Cooking equipment

Abstract

The utility model discloses cooking equipment, and the anti-overflow water valve comprises a valve body, a flow channel cavity and an expansion cavity are formed in the valve body, the valve body is provided with a water inlet flow channel and a water outlet flow channel which are respectively communicated with the flow channel cavity, and the valve body is also provided with an overflow inlet communicated with the expansion cavity; the valve element is movably installed in the valve body, one part of the valve element is located in the flow channel cavity, and the other part of the valve element is located in the expansion cavity; the expansion part is arranged in the expansion cavity, and after the expansion part is wetted with water, the expansion part is suitable for pushing the valve element to move and enabling the valve element to disconnect the water inlet flow channel and the water outlet flow channel. According to the anti-overflow water valve, the problem of water overflow during water supply can be well solved, the safety of water supply is improved, overflow accidents are avoided, and the anti-overflow water valve is simple in structure and convenient to install.

Description

Technical Field

[0001] This utility model relates to the field of cooking equipment technology, and in particular to an anti-overflow valve and a cooking device having the anti-overflow valve. Background Technology

[0002] Steam ovens, as multifunctional kitchen appliances, are widely used in homes and the catering industry. To improve ease of use, many steam ovens are equipped with automatic water filling systems. However, if the water level in the tank or sink is not properly controlled during the automatic water filling process, water can easily overflow, causing equipment damage, environmental pollution, and even electric shock accidents and contamination of the entire kitchen. Currently, there are some overflow prevention devices on the market, but most are complex in structure, costly, inconvenient to maintain, and their effectiveness is not ideal, leaving room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an anti-overflow valve, which has a simple structure and can effectively cut off water supply lines, ensuring water supply safety.

[0004] An anti-overflow valve according to an embodiment of the present invention includes: a valve body, wherein a flow channel cavity and an expansion cavity are formed within the valve body, the valve body is provided with an inlet flow channel and an outlet flow channel respectively communicating with the flow channel cavity, and the valve body is also provided with an overflow inlet communicating with the expansion cavity; a valve core, wherein the valve core is movably installed within the valve body, a portion of the valve core being located within the flow channel cavity and another portion being located within the expansion cavity; and an expansion member, wherein the expansion member is disposed within the expansion cavity, and the expansion member, after being wetted, is adapted to push the valve core to move and cause the valve core to disconnect the inlet flow channel and the outlet flow channel.

[0005] According to the embodiment of this utility model, an anti-overflow valve is installed in the water supply pipeline. When the water supply pipeline overflows due to excessive water supply, the anti-overflow valve can push the valve core to disconnect the flow channel cavity after the expansion member gets wet, so that there is no water flow between the inlet and outlet flow channels, thereby stopping the water supply pipeline. This effectively solves the problem of water supply overflow, improves the safety of water supply, and avoids the occurrence of overflow accidents. Moreover, the anti-overflow valve has a simple structure and is easy to install.

[0006] According to some embodiments of the present invention, the anti-overflow valve has a valve cover inside the valve body, which divides the inner cavity of the valve body into a flow channel cavity and an expansion cavity, and the valve core is movably inserted through the valve cover.

[0007] According to some embodiments of the present utility model, the anti-overflow valve includes a valve core including a valve stem and a plug. The valve stem includes a rod body and a disc body. The rod body passes through the valve cover. One end of the rod body is connected to the disc body and the other end is connected to the plug.

[0008] The disc portion is located inside the expansion cavity and presses against the expansion member, the plug is located inside the flow channel cavity, and the disc portion is adapted to drive the plug through the rod portion to disconnect the connection between the water inlet flow channel and the water outlet flow channel.

[0009] The overflow valve according to some embodiments of the present invention further includes a sealing element, which is sleeved outside the rod body and is in sealing cooperation with the valve cover and the valve body.

[0010] According to some embodiments of the present invention, the overflow valve has a plug structure that is an elastic seal.

[0011] According to some embodiments of the present invention, the anti-overflow valve includes a valve seat and a top cover. The top cover is connected to the valve seat, and the valve cover is located between the top cover and the valve seat. The valve cover and the top cover define the flow channel cavity, and the valve cover and the valve seat define the expansion cavity.

