Electric steamer

Abstract

The utility model provides an electric steamer which comprises a cooker body assembly and a steamer assembly, the cooker body assembly comprises a water storage tank, a heating base and a valve assembly, a space ring is arranged in the water storage tank and divides the water storage tank into a steam cavity located in the space ring and a water supplementing cavity located outside the space ring, a water supplementing hole is formed in the bottom wall of the steam cavity, and the steam cavity is communicated with the water supplementing hole. A flow guide groove is formed in the water supplementing cavity, located below the water supplementing hole and communicated with the water supplementing hole. The water storage tank is arranged on the heating base, the heating base comprises a heating disc, and the heating disc is located on the bottom wall of the water storage tank and opposite to the steam cavity; the valve assembly is arranged in the steam cavity and comprises a water blocking valve piece, and the water blocking valve piece is rotatably arranged on the water storage tank and used for opening and closing the water supplementing hole. The water retaining valve piece can control the water level in the steam cavity, small-water-amount evaporation is achieved, and meanwhile the situation that high-temperature water in the steam cavity flows into the water supplementing cavity, and the time for temperature rise and boiling of water in the steam cavity is prolonged can be avoided.

Description

Technical Field

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

[0002] Cooking appliances, such as electric steamers or electric stew pots that use steam to cook food, usually heat water in a water tank through a heating element at the bottom of the pot to generate steam, which then heats the inner pot or steamer to achieve the purpose of cooking food.

[0003] Since there is a lot of water in the water tank, it takes a long time to directly heat the water in the water tank and make it boil. In order to shorten the boiling time or quickly generate steam, a circular partition is usually provided in the water tank to divide the water tank into two areas inside and outside the partition. The area inside the partition can be quickly heated by the heating element to generate steam. The side wall of the partition is provided with a water replenishment hole. When the water in the area inside the partition is reduced, the water in the area outside the partition can be replenished through the water replenishment hole. Although the speed of steam generation can be increased by setting the partition. However, since the high-temperature water in the area inside the partition will also flow into the outside of the partition through the water replenishment hole, the water in the water replenishment area will gradually heat up, which will reduce the speed of the water in the area inside the partition to generate steam or boil quickly, resulting in a longer cooking time. Utility Model Content

[0004] In view of this, it is necessary to provide an electric steamer to address the above problems, in which the water level in the evaporation chamber can be controlled by setting a valve assembly, which is conducive to evaporating a small amount of water.

[0005] The utility model provides an electric steamer, comprising a pot body component and a steamer component arranged on the pot body component, the pot body component comprising: a water storage tank, a spacer ring is arranged in the water storage tank, the water storage tank is divided into a steam chamber located in the spacer ring and a water replenishment chamber located outside the spacer ring, the bottom wall of the steam chamber is provided with a water replenishment hole, the water replenishment chamber is provided with a guide groove, the guide groove is located below the water replenishment hole and is communicated with the water replenishment hole; a heating base, the water storage tank is arranged on the heating base, the heating base comprises a heating plate, the heating plate is located on the bottom wall of the water storage tank and is arranged opposite to the steam chamber; and a valve component is arranged in the steam chamber, the valve component comprises a water retaining valve plate, the water retaining valve plate is rotatably arranged on the water storage tank for opening and closing the water replenishment hole.

