Electric steamer

Abstract

The utility model discloses an electric steamer, which relates to the technical field of household appliances, and comprises a water replenishing tank and a base, the base is provided with a heating water tank and a water replenishing tank which are communicated with each other, the water replenishing tank is communicated with the atmosphere, the water replenishing tank is arranged above the water replenishing tank, the lower end of the water replenishing tank is provided with a water outlet, the water outlet is provided with a block valve, and the block valve is connected with the water replenishing tank. A jacking seat corresponding to the block valve is arranged in the water supplementing tank, a water adding opening is formed in the water supplementing tank, and a sealing cover used for sealing the water adding opening is detachably connected to the water adding opening. The steamer provided by the utility model has the advantage that water can be added into the water replenishing tank without separating the water replenishing tank from the water replenishing tank when the electric steamer is in a working state and needs to be replenished with water.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to an electric steamer. Background Art

[0002] An electric steamer equipped with an independent water tank can be refilled with water at any time during the cooking process, which is convenient for users and reduces the risk of dry burning. For example, the electric steamer disclosed in the prior art CN102125387A is equipped with a detachable water tank. A water outlet controlled by a shut-off valve is provided at the bottom of the water tank. In daily use, the user must remove the water tank and unscrew the shut-off valve before adding water to the water tank. For users, a more convenient way of adding water is desired to avoid the tedious water-adding operation. Utility Model Content

[0003] The utility model aims to overcome the disadvantages of the prior art electric steamer with a water replenishing function that the water replenishing tank needs to be disassembled when adding water, which is cumbersome and inconvenient to replenish the water replenishing tank in time.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] An electric steamer includes a water supply tank and a base. The base is provided with a heating water tank and a water supply tank that are interconnected. The water supply tank is connected to the atmosphere. The water supply tank is installed above the water supply tank. A water outlet is provided at the lower end of the water supply tank. A shut-off valve is provided on the water outlet. A lifting seat corresponding to the shut-off valve is provided in the water supply tank. A water inlet is provided on the water supply tank. A sealing cover for sealing the water inlet is detachably connected to the water inlet.

[0006] With the aforementioned technical solution, a make-up water tank is installed above the make-up water tank. The two tanks are connected via a water outlet, allowing water to flow through the make-up water tank into the heating water tank. Because the make-up water tank is open to the atmosphere, the heating water tank and the make-up water tank form a communicating vessel, ensuring that the water level in the heating water tank is always equal to and low in the make-up water tank. Therefore, when steaming food, only a small amount of water in the heating water tank needs to be heated to quickly generate steam for cooking, shortening the time required to generate steam. As the water in the heating water tank evaporates, the water level drops, and the make-up water tank is continuously replenished by the make-up water tank. The water levels in the heating water tank and the heating water tank are always in dynamic equilibrium, effectively preventing the tank from drying out, saving time and reducing safety hazards. A shutoff valve is installed at the water outlet to prevent leakage when adding water to the make-up water tank. When the make-up water tank is installed on the make-up water tank, the lifting seat lifts the shutoff valve, connecting the make-up water tank and the water tank, allowing water from the make-up water tank to flow into the make-up water tank. The water tank is equipped with a water inlet, allowing users to add water directly through the inlet. This makes it especially convenient to use when the water tank is running low during steaming. A removable sealing cap seals the inlet when not in use. This cap ensures negative pressure in the tank during the filling process, preventing air from entering.

[0007] Furthermore, an extension portion is fixed on the sealing cover, and the extension portion is pivotally connected to the water replenishing tank.

[0008] By adopting the above-mentioned technical solution, it can be seen that the pivotal connection design between the extension part on the sealing cover and the water supply tank ensures that when the sealing cover is opened for operations such as adding water or cleaning, the sealing cover remains connected to the water supply tank, thereby effectively avoiding the problem of loss of the sealing cover and improving user convenience.

[0009] Furthermore, a pressing portion is fixed to one end of the extension portion away from the sealing cover, and a pivotal position between the extension portion and the water replenishing tank is provided between the pressing portion and the sealing cover.

