Cookware with improved steam feeding structure

Abstract

A cooker with an improved steam feeding structure is characterized in that a first silicone module is arranged on the outer side of an inner pot, at least one first steam channel is arranged on the first silicone module, a first channel outlet connected to an air inlet of the inner pot is provided at the top of the first steam channel, a surrounding wall portion constituting the first channel outlet is in a bow-like shape and elastically adheres to the wall of the inner pot and is connected to the air inlet of the inner pot; an outer plate is arranged on the outer side of the first silicone module and is snap-fittedly connected thereto, a side plate inlet is arranged on the outer plate, and a combined steam channel connecting the side plate inlet and the first steam channel is formed between the outer plate and the first silicone module; a one-way valve plate is arranged in the first steam channel, the one-way valve plate is used to prevent the fluid entering the first steam channel from the first channel outlet from flowing to the combined steam channel, and the wall of the inner pot, the first silicone module and the outer plate are detachably connected together in an inside-outside combination.

Description

Technical Field

[0001] The present invention relates to the technical field related to cooking appliances, and in particular to an appliance that uses external steam as a heat source for cooking and has a steam feeding device with an improved structure. Background Art

[0002] Electric rice cookers and electric pressure cookers are common heating-type food cooking appliances. Generally, a heating element is arranged at the bottom of an inner pot of the cooking appliance. The heating element heats the inner pot to increase the temperature of the inner pot, so that the food placed in the inner pot can be heated and cooked. However, the heat of this heating cooking method is mainly concentrated at the bottom of the inner pot, so that the food in the inner pot is heated unevenly, affecting the cooking effect of the food.

[0003] In addition, people have also invented a new steam cooking utensil, such as the Chinese utility model patent with patent announcement number CN208598142U and the name "A pure steam heated cooking pot", which discloses a pure steam heated cooking pot, including a pot body, a pot cover covering the pot body, and a frame body for placing the pot body, the side of the frame body is provided with an opening for taking the pot body out, a steam generator and an air outlet are provided in the frame body, and the pot cover is provided with an air inlet corresponding to the air outlet. The steam generated by the steam generator enters the pot body through the air outlet and the air inlet to cook the food. This cooking utensil uses steam heating, and the food placed in the pot body is heated more evenly during cooking. However, the pot body of this cooking utensil adopts a horizontal placement method, while the air inlet and the air outlet of the pot cover are arranged vertically, which brings inconvenience to the placement of the pot body.

[0004] To this end, in order to solve the problem of inconsistency between the direction of taking out and placing the pot body and the direction of steam input, a Chinese utility model patent with patent announcement number CN210169730U and name "A steam heating cooking appliance" discloses a steam heating cooking appliance, which includes a pot body, a pot cover covering the pot body and a body for placing the pot body, a steam generating device is provided on the body, the body includes a base, a steam outlet is provided on the base, a steam channel is provided at the bottom of the pot body, the pot body is placed on the base, and the steam channel is connected to the steam outlet through a sealing member, the sealing member can be connected to the pot body or to the base, a one-way valve is provided in the sealing member, the steam generated by the steam generating device pushes open the one-way valve through the steam outlet, and enters the pot body through the steam channel to cook food. Summary of the invention

[0005] However, when we analyze the technical solution of the patent announcement number CN210169730U, we can clearly find that it only solves the problem of steam connection between the pot body and the base, but does not solve the problem of using the pot body when it is not in a cooking working state. According to its solution, the sealing member can be connected to the pot body or the base. In this way, when the pot body is lifted away from the base, if the sealing ring is connected to the base, the pot body will lose the protection of the one-way valve, and the liquid juice in the pot body will flow out directly from the steam outlet of the pot body. If the sealing ring is set on the pot body, the sealing ring cannot be placed directly on the table to support the pot body, otherwise it will damage the one-way valve set in it. In this way, the pot body will have an embarrassing problem of having no support, and it must be placed on its side at least, and placing it on its side will cause the food in the pot body to flow out. For this reason, although this design structure optimizes the problem of pot body placement and steam connection, it actually needs to be greatly improved.

[0006] In order to solve the above technical problems, the present invention proposes a cooker with an improved steam feeding structure, the cooker includes an inner pot, the wall of the inner pot is provided with an inner pot air inlet for introducing steam; the character is that a first silicone module is provided on the outer side of the inner pot, the first silicone module is provided with at least one first steam channel, the top of the first steam channel has a first channel outlet connected to the inner pot air inlet, the surrounding wall body portion constituting the first channel outlet is in a bow-back shape and elastically adheres to the wall of the inner pot and is connected to the inner pot air inlet; an outer plate is provided on the outer side of the first silicone module and is snap-fittedly connected thereto, a side plate inlet is provided on the outer plate, and a combined steam channel connecting the side plate inlet and the first steam channel is formed between the outer plate and the first silicone module; a one-way valve is provided in the first steam channel, the one-way valve is used to prevent the fluid entering the first steam channel from the first channel outlet from flowing to the combined steam channel, and the wall of the inner pot, the first silicone module and the outer plate are detachably connected together inside and outside.

