Steam cooking device

Abstract

The present application discloses a steam cooking device, which belongs to the technical field of household electrical appliances. The steam cooking device includes a machine body, a steam generator, and a water tank for supplying liquid to the steam generator, a flow passage arranged between the water tank and the steam generator, and an injection structure for containing a descaling agent. The injection structure includes a valve, a connecting port connected to the flow passage, and a driving member for driving the valve to switch between an open position for opening the connecting port and a closed position for closing the connecting port. By setting the injection structure, when the cooking device is in a cleaning mode, the descaling agent in the injection structure and the water in the water tank flow into the steam generator for automatic descaling. When the solution containing the descaling agent is used up, the water subsequently provided by the water tank enters the steam generator, and there is no need for the user to refill water into the water tank to rinse the steam generator. At the same time, the descaling agent is separated from the water tank, and there is no need to clean the water tank after using the water tank.

Description

Technical Field

[0001] The present application belongs to the technical field of household electrical appliances, and in particular, relates to a steam cooking device. Background Art

[0002] Existing steam cooking devices usually include a steam generator and a water tank for providing liquid to the steam generator. When the steam cooking device is used, the steam generator is used to heat water to generate steam to provide a steam heat source for cooking food. However, when using non-pure water for heating, the steam generator will produce scale, especially when used in areas with hard water, the scale problem will be more serious. And as the scaling time increases, the scale will be more difficult to clean, eventually leading to pipe blockage. In order to slow down or even eliminate these scales, descaling agents such as citric acid are usually injected into the water tank, and the steam generator and the like are cleaned in combination with the cleaning program of the steam cooking appliance. After the cleaning work is completed, water is added to the water tank again, and the cleaning program is run again to clean the residual descaling agent.

[0003] The above method requires injecting descaling agent into the water tank when running the cleaning program for the first time. After cleaning is completed, clean water needs to be poured into the water tank and the cleaning program needs to be run again to rinse off the residue. The operation is relatively complicated and the cleaning time is long. Moreover, the user needs to be on guard at all times to complete the entire cleaning process. One-click automatic descaling cannot be achieved, which seriously affects the consumer experience. Summary of the invention

[0004] The present application provides a steam cooking device to solve at least one of the above technical problems.

[0005] The technical solution adopted in the present application is: a steam cooking device, comprising a body, a steam generator and a water tank for supplying liquid to the steam generator, a flow passage arranged between the water tank and the steam generator, and an injection structure for holding a descaling agent, the injection structure comprising a valve, a connecting port connected to the flow passage, and a driving member driving the valve to switch between an open position for opening the connecting port and a closed position for closing the connecting port; in the closed position, water in the water tank flows into the steam generator through the flow passage; in the open position, the descaling agent of the injection structure and the water in the water tank flow into the steam generator through the flow passage.

[0006] The steam cooking device in this application also has the following additional technical features:

[0007] The driving member includes a pressing portion and a push rod connecting the pressing portion and the valve, the pressing portion pushes the push rod to perform linear motion to drive the valve to switch between the open position and the closed position, the push rod is provided with a storage groove for holding the descaling agent, and the storage groove has an open end.

[0008] The pressing portion has an initial position and a pressing position. When the pressing portion is located at the initial position, the valve is located at the closed position. When the pressing portion is located at the pressing position, the valve is located at the open position. The pressing portion also has a placement position in which at least a portion of the storage slot is located outside the body.

[0009] The valve is made of elastic material.

[0010] The valve includes a connecting portion connected to the push rod and a sealing portion fixedly connected to the connecting portion, the sealing portion includes a fixed end connected to the connecting portion and a free end away from the fixed end, and the free end extends in a direction close to the connecting port to form a flared area on a side of the valve facing the connecting port.

[0011] The steam cooking device is provided with a delivery port for delivering the descaling agent, the pressing portion has an initial position and a pressing position, when the pressing portion is located at the pressing position, the valve is in the open position, when the pressing portion is located at the initial position, the valve is in the closed position, and the delivery port is directly opposite to the storage tank.

[0012] The steam cooking device is provided with a reset member for driving the valve to move from the open position to the closed position.

[0013] The steam cooking device further comprises a guide slot adapted to the driving member, and a sealing member arranged on the driving member and / or the guide slot, wherein the sealing member is respectively sealed with the driving member and the guide slot to close the guide slot.

