the drive motor to drive the valve spool to rotate, so as to achieve the precise control of the valve spool rotation, so as to achieve the precise control of the amount of air intake, and with the temperature detection module, it can achieve the control of the temperature, when the temperature is too low, the valve spool is driven to rotate to increase the amount of air intake, and when the temperature is too high, the valve spool is driven to rotate to decrease the amount of air intake.In addition, the present utility model uses a control device to control the regulation, so that the user does not need to frequently operate multiple valve rods to achieve the temperature change of the furnace, and the user does not need to manually rotate the valve rod to control the temperature. Drawings of the disclosure Fig. 1 shows a three-dimensional representation of a temperature control valve of the present utility model; Fig. 2 shows a three-dimensional sectional view of the temperature control valve of the present utility model; Fig. 3 is a schematic diagram showing the structure of a valve coil of the temperature control valve of the present utility model; Fig. 4 shows a three-dimensional view of a hidden valve body of the temperature control valve of the present utility model; Fig. 5 is a schematic diagram showing the structure of a transmission portion of the temperature control valve of the present utility model; Fig. 6 is a schematic diagram showing the connecting structure of a valve rod of the temperature control valve of the present utility model; Fig. 7 shows a control block diagram of the present utility model; Fig. 8 shows a circuit diagram of a control device of the present utility model; Fig. 9 shows a three-dimensional sectional view of the gas stove; Fig. 10 is a schematic diagram showing the structure of a drive cam of the present utility model; Fig. 11 shows a schematic diagram of the structure of a drive rail of the present utility model; Fig. 12 shows a three-dimensional sectional view of an adaptation structure; Fig. 13 shows a three-dimensional representation of the stove of the present utility model; Fig. 14 shows a three-dimensional sectional view of Fig. 3. List of reference symbols:

[0015] 1 Valve body; 101 Valve inlet; 102 Valve outlet; 2 Valve spool; 201 Inlet; 202 Outlet; 203 Adjusting section; 3 Valve rod; 301 Drive gear assembly; 302 Connecting section; 303 Driven gear; 304 Drive section; 305 Driven section; 306 Driven plate body; 3061 First through hole; 307 Mounting recess; 4 Drive motor; 401 Active gear; 402 Multi-stage transmission gear assembly; 5 Housing; 501 Anti-misrotation section; 502 Regulating tab; 503 Regulating surface; 504 First restricting section; 505 Second restricting section; 506 Spring; 507 Chamber; 508 Introduction port; 509 Support block; 510 Snap spring; 6 Temperature regulating valve; 7 Gas unit; 8 Temperature sensing module; 9 Control unit; 10 Electrical control panel; 11 Burner; 1201 Drive cam; 1202 Drive guide rail; 13 Bracket; 1301 Cooking area; 1302 Baffle plate; 1303 Third through hole; 1304 Control knob; 1305 Second through hole; 1306 Sloping surface;1307 fourth through hole; 1308 first storage plate; 1309 second storage plate; 14 connecting channel.; Concrete embodiments

[0016] To enable the skilled person to better understand the present utility model and thus more clearly define the scope of protection claimed by the present utility model, a detailed description of the present utility model follows with regard to certain concrete embodiments of the present utility model. It should be noted that the following embodiments are only certain concrete embodiments of the idea of ​​the present utility model, representing only a portion of the embodiments of the present utility model. The concrete and direct description of the respective structure serves only to better understand the present utility model, and the specific features do not ipso facto and directly limit the scope of implementation of the present utility model.

[0017] As shown in figures, the present utility model uses the following technical solution, firstly, the present utility model provides a gas stove comprising at least one gas unit 7, wherein the gas unit 7 comprises at least one burner 11, wherein each of the burners 11 is provided with at least one temperature control valve 6 for precisely controlling the temperature.

[0018] The temperature control valve 6 includes the following: a valve body 1, wherein the valve body 1 is provided with a valve inlet 101 and a valve outlet 102; a valve spool 2, at least a portion of the valve spool 2 being mounted within the valve body 1, the valve spool 2 being rotated to control the amount of gas exiting the valve outlet 102; a valve rod 3, the valve rod 3 driving the valve spool 2 for operation; a first drive element, the first drive element serving to drive the valve rod 3 for operation;

[0019] The valve outlet 102 of the valve body 1 is connected to a gas inlet of the burner 11.

[0020] The above structure of the valve spool 2 uses the existing valve spool structure 2 of the rotary plug valve. For example, the valve spool 2 is provided with a number of inlets 201 with different openings and at least two connecting channels 14 with different gas flow rates. The inlet 201 is provided at one end of the connecting channels 14, an outlet 202 is formed at the other end of the connecting channels 14, and both ends of the connecting channels 14 are connected to the valve inlet 101 and the valve outlet 102, respectively. For example, the structure is provided with two connecting channels 14, and while the inlet 201 of one connecting channel 14 is connected to the valve inlet 101, the inlet 201 of the other connecting channel 14 is blocked by the inner wall of the valve body 1, thereby achieving that the valve spool 2 rotates to regulate the gas flow rate.The first drive element comprises a drive motor 4, wherein an output shaft of the drive motor 4 is connected to the valve rod 3 via a transmission assembly.