[0006] In the above-mentioned electric steamer, the heating plate heats the water in the steam chamber when working. After the water in the steam chamber evaporates, the water level in the steam chamber will continue to decrease, and the pressure of the water in the steam chamber on the water retaining valve plate will also continue to decrease. When the water retaining valve plate can be rotated to an open state relative to the water storage tank under the water pressure of the water in the water replenishment chamber, the water replenishment hole is opened, and the water in the water replenishment chamber can flow into the steam chamber through the guide groove and the water replenishment hole; the water level in the steam chamber gradually rises, and the pressure of the water in the steam chamber on the water retaining valve plate also continues to increase, and the water level in the water replenishment chamber gradually decreases, and the pressure of the water in the water replenishment chamber on the water retaining valve plate also continues to decrease. When the retaining valve plate is able to rotate to an open state relative to the water storage tank under the water pressure of the water in the water replenishment chamber, the water replenishment hole is opened, and the water in the water replenishment chamber can flow into the steam chamber through the guide groove and the water replenishment hole; the water level in the steam chamber gradually rises, and the pressure of the water in the steam chamber on the water retaining valve plate also continues to increase, and the water level in the water replenishment chamber gradually decreases, and the pressure of the water in the water replenishment chamber on the water retaining valve plate also continues to decrease. When the water valve plate can rotate to a closed state relative to the water tank under the action of its own gravity and the water pressure of the water in the steam chamber, the water supply hole is closed, and the water in the water supply chamber stops flowing into the steam chamber, and the cycle continues. Through the setting of the valve assembly, the water level in the evaporation chamber can be controlled, which is conducive to the evaporation of a small amount of water in the steam chamber, so as to achieve rapid boiling and generate steam. In addition, since the water-blocking valve plate can only rotate toward the steam chamber to open the water supply hole, it can prevent high-temperature water in the steam chamber from flowing into the water supply chamber through the water supply hole and the guide groove, and can also prevent the water in the water supply chamber from gradually heating up and prolonging the time for the water in the steam chamber to heat up and boil.

[0007] In one of the embodiments, the valve assembly further comprises a mounting seat fixedly mounted on the water storage tank, and the water retaining valve plate is rotatably mounted on the mounting seat.

[0008] In this arrangement, the mounting seat is used to support the water retaining valve plate and limit the position of the water retaining valve plate relative to the water tank, ensuring that the water retaining valve plate can completely cover the water supply hole when it is rotated to a closed state; and the mounting seat and the water retaining valve plate have a simple structure, which is convenient for production and assembly.

[0009] In one of the embodiments, the rotation angle α of the water retaining valve plate satisfies: 0≤α<90°, when α=0 degrees, the water supply hole is in a closed state, and when 0<α<90°, the water supply hole is in an open state.

[0010] With such arrangement, in the closed state, the water retaining valve plate can fit against the bottom wall of the water tank to ensure the sealing of the water filling hole; in the open state, the water retaining valve plate can fall toward the water filling hole and cover the water filling hole under the action of its own gravity, avoiding the situation where the water retaining valve plate cannot be rotated to the closed state due to excessive rotation angle.

[0011] In one of the embodiments, the mounting seat is provided with one of a hole or a boss, and one end of the water retaining valve plate is provided with the other of the two, and the boss is rotatably matched with the hole.

[0012] With such arrangement, the rotation of the water retaining valve plate relative to the mounting seat is achieved through the convex column and the hole, the structure is simple, and production and assembly are convenient.

[0013] In one of the embodiments, the valve assembly further includes a first sealing ring, which is sleeved on the wall of the water supply hole to be sealed and connected to the water retaining valve plate when the water retaining valve plate closes the water supply hole.

[0014] With such a configuration, the first sealing ring can improve the sealing between the water retaining valve plate and the bottom wall of the water tank, preventing water in the water supply hole from flowing into the steam chamber through the gap between the water retaining valve plate and the bottom wall of the water tank and causing the water level in the steam chamber to rise. It also prevents water in the water tank from flowing into the water supply chamber through the gap between the water retaining valve plate and the bottom wall of the water tank.

[0015] In one of the embodiments, the mass of the water retaining valve plate is M1, and M1≤2g.

[0016] With such arrangement, the water in the water replenishment chamber can easily push open the water retaining valve plate under the action of water pressure.

[0017] In one of the embodiments, the valve assembly further includes a counterweight portion disposed on the water retaining valve plate.