[0014] The driving member includes a rotating part and a push rod connecting the rotating part and the valve, the rotating part and the push rod are spirally driven to convert the rotating motion of the rotating part into the linear motion of the push rod, and the push rod is provided with a storage tank for containing the descaling agent, and the storage tank has an open end.

[0015] The steam cooking device is provided with a limiting portion, and the limiting portion cooperates with the driving member to limit the driving member to a state where the valve is in the closed position.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are:

[0017] 1. The present application provides an injection structure for containing a descaling agent in a steam cooking device, wherein the injection structure comprises a valve, a communication port connected to the flow passage, and a driving member for driving the valve to switch between an open position that opens the communication port and a closed position that closes the communication port. When the steam cooking device is in a cooking mode, the communication port is in a closed position, and water in the water tank flows into the steam generator through the flow passage, so that the steam generator can generate steam to cook food. When the steam cooking device is switched to a cleaning mode, the valve is driven by controlling the driving member to move. The connecting port is placed in an open position, so that the descaling agent of the injection structure and the water in the water tank flow into the steam generator through the flow channel to automatically descal the steam generator and pipelines. When the solution with the descaling agent is used up, the water subsequently provided by the water tank can enter the steam generator, pipelines and other components to flush the scale residues in the pipelines and steam generator, thereby ensuring the cleanliness of the steam generator and pipelines and extending the service life of the steam generator. At the same time, there is no need for the user to inject water into the water tank for a second time to flush the pipelines and steam generator, thereby realizing a step-saving cleaning operation.

[0018] At the same time, the descaling agent is arranged in the injection structure to separate the descaling agent from the water tank. The switching between the cleaning mode and the cooking mode is achieved by switching the water circuit. Compared with the traditional method of placing the descaling agent in the water tank, this application ensures the cleanliness of the water in the water tank on the one hand; on the other hand, there is no need to clean the water tank after use, which improves the user experience.

[0019] 2. As a preferred embodiment of the present application, by setting the driving member to include a pressing part and a push rod connecting the pressing part and the valve, and the pressing part pushes the push rod to perform linear motion to drive the valve to switch between the open position and the closed position, the overall structure is simple and easy to assemble, which reduces the production cost and improves the assembly efficiency. At the same time, by setting a storage tank for holding the descaling agent on the push rod, the placement position of the descaling agent is precisely adjusted, which is convenient for the user to put the descaling agent into the storage tank, and the storage tank has an open end, so that when the user needs to put the valve in the open position, the push rod is pushed to move linearly and drive the valve to open. At this time, the open end directly faces the water flow, which is convenient for the descaling agent in the storage tank to be quickly dispersed by the water flow to accelerate the dissolution rate of the descaling agent, and is smoothly taken away from the storage tank to follow the water flow into the steam generator to automatically descale the steam generator and pipelines, etc., reduce the residual descaling agent in the storage tank, and make the subsequent cleaning more thorough.

[0020] 3. As a preferred embodiment of the present application, the pressing portion is arranged to have an initial position and a pressing position, and when the pressing portion is in the initial position, the valve is in the closed position, and when the pressing portion is in the pressing position, the valve is in the open position, so that the user can control the valve easily, the operation is convenient, and the user experience is improved.

[0021] At the same time, the pressing part also has a placement position that makes at least a partial area of ​​the storage slot located on the outside of the body, so that when the user needs to put the descaling agent into the storage slot, he can operate the driving member and put the pressing part in the placement position to put the descaling agent into the storage slot. Compared with the technical solution of setting a telescopic rod to pull the storage slot out to the placement position, this solution has a simpler structure and lower cost.

[0022] 4. As a preferred embodiment of the present application, by setting the valve to be made of elastic material, when the user controls the driving member to move from the initial position or the pressing position to the delivery position and then returns to the initial position or the pressing position, the valve can be restored to its original state under the action of its own elasticity, without the need for manual operation by the user, thereby improving the user experience and preventing the user from forgetting to restore the driving member to its original state after delivering the descaling agent, thereby ensuring the smooth operation of the steam cooking device.