[0021] By means of the above technical solutions, in the present utility model, a rotation control of the valve coil 2 is achieved by driving the drive motor 4 to rotate in order to achieve precise control over the size of the gas inlet and thus precise control of the combustion temperature of the burner 11.

[0022] Preferably, the transmission assembly comprises a drive gear assembly 301 connected externally to the valve rod 3 and an active gear 401 attached to the output shaft of the drive motor 4. The active gear 401 drives the drive gear assembly 301 to rotate and thus drive the valve rod 3 to drive the valve spool 2 to rotate to regulate the gas flow. The active gear 401 and the drive gear assembly 301 are connected to each other by a multi-stage transmission gear assembly 402.

[0023] The present utility model adopts a multi-stage transmission gear assembly 402 for transmission, which can realize precise control for the output of the drive motor 4.

[0024] In this embodiment, a drive motor 4 is used for the drive. In other embodiments, a motorized telescopic rod can be used, to the end portion of which, for example, a rod body is attached, which is provided with a linearly arranged toothed groove that engages the driven gear 303.

[0025] Preferably, the gas stove further comprises an anti-misrotation portion 501, wherein the valve rod 3 is provided with a connecting portion 302, wherein the anti-misrotation portion 501 is provided on one side with a control tab 502, wherein at least a part of a surface of the control tab 502 is formed as a control surface 503, wherein the valve spool 2 is provided with an adjusting portion 203 adapted to the connecting portion 302;

[0026] When the valve rod 3 is moved axially along a direction facing the valve body 1, the connecting portion 302 detaches from the anti-misrotation portion 501 and enters the adjusting portion 203, the connecting portion 302 enters the regulating surface 503 of the regulating tab 502 after rotating about an axis of the valve rod 3 as a rotation axis, and the first driving element operates to drive the valve spool 2 to rotate.

[0027] In this embodiment, the adjustment portion 203 is an adjustment recess formed on the valve spool 2. In this embodiment, the connecting portion 302 is a connecting projection attached to an end portion of the valve rod 3, wherein the connecting projection may be perpendicular or at an acute or obtuse angle to the valve rod 3.

[0028] The gas stove further comprises a housing 5, wherein the valve body 1 is connected to a back side of the housing 5, wherein at least a part of the valve rod 3 passes through the housing 5, wherein the housing 5 is provided with a chamber 507, wherein the valve body 1 is provided in the chamber 507 with a first limiting portion 504 and a second limiting portion 505, wherein a spring 506 is formed between the first limiting portion 504 and the second limiting portion 505. Thus, the valve rod 3 and the valve spool 2 are provided separately from each other without external force to prevent accidental contact.

[0029] The anti-false rotation portion 501 and the regulating tab 502 are provided on an outer wall of the housing 5,

[0030] The drive gear assembly 301 is movably connected to the valve rod 3, wherein the drive gear assembly 301 comprises a driven gear 303, wherein the driven gear 303 is provided with a drive portion 304, wherein the valve rod 3 is provided with a driven portion 305 adapted to the drive portion 304 so that the valve rod 3 can move axially with the drive gear assembly 301 and follow the driven gear 303 in a circumferential direction.The drive gear assembly 301 further includes a driven plate body 306, wherein a second drive element is provided between the driven plate body 306 and the driven gear 303, the second drive element comprising a drive cam 1201 provided on each of the driven plate body 306 and the driven gear 303, and a drive guide rail 1202, the drive cam 1201 being adapted to the drive guide rail 1202. A circular hole is provided in the center of the driven gear 303, and a first through hole 3061 is provided in the driven plate body 306, and a side wall of the first through hole 3061 is a plane to form the drive portion 304, the plane forming the drive portion 304.At least a part of the outer wall of the valve rod 3 is provided with a flat surface which cooperates with this drive portion 304 to form a driven portion 305 which enables the valve rod 3 to participate in the rotation of the driven gear 303 in the circumferential direction and to move the valve rod 3 axially relative to the driven gear 303.

[0031] When the present utility model is not controlled by the drive motor 4, the drive cam 1201 moves within the drive guide rail 1202, enabling manual gas flow control of the control valve. When the present utility model needs to be controlled by the drive motor 4, the inner wall of at least one end of the drive guide rail 1202 drives the movement of the drive cam 1201, which in turn controls the rotation of the valve rod 3.