[0018] Such an arrangement enables the water in the steam chamber to be maintained at a lower water level and a smaller water volume, thereby improving the heating and boiling efficiency of the water in the steam chamber.

[0019] In one embodiment, the valve assembly further comprises a counterweight portion provided on the water retaining valve plate, the mass of the water retaining valve plate is M1, the mass of the counterweight portion is M2, and the flow area of ​​the water replenishing hole is S, then: 10Kg / m 2 ≤M / S≤20Kg / m 2 , where M=M1+M2, M2≥0g.

[0020] Such an arrangement can prevent the water level in the steam chamber from being too high and thus prolonging the water heating and boiling time, thereby ensuring the safety of the electric steamer.

[0021] In one of the embodiments, a mounting hole is provided in the central area of ​​the bottom wall of the water storage tank, the spacer is arranged around the periphery or edge of the mounting hole, and the heating plate is installed in the mounting hole.

[0022] Such an arrangement ensures that the heating plate only heats the water in the steam chamber, thereby improving the utilization rate of the heat generated by the heating plate, thereby improving the efficiency of heating and boiling the water in the steam chamber.

[0023] In one embodiment, the heating base further includes a second sealing ring, which is sleeved on the heating plate to seal the heating plate and the wall of the mounting hole.

[0024] With such arrangement, the second sealing ring can ensure the sealing between the water storage tank and the heating plate, and prevent the water in the water storage tank from flowing into the heating base through the gap between the water storage tank and the heating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 An exploded schematic diagram of a pot body assembly provided in one embodiment of the utility model;

[0026] Figure 2 for Figure 1 A schematic diagram of a partial three-dimensional structure of the middle pot body assembly;

[0027] Figure 3 for Figure 2 Schematic cross-sectional view of ;

[0028] Figure 4 for Figure 1 A three-dimensional cross-sectional schematic diagram of the middle pot body assembly;

[0029] Figure 5 for Figure 1 A schematic cross-sectional view of the middle pot body assembly;

[0030] Figure 6 for Figure 5 The enlarged schematic diagram of point A in the middle;

[0031] Figure 7 It is a three-dimensional cross-sectional schematic diagram of a pot body assembly according to another embodiment of the utility model;

[0032] Figure 8 for Figure 7 A schematic cross-sectional view of the middle pot body assembly;

[0033] Fig. 9 for Figure 8 The enlarged schematic diagram of point B in the middle;

[0034] Fig.10 for Figure 7 Schematic diagram of the three-dimensional structure of the middle water retaining valve plate and the counterweight part.

[0035] Figure numerals: 100, pot body assembly; 10, water storage tank; 11, spacer; 12, steam chamber; 13, water replenishment chamber; 14, guide groove; 15, water replenishment hole; 16, mounting hole; 20, heating base; 21, heating plate; 22, second sealing ring; 23, outer shell; 24, base; 30, valve assembly; 31, water retaining valve plate; 311, boss; 32, mounting seat; 321, hole; 322, opening; 33, first sealing ring; 331, sealing part; 332, fixing part; 34, counterweight part. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0039] Cooking utensils, such as electric steamers or electric stew pots that use steam to cook food, usually heat the water in the water tank through the heating element at the bottom of the pot, and then heat the inner pot or steamer with the steam after generating steam to achieve the purpose of cooking food. Since there is a lot of water in the water tank, it takes a long time to directly heat the water in the water tank and make it boil completely. In order to shorten the boiling time or quickly generate steam, a circular partition is usually provided in the water tank to divide the water tank into two areas inside and outside the partition. The area inside the partition can be quickly heated by the heating element to generate steam. The side wall of the partition is provided with a water replenishment hole. When the water in the area inside the partition is reduced, the water in the area outside the partition can be replenished through the water replenishment hole. Although the speed of steam generation can be increased by setting the partition. However, since the high-temperature water in the area inside the partition will also flow into the outside of the partition through the water replenishment hole, the water in the water replenishment area will gradually heat up, which will reduce the speed of steam generation or rapid boiling of the water in the area inside the partition, resulting in a longer cooking time.