[0012] According to some embodiments of the present invention, the anti-overflow valve has a sealing port formed at the connection point between the inlet channel or the outlet channel and the channel cavity, and the valve core is adapted to seal the sealing port to disconnect the inlet channel or the outlet channel from the channel cavity.

[0013] According to some embodiments of the present invention, the inlet channel and the outlet channel extend in the same direction and both intersect the opening direction of the sealing port.

[0014] According to some embodiments of the present invention, the anti-overflow valve has the same extension direction for the inlet channel and the outlet channel, and both are perpendicular to the movement direction of the valve core.

[0015] According to some embodiments of the present invention, the overflow valve has multiple overflow inlets, and the multiple overflow inlets are distributed sequentially at intervals in the circumferential direction of the expansion chamber.

[0016] Alternatively, the overflow inlet may be an annular opening, and the overflow inlet may be distributed around the expansion cavity.

[0017] According to some embodiments of the present invention, the anti-overflow valve is further provided with a limiting groove in the valve body, at least a portion of the expansion member is located in the limiting groove and is limited along a first direction with the limiting groove, the first direction intersecting the movement direction of the valve core.

[0018] This utility model also proposes a cooking device.

[0019] The cooking device according to an embodiment of the present utility model includes a device body and an overflow valve as described in any of the above embodiments. The device body has a separate installation space and a cooking space. Electrical components are installed in the installation space. The installation space is also provided with a water box and a water supply pipe. The water supply pipe is used to connect a water source to the water box. The overflow valve is located in the installation space, and the water inlet channel and the water outlet channel are connected in series in the water supply pipe.

[0020] According to some embodiments of the present invention, the cooking device is further provided with a control valve in the water supply pipeline. The control valve is used to control the on / off state of the water supply pipeline, and the control valve is located upstream of the anti-overflow valve in the water supply pipeline.

[0021] The cooking equipment and the aforementioned anti-overflow valve have the same advantages over the prior art, which will not be repeated here.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 This is an exploded view of the anti-overflow valve according to an embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional view of the anti-overflow valve in the water-flow state according to an embodiment of the present utility model;

[0026] Figure 3 This is a cross-sectional view of the anti-overflow valve in the water-cut-off state according to an embodiment of the present utility model;

[0027] Figure 4 This is a structural schematic diagram of a cooking device according to an embodiment of the present utility model.

[0028] Figure label:

[0029] 1000 cooking equipment

[0030] 100 anti-overflow valve

[0031] Valve body 1, valve seat 11, limiting groove 111, valve cover 12, sealing boss 121, top cover 13, water inlet channel 131, water outlet channel 132, sealing port 133, channel cavity 14, expansion cavity 15, overflow inlet 16, valve core 2, valve stem 21, disc body 211, stem body 212, plug 22, sealing element 3, sealing groove 31, expansion element 4.

[0032] The main body of the equipment is 200, the installation space is 201, the water box is 300, the control valve is 400, and the water supply pipeline is 500. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Reference below Figures 1-4The overflow prevention valve 100 according to an embodiment of the present utility model is described. The overflow prevention valve 100 has a simple structure and can effectively solve the problem of continuous overflow of water supply pipeline 500 in overflow environment, effectively cut off the water supply source, and ensure that overflow does not overflow in large quantities, thereby effectively avoiding overflow accidents.

[0037] like Figures 2-4 As shown, an overflow prevention valve 100 according to an embodiment of the present invention includes: a valve body 1, a valve core 2, and an expansion member 4. It should be noted that the overflow prevention valve 100 can be applied to equipment requiring water supply, and can be installed in the water supply pipeline 500 of the equipment. When the equipment is supplying water through the water supply pipeline 500 and overflow occurs due to uncontrolled water supply, the overflow prevention valve 100 can effectively switch the water supply of the water supply pipeline 500, thereby preventing continuous overflow in the equipment. This prevents water from damaging electrical components in the equipment, improves equipment safety, and ensures the reliability of overflow prevention. For example, if the equipment is a cooking device 1000, the overflow prevention valve 100 can play a role in preventing overflow during the water supply process of the cooking device 1000.