[0010] By adopting the above-mentioned technical solution, it can be seen that since the pivotal position is located between the pressing portion and the sealing cover, the pivotal position can be used as a leverage point. The water supply tank is in a negative pressure state, which will increase the suction force between the sealing cover and the water supply tank. It will be difficult to open the sealing cover directly by hand. Due to the material or design reasons, the sealing cover may be too smooth, which increases the difficulty of manual opening. Therefore, by setting a pressing portion, the user can use the lever principle to assist in opening the sealing cover.

[0011] Furthermore, an annular sealing portion is provided on the outer edge of the water inlet, an upper end surface of the annular sealing portion is provided with a sealing ring groove, and the lower end surface of the sealing cover extends into the sealing ring groove and is sealed and connected to the annular sealing portion.

[0012] By adopting the above-mentioned technical solution, it can be seen that the cooperation between the annular sealing part and the sealing ring groove utilizes the pressure difference and friction between the physical contact surfaces to enhance the sealing effect. When the sealing cover is pressed down and extends into the sealing ring groove, the annular sealing part will be squeezed by the sealing cover, thereby causing deformation, further increasing the contact area and contact tightness with the sealing cover. At the same time, the sealing ring groove can guide the lower end face of the sealing cover to move along a specific trajectory, ensuring the accuracy and stability of the seal. The negative pressure state in the water replenishment tank helps to enhance the sealing effect at the water filling port. The increase in the sealing effect also ensures the stability of the negative pressure state in the water replenishment tank, forming a virtuous circle and improving the sealing at the water filling port.

[0013] Furthermore, the bottom end of the water replenishment tank is supported on the bottom of the water replenishment trough, and a gap is provided between the trough wall of the water replenishment trough and the bottom side wall of the water replenishment tank to allow the water replenishment tank to move laterally in the water replenishment trough, and the shut-off valve is switched to an open or closed state by the lateral movement of the water replenishment tank.

[0014] By adopting the above-mentioned technical solution, it can be seen that the water replenishing tank has a certain movable space in the water replenishing tank and can move laterally, forming two positions: the water replenishing position and the water adding position, which determine the connectivity between the water replenishing tank and the water replenishing tank. When the water replenishing tank is at the water replenishing position, the lifting seat is aligned with the shut-off valve and pushes open the shut-off valve, so that the water in the water replenishing tank can flow into the water replenishing tank through the opened shut-off valve, providing the required moisture for the steamer. When the water replenishing tank is at the water adding position, the lifting seat and the shut-off valve are staggered, and the shut-off valve is in a closed state. At this time, the water flow channel between the water replenishing tank and the water replenishing tank is cut off, and the water in the water replenishing tank will not flow into the water replenishing tank. The user can add water to the water replenishing tank through the water filling port, and there is no need to take the water replenishing tank out of the water replenishing tank for water replenishment. Only a slight horizontal movement of the water replenishing tank is required, which improves the convenience of use and work efficiency of the electric steamer.

[0015] Furthermore, the shut-off valve includes a spring, a pressure plate and a contact rod for abutting the lifting seat, the contact rod is fixed to the pressure plate, the pressure plate is slidably connected to the water replenishing tank, and the spring is connected between the pressure plate and the water replenishing tank to make the pressure plate close to the water inlet and seal the water inlet.

[0016] By adopting the above-mentioned technical solution, it can be seen that the spring continuously provides elastic force to keep the pressure plate applying pressure in the direction of the water inlet, ensuring that the pressure plate can fit tightly on the water inlet when not affected by external force, effectively preventing water leakage. The opening and closing states of the water inlet can be switched by the movement of the pressure plate. When the water inlet is in the open state, the contact rod and the lifting seat are in abutment state; when the water inlet is in the closed state, the lifting seat and the contact rod are misaligned. At this time, the spring pushes the pressure plate to move toward the water inlet and ensures that the water inlet is well sealed in the closed state, effectively preventing leakage during the water adding process. The overall structure is relatively simple, and the components are easy to disassemble and replace, reducing maintenance costs and maintenance difficulties.