[0040] In order to solve the above problems, Figures 1 to 10 As shown, the present application provides an electric steamer, which can make the water level in the evaporation area controllable by setting a valve assembly, which is conducive to evaporating a small amount of water and further achieving rapid boiling of water in the area within the partition.

[0041] like Figures 1 to 3As shown, specifically, the electric steamer includes a pot body assembly 100 and a steamer assembly (not shown) arranged on the pot body assembly 100, the pot body assembly 100 includes a water tank 10, a heating base 20 and a valve assembly 30, wherein: a spacer ring 11 is arranged in the water tank 10, dividing the water tank 10 into a steam chamber 12 located in the spacer ring 11 and a water replenishment chamber 13 located outside the spacer ring 11, a water replenishment hole 15 is arranged on the bottom wall of the steam chamber 12, a guide groove 14 is arranged in the water replenishment chamber 13, the guide groove 14 is located below the water replenishment hole 15 and is connected to the water replenishment hole 15; the water tank 10 is arranged on the heating base 20, the heating base 20 includes a heating plate 21, the heating plate 21 is located on the bottom wall of the water tank 10 and is arranged opposite to the steam chamber 12; the valve assembly 30 is arranged in the steam chamber 12, the valve assembly 30 includes a water retaining valve plate 31, and the water retaining valve plate 31 is rotatably arranged on the water tank 10 for opening and closing the water replenishment hole 15.

[0042] In the electric steamer provided by the utility model, since a spacer ring 11 is provided in the water storage tank 10, the heating plate 21 only heats the water in the steam chamber 12 during operation, and will not affect the water in the water replenishment chamber 13. The water in the water replenishment chamber 13 will not evaporate, and the space in the steam chamber 12 is small, and the amount of water is relatively small, so that the water in the steam chamber 12 can quickly heat up and boil and generate steam, thereby improving cooking efficiency. After the water in the steam chamber 12 evaporates, the water level in the steam chamber 12 will continue to decrease, and the pressure of the water in the steam chamber 12 on the water retaining valve plate 31 will also continue to decrease. When the water retaining valve plate 31 can be rotated to an open state relative to the water storage tank 10 under the water pressure of the water in the water replenishment chamber 13, the water replenishment hole 15 is opened, and the water in the water replenishment chamber 13 can flow into the steam chamber 12 through the guide groove 14 and the water replenishment hole 15; the water level in the steam chamber 12 gradually rises, and the pressure of the water in the steam chamber 12 on the water retaining valve plate 31 also continues to increase, and the water in the water replenishment chamber 13 The water level in the water replenishment chamber 13 gradually decreases, and the pressure of the water in the water replenishment chamber 13 on the water retaining valve plate 31 also continuously decreases. When the water retaining valve plate 31 can rotate to a closed state relative to the water storage tank 10 under the action of its own gravity and the water pressure of the water in the steam chamber 12, the water replenishment hole 15 is closed, and the water in the water replenishment chamber 13 stops flowing into the steam chamber 12. In this way, the water level in the steam chamber 12 is controllable through the setting of the water retaining valve plate 31 of the valve assembly 30, which is conducive to the evaporation of a small amount of water in the steam chamber 12, so as to achieve rapid boiling and generate steam in the steam chamber 12. In addition, the structure of the water retaining valve plate 31 is simple, and the opening and closing of the water retaining valve plate 31 are controlled by the water pressure difference between the water replenishment chamber 13 and the steam chamber 12 and the self-gravity of the water retaining valve plate 31. No additional driving element is required, and the production and use costs are low.

