CN211820970U

CN211820970U - Air valve and steam cooking device

Info

Publication number: CN211820970U
Application number: CN202020208629.6U
Authority: CN
Inventors: 任富佳; 孙彦奎; 阮华平; 杨少令
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-10-30
Anticipated expiration: 2030-02-25

Abstract

The utility model relates to the technical field of valves, especially, relate to an air valve and steam cooking device. The air valve comprises a shell, a valve core, a worm wheel, a worm and a power mechanism, wherein the power mechanism is used for driving the worm to rotate, the worm is in meshed transmission with the worm wheel, the worm wheel is coaxially fixed with the valve core, the valve core is pivoted with the shell, and the valve core can be opened and closed through rotation. The steam cooking device comprises the gas valve. The air valve and the steam cooking device provided by the utility model are not easy to have the clamping stagnation problem in the opening and closing processes of the air valve, and have stronger reliability; in addition, the case of pneumatic valve can rotate great angle to in the opening when increaseing the pneumatic valve and opening, and then, can increase the cold wind volume through the pneumatic valve in the unit interval, be convenient for improve the cooling efficiency of inner bag.

Description

Air valve and steam cooking device

Technical Field

The utility model relates to the technical field of valves, especially, relate to an air valve and steam cooking device.

Background

The steam cooking device is a kitchen appliance which heats water into high-temperature steam to cook food, the inner container of the steam cooking device is in a closed state when the food is cooked, the temperature of the steam in the inner container of the steam cooking device is generally higher than 95 ℃ after the cooking is finished, and if the door body of the steam cooking device is opened at the moment, the steam in the inner container can be sprayed out from the door to scald a user.

In order to prevent a user from being scalded, air valves are installed on inner containers of some steam cooking devices, after the steam cooking devices finish cooking, the air valves can be opened, and cold air is sent into the inner containers by utilizing a cold air supply mechanism outside the inner containers, so that the temperature of air in the inner containers is reduced, and the injury to the cookers is prevented. The existing air valve is generally opened and closed by matching a spring and a magnetic coil, and the performance of the spring can generate larger fluctuation along with the prolonging of time, so that the clamping stagnation in the opening or closing process is caused, and the reliability is poor.

In summary, how to overcome the above-mentioned defects of the existing gas valves is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air valve and steam cooking device to the open or closed process that alleviate the air valve existence among the prior art easily takes place the jamming, the poor technical problem of reliability.

The utility model provides an air valve, including casing, case, worm wheel, worm and power unit, power unit is used for the drive the worm rotates, the worm with the worm wheel meshing transmission, the worm wheel with the case is coaxial fixed, the case with the casing pin joint, the case rotates and can open and close the air valve.

Preferably, as an embodiment, the housing has a first vent and a second vent respectively located at two sides of the valve core, and the first vent and the second vent are communicated with each other when the gas valve is opened; the valve core comprises a cover plate and a sealing ring, and the sealing ring is fixed on one side, facing the first air vent, of the cover plate and used for sealing the first air vent.

Preferably, as an implementation manner, one side of the sealing ring facing the first vent opening is provided with an annular convex part, a top end of the annular convex part is used for being pressed around the first vent opening, and the annular convex part inclines from outside to inside towards the top end.

Preferably, as an implementation mode, an annular installation groove is formed in one side of the cover plate facing the first vent, and the seal ring is installed in the annular installation groove.

Preferably, as an implementation mode, the power mechanism includes a motor, and an output shaft of the motor is coaxially fixed with the worm.

Correspondingly, the utility model also provides a steam cooking device, including inner bag, cold wind feeding mechanism and above-mentioned pneumatic valve, the mounting hole has been seted up on the inner bag, the pneumatic valve is installed in the mounting hole of inner bag, when the pneumatic valve was opened, cold wind feeding mechanism can be toward blow in the inner bag.

Preferably, as an embodiment, the sealing ring of the valve core is fixed on one side of the cover plate of the valve core facing the inner container.