[0017] Furthermore, a downwardly protruding support baffle is provided at the lower end of the water replenishment tank, and the lower end of the support baffle abuts against the bottom surface of the water replenishment trough to form a water storage cavity between the bottom surface of the water replenishment trough and the water replenishment tank. A connecting cavity connected to the atmosphere is provided between the outer wall of the support baffle and the inner wall of the water replenishment trough, and a notch is provided on the support baffle to connect the water storage cavity with the connecting cavity. When the connecting cavity is filled with liquid, the notch is located below the liquid level of the liquid.

[0018] By adopting the above-mentioned technical solution, the connecting chamber is always connected to the atmosphere, and the water storage chamber and the connecting chamber are connected through the gap. When the connecting chamber is full of liquid, the gap is below the liquid level. At this time, the atmosphere cannot enter the water storage chamber through the gap. When the water level in the heating water tank drops, due to the principle of communicating vessels, the water levels in the water storage chamber and the connecting chamber drop at the same time, and the liquid level cannot seal the gap. At this time, the water supply tank is connected to the atmosphere through the water storage chamber. Due to the air pressure difference, the water supply tank replenishes water into the water storage chamber. When the liquid level seals the gap again, gas cannot enter the water storage chamber through the gap. When the air pressure in the water supply tank drops, an air pressure difference is formed in the water supply tank, and the air pressure difference is used to support the liquid in the water supply tank, so that the liquid in the water supply tank no longer flows out. When the liquid level in the heating water tank drops again, the gap will be connected to the atmosphere again, thereby realizing the dynamic balance between the water supply tank and the heating water tank through the gap, thereby achieving the effect of automatic water supply.

[0019] Furthermore, the lifting seat protrudes from the bottom surface of the water replenishing tank, and one end of the contact rod extends out of the water filling port. When the lifting seat abuts the contact rod, the abutting position of the two is within the water storage cavity.

[0020] By adopting the above-mentioned technical solution, it can be seen that the abutment position of the lifting seat and the contact rod is inside the water storage chamber, which can prevent the lifting seat and the contact rod from interfering with other structures during the switching of the water replenishment tank between the water replenishment position and the water addition position, thereby ensuring that the water replenishment tank can switch smoothly between the water replenishment position and the water addition position.

[0021] Furthermore, the contact rod is provided with a first conical surface, and the lifting seat is provided with a second conical surface. When the water replenishment tank is switched from the water filling position to the water replenishment position, the first conical surface contacts the second conical surface to make the contact rod move away from the bottom surface of the water replenishment tank.

[0022] By adopting the above-mentioned technical solution, it can be seen that in the process of switching the water replenishment tank from the water filling position to the water replenishment position, the first conical surface contacts the second conical surface to make the contact rod move away from the bottom surface of the water replenishment tank. The first conical surface and the second conical surface play a guiding role, which facilitates the lateral switching of the water replenishment tank, promotes the smooth switching of the water replenishment tank between different water levels, and ensures the smooth progress of the entire water replenishment process.

[0023] Furthermore, the heating water tank and the water supply tank are connected through a U-shaped tube, and the opening of the U-shaped tube faces upward.

[0024] By adopting the above technical solution, it can be seen that when water flows in the pipe, due to the effect of gravity, the liquid will naturally flow to the lower place, but in the U-shaped tube, the opening is facing upward, and the liquid in the U-shaped tube can still maintain an effective water seal, preventing the water level in the heating water tank from dropping to the water level where water replenishment is required. The liquid in the U-shaped tube can still maintain an effective water seal, preventing the hot steam in the heating water tank from entering the water replenishment tank through the U-shaped tube. By setting up the U-shaped tube, the water acts as a water seal in the bent part, effectively BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 It is a side sectional view of the utility model;

[0027] Figure 3 This is a partial structural diagram of the water replenishment tank in the utility model at the water replenishment position;

[0028] Figure 4 This is a partial structural diagram of the water replenishment tank in the utility model at the water filling position;

[0029] Figure 5 It is a partial schematic diagram of the position of the U-shaped tube of the present invention. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1As shown, an electric steamer includes a water replenishment tank 1 and a base 2, wherein the base 2 is provided with a heating water tank 21 and a water replenishment tank 22 which are interconnected, and the water replenishment tank 22 is connected to the atmosphere, and the water replenishment tank 1 is installed above the water replenishment tank 22, and a water outlet 11 is provided at the lower end of the water replenishment tank 1, and a shut-off valve 12 is provided on the water outlet 11, and a lifting seat 23 corresponding to the shut-off valve 12 is provided in the water replenishment tank 22, and a water inlet 13 is provided on the water replenishment tank 1, and a sealing cover 14 for sealing the water inlet 13 is detachably connected to the water inlet 13.