[0023] 5. As a preferred embodiment of the present application, the valve is configured to include a connection portion connected to the push rod and a sealing portion fixedly connected to the connection portion, and the sealing portion includes a fixed end connected to the connection portion and a free end away from the fixed end, and the free end extends in a direction close to the connecting port to form a flared area on the side of the valve facing the connecting port, so that when the valve is in an open position, when the fluid flows through the valve, the movement space of the fluid from the inlet side to the outlet side first changes from large to small, then from small to large, and then from large to small again, and the change in volume causes the divergence of the fluid to change, thereby changing the vorticity of the fluid, and easily forming eddies in the guide groove and the flared area, so that the fluid can break up the descaling agent and improve the dissolution rate of the descaling agent. At the same time, when the valve is in a closed position, the fluid flows under the seal, which will give the seal a certain fluid pressure, making it convenient for the valve to close the connecting port under the action of the fluid pressure and improving the sealing performance of the valve.

[0024] 6. As a preferred embodiment of the present application, a placement port for placing a descaling agent is provided in the steam cooking device, and the valve is in the closed position, and the placement port is directly opposite to the storage tank, so that the user can place the descaling agent into the storage tank through the placement port, which is convenient for the user to place the descaling agent. And the descaling agent can only be placed when the valve is in the closed position, which avoids the descaling agent overflowing into the flow channel due to the opening of the valve in the non-cleaning mode, causing the descaling agent to flow into the steam generator in the normal cooking mode.

[0025] 7. As a preferred embodiment of the present application, a reset member is provided for driving the valve to move from the open position to the closed position, so that the valve can move from the open position to the closed position by means of the reset action of the reset member, without the need for the user to manually reset it. At the same time, the valve can improve the sealing performance in the closed position by means of the elastic force of the reset member, thereby ensuring the smooth passage of water.

[0026] 8. As a preferred embodiment of the present application, by providing a guide slot adapted to the driving member, the guide slot plays a certain guiding and limiting role on the driving member, making the movement of the driving member more stable, avoiding the situation where the valve position cannot be switched due to the jamming thereof. At the same time, by providing a sealing member, the liquid in the guide slot is prevented from flowing out of the injection structure, ensuring the sealing of the injection structure, and preventing the liquid in the guide slot from flowing to the outside, causing the cooking device to not work properly.

[0027] 9. As a preferred embodiment of the present application, the driving member is configured to include a rotating part and a push rod connecting the rotating part and the valve, and the rotating part and the push rod are spirally transmitted to convert the rotational motion of the rotating part into the linear motion of the push rod, so that the user can drive the push rod to achieve linear motion when rotating the rotating part, so as to achieve the switching of the valve between the open position and the closed position, and after the rotating part rotates into place, the rotating part will be positioned in the injection structure, thereby ensuring the stability of the valve in the open position or the closed position, thereby improving the working stability of the cooking device. At the same time, by arranging a storage tank for containing the descaling agent on the push rod, the placement position of the descaling agent is accurately adjusted, which makes it convenient for users to put the descaling agent into the storage tank. Moreover, the storage tank has an open end, so that when the user needs to open the valve, he pushes the push rod to move linearly and drive the valve to open. At this time, the open end faces the water flow, which makes it convenient for the descaling agent in the storage tank to be quickly broken up by the water flow to accelerate the dissolution rate of the descaling agent, and is smoothly taken away from the storage tank to follow the water flow into the steam generator to automatically descale the steam generator and pipelines, thereby reducing the residual descaling agent in the storage tank and making subsequent cleaning more thorough.

[0028] 10. As a preferred embodiment of the present application, a limiting portion is provided, and the limiting portion cooperates with the driving member to limit the driving member to a state where the valve is in the closed position, thereby ensuring that the driving member does not move arbitrarily under the limiting action of the limiting portion when the valve is in the closed position, thereby improving the stability of the valve in the closed position and preventing the driving member from moving when the valve is in the closed position, resulting in the valve not being closed tightly and causing liquid overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0030] Figure 1 This is a schematic structural diagram of a steam cooking device in one embodiment of the present application;

[0031] Figure 2 A cross-sectional view of a steam cooking device according to an embodiment of the present application;

[0032] Figure 3 This is a schematic diagram of the connection between a water tank, an injection structure and a steam generator in one embodiment of the present application;

[0033] Figure 4 A cross-sectional view of the injection structure when the valve is in a closed position according to an embodiment of the present application;

[0034] Figure 5 A cross-sectional view of the injection structure when the valve is in an open position according to an embodiment of the present application;

[0035] Figure 6 A cross-sectional view of a driving member according to an embodiment of the present application.