Preferably, as an embodiment, the steam cooking device further includes a controller.

The power mechanism is electrically connected with the controller, and the controller is used for controlling the power mechanism to drive the air valve to open after the steam cooking device finishes cooking; and/or the cold air supply mechanism is electrically connected with the controller, and the controller is used for controlling the cold air supply mechanism to be opened after the steam cooking device finishes cooking.

Preferably, as an embodiment, a first temperature sensor is installed in the inner container, and the first temperature sensor is electrically connected to the controller.

The controller is used for controlling the power mechanism to drive the air valve to be closed when the temperature in the inner container is lower than a first set value, and/or the controller is used for controlling the cold air supply mechanism to be closed when the temperature in the inner container is lower than the first set value.

Preferably, as an implementation mode, a second temperature sensor is installed in the casing, and the second temperature sensor is located on one side of the valve core, which is away from the inner container; the second temperature sensor is electrically connected with a controller of the steam cooking device, and the controller is used for controlling the steam cooking device to stop cooking when the temperature at the second temperature sensor exceeds a second set value.

Compared with the prior art, the utility model has the advantages of:

the utility model provides an air valve mainly comprises casing, case, worm wheel, worm and power unit, and wherein, power unit can drive the worm and rotate, worm and worm wheel intermeshing transmission, worm wheel and the coaxial fixed of case, case and casing pin joint, case rotate and can open and close the air valve.

Because of with the coaxial fixed case of worm wheel and casing pin joint, the worm wheel can only be circumferential direction promptly, can not remove, so when power unit drive worm rotated, the worm wheel can take place to rotate, and finally, the worm wheel can drive the case and rotate, realizes opening and closing of pneumatic valve. When the air valve needs to be closed, the worm can be driven by the power mechanism to rotate clockwise (anticlockwise) until the valve core reaches the position for closing the air valve, and the power mechanism stops running; when the air valve is required to be opened, the worm can be driven by the power mechanism to rotate anticlockwise (clockwise), so that the valve core leaves the position for closing the air valve, and the power mechanism stops running after the position of the valve core meets the requirement.

That is to say, the utility model provides an air valve adopts worm gear mechanism as drive mechanism, transmits power unit's moment of torsion for the case to order about the case and rotate. In addition, the case can also rotate different angles as required, is convenient for open the opening of appropriate size according to actual need, and the practicality is stronger.

Therefore, the utility model provides an air valve, the in-process that opens and close all is difficult for appearing the jamming problem, and reliability and adaptability are stronger.

The utility model provides a steam cooking device, which comprises an inner container, a cold air supply mechanism and the air valve, wherein the inner container is provided with a mounting hole, and the air valve is arranged in the mounting hole of the inner container; when the air valve is opened, the cold air supply mechanism can blow air into the inner container.

Therefore, the steam cooking device provided by the utility model comprises all the advantages of the air valve, the clamping stagnation problem is not easy to occur in the opening and closing process of the air valve, and the reliability is strong; in addition, the case of pneumatic valve can rotate great angle to in the opening when increaseing the pneumatic valve and opening, and then, can increase the cold wind volume through the pneumatic valve in the unit interval, be convenient for improve the cooling efficiency of inner bag.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an air valve according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structural view of an air valve provided in an embodiment of the present invention in a closed state;

fig. 3 is a schematic cross-sectional view of an air valve provided in an embodiment of the present invention in an open state;

fig. 4 is a schematic view of an assembly structure of a valve core and a worm wheel in the air valve provided by the embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of another view angle of the air valve in a closed state according to an embodiment of the present invention;

fig. 6 is a schematic cross-sectional structural view of a seal ring in an air valve according to an embodiment of the present invention.