[0032] The water supply tank 1 is mounted above the water supply tank 22. The water supply tank 1 and the water supply tank 22 are connected via the water outlet 11. Water flows through the water supply tank 22 into the heating water tank 21. Since the water supply tank 22 is connected to the atmosphere, the heating water tank 21 and the water supply tank 22 form a communicating vessel, so that the water level in the heating water tank 21 is always equal to the water level in the water supply tank 22 and is in a low water level state. Therefore, when steaming food, only a small amount of water in the heating water tank 21 needs to be heated to quickly generate steam for steaming the food, shortening the time required to generate steam. As the water in the heating water tank 21 evaporates, the water level drops, and the water in the heating water tank 21 is continuously replenished by the water supply tank 22. The water levels in the heating water tank 21 are always in dynamic equilibrium, effectively preventing the water from drying out, saving time and reducing safety hazards. A shutoff valve 12 is provided on the water outlet 11 to prevent leakage when adding water to the water supply tank 1. When the water supply tank 1 is installed on the water supply tank 22, the lifting seat 23 lifts the shutoff valve 12, connecting the water supply tank 1 and the water supply tank 22, allowing water to flow from the water supply tank 1 into the water supply tank 22. The water supply tank 1 is also provided with a water inlet 13, through which users can add water directly. This improves ease of use, especially when the water supply tank 1 is running low while cooking in the electric steamer. There is no need to remove the water supply tank 1 from the water supply tank 22, which improves ease of use. A removable sealing cap 14 is provided on the water inlet 13 to seal the inlet 13 when not adding water. This sealing cap 14 ensures that the water supply tank 1 is always under negative pressure when adding water to the water supply tank 22, preventing external air from entering.

[0033] Further, such as Figure 1 and 2As shown, the electric steamer also includes a steamer 3, which is arranged above the heating water tank 21. The steam generated by the heating water tank 21 is directed upward to heat the food in the steamer 3. A cover 4 is also provided above the steamer 3, and the cover 4 is provided with an exhaust hole 41 for steam discharge and a heat-insulating handle 42 for easy hand-holding. The cover 4 can be made into a micro-arch with the middle slightly higher than the surrounding area and a water collecting tank and a sealing ring are provided at the edge. The micro-arch is conducive to guiding the condensed water generated by the hot steam, so that it slides along the cover 4 and collects the condensed water by utilizing the design of the water collecting tank, thereby preventing the condensed water from dripping onto the food and affecting the taste of the food or splashing onto the user. The design of the sealing ring is used to prevent hot steam from escaping from the edge and accidentally scalding the user, and also ensures the full circulation and utilization of the steam in the steamer 3, thereby improving the heating efficiency. The heat-insulating handle 42 can be mounted on the cover 4 by screws or formed as one piece.

[0034] According to the above, the steamer 3 is also provided with a number of small holes 31 for the circulation of hot steam. At the same time, the three steamers can be stacked on each other according to different food quantity requirements. The three steamers are prevented from escaping from the edge by adding sealing rings, thereby ensuring the full circulation and utilization of steam in the steamer 3 and improving the heating efficiency. The side of the steamer 3 is also provided with a handle 32 for easy taking to avoid burns, but the three steamers can also be stacked directly or a snap buckle can be added to ensure the stacking stability.

[0035] Preferably, a heating element 5 is provided below the heating water tank 21 , which may be a resistance wire or a heating film.

[0036] Furthermore, the bottom end of the water replenishment tank 1 is supported on the bottom of the water replenishment trough 22, and a gap is provided between the trough wall of the water replenishment trough 22 and the bottom side wall of the water replenishment tank 1 to allow the water replenishment tank 1 to move laterally in the water replenishment trough 22, and the shut-off valve 12 is switched to an open or closed state by the lateral movement of the water replenishment tank 1.