[0038] The valve body 1 contains a flow channel cavity 14 and an expansion cavity 15. The valve body 1 is provided with an inlet flow channel 131 and an outlet flow channel 132, which are respectively connected to the flow channel cavity 14. Specifically, the inlet flow channel 131 and the outlet flow channel 132 are connected to the flow channel cavity 14 so that when the flow channel cavity 14 is in a water-flow state, the inlet flow channel 131 and the outlet flow channel 132 are in a conductive state, and when the flow channel cavity 14 is in a water-cut state, the inlet flow channel 131 and the outlet flow channel 132 are in a disconnected state. In actual installation, the inlet flow channel 131 and the outlet flow channel 132 can be connected in series in the water supply pipeline 500, so that the connection state of the water supply pipeline 500 can be switched by switching the conductive state within the flow channel cavity 14.

[0039] The valve core 2 is movably installed inside the valve body 1. A portion of the valve core 2 is located in the flow channel cavity 14 and another portion is located in the expansion cavity 15. The ratio of the portion of the valve core 2 in the flow channel cavity 14 to the portion in the expansion cavity 15 can be changed by the movement of the valve core 2 relative to the valve body 1. Thus, the flow channel cavity 14 is blocked by the movement of the valve core 2 toward the flow channel cavity 14.

[0040] The valve body 1 is also provided with an overflow inlet 16 communicating with the expansion chamber 15. The overflow inlet 16 connects the outside of the valve body 1 with the expansion chamber 15. The expansion member 4 is disposed in the expansion chamber 15. After being wetted, the expansion member 4 is suitable for pushing the valve core 2 to move and causing the valve core 2 to disconnect the inlet channel 131 and the outlet channel 132. The expansion force of the expansion member 4 can be used to push the valve core 2. When the valve core 2 is pushed to move into the channel cavity 14 to the target position, the inlet channel 131 and the outlet channel 132 can be disconnected through the valve core 2. The expansion member 4 can be set as expansion cotton. The expansion cotton has the function of absorbing water and expanding. The wet volume of the expansion cotton can increase by 100%. Therefore, the expansion member 4 can effectively drive the valve core 2 when wet.

[0041] In this way, when the valve body 1 is in a space where water may overflow, the equipment supplies water through the water supply pipeline 500 before overflow. The inlet channel 131 and the outlet channel 132 are connected through the channel cavity 14. When water overflow occurs during the water supply process of the water supply pipeline 500, the overflow water can enter the expansion cavity 15 through the overflow inlet 16. The expansion element 4 expands after getting wet in the expansion cavity 15. At this time, the expansion cotton presses against the valve core 2 and can push the valve core 2 toward the channel cavity 14. After the valve core 2 disconnects the inlet channel 131 and the outlet channel 132, the water supply pipeline 500 stops supplying water. At this time, the uncontrolled overflow caused by the continuous water supply of the water supply pipeline 500 can be avoided, thereby ensuring the safety of the equipment's water supply.

[0042] According to the embodiment of the present utility model, the anti-overflow valve 100 is installed in the water supply pipeline 500. When the water supply pipeline 500 overflows due to excessive water supply, the anti-overflow valve 100 can push the valve core 2 to disconnect the flow channel cavity 14 after the expansion member 4 gets wet, so that there is no water flow between the inlet flow channel 131 and the outlet flow channel 132, thereby stopping the water supply to the water supply pipeline 500. This effectively solves the problem of water supply overflow, improves the safety of water supply, and avoids the occurrence of overflow accidents. Moreover, the anti-overflow valve 100 has a simple structure and is easy to install.

[0043] In some embodiments, a valve cover 12 is provided inside the valve body 1, which divides the inner cavity of the valve body 1 into a flow channel cavity 14 and an expansion cavity 15, such as... Figure 2 and Figure 3 As shown, the valve cover 12 is installed inside the valve body 1 and divides the valve body 1 into a flow channel cavity 14 and an expansion cavity 15 spaced apart in the vertical direction. The valve body 1 and the valve cover 12 can be molded separately, and the valve cover 12, after being installed in the valve body 1, jointly defines the flow channel cavity 14 and the expansion cavity 15, thereby greatly reducing the molding difficulty of the valve body 1 and reducing the installation cost.