[0043] Furthermore, since the water-blocking valve plate 31 can only rotate toward the steam chamber 12 to open the water-supply hole 15, it is possible to prevent high-temperature water in the steam chamber 12 from flowing into the water-supply chamber 13 through the water-supply hole 15 and the guide groove 14, thereby preventing the water in the water-supply chamber 13 from gradually heating up and prolonging the time it takes for the water in the steam chamber 12 to heat up and boil, thereby ensuring that the water in the steam chamber 12 can further quickly heat up and boil to generate steam, thereby improving cooking efficiency.

[0044] The electric steamer can also be an electric stew pot, and the steamer assembly is configured as an inner pot placed in the water tank 10. Alternatively, the electric steamer can also be configured as other cooking utensils that heat the water in the water tank 10 by the heating plate 21 to generate steam, thereby heating the ingredients in the pot such as the steamer assembly.

[0045] like Figure 3 to Figure 4 As shown, the valve assembly 30 also includes a mounting seat 32 fixed to the water storage tank 10, and the water retaining valve plate 31 is rotatably arranged on the mounting seat 32. The mounting seat 32 is used to support the water retaining valve plate 31 and limit the position of the water retaining valve plate 31 relative to the water storage tank 10, so as to ensure that the water retaining valve plate 31 can completely cover the water replenishing hole 15 when it is rotated to the closed state, thereby ensuring that in the closed state, the water in the water replenishing chamber 13 will not flow into the steam chamber 12 through the guide groove 14 and the water replenishing hole 15. In addition, the mounting seat 32 can be convexly arranged on the bottom wall of the water storage tank 10, and no additional holes need to be opened on the bottom wall of the water storage tank 10, which is convenient for production and assembly.

[0046] like Figures 5 and 6 As shown, the rotation angle α of the water retaining valve plate 31 satisfies: 0≤α<90°. When α=0 degrees, the water replenishment hole 15 is in a closed state (such as Figure 6 When 0<α<90°, the water supply hole 15 is in an open state (as shown in the solid line position of the water retaining valve plate 31). Figure 6 The dotted line position of the water retaining valve plate 31 shown). The water retaining valve plate 31 can be rotated along the -X direction to an open state, and rotated along the +X direction to a closed state. Among them, the rotation angle α of the water retaining valve plate 31 can be any angle within the range of 0≤α<90°, such as 0°, 10°, 20°...80°, 85°, etc. In the closed state, the water retaining valve plate 31 is in a horizontal state and can fit with the bottom wall of the water storage tank 10 to ensure the sealing of the water replenishment hole 15, to prevent the water in the water replenishment hole 15 from flowing into the steam chamber 12 through the gap between the water retaining valve plate 31 and the bottom wall of the water storage tank 10, and also to prevent the water in the water storage tank 10 from flowing into the water replenishment chamber 13 through the gap between the water retaining valve plate 31 and the bottom wall of the water storage tank 10. In the open state, the rotation angle α of the water retaining valve plate 31 is less than 90°, so that the water retaining valve plate 31 can fall toward the water replenishing hole 15 and cover the water replenishing hole 15 under the action of its own gravity, avoiding the situation where the water retaining valve plate 31 cannot be rotated to the closed state due to excessive rotation angle.

[0047] like Figure 6 As shown, the mounting seat 32 is provided with one of the holes 321 or the bosses 311, and one end of the water retaining valve plate 31 is provided with the other of the two, and the bosses 311 are rotatably matched with the holes 321. The rotation of the water retaining valve plate 31 relative to the mounting seat 32 is achieved by the bosses 311 and the holes 321, and the structure is simple and convenient for production and assembly. Among them, the number of the mounting seats 32 can be one or two, and the bosses 311 and the mounting seats 32 are correspondingly arranged. The two mounting seats 32 are respectively arranged on both sides of the water retaining valve plate 31 to ensure the stability and balance of the water retaining valve plate 31 when rotating relative to the mounting seat 32, and also to prevent the water retaining valve plate 31 from sliding away from the mounting seat 32 along the axial direction of the bosses 311.