[0037] When the water supply is full, the lifting seat 23 is aligned with the shut-off valve 12 and the shut-off valve 12 is pushed open, so that the water in the water supply tank 1 can flow into the water supply tank 22 through the opened shut-off valve 12, providing the required moisture for the steamer. When the water supply tank 1 is in the water supply position, the lifting seat 23 is staggered with the shut-off valve 12, and the shut-off valve 12 is in the closed state. At this time, the water flow channel between the water supply tank 1 and the water supply tank 22 is cut off, and the water in the water supply tank 1 will not flow into the water supply tank 22. The user can add water to the water supply tank 1 through the water filling port 13, and there is no need to take the water supply tank 1 out of the water supply tank 22 for water replenishment. Only a slight horizontal movement of the water supply tank 1 is required, which improves the convenience and work efficiency of the electric steamer.

[0038] Further, such as Figure 1 and Figure 3 As shown, the shut-off valve 12 includes a spring 121, a pressure plate 122, a sealing ring and a contact rod 123 for abutting against the lifting seat 23. The contact rod 123 is fixed to the pressure plate 122. The pressure plate 122 is slidably connected to the water replenishing tank 1. The spring 121 is connected between the pressure plate 122 and the water replenishing tank 1 to make the pressure plate 122 close to the water outlet 11 and seal the water outlet 11. The sealing ring is installed between the pressure plate 122 and the water outlet 11.

[0039] It can be understood that the spring 121 continuously provides elastic force to keep the pressure plate 122 applying pressure toward the water outlet 11, ensuring that the pressure plate 122 can fit tightly on the water outlet 11 when not affected by external force, effectively preventing water leakage. The opening and closing states of the water outlet 11 can be switched by the movement of the pressure plate 122. When the water outlet 11 is in the open state, the contact rod 123 and the lifting seat 23 are in abutment state; when the water outlet 11 is in the closed state, the lifting seat 23 and the contact rod 123 are misaligned. At this time, the spring 121 pushes the pressure plate 122 to move toward the water outlet 11, and ensures that the water outlet 11 is well sealed in the closed state, effectively preventing leakage during the water adding process. The overall structure is relatively simple, and the components are easy to disassemble and replace, reducing maintenance costs and maintenance difficulties.

[0040] Preferably, the contact rod 123 is provided with a first conical surface 124, and the lifting seat 23 is provided with a second conical surface 24. When the water replenishment tank 1 switches from the water filling position to the water replenishment position, the first conical surface 124 contacts the second conical surface 24 to make the contact rod 123 move away from the bottom surface of the water replenishment groove 22.

[0041] It can be understood that, by adopting the above-mentioned technical solution, it can be seen that in the process of switching the water replenishment tank 1 from the water filling position to the water replenishment position, the first conical surface 124 contacts the second conical surface 24, so that the contact rod 123 moves away from the bottom surface of the water replenishment groove 22. The first conical surface 124 and the second conical surface 24 play a guiding role, which facilitates the lateral switching of the water replenishment tank 1, promotes the smooth switching of the water replenishment tank 1 between different water levels, and ensures the smooth progress of the entire water replenishment process.

[0042] like Figure 1 and Figure 2 As shown, the lower end of the water replenishment tank 1 is provided with a downwardly protruding support baffle 15, and the lower end of the support baffle 15 abuts against the bottom surface of the water replenishment tank 22 to form a water storage chamber 26 between the bottom surface of the water replenishment tank 22 and the water replenishment tank 1, and a connecting chamber 25 connected to the atmosphere is provided between the outer wall of the support baffle 15 and the inner wall of the water replenishment tank 22, and a notch 151 is provided on the support baffle 15 to connect the water storage chamber 26 with the connecting chamber 25. When the connecting chamber 25 is filled with liquid, the notch 151 is located below the liquid level of the liquid.

[0043] When the liquid level in the heating water tank 21 drops again, the gap 151 will be connected to the atmosphere again, thereby realizing the dynamic balance between the water replenishment tank 22 and the heating water tank 21 through the gap 151, thereby achieving the effect of automatic water replenishment.

[0044] When the lower end of the water replenishment tank 1 is placed on a plane, the shut-off valve 12 is in a closed state, and there is a gap between the lower end surface of the contact rod 123 and the plane, thereby avoiding water leakage caused by the opening of the shut-off valve 12 due to interference with the plane.