[0044] The valve core 2 is movably inserted into the valve cover 12. In this way, the valve cover 12 and the valve body 1 are installed and fixed to form an integral structure. When the valve core 2 moves inside the valve body 1, the valve core 2 is inserted into the valve cover 12 and sealed with the valve cover 12. This prevents water leakage from the insertion hole of the valve core 2 during the movement of the valve core 2. The structure is simple, easy to set up, and the sealing requirements for the movement of the valve core 2 are low.

[0045] In some embodiments, the valve core 2 includes a valve stem 21 and a plug 22. The valve stem 21 includes a stem portion 212 and a disc portion 211. The stem portion 212 passes through the valve cover 12. One end of the stem portion 212 is connected to the disc portion 211 and the other end is connected to the plug 22. The disc portion 211 is located in the expansion chamber 15 and presses against the expansion member 4. The plug 22 is located in the flow channel cavity 14. The disc portion 211 is adapted to drive the plug 22 through the stem portion 212 to disconnect the connection between the water inlet flow channel 131 and the water outlet flow channel 132. In this way, when overflow occurs, the expansion member 4 presses against the disc portion 211 and, with the expansion of the expansion member 4, the disc portion 211 drives the stem portion 212 to move toward the flow channel cavity 14, thereby causing the plug 22 to block the flow channel cavity 14, cutting off the connection between the water inlet flow channel 131 and the water outlet flow channel 132, and stopping the water supply.

[0046] The outer diameter of the disc portion 211 is larger than the outer diameter of the rod portion 212, and the disc portion 211 has a larger contact surface on the side facing the expansion member 4. When the expansion member 4 expands, the expansion member 4 can press against the contact surface of the disc portion 211, so as to effectively push the disc portion 211 towards the direction closer to the flow channel cavity 14 through the contact surface, thereby driving the plug 22 to move relative to the flow channel cavity 14, and realizing the function of switching the flow.

[0047] Specifically, such as Figure 2 and Figure 3 As shown, the bottom of the disc body 211 is in contact with the expansion member 4, the lower end of the rod body 212 is connected to the upper side of the disc body 211, and the upper end of the rod body 212 is connected to the plug 22. Wherein, as Figure 2 The water supply pipe 500 shown is in a non-overflowing state, the expansion joint 4 is not wet, its volume is small, and the plug 22 is separated from the top wall inside the flow channel cavity 14, as shown. Figure 3 The water supply pipe 500 shown is in an overflow state. The expansion member 4 is wet with water and its volume increases, pushing the disc part 211 upward. The disc part 211 drives the plug 22 to move upward, and makes the plug 22 press against the top wall inside the flow channel cavity 14, thereby cutting off the water flow and preventing continuous overflow.

[0048] In some embodiments, the anti-overflow valve 100 further includes a sealing element 3, which is sleeved outside the rod portion 212 and seals against the valve cover 12 and the valve body 1. That is, the sealing element 3 can elastically contact the inner peripheral wall of the rod portion 212, while the outer peripheral wall of the sealing element 3 can seal against the valve body 1. Figure 2 and Figure 3 As shown, the sealing element 3 and the sealing cover are distributed along the axial direction of the rod body 212. The sealing element 3 can seal and press against the sealing cover in the axial direction. In this way, when the rod body 212 moves through the sealing cover, the flow channel cavity 14 and the expansion cavity 15 are always in a sealed state, which can prevent the water in the flow channel cavity 14 from entering the expansion cavity 15 and acting on the expansion element 4, thus ensuring the reliability of the overflow cut-off.

[0049] In specific installation, sealing bosses 121 and sealing grooves 31 can be provided on the sides of the sealing element 3 and the sealing cover facing each other for insertion and mating to improve the sealing effect. Specifically, as follows: Figure 2 and Figure 3 As shown, a sealing groove 31 is formed at the bottom of the seal 3, and a sealing boss 121 is formed on the upper side of the sealing cover. The sealing boss 121 is inserted into the sealing groove 31 with its face upward. Both the sealing boss 121 and the sealing groove 31 can be constructed as annular structures so that the sealing boss 121 is distributed around the rod body 212, thereby improving the circumferential sealing of the rod body 212.