[0048] In the illustrated embodiment, the mounting seat 32 is provided with a hole 321 and an opening 322 connected to the upper side of the hole 321, the opening 322 is opened along the radial direction of the hole 321, a boss 311 is provided at one end of the water retaining valve plate 31, the inner diameter of the hole 321 is equal to or slightly larger than the diameter of the boss 311, so as to ensure that the boss 311 can rotate normally in the hole 321, the inner diameter of the opening 322 is slightly smaller than the diameter of the boss 311, and the user can insert the boss 311 into the hole 321 from the top of the mounting seat 32 through the opening 322, and the boss 311 can also be prevented from accidentally detaching from the mounting seat 32. In another embodiment, the opening 322 can also be opened along the axial direction of the hole 321, and the user can insert the boss 311 into the hole 321 from the side of the mounting seat 32 through the opening 322.

[0049] like Figure 6 As shown, the valve assembly 30 also includes a first sealing ring 33, which is sleeved on the wall of the water replenishment hole 15 to be sealed and connected with the water retaining valve disc 31 when the water retaining valve disc 31 closes the water replenishment hole 15. In the closed state, the water retaining valve disc 31 presses the first sealing ring 33 toward one side of the water replenishment hole 15, and the first sealing ring 33 can improve the sealing between the water retaining valve disc 31 and the bottom wall of the water storage tank 10, so as to prevent the water in the water replenishment hole 15 from flowing into the steam chamber 12 through the gap between the water retaining valve disc 31 and the bottom wall of the water storage tank 10, thereby causing the water level in the steam chamber 12 to rise, and also prevent the water in the water storage tank 10 from flowing into the water replenishment chamber 13 through the gap between the water retaining valve disc 31 and the bottom wall of the water storage tank 10, thereby preventing the water in the steam chamber 12 from heating up and boiling for a longer time.

[0050] The first sealing ring 33 includes a sealing portion 331 and a fixing portion 332 . The fixing portion 332 is sleeved on the wall of the water replenishment hole 15 . In the closed state, the water retaining valve plate 31 and the bottom wall of the water storage tank 10 squeeze the sealing portion 331 .

[0051] Since the rotation of the water retaining valve plate 31 is related to factors such as the pressure of the water in the water replenishment chamber 13 on the water retaining valve plate 31, the pressure of the water in the steam chamber 12 on the water retaining valve plate 31, and the mass of the water retaining valve plate 31, the mass of the water retaining valve plate 31 is preferably M1, and M1≤2g. Among them, the mass M1 of the water retaining valve plate 31 can be any value that satisfies M1≤2g, such as 0.5g, 1g, 1.5g, 2g, etc. When the mass M1 of the water retaining valve plate 31 meets the above requirements, the water in the water replenishment chamber 13 can easily push open the water retaining valve plate 31 under the action of water pressure, avoiding the water level in the steam chamber 12 being too low, and the water in the water replenishment chamber 13 cannot flow into the steam chamber 12 through the guide groove 14 and the water replenishment hole 15, resulting in dry burning and other phenomena, so as to ensure the safety of the electric steamer.

[0052] Moreover, under the action of the gravity of the water-blocking valve plate 31 itself, the water level in the water-supply chamber 13 needs to be higher than the water level in the water tank 10, that is, there must be a certain water level difference between the water-supply chamber 13 and the water tank 10, so that the water-blocking valve plate 31 can rotate to an open state relative to the water tank 10 under the action of the water pressure in the water-supply chamber 13.