[0036] in,

[0037] 1- body;

[0038] 2- Water tank;

[0039] 3- Steam generator;

[0040] 4-flow channel;

[0041] 5-injection structure, 51-driving member, 511-push rod, 5111-storage slot, 5112-open end, 512-pressing portion, 52-connecting port, 53-valve, 531-sealing portion, 5311-fixed end, 5312-free end, 532-connecting portion, 54-guide slide groove;

[0042] 6-Reset piece;

[0043] 7- Seals. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0046] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and 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 therefore should not be understood as a limitation on the present application.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0049] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the present application discloses a steam cooking device, comprising a machine body 1, a steam generator 3 and a water tank 2 for supplying liquid to the steam generator 3, a flow passage 4 arranged between the water tank 2 and the steam generator 3, and an injection structure 5 for containing a descaling agent, wherein the injection structure 5 comprises a valve 53, a communication port 52 communicated with the flow passage 4, and a driving member 51 for driving the valve 53 to switch between an open position for opening the communication port 52 and a closed position for closing the communication port 52; in the closed position, water in the water tank 2 flows into the steam generator 3 through the flow passage 4; in the open position, the descaling agent in the injection structure 5 and the water in the water tank 2 flow into the steam generator 3 through the flow passage 4.

[0050] The liquid injected into the water tank 2 described in the present application is raw water, which refers to non-purified water, i.e. municipal tap water. Of course, pure water, distilled water, etc. can also be injected into the water tank 2. At the same time, a descaling agent is injected into the injection structure 5. As a preferred embodiment of the present application, the descaling agent is a mixed solution of water and citric acid, and the citric acid is usually food-grade citric acid. The cleaning liquid thus configured is safe and hygienic, and will not cause damage to the steam generator 3 and the pipeline. Of course, the descaling agent described in the present application is not limited to a mixed solution of water and citric acid, and other cleaning liquids in the prior art (such as baking soda, acetic acid, etc.) can also be used to prepare the descaling agent.

[0051] The present application provides an injection structure 5 for containing a descaling agent, and the injection structure 5 includes a valve 53, a communication port 52 communicated with the flow passage 4, and a driving member 51 for driving the valve 53 to switch between an open position that opens the communication port 52 and a closed position that closes the communication port 52. When the steam cooking device is in a cooking mode, the communication port 52 is in a closed position, and water in the water tank 2 flows into the steam generator 3 through the flow passage 4, so that the steam generator 3 can generate steam to cook food. When the steam cooking device is switched to a cleaning mode, the valve 53 is driven by controlling the driving member 51 to move. The connecting port 52 is placed in an open position, so that the descaling agent of the injection structure 5 and the water in the water tank 2 flow into the steam generator 3 through the flow channel 4 to automatically descal the steam generator 3 and the pipelines, etc. When the solution with the descaling agent is used up, the water subsequently provided by the water tank 2 can enter the steam generator 3 and the pipelines and other components to flush the scale residues in the pipelines and the steam generator 3, thereby ensuring the cleanliness of the steam generator 3 and the pipelines and extending the service life of the steam generator 3. At the same time, there is no need for the user to inject water into the water tank 2 for a second time to flush the pipelines and the steam generator 3, thereby realizing a step-saving cleaning operation.

[0052] At the same time, the descaling agent is arranged in the injection structure 5, so that the descaling agent is separated from the water tank 2, and the switching between the cleaning mode and the cooking mode is realized by switching the water circuit. Compared with the traditional method of placing the descaling agent in the water tank 2, the present application ensures the cleanliness of the water in the water tank 2 on the one hand; on the other hand, there is no need to clean the water tank 2 after use, which improves the user experience.

[0053] It should be noted that the present application does not specifically limit the structure of the driving member 51, which may be any one of the following embodiments:

[0054] Example 1: Figure 4 , Figure 6 As shown, in this embodiment, the driving member 51 includes a pressing portion 512 and a push rod 511 connecting the pressing portion 512 and the valve 53, the pressing portion 512 pushes the push rod 511 to make a linear motion to drive the valve 53 to switch between the open position and the closed position, the push rod 511 is provided with a storage groove 5111 for holding the descaling agent, and the storage groove 5111 has an open end 5112.