[0050] In some embodiments, the plug 22 is constructed as an elastic seal 3. This allows the plug 22 to have a certain elastic buffering capacity, meaning that when the plug 22 is in pressure contact with the top of the flow channel cavity 14, the two can make elastic pressure contact, avoiding rigid contact between the plug 22 and the valve body 1 and preventing structural damage. Simultaneously, after contacting the top of the flow channel cavity 14, the plug 22 can undergo elastic deformation to fill the contact gap between the two, increasing the sealing effect. This effectively prevents the plug 22 from failing to seal properly and ensures the accuracy of water flow cutoff.

[0051] Specifically, the plug 22 can be constructed as a silicone structure.

[0052] In some embodiments, the valve body 1 includes a valve seat 11 and an upper cover 13. The upper cover 13 is connected to the valve seat 11, and a valve cap 12 is located between the upper cover 13 and the valve seat 11. The valve cap 12 and the upper cover 13 define a flow channel cavity 14, and the valve cap 12 and the valve seat 11 define an expansion cavity 15. That is, the valve seat 11 and the upper cover 13 can be formed separately, and when the valve seat 11 and the upper cover 13 are installed, the valve cap 12 can be installed between them first, so that the three structural components are relatively fixed, thereby defining the flow channel cavity 14 and the expansion cavity 15. Thus, each component of the valve body 1 can be formed independently, which helps to reduce the overall molding difficulty of the valve body 1 and reduce the processing cost.

[0053] Specifically, such as Figure 2 and Figure 3 As shown, the valve core 2 can be fixed to the valve cover 12 first, and then the valve cover 12 and the upper cover 13 can be fixed relative to each other, so that a flow channel cavity 14 is defined between the valve cover 12 and the upper cover 13. The inlet flow channel 131 and the outlet flow channel 132 are both formed in the valve cover 12. In this way, the water in the water supply pipeline 500 enters the flow channel cavity 14 between the valve cover 12 and the upper cover 13 from the inlet flow channel 131, and then flows out from the flow channel cavity 14 toward the outlet flow channel 132. At the same time, the valve seat 11 forms an upwardly open space, and the upper cover 13 is installed on the upper part of the valve seat 11. The bottom of the valve seat 11, the valve cover 12, and the upper cover 13 together define an expansion cavity 15. An overflow inlet 16 is formed between the valve seat 11 and the upper cover 13. Thus, an integral anti-overflow valve 100 can be formed, which has a simple structure and is easy to install.

[0054] In some embodiments, the inlet channel 131 or the outlet channel 132 has a blocking port 133 at the connection point with the channel cavity 14. The valve core 2 is adapted to block the blocking port 133 to disconnect the inlet channel 131 or the outlet channel 132 from the channel cavity 14. In other words, when the plug 22 of the valve core 2 moves toward the channel cavity 14, it can gradually approach and press against the edge of the blocking port 133 to achieve the closure of the blocking port 133.

[0055] In other words, the sealing port 133 can be set at the outlet end of the inlet channel 131 so that the plug 22 can block the outlet end of the inlet channel 131, thereby preventing the inlet channel 131 from supplying water to the channel cavity 14 and the outlet channel 132, thus achieving water circuit cutoff; or, the sealing port 133 can be set at the inlet end of the outlet channel 132 so that the plug 22 can block the inlet end of the outlet channel 132, thereby preventing the water in the channel cavity 14 from flowing to the outlet channel 132, thus also achieving water circuit cutoff. The structure is simple and the setting method is flexible and selectable.

[0056] Specifically, such as Figure 2 and Figure 3 As shown, the sealing port 133 is located at the outlet end of the water inlet channel 131 and at the upper end of the valve core 2. In this way, when the valve core 2 moves upward, the sealing port 133 can be blocked and closed, thereby cutting off the water flow from the channel cavity 14 to the water inlet channel 131.

[0057] In some embodiments, the inlet channel 131 and the outlet channel 132 extend in the same direction and both intersect the opening direction of the sealing port 133. In other words, the valve core 2 moves in the direction that intersects the extension directions of the inlet channel 131 and the outlet channel 132 to close the sealing port 133. The structure is simple and facilitates effective water shut-off.