[0045] Further, such as Figure 3 and Figure 4As shown, the lifting seat 23 protrudes from the bottom surface of the water replenishing tank 22, and one end of the contact rod 123 extends out of the water filling port 13. When the lifting seat 23 abuts the contact rod 123, the abutting position of the two is in the water storage chamber 26.

[0046] like Figure 1 As shown, the water replenishment tank 22 is divided into a water storage chamber 26 and a communication chamber 25 .

[0047] It can be understood that the abutment position of the lifting seat 23 and the contact rod 123 is inside the water storage chamber 26, which can prevent the lifting seat 23 and the contact rod 123 from interfering with other structures during the switching of the water replenishment tank 1 between the water replenishment position and the water adding position, thereby ensuring that the water replenishment tank 1 can switch smoothly between the water replenishment position and the water adding position.

[0048] Preferably, the water replenishing tank 1 is made of a transparent heat-resistant material or is provided with a water window so that the water level changes in the water replenishing tank 1 can be observed in time, and water can be added to the water replenishing tank 1 in time to prevent the water from drying out. A scale line for measuring the amount of water can also be provided on the water tank, so that the appropriate amount of water can be added according to the heating of different foods, which is more convenient and intuitive.

[0049] In one embodiment, Figure 2 As shown, an extension portion 141 is fixed on the sealing cover 14 , and the extension portion 141 is pivotally connected to the water replenishing tank 1 .

[0050] It can be understood that the pivotal connection design between the extension portion 141 on the sealing cover 14 and the water replenishment tank 1 ensures that when the sealing cover 14 is opened for operations such as adding water or cleaning, the sealing cover 14 remains connected to the water tank, thereby effectively avoiding the problem of loss of the sealing cover 14 and improving user convenience.

[0051] Preferably, a pressing portion 142 is fixed to one end of the extension portion 141 away from the sealing cover 14 , and the pivotal connection between the extension portion 141 and the water replenishing tank 1 is located between the pressing portion 142 and the sealing cover 14 .

[0052] It can be understood that since the pivot position is located between the pressing portion 142 and the sealing cover 14, the pivot position can be used as a leverage point. The water replenishment tank 1 is in a negative pressure state, which will increase the suction force between the sealing cover 14 and the water replenishment tank 1. It will be difficult to open the sealing cover 14 directly by hand. Due to the material or design reasons, the sealing cover 14 may be too smooth, which increases the difficulty of manual opening. Therefore, by providing the pressing portion 142, the user can use the lever principle to assist in opening the sealing cover 14.

[0053] In another embodiment, the upper end of the water replenishing tank 1 can also be fully opened, with one end pivotally connected to the water replenishing tank 1, or the sealing cover 14 and the water replenishing tank 1 can also be threadedly matched.

[0054] As a preferred Figure 1 and Figure 2 As shown, the outer edge of the water inlet 13 is provided with an upwardly protruding annular sealing portion 131, and the upper end surface of the annular sealing portion 131 is provided with a sealing ring groove 132. The lower end surface of the sealing cover 14 extends into the sealing ring groove 132 and is sealed and connected to the annular sealing portion 131.

[0055] It can be understood that the cooperation between the annular sealing portion 131 and the sealing ring groove 132 utilizes the pressure difference and friction between the physical contact surfaces to enhance the sealing effect. When the sealing cover 14 is pressed down and extends into the sealing ring groove 132, the annular sealing portion 131 will be squeezed by the sealing cover 14, thereby causing deformation, further increasing the contact area and contact tightness with the sealing cover 14. At the same time, the sealing ring groove 132 can guide the lower end face of the sealing cover 14 to move along a specific trajectory to ensure the accuracy and stability of the seal. The negative pressure state in the water tank helps to enhance the sealing effect at the water inlet 13. The increase in the sealing effect also ensures the stability of the negative pressure state in the water replenishment tank 1, forming a virtuous circle and improving the sealing performance at the water inlet 13.

[0056] The protruding annular sealing portion 131 may be a protruding annular sealing ring.