[0007] Among them, the inner pot air inlet is a channel space arranged on the inner pot wall, for example, the side wall or bottom wall 11 of the inner pot, and the inner pot air inlet connects the internal space of the inner pot and the space outside the wall of the inner pot. The inner pot air inlet is used to allow steam to enter. Of course, under the premise that the inner pot air inlet is not blocked, the liquid in the inner pot can also flow to the outside of the inner pot wall through the inner pot air inlet. In the present invention, in order to reduce the leakage of food in the inner pot from the inner pot air inlet to the space outside the inner pot wall, the aperture size of a single inner pot air inlet cannot be too large, and in order to ensure the amount of steam intake, a plurality of inner pot air inlet holes can be concentratedly arranged to form an air inlet group.

[0008] Among them, the first steam channel refers to a channel space arranged on the first silicone module for connecting the inner pot air inlet hole and the combined steam channel, and steam can enter the internal space of the inner pot through the first steam channel and the inner pot air inlet hole.

[0009] Among them, the first channel outlet refers to the opening at one end of the first steam channel, and the surrounding wall portion constituting the first channel outlet is in a bow-shaped elastic back against the wall of the inner pot, so that the first steam channel and the wall of the inner pot form a detachable sealed connection, and the inner pot air inlet is arranged on the inner pot wall circled by the first channel outlet, so that the first channel outlet is connected to the inner pot air inlet.

[0010] The outer plate refers to a rigid component that is arranged on the outside of the first silicone module and can be buckled with the first silicone module. The outer plate is used to connect and press the first silicone module. A side plate inlet is also provided on the outer plate.

[0011] Among them, the combined steam channel refers to a channel space for conveying steam formed by the combination of the outer plate and the first silicone module. Since the combined steam channel connects the side plate inlet and the first steam channel, the steam can be conveyed to the first steam channel through the side plate inlet and the combined steam channel.

[0012] In this scheme, a plurality of inner pot air inlet holes, for example 2, 3, 4 or even 5, can be set on the inner pot wall. Correspondingly, a plurality of steam first channels corresponding to the inner pot air inlet holes are also set one-to-one on the first silica gel module, and all of these plurality of steam first channels are centrally connected to the combined steam channel.

[0013] Among them, the one-way valve plate refers to a movable blocking structure arranged in the first steam channel for opening or blocking the first steam channel, and the one-way valve plate includes at least the following two action forms. The first form is that when steam with a certain pressure enters the first steam channel through the side plate inlet and the combined steam channel and pushes the one-way valve plate to move and open the first steam channel, the steam is allowed to enter the inner pot through the first steam channel and the inner pot air inlet hole; the second form is that when the combined steam channel does not transport steam to the first steam channel, the one-way valve plate can block the first steam channel, thereby preventing the fluid entering the first steam channel from the outlet of the first channel from flowing into the combined steam channel.

[0014] In the above solution, the outer plate and the inner pot may be detachably buckled, screwed, etc. The outer plate may be in a plate shape or a basin shape to accommodate at least a portion of the first silica gel module.

[0015] According to the above technical scheme, compared with the prior art, especially compared with the technical scheme with patent announcement number CN210169730U, the beneficial technical effects of the present invention are: first, by interlocking the first flexible silicone module with the outer plate with a certain rigidity, it can not only seal and form the combined steam channel, but also facilitate the disassembly and cleaning of the outer plate and the first silicone module; second, because the wall of the inner pot, the first silicone module, and the outer plate are detachably connected together inside and outside, when the inner pot is lifted, the outer plate moves with the inner pot and will not separate, and when the first silicone module and the outer plate are arranged under the inner pot. The outer plate can be used to support the inner pot and ensure that the inner pot can be placed directly on the table. The one-way valve in the first silicone module will not be affected, and the problem of liquid leakage from the inner pot will not occur. At most, only a small amount of liquid will remain in the first steam channel located in front of the one-way valve plate, which effectively solves the problem of liquid leakage from the bottom of the inner pot caused by vertical placement of the inner pot and steam input from the bottom of the inner pot; thirdly, since the first silicone module is snap-fitted and connected to the outer plate, it is ensured that the outer plate and the first silicone module can be easily disassembled and cleaned; fourthly, multiple first steam channels can be connected to the combined steam channel, so that multiple inner pot air inlet holes can be set at the bottom of the inner pot at the same time without causing a complicated structure or increasing the trouble of disassembling and cleaning the outer plate and the first silicone module.