[0058] Specifically, such as Figure 2 and Figure 3 As shown, the inlet channel 131 is located on the right side of the upper cover 13, and the outlet channel 132 is located on the left side of the upper cover 13. The inlet channel 131 and the outlet channel 132 extend in the same direction, both extending left and right. The sealing port 133 is connected to the right end of the outlet channel 132 and is designed to extend downwards relative to the outlet channel 132. This allows the sealing port 133 to be effectively closed when the valve core 2 moves towards it, and the water pressure in the inlet channel 131 will not directly act on the plug 22 of the sealing port 133. Figure 2 and Figure 3 As shown, after the water in the inlet channel 131 enters the channel cavity 14, a turbulence surface is formed on the right side of the plug 133, which can reduce the water flow force in the inlet channel 131 and ensure the stability of the plug 22.

[0059] In some embodiments, the inlet channel 131 and the outlet channel 132 extend in the same direction and are both perpendicular to the movement direction of the valve core 2. In other words, the movement direction of the valve core 2 can be set to be perpendicular to the extension direction of the inlet channel 131 and the outlet channel 132, so that the valve core 2 can directly act on the connection between the inlet channel 131 and the outlet channel 132, reducing the difficulty of the plug 22 to cut off the water flow and making it easier to cut off the water flow more accurately.

[0060] Specifically, such as Figure 2 and Figure 3 As shown, the inlet channel 131 and the outlet channel 132 can be extended in the left and right direction as shown in the figure. At the same time, the valve core 2 is placed below the inlet channel 131 and the outlet channel 132, and the valve core 2 moves in the up and down direction. The sealing port 133 at the inlet end of the outlet channel 132 is located in the direction of movement of the valve core 2. In this way, when the valve core 2 moves upward, it can move to the connection point of the inlet channel 131 and the outlet channel 132 to achieve effective water cut-off.

[0061] In some embodiments, there are multiple overflow inlets 16, and the multiple overflow inlets 16 are distributed sequentially and spaced apart in the circumferential direction of the expansion chamber 15. That is, when the anti-overflow valve 100 is in an overflow environment, the multiple overflow inlets 16 can all serve to allow overflow to enter. That is, when overflow occurs in different directions around the anti-overflow valve 100, the water flow at the corresponding position can flow into the expansion chamber 15 through the overflow inlet 16 at the corresponding position. In other words, when overflow occurs in a part of the area, water can be effectively cut off, improving the accuracy of overflow control.

[0062] Alternatively, the overflow inlet 16 can be constructed as an annular opening, distributed around the expansion chamber 15 and extending circumferentially along the expansion chamber 15. This means that when the anti-overflow valve 100 is in an overflow environment, overflow can enter from any position on the circumference of the expansion chamber 15 via the annular overflow inlet 16. In other words, when overflow occurs in different directions around the anti-overflow valve 100, the water flow at the corresponding position can flow into the expansion chamber 15 through the corresponding overflow inlet 16. This allows for effective water shut-off when overflow occurs in a partial area, improving the accuracy of overflow control. Furthermore, by setting the overflow inlet 16 as an annular opening, this opening can be defined by the connection between the valve seat 11 and the upper cover 13, eliminating the need for separate fabrication of the overflow inlet 16 and reducing installation costs.

[0063] In some embodiments, the valve body 1 is further provided with a limiting groove 111, at least a portion of the expansion member 4 is located in the limiting groove 111 and is limited along the first direction with the limiting groove 111. The first direction intersects with the movement direction of the valve core 2. Thus, the expansion member 4 can be effectively limited within the valve body 1, avoiding the instability of the position of the expansion member 4 which would prevent it from effectively pushing the valve core 2 to move, thereby improving the reliability of the movement of the valve core 2.

[0064] Among them, the valve core 2 can move in the up and down direction. The first direction can be set to form a certain angle with the up and down direction. For example, the first direction is along the horizontal direction, that is, the limiting groove 111 can limit the expansion member 4 in the left and right direction to ensure that the expansion member 4 and the valve core 2 are distributed in the up and down direction, and to ensure that the expansion member 4 can effectively push the valve core 2 toward the sealing port 133.