Icon:

100-a housing; 200-a valve core; 300-a worm gear; 400-a worm; 500-a motor; 600-a second temperature sensor;

110 — a first vent; 120-a second vent;

210-a cover plate; 220-sealing ring;

221-annular projection.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Referring to fig. 1 to 4, the present embodiment provides an air valve, which mainly includes a housing 100, a valve core 200, a worm wheel 300, a worm 400, and a power mechanism, wherein the power mechanism can drive the worm 400 to rotate, the worm 400 and the worm wheel 300 are engaged with each other for transmission, the worm wheel 300 and the valve core 200 are coaxially fixed, the valve core 200 is pivoted with the housing 100, and the valve core 200 rotates to open and close the air valve.

Because the valve core 200 coaxially fixed with the worm wheel 300 is pivoted with the housing 100, that is, the worm wheel 300 can only rotate in the circumferential direction and cannot move, when the power mechanism drives the worm 400 to rotate, the worm wheel 300 can rotate, and finally, the worm wheel 300 can drive the valve core 200 to rotate, so that the air valve can be opened and closed. When the air valve needs to be closed, the worm 400 can be driven by the power mechanism to rotate clockwise (anticlockwise) until the valve core 200 reaches the position for closing the air valve, and the power mechanism stops running; when the air valve needs to be opened, the worm 400 can be driven by the power mechanism to rotate anticlockwise (clockwise), so that the valve core 200 leaves a position for closing the air valve, and after the position of the valve core 200 meets the requirement, the power mechanism stops running.

That is, the air valve provided in this embodiment adopts the worm gear mechanism as the transmission mechanism, and transmits the torque of the power mechanism to the valve element 200, so as to drive the valve element 200 to rotate. In addition, the valve core 200 can rotate by different angles according to needs, so that an opening with a proper size can be conveniently opened according to actual needs, and the practicability is high.

Therefore, the air valve provided by the embodiment is not easy to have the clamping stagnation problem in the opening and closing processes, and has strong reliability and adaptability.

Specifically, referring to fig. 2 to 5, the housing 100 of the valve has a first vent 110 and a second vent 120 respectively located on both sides of a valve core 200, and the first vent 110 and the second vent 120 communicate with each other when the valve is opened. The valve core 200 comprises a cover plate 210 and a sealing ring 220, the sealing ring 220 is fixed on one side of the cover plate 210 facing the first vent 110, and after the valve core 200 is closed, the sealing ring 220 of the valve core 200 can seal the first vent 110, so that the sealing performance of the air valve can be improved, when the air valve is closed, steam in the inner container of the steam cooking device is not easy to leak out from the air valve, the closed cooking environment in the inner container of the steam cooking device is convenient to guarantee, and further, the cooking quality is guaranteed.

Preferably, referring to fig. 5 and 6, an annular protrusion 221 is disposed on a side of the sealing ring 220 facing the first air vent 110, a top end of the annular protrusion 221 can be pressed against a plane surrounding the first air vent 110, and the annular protrusion 221 is inclined from outside to inside toward the top end.

In the process of cooking food by the steam cooking device, the air valve is in a closed state, the air pressure in the inner container of the steam cooking device is higher than the external air pressure, the air pressure received by the inner side of the annular convex part 221 is higher than the air pressure received by the outer side of the annular convex part 221, namely, the annular convex part 221 has the force of expanding and deforming towards the outer side, and the top end of the annular convex part 221 is inclined from outside to inside towards the top end pressed on the peripheral plane of the first vent 110, so that the top end of the annular convex part 221 can still be tightly attached to the peripheral plane of the first vent 110 when deforming, and the sealing performance is stable.

Specifically, an annular mounting groove may be opened at one side of the cover plate 210 facing the first vent 110 to install the sealing ring 220 in the annular mounting groove, so that the annular mounting groove may limit the sealing ring 220, which may prevent the sealing ring 220 from excessively deforming to ensure the sealing effect of the sealing ring 220, and may also improve the connection stability between the cover plate 210 and the sealing ring 220.

In addition, the motor 500 may be used as the power mechanism, and the output shaft of the motor 500 may be coaxially fixed to the worm 400, so that the motor 500 operates to drive the worm 400 to rotate synchronously therewith.