[0016] A further technical solution may be that the one-way valve plate includes a transverse portion and a vertical portion that are connected to each other, a platform portion is provided on the inner wall of the first steam channel, the transverse portion remains overlapped on the platform portion, the vertical portion extends downward in the first steam channel, and a return spring is provided between the vertical portion and the wall of the first steam channel, the return spring is used to pull the transverse portion to remain overlapped on the platform portion.

[0017] Wherein, the transverse portion refers to the main component on the one-way valve plate for blocking the first steam channel, and when viewed along the axial direction of the first steam channel, the projected area of ​​the transverse portion is larger than the diameter of the first steam channel at the platform portion; wherein, the platform portion is a sealing structure arranged on the inner wall of the first steam channel, and the platform portion is used to cooperate with one side surface of the transverse portion to form a sealing structure; wherein, the return spring is arranged in the first steam channel, one end of which is connected to the vertical portion, and the other end is connected to the wall of the first steam channel, and the return spring is used to pull the transverse portion to keep overlapping the platform portion, thereby blocking the first steam channel; in this way, by setting the return spring, it is possible to well achieve that the one-way valve plate can maintain the blocking of the first steam channel in a natural state or when the input steam pressure is relatively small.

[0018] A further technical solution may also include a base, wherein the base includes a bottom plate and a second silicone module installed on the bottom plate, the second silicone module has a second steam channel, the top of the second steam channel has a second channel outlet connected to the side plate inlet, the surrounding wall portion constituting the second channel outlet is arched, and when the inner pot is close to the bottom plate, the surrounding wall portion can elastically stick to the outer plate and connect to the side plate inlet.

[0019] Wherein, the bottom plate is an independent component arranged on the outside of the outer plate. When the base is located below the outer plate, the inner pot and the outer plate are placed on the base. The second steam channel is a channel space arranged on the second silicone module for conveying steam. In addition, the surrounding wall of the second steam channel is in the shape of a soft arch, which allows the second steam channel to be detachably sealed with the side plate inlet on the outer plate; in this way, the second silicone module can be well connected to the outer plate by back-to-back bonding. Generally, the greater the pressure, the better the back-to-back sealing effect, and effectively reduces the leakage of steam during the process of conveying steam from the second steam channel to the combined steam channel. In a specific implementation structure, the base can be a part of the steam generating device of the cookware.

[0020] A further technical solution may be that the base also includes a joint piece arranged on the bottom plate, and the joint piece is fastened to the bottom plate by screws; an avoidance hole is arranged on the bottom plate, and the middle wall of the second silicone module is embedded in the avoidance hole; the joint piece includes mutually connected transverse walls and vertical pipe joints, and a joint hole is arranged in the vertical pipe joint; an extended soft skirt is also arranged below the middle wall of the second silicone module, and the extended soft skirt is pressed between the bottom plate and the transverse wall of the joint piece, and the joint hole is connected to the second steam channel.

[0021] Among them, the avoidance hole on the bottom plate can be used to connect the middle wall of the second silicone module, and the extended soft skirt arranged below the middle wall of the second silicone module can effectively prevent the second silicone module from escaping from the avoidance hole; wherein, the connecting piece is another component arranged below the bottom plate for connecting the bottom plate and the second silicone module, and the transverse wall on the connecting piece is connected to the outer side wall while also pressing the extended soft skirt on the second silicone module against the outer side wall; in this way, the upper and lower directions of the second silicone module are well defined, and then the steam can be well delivered to the second steam channel through the connecting hole on the connecting piece.

[0022] When the inner pot is lifted, the inner pot and the outer plate are integrated and separated from the second silica gel module and the bottom plate. When the inner pot is put down, the wall around the second channel outlet of the second silica gel module is attached to the wall around the inlet of the side plate.

[0023] A further technical solution may be that an annular wall is provided on the wall of the inner pot, and at least part of the first silicone module is accommodated in the space surrounded by the annular wall. The first silicone module and the wall of the inner pot are connected back to back, that is, the inner pot wall forms a direction limit for the first silicone module, and the annular wall provided on the inner pot wall is used to limit the first silicone module in another direction, so that the first channel outlet of the first silicone module and the inner pot air inlet provided on the inner pot wall can be stably and accurately connected, effectively reducing the possibility of liquid leakage.

[0024] A further technical solution may be that at least part of the outer plate is located in the space surrounded by the annular wall. Since the outer plate is a component with good rigidity and is buckled with the first silicone module, by using the annular wall to limit the position of the outer plate, the connection stability between the first channel outlet and the inner pot air inlet can also be effectively ensured, thereby reducing liquid leakage. In this improved structure, the inner pot can also be supported by the annular wall, or the annular wall and the outer plate can jointly support the inner pot.