[0032] The active gear 401 meshes with the multi-stage transmission gear assembly 402, and the multi-stage transmission gear assembly 402 meshes with the driven gear 303.

[0033] A mounting recess 307 is formed outside the valve rod 3, a snap spring 510 is installed in the mounting recess 307, a first restricting portion 504 is formed on one side of the snap spring 510, and a second restricting portion 505 is formed on one side of the driven plate body 306, so that the outer wall of the snap spring 510 abuts against the inner wall of the chamber 507 without being subjected to an external force.

[0034] The housing 5 is provided with an insertion opening 508 through which the valve rod 3 can be passed, and a support block 509 is fixed in the chamber 507, which support block 509 is located in the inner side wall of the insertion opening 508, the support block 509 supporting the driven gear 303.

[0035] In other embodiments, it is also possible to dispense with the false contact protection and to attach the gears of the drive gear assembly 301 directly to the valve rod 3, which then directly rotates the valve spool 2.

[0036] Preferably, the gas stove further comprises a controller 9 and a temperature sensing module 8. Each of the burner units 11 is provided with a temperature sensing module, a plurality of temperature sensing modules 8 being electrically connected to an input end of the controller 9, and an output end of the temperature sensing module 8 being electrically connected to the first drive element of the gas unit 7. This structure allows the temperature of the stove to be detected in real time during use. When the stove temperature does not match the set temperature, the temperature is finely controlled.

[0037] The gas stove further comprises an electrical control panel 10, for example an existing touch screen, the electrical control panel 10 is electrically connected to the input end of the control unit 9, and by inputting the temperature to be controlled on the electrical control panel 10, the control unit 9 adjusts the size of the gas inlet according to the input temperature.

[0038] The present utility model adopts a multi-thread working mode, which can set all valve bodies 1 to the same set temperature with one button via the electric control panel 10, and can also be individually controlled to achieve zoned grilling.

[0039] The temperature detection module 8 can take over the existing temperature sensor. As in Fig.As shown in Figure 8, Input01, Input02, Input11, Input12, PHASE1, and PHASE2 are the signals for controlling valve rod 3, which mainly control the rotation direction of the drive motor 4, the rotation angle, and the rotation speed. OUT1A, OUT1B, OUT2A, and OUT2B are the output sections of the drive chip, which provide the drive voltage and forward and reverse rotation signals for the drive motor 4.

[0040] Compared with the prior art, the utility model has the following advantages: The present utility model has a simple structure, the valve rod 3 is driven by the operation of the drive motor 4 to drive the valve spool 2 to rotate, so as to achieve the precise control of the rotation of the valve spool 2, so as to achieve the precise control of the amount of air intake, and with the temperature detection module 8, it can achieve the control of the temperature, when the temperature is too low, the valve spool 2 is driven to rotate to increase the amount of air intake, and when the temperature is too high, the valve spool 2 is driven to rotate to decrease the amount of air intake.In addition, the present utility model uses a control device 9 to control the regulation, so that the user does not need to frequently operate multiple valve rods 3 to achieve the temperature change of the furnace, and the user does not need to manually rotate the valve rod 3 to regulate the temperature.

[0041] Preferably, the gas stove further comprises a bracket 13, wherein the bracket 13 is provided with a cooking area 1301, wherein at least one of the burners 11 is installed in the cooking area 1301, wherein at least one of the cooking areas 1301 is provided with a baffle plate 1302, wherein the baffle plate 1302 is provided above the burner 11. The third through-hole 1303 is formed on the bracket 13, the valve stem 3 passes through the third through-hole 1303 and is then connected to the knob 1304, and the temperature control valve 6 can be attached to the inside of the bracket 13. The baffle plate 1302 consists of a plate with an inverted V-shape on the side, and at least one second through-hole 1305 is provided on both sides of the baffle plate 1302.A slanted surface 1306 is formed on a bottom surface of the cooking area 1301, and a fourth through-hole 1307 for the oil passage is formed on the bottom surface of the slanted surface 1306. The first storage plate 1308 is installed above the baffle plate 1302, while the second storage plate 1309 is installed above the first storage plate 1308.

[0042] So far, the technical solutions of the present utility model have been described in connection with the preferred embodiments illustrated in the attached drawings. However, it is readily apparent to those skilled in the art that the scope of protection of the present utility model is, of course, not limited to these specific embodiments. Without deviating from the principle of the present utility model, the skilled person may make equivalent modifications or replacements to the relevant technical features. The technical solutions resulting from these modifications or replacements fall within the scope of protection of the present utility model.