[0065] Specifically, such as Figure 2 and Figure 3 As shown, a limiting groove 111 is formed at the bottom of the expansion chamber 15. The limiting groove 111 is open upwards, and the bottom of the expansion member 4 is located inside the limiting groove 111. The expansion member 4 and the limiting groove 111 are limited in the left and right directions. The valve core 2 is located directly above the expansion member 4. In this way, during the use of the anti-overflow valve 100, the expansion member 4 will not shift in the left and right directions and thus will not be able to be aligned with the valve core 2. Therefore, it can be ensured that the expansion member 4 can accurately and effectively push the valve core 2 when it expands with water, thereby achieving accurate control of water cut-off.

[0066] This utility model also proposes a cooking device 1000.

[0067] The cooking device 1000 according to an embodiment of the present invention includes a device body 200 and an overflow prevention valve 100 of any of the above embodiments. The device body 200 has a separate installation space 201 and a cooking space. Electrical components are installed in the installation space 201. The installation space 201 is also provided with a water box 300 and a water supply pipe 500. The water supply pipe 500 is used to connect the water source to the water box 300. The overflow prevention valve 100 is located in the installation space 201, and the inlet flow channel 131 and the outlet flow channel 132 are connected in series in the water supply pipe 500. Thus, when water is actively supplied to the water box 300 through the water supply pipe 500, if the water box 300 overflows in the installation space 201, the overflow prevention valve 100 can actively cut off the water supply pipe 500 to prevent the overflow of the water box 300 from damaging the electrical components in the installation space 201.

[0068] The cooking equipment 1000 can be a steam oven. The top of the steam oven has an installation space 201, and the cooking space is located below the installation space 201. A heating element and a cooking fan can be installed within the cooking space. The cooking fan blows airflow from near the heating element into the entire cooking space to heat the food within. Specifically, a drive motor and a control circuit board can be installed within the installation space 201. The control circuit board contains electronic components and is electrically connected to the drive motor, heating element, and control panel of the steam oven. A steam generator can also be installed to supply steam into the cooking space. A water tank 300 is installed within the installation space 201 and can be connected to the steam generator to supply water to it.

[0069] The water box 300 is connected to an external water source through a water supply pipe 500, so that water is supplied to the water box 300 through the water supply pipe 500. The water box 300, control circuit board, drive motor, etc. are all located in the installation space 201. Therefore, if water overflows when water is supplied to the water box 300 through the water supply pipe 500, the anti-overflow valve 100 can cut off the water supply pipe 500 in time to prevent the water box 300 from overflowing due to excessive water supply, thus ensuring the safety of electrical components in the installation space 201.

[0070] In some embodiments, the water supply pipeline 500 is further provided with a control valve 400, which is used to control the on / off state of the water supply pipeline 500. The control valve 400 can actively control the water supply pipeline 500 to open or close, meaning that when the water box 300 is supplying water normally, the control valve 400 can actively switch between on and off states. The control valve 400 is located upstream of the overflow prevention valve 100 in the water supply pipeline 500, meaning that the control valve 400 and the overflow prevention valve 100 are connected in series in the water supply pipeline 500. Therefore, when the control valve 400 cannot normally control the flow state of the water supply pipeline 500, the overflow prevention valve 100 can be used to control overflow, improving water supply safety.

[0071] In other words, when the control valve 400 fails to control the water supply line 500, such as when the control valve 400 fails to close the water supply line 500, the water supply line 500 will continue to supply water to the water box 300. At this time, the water in the water box 300 will overflow into the installation space 201, and some water will enter the expansion chamber 15. This will cause the expansion element 4 to push the valve core 2 to disconnect the flow channel chamber 14, thereby controlling the water supply line 500 to stop supplying water and ensuring the safety of the water supply.