[0053] like Figures 7 to 10 As shown, the valve assembly 30 also includes a counterweight 34 disposed on the water retaining valve plate 31. The mass of the water retaining valve plate 31 is M1, the mass of the counterweight 34 is M2, and the total mass of the water retaining valve plate 31 and the counterweight 34 is M, M=M1+M2, M2≥0g. When the counterweight 34 is not provided, M2=0g, M=M1, and a material with a larger density can be selected to make the water retaining valve plate, such as a metal material. After the counterweight 34 is provided, the total mass M of the water retaining valve plate 31 and the counterweight 34 increases. At this time, a larger water level difference is required between the water replenishing chamber 13 and the water storage tank 10, so that the water retaining valve plate 31 can be rotated to an open state relative to the water storage tank 10 under the water pressure of the water in the water replenishing chamber 13. In this way, the water in the steam chamber 12 can be maintained at a lower water level, and the amount of water is less, so that the heating and boiling efficiency of the water in the steam chamber 12 can be further improved.

[0054] Preferably, the flow area of ​​the water replenishment hole 15 is S, which satisfies: 10Kg / m 2 ≤M / S≤20Kg / m 2 The ratio M / S of the total mass M of the water retaining valve plate 31 and the counterweight 34 and the flow area S of the water replenishment hole 15 can be 10Kg / m 2 , 11Kg / m 2 , 12Kg / m 2 ……19Kg / m 2 , 20Kg / m 2 Equivalent to 10Kg / m 2 Up to 20Kg / m 2At this time, the water level in the water replenishment chamber 13 needs to be 10mm to 20mm higher than the water level in the steam chamber 12, so that the water in the water replenishment chamber 13 can push open the water retaining valve plate 31 under the action of water pressure, thereby preventing the water level in the steam chamber 12 from being too high and prolonging the water heating and boiling time, and also preventing the water level in the steam chamber 12 from being too low and causing the electric steamer to easily dry-boil, thereby ensuring the safety of the electric steamer.

[0055] The cross section of the water replenishment hole 15 can be a regular or irregular structure such as a circle, an ellipse, a square, etc. When the first sealing ring 33 includes a fixing portion 332 sleeved on the wall of the water replenishment hole 15, the shape and size of the fixing portion 332 are set corresponding to the water replenishment hole 15, and the actual flow area S of the water replenishment hole 15 is the area enclosed by the inner circle of the first sealing ring 33.

[0056] like Figures 9 and 10 As shown, in the illustrated embodiment, the counterweight portion 34 is protruded from a side of the water retaining valve plate 31 away from the water replenishing hole 15, and in the covered state, the counterweight portion 34 is located directly above the water replenishing hole 15 to ensure that the water retaining valve plate 31 can be pressed and covered on the water replenishing hole 15 under the action of gravity, thereby improving the sealing of the water replenishing hole 15.

[0057] Of course, in other embodiments, the counterweight portion 34 may also be protruding from other positions of the water retaining valve plate 31, or the counterweight portion 34 and the water retaining valve plate 31 may be arranged in a stacked manner, as long as the counterweight portion 34 does not affect the sealing between the water retaining valve plate 31 and the bottom wall of the water storage tank 10 in the covered state; alternatively, no additional counterweight portion 34 may be provided, and the mass of the water retaining valve plate 31 may be changed by changing the material of the water retaining valve plate 31, that is, the water retaining valve plate 31 itself is the counterweight portion 34, for example, the water retaining valve plate 31 is set to be made of metal, etc., as long as the mass M of the water retaining valve plate 31 and the counterweight portion 34 as a whole can be changed, the utility model does not make any specific restrictions here.

[0058] like Figures 2 to 4 As shown, a mounting hole 16 is provided in the central area of ​​the bottom wall of the water storage tank 10, a spacer 11 is arranged around the periphery or edge of the mounting hole 16, and a heating plate 21 is installed in the mounting hole 16. The spacer 11 is arranged around the periphery of the heating plate 21 to ensure that the heating plate 21 only heats the water in the steam chamber 12, thereby improving the utilization rate of the heat generated by the heating plate 21, and further improving the efficiency of heating and boiling the water in the steam chamber 12.