[0025] In order to improve the stability of the inner pot, the inner pot is placed above the bottom plate, and the bottom plate extends out of the space surrounded by the annular wall and continues to support the inner pot wall outside the space surrounded by the annular wall. In addition to being used to connect and fix the second silicone module, the bottom plate is also used to support the inner pot. The bottom plate and the supporting part of the inner pot are arranged outside the space surrounded by the annular wall, which is conducive to making the supporting point close to the outer edge of the bottom of the inner pot, so that the inner pot can be placed more stably.

[0026] In order to reduce the leakage of food in the inner pot from the inner pot air inlet, the inner pot air inlet is composed of a plurality of pinhole-shaped small holes. The inner pot air inlet is configured as a pinhole-shaped small hole, which can allow steam to enter and reduce the leakage of food in the pot or the jamming of the inner pot air inlet. The inner pot air inlet is configured as a small hole group, which is conducive to increasing the input of steam and improving cooking efficiency.

[0027] In order to ensure that steam can be input into the inner pot, a protrusion or a concave pit is provided in the gathering area of ​​the small holes, and the small holes are arranged on the protrusion or the concave pit. In this way, the food pressed in the gathering area of ​​the small holes can be effectively lifted up by the protrusion or the concave pit, reducing the possibility of the small holes being blocked.

[0028] In order to improve the heat insulation and heat preservation effect of the cookware, the inner pot is a sandwich structure. The sandwich structure means that the inner pot has a multi-layer pot body, and the annular wall can be a part of one layer of the outer pot; further, gaps can be left between the layers of the inner pot, and the use of air layers or filling of heat insulation materials in the gaps are conducive to improving the heat insulation and heat preservation effect of the inner pot.

[0029] Since the present invention has the above characteristics and advantages, it can be applied to cookers that require steam feed control. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the front cross-sectional structure of a cooker with an improved steam feeding structure to which the technical solution of the present invention is applied;

[0031] Figure 2 yes Figure 1 A schematic diagram of the local enlarged structure of the M portion;

[0032] Figure 3 yes Figure 1 A schematic diagram of the local enlarged structure of the K part;

[0033] Figure 4 is a schematic cross-sectional structure diagram of the inner pot, showing the structure when the small holes are arranged on the side wall of the raised structure;

[0034] Figure 5 It is a schematic diagram of the structure of the inner pot when viewed from above, showing the structure when the small holes are arranged on the side wall of the raised structure. DETAILED DESCRIPTION

[0035] The structure of the cooker with improved steam feeding structure applying the technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0036] The present invention provides a cooker with an improved steam feeding structure, such as Figure 1-Figure 4 As shown, the cookware includes a base and an inner pot 1 placed on the base, and the base is used to support the inner pot 1 in the up and down directions. The inner pot 1 is a sandwich structure including an inner pot and an outer shell, and a gap is formed between them. The inner pot 1 has an inner pot space 10, and the inner pot space 10 is used to place food. In order to input hot steam into the inner pot 1, an inner pot air inlet 12 for introducing steam is provided on the bottom wall 11 of the inner pot 1. The inner pot air inlet 12 is a channel space provided on the bottom wall 11 of the inner pot 1. The inner pot air inlet 12 connects the inner pot space 10 of the inner pot 1 and the space below the bottom wall 11 of the inner pot 1. High-temperature steam enters the inner pot space 10 of the inner pot 1 through the inner pot air inlet 12. Since the inner pot air inlet 12 is arranged on the wall of the inner pot 1, it is inevitable that the liquid in the inner pot 1 can also flow out from the inner pot air inlet 12. In order to reduce the leakage of small particles of food in the inner pot 1 from the inner pot air inlet 12 along with the fluid, each inner pot air inlet 12 is composed of a plurality of pinhole-shaped small holes 121. In this embodiment, the aperture of a single small hole 121 is set to be no greater than 2 mm. The small hole 121 designed in this way can well reduce the probability of small particles of food (such as rice grains) leaking from the inner pot air inlet 12; further, by setting a hole group composed of a plurality of small holes 121, it is well ensured that a sufficient amount of high-temperature steam enters the pot space 10, thereby improving the cooking efficiency.