[0072] Specifically, in actual installation, such as Figure 4 As shown, the overflow valve 100 can be set at the bottom of the water box 300 and close to the overflow port of the water box 300. In this way, when the water box 300 is full, the water can overflow to the overflow valve 100 and enter the expansion chamber 15, which improves the accuracy of the overflow valve 100 in controlling the water supply pipeline 500, thereby cutting off the water source to prevent further overflow and ensuring the safety of the cooking equipment 1000.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooking device, characterized in that, include: The main body of the equipment (200) has a separate installation space (201) and a cooking space. Electrical components are installed in the installation space (201). The installation space (201) is also equipped with a water box (300) and a water supply pipe (500). The water supply pipe (500) is used to connect a water source to the water box (300). An overflow prevention valve is provided within the installation space (201). The overflow prevention valve includes a valve body (1), a valve core (2), and an expansion member (4). A flow channel cavity (14) and an expansion cavity (15) are formed within the valve body (1). The valve body (1) is provided with an inlet flow channel (131) and an outlet flow channel (132) respectively communicating with the flow channel cavity (14). The inlet flow channel (131) and the outlet flow channel (132) are connected in series in the water supply pipeline (500). The valve body (1) also... An overflow inlet (16) communicating with the expansion chamber (15) is provided. The valve core (2) is movably installed in the valve body (1). A part of the valve core (2) is located in the flow channel cavity (14) and another part is located in the expansion chamber (15). The expansion member (4) is provided in the expansion chamber (15). After being wetted, the expansion member (4) is adapted to push the valve core (2) to move and cause the valve core (2) to disconnect the inlet flow channel (131) and the outlet flow channel (132).

2. The cooking apparatus according to claim 1, characterized in that, The valve body (1) is provided with a valve cover (12), which divides the inner cavity of the valve body (1) into a flow channel cavity (14) and an expansion cavity (15). The valve core (2) is movably inserted through the valve cover (12).

3. The cooking apparatus according to claim 2, characterized in that, The valve core (2) includes a valve stem (21) and a plug (22). The valve stem (21) includes a stem body (212) and a disc body (211). The stem body (212) passes through the valve cover (12). One end of the stem body (212) is connected to the disc body (211) and the other end is connected to the plug (22). The disc portion (211) is located inside the expansion cavity (15) and presses against the expansion member (4), the plug (22) is located inside the flow channel cavity (14), and the disc portion (211) is adapted to drive the plug (22) through the rod portion (212) to disconnect the connection between the water inlet flow channel (131) and the water outlet flow channel (132).

4. The cooking apparatus according to claim 3, characterized in that, The anti-overflow valve also includes a sealing element (3), which is sleeved on the outside of the rod body (212) and is sealed to the valve cover (12) and the valve body (1).

5. The cooking apparatus according to claim 3, characterized in that, The plug (22) is constructed as an elastic seal (3).

6. The cooking apparatus according to claim 2, characterized in that, The valve body (1) includes a valve seat (11) and an upper cover (13). The upper cover (13) is connected to the valve seat (11). The valve cover (12) is located between the upper cover (13) and the valve seat (11). The valve cover (12) and the upper cover (13) define the flow channel cavity (14). The valve cover (12) and the valve seat (11) define the expansion cavity (15).

7. The cooking apparatus according to claim 1, characterized in that, The inlet channel (131) or the outlet channel (132) has a blocking port (133) at the connection point with the channel cavity (14), and the valve core (2) is adapted to block the blocking port (133) to disconnect the inlet channel (131) or the outlet channel (132) from the channel cavity (14).

8. The cooking apparatus according to claim 7, characterized in that, The inlet channel (131) and the outlet channel (132) extend in the same direction and both intersect the opening direction of the sealing port (133).

9. The cooking apparatus according to claim 7, characterized in that, The inlet channel (131) and the outlet channel (132) extend in the same direction and are both perpendicular to the movement direction of the valve core (2).

10. The cooking apparatus according to claim 1, characterized in that, There are multiple overflow inlets (16), and the multiple overflow inlets (16) are distributed sequentially and spaced apart in the circumferential direction of the expansion cavity (15); Alternatively, the overflow inlet (16) may be constructed as an annular opening, and the overflow inlet (16) may be distributed around the expansion cavity (15).

11. The cooking apparatus according to claim 1, characterized in that, The valve body (1) is further provided with a limiting groove (111), at least a portion of the expansion member (4) is located in the limiting groove (111) and is limited along a first direction with the limiting groove (111), the first direction intersecting the movement direction of the valve core (2).

12. The cooking apparatus according to claim 1, characterized in that, The water supply pipeline (500) is also equipped with a control valve (400), which is used to control the opening and closing of the water supply pipeline (500), and the control valve (400) is located upstream of the anti-overflow valve in the water supply pipeline (500).

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