[0059] like Figure 1 and Figure 4As shown, the heating base 20 further includes a second sealing ring 22, which is sleeved on the heating plate 21 to seal the heating plate 21 and the wall of the mounting hole 16. The second sealing ring 22 can ensure the sealing between the water storage tank 10 and the heating plate 21, and prevent the water in the water storage tank 10 from flowing into the heating base 20 through the gap between the water storage tank 10 and the heating plate 21, thereby preventing other components in the heating base 20 from being damaged.

[0060] like Figure 1 and Figure 4 As shown, the heating base 20 includes a detachably connected housing 23 and a base 24 , so that the user can install the heating plate 21 , the second sealing ring 22 and other components in the heating base 20 .

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An electric steamer, comprising a pot body assembly (100) and a steamer assembly arranged on the pot body assembly (100), characterized in that: The pot body assembly (100) comprises: A water storage tank (10), wherein a spacer (11) is provided in the water storage tank (10), and the water storage tank (10) is divided into a steam chamber (12) located in the spacer (11) and a water replenishment chamber (13) located outside the spacer (11); a water replenishment hole (15) is provided on the bottom wall of the steam chamber (12); a flow guide groove (14) is provided in the water replenishment chamber (13); the flow guide groove (14) is located below the water replenishment hole (15) and is in communication with the water replenishment hole (15); a heating base (20), the water storage tank (10) being arranged on the heating base (20), the heating base (20) comprising a heating plate (21), the heating plate (21) being located on the bottom wall of the water storage tank (10) and being arranged opposite to the steam chamber (12); and A valve assembly (30) is disposed in the steam chamber (12). The valve assembly (30) comprises a water-blocking valve plate (31). The water-blocking valve plate (31) is rotatably disposed on the water storage tank (10) and is used to open and close the water replenishment hole (15).

2. The electric steamer according to claim 1, characterized in that: The valve assembly (30) further comprises a mounting seat (32) fixedly mounted on the water storage tank (10), and the water retaining valve plate (31) is rotatably mounted on the mounting seat (32).

3. The electric steamer according to claim 2, characterized in that: The rotation angle α of the water retaining valve plate (31) satisfies: 0≤α<90°, when α=0 degrees, the water replenishment hole (15) is in a closed state, and when 0<α<90°, the water replenishment hole (15) is in an open state.

4. The electric steamer according to claim 2, characterized in that: The mounting seat (32) is provided with one of a hole (321) and a convex column (311), and one end of the water retaining valve plate (31) is provided with the other of the two, and the convex column (311) is rotatably matched with the hole (321).

5. The electric steamer according to claim 1, characterized in that: The valve assembly (30) further comprises a first sealing ring (33), which is sleeved on the wall of the water supply hole (15) so as to be sealed and connected to the water retaining valve plate (31) when the water retaining valve plate (31) closes the water supply hole (15).

6. The electric steamer according to claim 1, characterized in that: The mass of the water retaining valve plate (31) is M1, and M1≤2g.

7. The electric steamer according to claim 1, characterized in that: The valve assembly (30) further comprises a counterweight portion (34) arranged on the water-blocking valve plate (31).

8. The electric steamer according to claim 1, characterized in that: The valve assembly (30) further comprises a counterweight (34) arranged on the water retaining valve plate (31), the mass of the water retaining valve plate (31) is M1, the mass of the counterweight (34) is M2, and the flow area of ​​the water replenishing hole (15) is S, which satisfies: 10Kg / m 2 ≤M / S≤20Kg / m 2 , where M=M1+M2, M2≥0g.

9. The electric steamer according to claim 1, characterized in that: A mounting hole (16) is provided in the central area of ​​the bottom wall of the water storage tank (10), the spacer (11) is arranged around the periphery or edge of the mounting hole (16), and the heating plate (21) is installed in the mounting hole (16).

10. The electric steamer according to claim 9, characterized in that: The heating base (20) further comprises a second sealing ring (22), wherein the second sealing ring (22) is sleeved on the heating plate (21) to seal the heating plate (21) and the wall of the mounting hole (16).

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