[0037] Further, such as Figure 1 and Figure 2As shown, a first elastic silicone module 2 is provided below the bottom wall 11 of the inner pot 1, and a first steam channel 20 is provided on the first silicone module 2, wherein the first steam channel 20 refers to a channel space provided on the first silicone module 2 for conveying steam, and steam can enter the internal space of the inner pot 1 through the first steam channel 20 and the inner pot air inlet 12. In this embodiment, two or three inner pot air inlet holes 12 are provided on the bottom wall 11 of the inner pot 1, and correspondingly, two or three parallel arranged first steam channels 20 are also provided on the first silicone module 2. The purpose of providing two first steam channels 20 is to increase the steam input and thus improve the heating efficiency. Of course, the number of the inner pot air inlet holes 12 and the first steam channel 20 can be appropriately set according to the actual size of the actual pot. Since the wall structures constituting the first steam channels 20 are the same, the following is an explanation of the wall structure of one of the first steam channels 20. The top of the first steam channel 20 is provided with a first channel outlet 21, and the surrounding wall 22 constituting the first channel outlet 21 is arched and elastically adheres to the bottom wall 11 of the inner pot 1 and is connected to the inner pot air inlet 12, so that the greater the air pressure, the more reliable the sealing; in order to allow the first steam channel 20 to be connected to the inner pot air inlet 12, the surrounding wall 22 of the first channel outlet 21 is arranged around the inner pot air inlet 12, so that the first silica gel module 2 forms an elastically compressed detachable sealing connection with the bottom wall 11 of the inner pot through the surrounding wall 22 of the first channel outlet 21, and the greater the air pressure, the better the sealing effect automatically formed, and the first channel outlet 21 is connected to the inner pot air inlet 12, which greatly improves the reliability of steam transportation from the first steam channel 20 to the inner pot air inlet 12.

[0038] In order to further improve the reliability of steam delivery, an outer plate 3 is provided on the outer side of the first silica gel module 2 and is snap-fitted with the outer plate 3. The outer plate 3 is in the shape of a plate. The bottom wall 11 of the inner pot, the first silica gel module 2 and the outer plate 3 are detachably connected together up and down by snap-fitting or screws. In this way, the first silica gel module 2 and the outer plate 3 are actually combined into a combined module and can be installed on the inner pot 1 after they are combined, so as to be combined with the inner pot 1 into a combined pot body that can be used separately. The combined pot body can be used for cooking, can be lifted up and moved freely without leakage, and can also be directly placed in water for cleaning.

[0039] The outer plate 3 is also provided with a side plate inlet 31. The outer plate 3 is a rigid component arranged under the first silicone module 2 and capable of being combined with the first silicone module 2. The outer plate 3 is not only used to connect and press the first silicone module 2, but also, after the outer plate 3 and the first silicone module 2 are combined with each other, a combined steam channel 30 connecting the side plate inlet 31 and the first steam channel 20 is formed therebetween. In this embodiment, the first silicone module 2 also includes a first channel inlet 23 arranged at the bottom of the first steam channel 20 and an inlet connecting wall 24 constituting the first channel inlet 23. The inlet connecting wall 24 is connected to the outer plate 3 and forms the combined steam channel 30. In order to achieve a connection with a certain strength between the inlet connecting wall 24 and the outer plate 3, two specific implementations are listed below for illustration: the first implementation is to press the inlet connecting wall 24 of the first silicone module 2 against the bottom wall 11 of the inner pot 1 through the outer plate 3, so that a connection structure with a good sealing effect is formed between the first silicone module 2 and the outer plate 3; the second implementation is as follows. Figure 1 and Figure 2 As shown, a pressure plate 4 is further provided between the bottom wall 11 of the inner pot 1 and the first silicone module 2, and the inlet connecting wall 24 of the first silicone module 2 is clamped by the outer plate 3 and the pressure plate 4, so that a connection structure with a good sealing effect is formed between the first silicone module 2 and the outer plate 3, effectively reducing the leakage of steam from the combined steam channel 30.

