Anti-overflow valve and cooking equipment

Abstract

The invention discloses an anti-overflow water valve and cooking equipment, 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 communicated with the flow channel cavity, and the valve body is further 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] The present invention relates to the technical field of cooking equipment, and in particular to an anti-overflow valve and cooking equipment having the anti-overflow valve. Background Art

[0002] As a multifunctional kitchen appliance, steam ovens are widely used in households and the catering industry. In order to improve the convenience of use, many steam ovens are equipped with automatic water supply systems. However, during the automatic water supply process, if the water level of the water tank or sink is not properly controlled, it is easy to cause water overflow, causing equipment damage and environmental pollution, and even causing electric shock safety accidents and polluting the entire kitchen. At present, there are some anti-overflow devices on the market, but most of them are complex in structure, high in cost, inconvenient to maintain, and the effect is not ideal, so there is room for improvement. Summary of the invention

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

[0004] According to an embodiment of the present invention, the anti-overflow valve includes: 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 channel and a water outlet channel respectively connected to the flow channel cavity, and the valve body is also provided with an overflow inlet connected to the expansion cavity; a valve core, the valve core is movably installed in the valve body, a part of the valve core is located in the flow channel cavity and the other part is located in the expansion cavity; an expansion member, the expansion member is arranged in the expansion cavity, and the expansion member is suitable for pushing the valve core to move after being wetted with water and causing the valve core to disconnect the water inlet channel and the water outlet channel.

[0005] According to the anti-overflow valve of the embodiment of the present invention, the anti-overflow valve is arranged 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 part is wetted with water, so that no water flows between the water inlet flow channel and the water outlet flow channel, thereby stopping the water supply pipeline from supplying water, thereby effectively solving the problem of water supply overflow, improving the safety of water supply, and avoiding the occurrence of overflow accidents. The anti-overflow valve has a simple structure and is easy to install.

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

[0007] According to some embodiments of the anti-overflow valve of the present invention, the valve core includes a valve stem and a plug, the valve stem includes a rod body and a disc body, the rod body is inserted 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 body is located in the expansion cavity and pressed against the expansion member, the plug is located in the flow channel cavity, and the disc body is suitable for driving the plug through the rod body to disconnect the connection between the water inlet flow channel and the water outlet flow channel.

[0009] The anti-overflow valve according to some embodiments of the present invention further includes a sealing member, which is sleeved outside the rod body and is sealed and matched with the valve cover and the valve body.

[0010] According to the anti-overflow valve of some embodiments of the present invention, the plug is configured as an elastic sealing member.

[0011] According to some embodiments of the anti-overflow valve of the present invention, the valve body includes a valve seat and an upper cover, the upper cover is connected to the valve seat, the valve cover is located between the upper cover and the valve seat, and the valve cover and the upper 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 anti-overflow valve of the present invention, the water inlet channel or the water outlet channel is formed with a blocking port at the connection point with the channel cavity, and the valve core is suitable for blocking the blocking port to disconnect the water inlet channel or the water outlet channel from the channel cavity.

[0013] According to the anti-overflow valve of some embodiments of the present invention, the water inlet flow channel and the water outlet flow channel extend in the same direction and both intersect with the opening direction of the blocking port.

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

[0015] According to some embodiments of the anti-overflow valve of the present invention, there are multiple overflow inlets, and the multiple overflow inlets are distributed in sequence and spaced apart in the circumferential direction of the expansion chamber;

[0016] Alternatively, the overflow inlet is configured as an annular opening, and the overflow inlet is distributed around the expansion chamber.

[0017] According to some embodiments of the anti-overflow valve of the present invention, a limiting groove is further provided 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, and the first direction intersects with the movement direction of the valve core.

[0018] The invention also provides a cooking device.

[0019] A cooking device according to an embodiment of the present invention comprises an equipment body and the anti-overflow valve described in any one of the above embodiments, wherein a separated installation space and a cooking space are formed in the equipment body, electrical components are installed in the installation space, a water box and a water supply pipeline are also provided in the installation space, the water supply pipeline is used to connect a water source to the water box, the anti-overflow valve is arranged in the installation space, and the water inlet flow channel and the water outlet flow channel are connected in series in the water supply pipeline.