Specifically, a coupling connection may be used between the output shaft of the motor 500 and the worm 400 to make the transmission more reliable.

The embodiment also provides a steam cooking device which comprises an inner container, a cold air supply mechanism and the air valve, wherein the inner container is provided with a mounting hole, and the air valve is mounted in the mounting hole of the inner container; when the air valve is opened, the cold air supply mechanism can blow air into the inner container.

Therefore, the steam cooking device provided by the embodiment comprises all the advantages of the air valve, the clamping stagnation problem is not easy to occur in the opening and closing processes of the air valve, and the reliability is high; in addition, the case of pneumatic valve can rotate great angle to in the opening when increaseing the pneumatic valve and opening, and then, can increase the cold wind volume through the pneumatic valve in the unit interval, be convenient for improve the cooling efficiency of inner bag.

Specifically, the sealing ring 220 of the valve core 200 is fixed on one side of the cover plate 210 of the valve core 200 facing the inner container, so that the sealing ring 220 can seal the steam in the inner container. That is, when the first vent 110 of the air valve faces the inner container, the second vent 120 of the air valve faces the cold air supply mechanism, and the air valve is opened and the cold air supply mechanism blows cold air towards the second vent 120, cold air is blown into the inner container through the first vent 110 of the air valve, so as to cool the inner container.

Specifically, the steam cooking device provided in the present embodiment is provided with a controller in a specific structure.

The controller can be electrically connected with the power mechanism, and after the steam cooking device finishes cooking, the controller can control the power mechanism to drive the air valve to open, so that the air valve can be opened in time, cold air blown out by the cold air supply mechanism can enter the inner container in time, and the cooling efficiency is improved; and the manual operation is not needed, the automation degree is higher, and the operation is very convenient.

The controller can also be electrically connected with the cold air supply mechanism, and after the steam cooking device finishes cooking, the controller can control the cold air supply mechanism to be opened, so that the cold air supply mechanism can be opened in time to blow cold air into the inner container in time, and the cooling efficiency is improved; and the manual operation is not needed, the automation degree is higher, and the operation is very convenient.

The controller may be selectively electrically connected to either one of the power mechanism and the cool air supply mechanism, or both of the power mechanism and the cool air supply mechanism.

Furthermore, a first temperature sensor can be installed in the inner container and electrically connected with the controller, and the first temperature sensor can detect the temperature in the inner container in real time and can transmit the detected temperature value to the controller.

When cold air that mechanism insufflates in the inner bag is supplied with to the cold wind makes the temperature in the inner bag reduce below the first setting value, the controller can judge according to the current temperature value that first temperature sensor sensing arrived that the gas temperature in for the inner bag reaches safe range, can not cause the injury to the user, at this moment, the controller can control power unit drive pneumatic valve and close to make the inner bag resume airtight state, prevent that outside unknown object from getting into the inner bag by the pneumatic valve and influencing steam cooking device and use. In addition, under the control of the controller, the air valve can be automatically closed in time without manual operation, so that the automation degree is higher and the operation is very convenient.

When the controller judges that the gas temperature in the inner bag reaches the safety range according to the current temperature value sensed by the first temperature sensor, the controller can also control the cold air supply mechanism to be closed, so that the cold air supply mechanism can be automatically closed in time under the control of the controller, the energy loss caused by the operation of the cold air supply mechanism is reduced, manual operation is not needed, the automation degree is higher, and the device is very convenient.

In particular, the first set point may be set to 75 ℃.

Preferably, the second temperature sensor 600 may be installed in the housing 100 of the air valve, and the second temperature sensor 600 may be installed at a side of the valve cartridge 200 facing away from the inner container, so that the second temperature sensor 600 is electrically connected to the controller of the steam cooking device.