Claims

[1] Gas stove comprising at least one gas unit (7), wherein the gas unit (7) comprises at least one burner (11), characterized by that each of the burners (11) is provided with at least one temperature control valve (6); wherein the temperature control valve (6) comprises: a valve body (1), wherein the valve body (1) is provided with a valve inlet (101) and a valve outlet (102); a valve spool (2), at least a portion of the valve spool (2) being mounted within the valve body (1), the valve spool (2) being rotated to control the amount of gas exiting the valve outlet (102); a valve rod (3), wherein the valve rod (3) drives the valve spool (2) to rotate; and a first drive element, wherein the first drive element serves to drive the valve rod (3); wherein the valve outlet (102) of the valve body (1) is connected to a gas inlet of the burner (11). [2] Gas stove according to claim 1, characterized by in that it further comprises a holder (13), wherein the holder (13) is provided with a cooking area (1301), wherein at least one of the burners (11) is installed in the cooking area (1301), wherein at least one of the cooking areas (1301) is provided with a baffle plate (1302), wherein the baffle plate (1302) is provided above the burner (11). [3] Gas stove according to claim 2, characterized by that the holder (13) is further provided with a third through-hole (1303) for the passage of the valve rod (3), wherein the valve rod (3) is connected to a rotary knob (1304) after passing through the third through-hole (1303). [4] Gas stove according to claim 2, characterized bythat the baffle plate (1302) has an inverted V shape, wherein at least one second through hole (1305) is provided on both sides of the baffle plate (1302). [5] Gas stove according to claim 2, characterized by that an inclined surface (1306) is formed on a bottom side of the cooking area (1301), and wherein a fourth through hole (1307) for the oil line is formed on the bottom side of the inclined surface (1306). [6] Gas stove according to claim 2, characterized by in that it further comprises a first storage plate (1308) and a second storage plate (1309), wherein the first storage plate (1308) is installed above the baffle plate (1302), wherein the second storage plate (1309) is installed above the first storage plate (1308). [7] Gas stove according to claim 1, characterized byin that the first drive element comprises a drive motor (4), wherein an output shaft of the drive motor (4) is connected to the valve rod (3) via a transmission assembly, wherein the transmission assembly comprises a drive gear assembly (301) connected outside the valve rod (3) and an active gear (401) fastened to the output shaft of the drive motor (4), wherein the active gear (401) drives the drive gear assembly (301) to rotate and thus drive the valve rod (3) to drive the valve spool (2) to rotate in order to regulate the gas quantity, wherein the active gear (401) and the drive gear assembly (301) are connected to one another by a multi-stage transmission gear assembly (402). [8] Gas stove according to claim 1, characterized bythat it further comprises an anti-false rotation portion (501), wherein the valve rod (3) is provided with a connecting portion (302), wherein the anti-false rotation portion (501) is provided on one side with a control tab (502), wherein at least a part of a surface of the control tab (502) is formed as a control surface (503), wherein the valve spool (2) is provided with an adaptation portion (203) adapted to the connecting portion (302); wherein, when the valve rod (3) is moved axially along a direction facing the valve body (1), the connecting portion (302) detaches from the anti-misrotation portion (501) and enters the adjusting portion (203), wherein the connecting portion (302) enters the regulating surface (503) of the regulating tab (502) after rotating about an axis of the valve rod (3) as a rotation axis, and wherein the first drive element is actuated to drive the valve spool (2). [9] Gas stove according to claim 5, characterized by in that it further comprises a housing (5), wherein the valve body (1) is connected to a rear side of the housing (5), wherein at least a part of the valve rod (3) passes through the housing (5), wherein the housing (5) is provided with a chamber (507), wherein the valve body (1) is provided in the chamber (507) with a first limiting portion (504) and a second limiting portion (505), wherein a spring (506) is formed between the first limiting portion (504) and the second limiting portion (505). [10] Gas stove according to claim 7, characterized byin that the drive gear assembly (301) is movably connected to the valve rod (3), wherein the drive gear assembly (301) comprises a driven gear (303), wherein the driven gear (303) is provided with a drive portion (304), wherein the valve rod (3) is provided with a driven portion (305) adapted to the drive portion (304) so ​​that the valve rod (3) can move axially with the drive gear assembly (301) and follow the driven gear (303) in a circumferential direction. [11] Gas stove according to claim 10, characterized byin that the driven gear (303) further comprises a driven plate body (306), wherein a second drive element is provided between the driven plate body (306) and the driven gear (303), wherein the second drive element comprises a drive cam (1201) which is provided on each of the driven plate body (306) and the driven gear (303), and a drive guide rail (1202), wherein the drive cam (1201) is adapted to the drive guide rail (1202). [12] Gas stove according to claim 11, characterized byin that it further comprises a control device (9) and a temperature detection module (8) provided on the burner (11) of the gas unit (7), wherein the temperature detection module (8) is electrically connected to an input end of the control device (9), wherein an output end of the temperature detection module (8) is electrically connected to the first drive element of the gas unit (7), and the control device (9) is electrically connected to the temperature control valve (6) of the gas unit (7).

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