[0040] Furthermore, in order to reduce the leakage of the fluid in the inner pot 1 from the first steam channel 20, a one-way valve plate 5 is provided in the first steam channel 20. The one-way valve plate 5 is provided in the first steam channel 20 for opening or blocking the first steam channel 20. The one-way valve plate 5 is used to prevent the fluid entering the first steam channel 20 from the first channel outlet 21 from flowing into the combined steam channel 30. The one-way valve plate 5 forms a sealing and blocking structure by combining with the wall body constituting the first steam channel 20. Among them, a platform portion 25 is provided on the inner wall body of the first steam channel 20, such as Figure 1 and Figure 2As shown, the platform portion 25 is an inwardly protruding step structure arranged on the inner wall of the middle part of the first steam channel 20, and a circle of upward flange 251 is arranged on the inner edge of the step. The platform portion 25 is also a soft structure; the one-way valve plate 5 includes a transverse portion 51 and a vertical portion 52 that are connected to each other. The transverse portion 51 remains overlapped on the platform portion 25, and the lower surface of the transverse portion 51 is connected to the flange 251 to form a sealing structure. The vertical portion 52 extends downward in the first steam channel 20, and extends through the first channel entrance 23 into the combined steam channel 30. A reset spring 6 is arranged between the vertical portion 52 and the wall of the first steam channel 20. The reset spring 6 is used to pull the transverse portion 51 to remain overlapped on the platform portion 25. As shown Figure 1 and Figure 2 As shown, the bottom of the vertical portion 52 has a T-shaped structure, and the bottom end has a circle of blocking wall 521 extending radially outward; the return spring 6 is a tower-shaped spring, and its end with a smaller diameter is connected to the blocking wall 521 at the bottom end of the vertical portion 52, and the end with a larger diameter is connected to the wall body constituting the first channel entrance 23. The return spring 6 is used to pull the vertical portion 52 to move downward, thereby pulling the transverse portion 51 to remain overlapped on the platform portion 25, thereby blocking the first steam channel 20; in this way, by setting the return spring 6, it is possible to well achieve that the one-way valve plate 5 can maintain the blocking of the first steam channel 20 in a natural state or when the input steam pressure is relatively small.

[0041] Further, such as Figure 1 and Figure 2 As shown, looking from top to bottom, the projection of the inner pot air inlet 12 falls on the transverse portion 51, so that when the steam pushes open the one-way valve plate 5, the transverse portion 51 of the one-way valve plate 5 will block the inner pot air inlet 12, thereby preventing steam from entering the inner pot 1 from the inner pot air inlet 12. Therefore, in this embodiment, a protrusion 511 is further provided on the upper part of the transverse portion 51, and the protrusion 511 is higher than the upper surface of the transverse portion 51 by a certain distance. At the same time, when the one-way valve plate 5 is in a state of blocking the first steam channel 20, the protrusion 511 allows a certain movable gap to be left between the transverse portion 51 and the bottom wall 11 of the inner pot 1; this allows the one-way valve plate 5 to move upward when the pressure steam pushes open the one-way valve plate 5, and because the protrusion 511 first touches the bottom wall 11 of the inner pot 1, a certain gap is maintained between the transverse portion 51 and the bottom wall 11, which is conducive to the steam flowing to the inner pot air inlet 12.

[0042] Furthermore, the cooker also includes a steam generator (not shown in the figure), which is connected to the base or directly arranged in the base. The base includes a bottom plate 81 and a second elastic silicone module 7 installed on the bottom plate 81. The second silicone module 7 is arranged below the side plate inlet 31 of the outer plate 3. A second steam channel 70 is provided in the second silicone module 7. The second steam channel 70 is a channel space provided on the second silicone module 7 for conveying steam. In this embodiment, the second silicone module 7 is made of a soft silicone material. The top of the second steam channel 70 has a second channel outlet 71 connected to the side plate inlet 31. The surrounding wall body portion constituting the second channel outlet 71 is arched and can elastically stick to the outer plate 3 and communicate with the side plate inlet 31 when the inner pot 1 is placed on it. In this way, the second silicone module 7 can be well detachably sealed and connected to the outer plate 3, and effectively reduce the leakage of steam in the process of conveying steam from the second steam channel 70 to the combined steam channel 30.

[0043] like Figure 1 and Figure 2 As shown, the second silicone module 7 can be combined with the outer plate 3 to achieve sealing and separation, and the base also includes a joint member 82 arranged below the bottom plate 81, a screw column 83 is arranged on the bottom plate 81, and a screw fixing hole 84 corresponding to the screw column 83 is arranged on the joint member 82, and the joint member 82 is fastened to the bottom plate 81 by screws. An avoidance hole (not marked in the figure) is arranged on the bottom plate 81, and the middle wall 72 of the second silicone module 7 is embedded in the avoidance hole. An extension soft skirt 73 is also arranged below the middle wall 72 of the second silicone module 7, so that the up and down movement of the second silicone module 7 can be limited to a certain extent by the extension soft skirt 73. The joint member 82 includes a lateral wall 85 and a vertical pipe joint 86 connected to each other, and the extended soft skirt 73 is pressed between the bottom plate 81 and the lateral wall 85 of the joint member 82; the vertical pipe joint 86 is provided with a joint hole 87, and the joint hole 87 is connected to the second steam channel 70. In this way, by clamping the second silicone module 7 together with the bottom plate 81 and the joint member 82, on the one hand, the second silicone module 7 is well fixed, and on the other hand, the joint hole 87 on the joint member 82 and the second steam channel 70 on the second silicone module 7 are well sealed and connected, effectively reducing steam leakage.