In the process that the steam cooking device cooks food, the air valve is in a closed state, that is to say, if the air valve has good sealing performance, high-temperature steam in the inner container cannot leak from the air valve, and the temperature detected by the second temperature sensor 600 on the side of the valve core 200 departing from the inner container is not too high.

Can set for a second setting value in the controller, if the air valve leakproofness is good, the temperature of second temperature sensor 600 department just can not exceed this second setting value, if the air valve leakproofness goes wrong, lead to the high temperature steam in the inner bag to leak, the temperature of second temperature sensor 600 department will exceed this second setting value, at this moment, the controller can judge for the air valve trouble, and control steam cooking device stop the culinary art, so, just can prevent steam cooking device at the culinary art in-process, the continuous risk of leaking of steam, factor of safety is higher.

In particular, the second set value may be set to 70 ℃.

To sum up, the utility model discloses an air valve and steam cooking device, it has overcome a great deal of technical defect of the air valve among traditional steam cooking device. The air valve and the steam cooking device provided by the embodiment have the advantages that the clamping stagnation problem is not easy to occur in the opening and closing processes of the air valve, and the reliability is high; in addition, the case of pneumatic valve can rotate great angle to in the opening when increaseing the pneumatic valve and opening, and then, can increase the cold wind volume through the pneumatic valve in the unit interval, be convenient for improve the cooling efficiency of inner bag.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The air valve is characterized by comprising a shell (100), a valve core (200), a worm wheel (300), a worm (400) and a power mechanism, wherein the power mechanism is used for driving the worm (400) to rotate, the worm (400) and the worm wheel (300) are in meshed transmission, the worm wheel (300) and the valve core (200) are coaxially fixed, the valve core (200) is pivoted with the shell (100), and the valve core (200) rotates to be opened and closed.

2. The gas valve as claimed in claim 1, wherein the housing (100) has a first gas vent (110) and a second gas vent (120) respectively located at both sides of the valve core (200), the first gas vent (110) and the second gas vent (120) being communicated with each other when the gas valve is opened; the valve core (200) comprises a cover plate (210) connected with the shaft of the worm wheel (300) and a sealing ring (220), wherein the sealing ring (220) is fixed on one side, facing the first air vent (110), of the cover plate (210) and used for sealing the first air vent (110).

3. The gas valve as claimed in claim 2, wherein the side of the sealing ring (220) facing the first gas vent (110) is provided with an annular bulge (221), the top end of the annular bulge (221) is used for pressing against the periphery of the first gas vent (110), and the annular bulge (221) inclines from outside to inside towards the top end.

4. The gas valve as claimed in claim 2, wherein an annular mounting groove is opened at one side of the cover plate (210) facing the first gas vent (110), and the sealing ring (220) is mounted in the annular mounting groove.

5. An air valve according to any one of claims 1 to 4, characterized in that the power mechanism comprises a motor (500), and the output shaft of the motor (500) is coaxially fixed with the worm (400).

6. A steam cooking device is characterized by comprising an inner container, a cold air supply mechanism and an air valve according to any one of claims 1 to 5, wherein the inner container is provided with a mounting hole, the air valve is mounted in the mounting hole of the inner container, and when the air valve is opened, the cold air supply mechanism can blow air into the inner container.

7. Steam cooking device according to claim 6, characterised in that the sealing ring (220) of the cartridge (200) is fixed to the side of the cover plate (210) of the cartridge (200) facing the inner container.

8. The steam cooking device of claim 6, further comprising a controller;

9. The steam cooking device of claim 8, wherein a first temperature sensor is mounted in the inner container, the first temperature sensor being electrically connected to the controller;

10. Steam cooking device according to any of claims 6 to 9, characterised in that a second temperature sensor (600) is mounted in the housing (100), and in that the second temperature sensor (600) is located on the side of the cartridge (200) facing away from the inner container; the second temperature sensor (600) is electrically connected with a controller of the steam cooking device, and the controller is used for controlling the steam cooking device to stop cooking when the temperature at the second temperature sensor (600) exceeds a second set value.