[0055] By configuring the driving member 51 to include a pressing portion 512 and a push rod 511 connecting the pressing portion 512 and the valve 53, and the pressing portion 512 pushes the push rod 511 to perform linear motion to drive the valve 53 to switch between the open position and the closed position, the overall structure is simple and easy to assemble, thereby reducing production costs and improving assembly efficiency. At the same time, by providing a storage tank 5111 for containing the descaling agent on the push rod 511, the placement position of the descaling agent is precisely adjusted, which is convenient for the user to put the descaling agent into the storage tank 5111, and the storage tank 5111 has an open end 5112, so that when the user needs to open the valve 53, the push rod 511 can move linearly and drive the valve 53 to open. At this time, the open end 5112 directly faces the water flow, which makes it convenient for the descaling agent in the storage tank 5111 to be quickly broken up by the water flow to accelerate the dissolution rate of the descaling agent, and is smoothly taken away from the storage tank 5111 to follow the water flow into the steam generator 3 to automatically descale the steam generator 3 and the pipeline, thereby reducing the residual descaling agent in the storage tank 5111 and making the subsequent cleaning more thorough.

[0056] It should be further noted that the present application does not specifically limit the method of adding the descaling agent in this embodiment, which can be any one of the following embodiments:

[0057] Implementation method 1: Figure 4 , Figure 5As shown, in this embodiment, the pressing portion 512 has an initial position and a pressing position. When the pressing portion 512 is located at the initial position, the valve 53 is located at the closed position. When the pressing portion 512 is located at the pressing position, the valve 53 is in the open position. The pressing portion 512 also has a placement position in which at least a portion of the storage slot 5111 is located outside the body 1.

[0058] By setting the pressing portion 512 to have an initial position and a pressing position, and when the pressing portion 512 is in the initial position, the valve 53 is in the closed position, and when the pressing portion 512 is in the pressing position, the valve 53 is in the open position, it is convenient for the user to control the valve 53, the operation is convenient, and the user experience is improved.

[0059] At the same time, the pressing portion 512 also has a placement position that enables at least a partial area of ​​the storage slot 5111 to be located on the outside of the body 1, so that when the user needs to put the descaling agent into the storage slot 5111, the descaling agent can be put into the storage slot 5111 by operating the driving member 51 and placing the pressing portion 512 in the placement position. Compared with the technical solution of setting a telescopic rod to pull the storage slot 5111 out to the placement position, this solution has a simpler structure and lower cost.

[0060] Furthermore, the valve 53 is made of elastic material.

[0061] By setting the valve 53 to be made of elastic material, when the user controls the driving member 51 to move from the initial position or the pressing position to the delivery position and then return to the initial position or the pressing position, the valve 53 can be restored to its original state under the action of its own elasticity, without the need for manual operation by the user, thereby improving the user experience and preventing the user from forgetting to restore the driving member 51 to its original state after delivering the descaling agent, thereby ensuring the smooth operation of the steam cooking device.

[0062] Furthermore, if Figure 4 , Figure 5 As shown, the valve 53 includes a connecting portion 532 connected to the push rod 511 and a sealing portion 531 fixedly connected to the connecting portion 532, the sealing portion 531 includes a fixed end 5311 connected to the connecting portion 532 and a free end 5312 away from the fixed end 5311, and the free end 5312 extends toward a direction close to the connecting port 52 to form a flared area on the side of the valve 53 facing the connecting port 52.

[0063] The expansion area is arranged so that when the valve 53 is in the open position, Figure 5The valve 53 is shown in the open position, and the arrow indicates the direction of fluid flow. It can be seen that when the fluid flows through the valve 53, the movement space of the fluid from the inlet side to the outlet side first changes from large to small, then from small to large, and then from large to small again. The change in volume causes the divergence of the fluid to change, thereby changing the vorticity of the fluid, and it is very easy to form vortices in the guide groove 54 and the expansion area, so that the fluid can disperse the descaling agent and increase the dissolution rate of the descaling agent. At the same time, Figure 4 As shown, the arrow indicates the fluid flow direction when the valve 53 is in the closed position. When the valve 53 is in the closed position, the fluid flows under the seal 7, which will give the seal 7 a certain fluid pressure, making it convenient for the valve 53 to close the connecting port 52 under the action of the fluid pressure, thereby improving the sealing performance.