[0044] Further, the outer shell of the central area of ​​the bottom wall 11 of the inner pot 1 is removed to form a bottom concave cavity with only the inner pot, the bottom concave cavity has an annular wall 9, and the inner pot air inlet 12 is arranged on the inner pot. At least part of the first silicone module 2 is accommodated in the space surrounded by the annular wall 9, i.e., the bottom concave cavity. In this embodiment, the annular wall 9 is a wall body with a certain rigidity, and the annular wall 9 is fixedly connected to the bottom wall 11 of the inner pot 1 by screws; the first silicone module 2 and the bottom wall 11 of the inner pot 1 are connected back to back, that is, the bottom wall 11 of the inner pot 1 forms the upper limit of the first silicone module 2, and the annular wall 9 arranged on the bottom wall 11 of the inner pot 1 is used to limit the horizontal movement of the first silicone module 2, so that the first channel outlet 21 of the first silicone module 2 and the inner pot air inlet 12 arranged on the bottom wall 11 of the inner pot 1 can be stably and accurately connected, effectively reducing the possibility of liquid leakage.

[0045] Furthermore, at least part of the outer plate 3 is located in the space surrounded by the annular wall 9, i.e., the bottom concave cavity. Since the outer plate 3 is a rigid component and is engaged with the first silicone module 2, the outer plate 3 can be positioned by using the annular wall 9, which can also effectively ensure the connection stability between the first channel outlet 21 and the inner pot air inlet 12, thereby reducing liquid leakage.

[0046] In order to improve the stability of the inner pot 1, the bottom plate 81 extends out of the space surrounded by the annular wall 9 to support the bottom wall 11 of the inner pot 1 outside the space surrounded by the annular wall 9. In addition to being used to connect and fix the second silica gel module 7, the bottom plate 81 can also be used to support the inner pot 1. The connection between the bottom plate 81 and the inner pot 1 is arranged outside the space surrounded by the annular wall 9, which is conducive to making the support point close to the outer edge of the bottom of the inner pot 1, so that the inner pot 1 can be placed more stably.

[0047] In order to ensure that steam can be input into the inner pot 1, Figure 1 , Figure 2 , Figure 4 as well as Figure 5As shown, a protrusion 14 or a pit 13 is provided in the gathering area of ​​the small hole 121, and the small hole 121 is arranged on the protrusion 14 or the pit 13. Among them, the positions where the small hole 121 is arranged include at least the following three situations: the first one, the small hole 121 is arranged on the top or bottom wall of the protrusion 14 or the pit 13; the second one, the small hole 121 is arranged on the side wall of the protrusion 14 or the pit 13; the third one, the small hole 121 is arranged on both the top or bottom wall of the protrusion 14 or the pit 13 and the side wall of the protrusion 14 or the pit 13. In this way, the food pressed in the gathering area of ​​the small hole 121 can be effectively lifted up by the protrusion 14 or the pit 13, which is conducive to reducing the probability of the small hole 121 being blocked.

[0048] Furthermore, when the small holes 121 are arranged on the side walls of the protrusions 14 or the recesses 13, the direction and angle of steam input can be controlled according to the different inclination directions and angles of the side walls of the protrusions 14 or the recesses 13; Figure 5 As shown, the side walls of the protrusion 14 or the pit 13 are arranged obliquely and form an angle ɑ with the horizontal plane; Figure 4 As shown, looking from the top down, a circle is drawn with the center line of the inner pot 1 as the center and the distance from the small hole 121 to the center as the radius, and the direction X1 of the steam entering from the small hole 121 and the tangent direction X2 of the small hole 121 on the circumference form an angle β. When the angle ɑ and the angle β are both set at 0° to 75°, it is beneficial for the steam entering from the small hole 121 to push the food in the inner pot 1 and the steam to diffuse in the pot space 10; and through verification, when the angle ɑ is set at 0° to 30° and the angle β is set at 0° to 10°, the steam entering the inner pot 1 from the small hole 121 and the food in the inner pot 1 have a better heat transfer effect, which is beneficial to improve cooking efficiency.

[0049] In another implementation case, the inner pot air inlet 12 can also be arranged on the side wall of the inner pot 1, and correspondingly at least the first silica gel module 2, the outer plate 3, and the annular wall 9 are also correspondingly arranged on the side of the inner pot 1, so as to form a structure and system for air intake from the side of the inner pot 1.