[0057] As a preferred Figure 1 and Figure 5 As shown, the heating water tank 21 and the water supply tank 22 are connected through a U-shaped tube 6, and the opening of the U-shaped tube 6 faces upward.

[0058] It is understandable that when water flows in the pipe, due to the effect of gravity, the liquid will naturally flow to a lower place, but in the U-shaped tube 6, the opening is facing upward, and the liquid in the U-shaped tube 6 can still maintain an effective water seal, preventing the water level in the heating water tank 21 from dropping to the water level requiring water replenishment. The liquid in the U-shaped tube can still maintain an effective water seal, preventing the hot steam in the heating water tank 21 from entering the water replenishment tank 22 through the U-shaped tube 6. By setting up the U-shaped tube 6, water acts as a water seal in the bent part, effectively isolating the communication between the heating water tank 21 and the water replenishment tank 1, and preventing water vapor from potentially damaging the water replenishment tank 22 or the water replenishment tank 1.

Claims

1. An electric steamer, characterized in that: It includes a water replenishment tank and a base, the base is provided with a heating water tank and a water replenishment tank that are interconnected, the water replenishment tank is connected to the atmosphere, the water replenishment tank is installed above the water replenishment tank, the lower end of the water replenishment tank is provided with a water outlet, the water outlet is provided with a shut-off valve, the water replenishment tank is provided with a lifting seat corresponding to the shut-off valve, the water replenishment tank is provided with a water inlet, and the water inlet is detachably connected to a sealing cover for sealing the water inlet.

2. An electric steamer according to claim 1, characterized in that: An extension portion is fixed on the sealing cover, and the extension portion is pivotally connected to the water replenishing tank.

3. An electric steamer according to claim 2, characterized in that: A pressing portion is fixed to one end of the extension portion away from the sealing cover, and a pivotal position between the extension portion and the water replenishing tank is arranged between the pressing portion and the sealing cover.

4. The electric steamer according to claim 1, wherein: An annular sealing portion is provided on the outer edge of the water inlet, a sealing ring groove is provided on the upper end surface of the annular sealing portion, and the lower end surface of the sealing cover extends into the sealing ring groove and is sealed and connected to the annular sealing portion.

5. The electric steamer according to claim 1, wherein: The bottom end of the water replenishment tank is supported on the bottom of the water replenishment trough, and a gap is provided between the trough wall of the water replenishment trough and the bottom side wall of the water replenishment tank to allow the water replenishment tank to move laterally in the water replenishment trough, and the shut-off valve is switched to an open or closed state by the lateral movement of the water replenishment tank.

6. The electric steamer according to claim 5, characterized in that: The shut-off valve includes a spring, a pressure plate and a contact rod for abutting the lifting seat, the contact rod is fixed to the pressure plate, the pressure plate is slidably connected to the water replenishing tank, and the spring is connected between the pressure plate and the water replenishing tank to make the pressure plate close to the water outlet and seal the water outlet.

7. The electric steamer according to claim 6, characterized in that: The lower end of the water replenishment tank is provided with a downwardly protruding support baffle, and the lower end of the support baffle abuts against the bottom surface of the water replenishment tank to form a water storage cavity between the bottom surface of the water replenishment tank and the water replenishment tank. A connecting cavity connected to the atmosphere is provided between the outer wall of the support baffle and the inner wall of the water replenishment tank. A notch is provided on the support baffle to connect the water storage cavity with the connecting cavity. When the connecting cavity is filled with liquid, the notch is located below the liquid level of the liquid.

8. The electric steamer according to claim 7, characterized in that: The lifting seat protrudes from the bottom surface of the water replenishing tank, and one end of the contact rod extends out of the water filling port. When the lifting seat abuts the contact rod, the abutting position of the two is in the water storage cavity.

9. The electric steamer according to claim 6, characterized in that: The contact rod is provided with a first conical surface, and the lifting seat is provided with a second conical surface. When the water replenishment tank is switched from the water filling position to the water replenishment position, the first conical surface contacts the second conical surface to make the contact rod move away from the bottom surface of the water replenishment tank.

10. The electric steamer according to claim 1, characterized in that: The heating water tank and the water supply tank are connected through a U-shaped tube, and the opening of the U-shaped tube faces upward.

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