[0064] Embodiment 2: In this embodiment, the steam cooking device is provided with a delivery port for delivering the descaling agent, the pressing portion 512 has an initial position and a pressing position, when the pressing portion 512 is located at the pressing position, the valve 53 is in the open position, when the pressing portion 512 is located at the initial position, the valve 53 is in the closed position, and the delivery port is opposite to the storage slot 5111.

[0065] By providing a placement port for placing the descaling agent in the steam cooking device, and the valve 53 being located in the closed position, the placement port is directly opposite to the storage tank 5111, so that the user can place the descaling agent into the storage tank 5111 through the placement port, which is convenient for the user to place the descaling agent. The descaling agent can only be placed when the valve 53 is in the closed position, which avoids the descaling agent overflowing into the flow channel 4 due to the opening of the valve 53 in the non-cleaning mode, and causing the descaling agent to flow into the steam generator 3 and the pipeline in the normal cooking mode.

[0066] As a preferred implementation under this embodiment, Figure 4 As shown, the steam cooking device is provided with a reset member 6 for driving the valve 53 to move from the open position to the closed position.

[0067] By providing a reset member 6 for driving the valve 53 to move from the open position to the closed position, the valve 53 can be moved from the open position to the closed position by means of the reset function of the reset member 6, without the need for manual reset by the user. At the same time, the valve 53 can improve the sealing performance in the closed position by means of the elastic force of the reset member 6, thereby ensuring the smooth passage of water.

[0068] It should be noted that the present application does not specifically limit the structure of the reset member 6, which may be a spring, a silicone sleeve, a rubber sleeve, etc. Figure 4 As shown, the reset member 6 in this embodiment is preferably a spring, which has a simpler and more reliable structure and a longer service life.

[0069] As a preferred implementation under this embodiment, Figure 4 As shown, the steam cooking device further comprises a guide slot 54 adapted to the driving member 51, and a sealing member 7 disposed on the driving member 51 and / or the guide slot 54, wherein the sealing member 7 is respectively sealed with the driving member 51 and the guide slot 54 to close the guide slot 54. Preferably, the sealing member 7 is disposed on the driving member 51.

[0070] By providing a guide slot 54 adapted to the driving member 51, the guide slot 54 plays a certain guiding and limiting role on the driving member 51, so that the movement of the driving member 51 is more stable, and the situation that the valve 53 cannot be switched due to the jamming of the driving member 51 is avoided. At the same time, by providing a sealing member 7, the liquid in the guide slot 54 is prevented from flowing out of the injection structure 5, the sealing of the injection structure 5 is ensured, and the situation that the liquid in the guide slot 54 flows to the outside and the cooking device cannot work normally is avoided.

[0071] Embodiment 2: In this embodiment, the driving member 51 includes a rotating part and a push rod 511 connecting the rotating part and the valve 53, the rotating part and the push rod 511 are spirally driven to convert the rotational motion of the rotating part into linear motion of the push rod 511, and the push rod 511 is provided with a storage groove 5111 for holding the descaling agent, and the storage groove 5111 has an open end 5112.

[0072] By configuring the driving member 51 to include a rotating part and a push rod 511 connecting the rotating part and the valve 53, the rotating part and the push rod 511 are spirally driven to convert the rotational motion of the rotating part into the linear motion of the push rod 511, so that the push rod 511 can be driven to achieve linear motion when the user rotates the rotating part, so as to achieve the switching of the valve 53 between the open position and the closed position, and after the rotating part rotates into place, the rotating part will be positioned in the injection structure 5, thereby ensuring the stability of the valve 53 in the open position or the closed position, thereby improving the stability of the cooking device. At the same time, by providing a storage tank 5111 for containing the descaling agent on the push rod 511, the placement position of the descaling agent is precisely adjusted, which is convenient for the user to put the descaling agent into the storage tank 5111, and the storage tank 5111 has an open end 5112, so that when the user needs to open the valve 53, the push rod 511 can move linearly and drive the valve 53 to open. At this time, the open end 5112 directly faces the water flow, which makes it convenient for the descaling agent in the storage tank 5111 to be quickly broken up by the water flow to accelerate the dissolution rate of the descaling agent, and is smoothly taken away from the storage tank 5111 to follow the water flow into the steam generator 3 to automatically descale the steam generator 3 and the pipeline, thereby reducing the residual descaling agent in the storage tank 5111 and making the subsequent cleaning more thorough.