[0050] According to the above scheme, a plurality of inner pot air inlet holes 12, such as 2, 3, 4 or even 5, may be provided on the bottom wall 11 of the inner pot 1. Correspondingly, a plurality of steam first channels 20 corresponding to the inner pot air inlet holes 12 are also provided one-to-one on the first silica gel module 2, and all of these plurality of steam first channels 20 are centrally connected to the combined steam channel 30. When the inner pot 1 is lifted, the inner pot 1, the first silica gel module 2 and the outer plate 3 are moved as a combined pot body, and separated from the bottom plate 81 and the second silica gel module 7. When the inner pot 1 is put down, the second channel outlet 71 of the second silica gel module 7 is connected to the side plate inlet 31 on the back. According to the above technical scheme, compared with the prior art, especially compared with the technical scheme with patent announcement number CN210169730U, the first flexible silicone module 2 is buckled and connected with the outer plate 3 with a certain rigidity, so that the combined steam channel 30 can be sealed and formed, and the outer plate 3 and the first silicone module 2 can be conveniently disassembled and cleaned; secondly, the one-way valve plate 5 is arranged in the first steam channel 20, so that when the inner pot 1 is lifted off the base, the liquid in the inner pot 1 will not leak out. At most, only a small amount of liquid remains in the first steam channel 20 located before the one-way valve plate 5, which is solved by disassembly and cleaning, which effectively solves the problem of liquid leaking from the bottom of the inner pot 1 caused by vertical placement of the inner pot 1 and steam input from the bottom of the inner pot 1.

Claims

1. A cooker with an improved steam feeding structure, the cooker comprising an inner pot, the wall of the inner pot being provided with an inner pot air inlet hole for introducing steam; characterized in that: A first silicone module is arranged on the outer side of the inner pot, at least one first steam channel is arranged on the first silicone module, the top of the first steam channel has a first channel outlet connected to the inner pot air inlet, the surrounding wall portion constituting the first channel outlet is in a bow-back shape and elastically adheres to the wall of the inner pot and is connected to the inner pot air inlet; an outer plate is arranged on the outer side of the first silicone module and is snap-fitted with the inner pot, a side plate inlet is arranged on the outer side of the first silicone module, and a combined steam channel connecting the side plate inlet and the first steam channel is formed between the outer plate and the first silicone module; a one-way valve plate is arranged in the first steam channel, and the one-way valve plate is used to prevent the fluid entering the first steam channel from the first channel outlet from flowing to the combined steam channel, and the wall of the inner pot, the first silicone module and the outer plate are detachably connected together inside and outside.

2. The cooker with improved steam feeding structure according to claim 1, characterized in that: The one-way valve plate includes a transverse portion and a vertical portion that are connected to each other. A platform portion is arranged on the inner wall of the first steam channel. The transverse portion is kept overlapping the platform portion. The vertical portion extends downward in the first steam channel. A return spring is arranged between the vertical portion and the wall of the first steam channel. The return spring is used to pull the transverse portion to keep overlapping the platform portion.

3. The cooker with improved steam feeding structure according to claim 1, characterized in that: The utility model also includes a base, wherein the base includes a bottom plate and a second silicone module installed on the bottom plate, the second silicone module has a second steam channel, the top of the second steam channel has a second channel outlet connected to the side plate inlet, the surrounding wall body portion constituting the second channel outlet is arched, and when the inner pot is close to the bottom plate, the surrounding wall body portion can elastically stick to the outer plate and connect to the side plate inlet.

4. The cooker with improved steam feeding structure according to claim 3, characterized in that: The base also includes a joint piece arranged on the bottom plate, and the joint piece is fastened to the bottom plate by screws; an avoidance hole is arranged on the bottom plate, and the middle wall of the second silicone module is embedded in the avoidance hole; the joint piece includes mutually connected transverse walls and vertical pipe joints, and a joint hole is arranged in the vertical pipe joint; an extended soft skirt is also arranged below the middle wall of the second silicone module, and the extended soft skirt is pressed between the bottom plate and the transverse wall of the joint piece, and the joint hole is connected to the second steam channel.

5. The cooker with improved steam feeding structure according to claim 4, characterized in that: An annular wall is arranged on the wall of the inner pot, and at least a part of the first silica gel module is accommodated in a space surrounded by the annular wall.

6. The cooker with improved steam feeding structure according to claim 5, characterized in that: At least a portion of the outer side plate is located in the space surrounded by the annular wall.

7. The cooker with improved steam feeding structure according to claim 5, characterized in that: The inner pot is placed above the bottom plate, and the bottom plate extends out of the space surrounded by the annular wall and continues to support the inner pot wall body located outside the space surrounded by the annular wall.

8. The cooker with an improved steam feeding structure according to any one of claims 1 to 7, characterized in that: The inner pot air inlet hole is composed of a plurality of pinhole-shaped small holes.

9. The cooker with improved steam feeding structure according to claim 8, characterized in that: A protrusion or a concave pit is provided in the gathering area of ​​the small holes, and the small holes are arranged on the protrusion or the concave pit.

10. The cooker with an improved steam feeding structure according to any one of claims 1 to 7, characterized in that: The inner pot is a sandwich structure.

Images