[0073] As a preferred embodiment of the present application, the steam cooking device is provided with a limiting portion, and the limiting portion cooperates with the driving member 51 to limit the driving member 51 to a state where the valve 53 is in the closed position.

[0074] By providing a limiting portion, and the limiting portion and the driving member 51 are limited to limit the driving member 51 to a state where the valve 53 is in the closed position, it is ensured that when the valve 53 is in the closed position, the driving member 51 will not move arbitrarily under the limiting action of the limiting portion, thereby improving the stability of the valve 53 in the closed position and avoiding the situation where the driving member 51 moves when the valve 53 is in the closed position, resulting in the valve 53 not being closed tightly and causing liquid overflow.

[0075] It needs to be further explained that Figure 1 The structural shape of a steam cooking appliance under an embodiment of the present application is given, but it does not constitute a limitation on the steam cooking appliance described in the present application. The structural shape of the steam cooking appliance described in the present application can also be a body with a U-shaped frame, the body is provided with a pot placement space, the water tank 2 is arranged in the body, the steam generator 3 is arranged in the body, the body is provided with a head, the head is provided with a steam exhaust port, the body can be moved to dock with the pot located in the pot placement space to achieve steam delivery, and the steam cooking appliance of this type of configuration can also use the injection structure 5 in the present application.

[0076] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0077] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0078] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A steam cooking device, comprising a machine body, a steam generator and a water tank for supplying liquid to the steam generator, and a flow passage arranged between the water tank and the steam generator, characterized in that: It also includes an injection structure for containing a descaling agent, the injection structure including a valve, a communication port communicating with the flow passage, and a driving member driving the valve to switch between an open position for opening the communication port and a closed position for closing the communication port; In the closed position, the water in the water tank flows into the steam generator through the flow passage; in the open position, the descaling agent of the injection structure and the water in the water tank flow into the steam generator through the flow passage; The driving member includes a push rod connected to the valve, the valve includes a connecting portion connected to the push rod and a sealing portion fixedly connected to the connecting portion, the sealing portion includes a fixed end connected to the connecting portion and a free end away from the fixed end, the free end extends in a direction close to the connecting port to form a flared area on a side of the valve facing the connecting port.

2. A steam cooking device according to claim 1, characterized in that: The driving member includes a pressing part, the push rod is connected to the pressing part, the pressing part pushes the push rod to make a linear motion to drive the valve to switch between the open position and the closed position, and the push rod is provided with a storage tank for holding the descaling agent, and the storage tank has an open end.

3. A steam cooking device according to claim 2, characterized in that: The pressing portion has an initial position and a pressing position. When the pressing portion is located at the initial position, the valve is located at the closed position. When the pressing portion is located at the pressing position, the valve is located at the open position. The pressing portion further has a placement position that enables at least a partial area of ​​the storage slot to be located outside the body.

4. A steam cooking device according to claim 3, characterized in that: The valve is made of elastic material.

5. The steam cooking device according to claim 2, characterized in that: The steam cooking device is provided with a delivery port for delivering the descaling agent, the pressing portion has an initial position and a pressing position, when the pressing portion is located at the pressing position, the valve is in the open position, when the pressing portion is located at the initial position, the valve is in the closed position, and the delivery port is directly opposite to the storage tank.

6. A steam cooking device according to claim 2, characterized in that: The steam cooking device is provided with a reset member for driving the valve to move from the open position to the closed position.

7. The steam cooking device according to claim 2, characterized in that: The steam cooking device further comprises a guide slot adapted to the driving member, and a sealing member arranged on the driving member and / or the guide slot, wherein the sealing member is respectively sealed with the driving member and the guide slot to close the guide slot.

8. The steam cooking device according to claim 1, characterized in that: The driving member includes a rotating part, the push rod is connected to the rotating part, the rotating part and the push rod are spirally driven to convert the rotational motion of the rotating part into the linear motion of the push rod, and the push rod is provided with a storage groove for holding the descaling agent, and the storage groove has an open end.

9. A steam cooking device according to any one of claims 1 to 8, characterized in that: The steam cooking device is provided with a limiting portion, and the limiting portion cooperates with the driving member to limit the driving member to a state where the valve is in the closed position.

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