[0020] According to some embodiments of the cooking device of the present invention, a control valve is further provided in the water supply pipeline, the control valve is used to control the on-off 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 device and the above-mentioned anti-overflow valve have the same advantages over the prior art, which will not be repeated here.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0028] Reference numerals:

[0029] Cooking equipment 1000,

[0030] Anti-overflow valve 100,

[0031] Valve body 1, valve seat 11, limiting groove 111, valve cover 12, sealing boss 121, upper cover 13, water inlet channel 131, water outlet channel 132, plugging 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, seal 3, sealing groove 31, expansion member 4,

[0032] Equipment body 200 , installation space 201 , water box 300 , control valve 400 , water supply pipeline 500 . DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

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

[0037] like Figure 2-Figure 4As shown, the anti-overflow valve 100 according to one embodiment of the present invention comprises: a valve body 1, a valve core 2 and an expansion member 4. It should be noted that the anti-overflow valve 100 can be applied to equipment that requires water supply, and the anti-overflow valve 100 can be installed in the water supply pipeline 500 of the equipment, so that when the equipment is supplied with water through the water supply pipeline 500 and the water supply is out of control and overflow occurs, the water supply of the water supply pipeline 500 can be switched well through the anti-overflow valve 100, thereby avoiding the situation of continuous overflow in the equipment, thereby avoiding the electrical components in the equipment from being damaged by water due to overflow, improving the safety of the equipment, and ensuring the reliability of anti-overflow. For example, the equipment can be a cooking equipment 1000, that is, the anti-overflow valve 100 can play a role in preventing overflow during the water supply process of the cooking equipment 1000.

[0038] Among them, a flow channel cavity 14 and an expansion cavity 15 are formed in the valve body 1, and the valve body 1 is provided with a water inlet flow channel 131 and a water outlet flow channel 132 respectively connected to the flow channel cavity 14. That is, the water inlet flow channel 131 and the water outlet flow channel 132 are respectively connected to the flow channel cavity 14, so that when the flow channel cavity 14 is in a water-through state, the water inlet flow channel 131 and the water outlet flow channel 132 are in a conducting state, and when the flow channel cavity 14 is in a water-off state, the water inlet flow channel 131 and the water outlet flow channel 132 are in a disconnected state, and in actual installation, the water inlet flow channel 131 and the water outlet flow channel 132 can be connected in series in the water supply pipeline 500, so as to switch the conducting state in the flow channel cavity 14, thereby switching the connecting state of the water supply pipeline 500.

[0039] The valve core 2 can be movably installed in the valve body 1, with a part of the valve core 2 located in the flow channel cavity 14 and the other part located in the expansion cavity 15, wherein the valve core 2 can be moved relative to the valve body 1 to change the ratio of the part of the valve core 2 in the flow channel cavity 14 to the part in the expansion cavity 15, thereby blocking the flow channel cavity 14 through 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 connected 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 provided in the expansion chamber 15. The expansion member 4 is suitable for pushing the valve core 2 to move after being wetted with water and causing the valve core 2 to disconnect the water inlet channel 131 and the water outlet channel 132. The expansion force of the expansion member 4 can be used to push the valve core 2, and when the valve core 2 is pushed to move to the target position in the channel chamber 14, the water inlet channel 131 and the water outlet channel 132 can be disconnected through the valve core 2. Among them, the expansion member 4 can be set as an expansion cotton, which has the function of absorbing water and expanding, and the wet water volume of the expansion cotton can be increased by 100%, thereby enabling the expansion member 4 to effectively drive the valve core 2 when wetted with water.

[0041] In this way, when the valve body 1 is in a space where water may overflow, before the overflow, the equipment supplies water through the water supply pipe 500, and the water inlet channel 131 is connected with the water outlet channel 132 through the channel cavity 14. When water overflow occurs during the water supply process of the water supply pipe 500, the overflow can enter the expansion cavity 15 through the overflow inlet 16. The expansion member 4 is located in the expansion cavity 15 and expands after being wetted with water. At this time, the expansion cotton is pressed against the valve core 2 and can push the valve core 2 to move toward the channel cavity 14. After the valve core 2 disconnects the water inlet channel 131 from the water outlet channel 132, the water supply pipe 500 stops supplying water. At this time, the water supply pipe 500 can avoid continuous water supply and cause uncontrolled overflow, thereby ensuring the safety of the water supply of the equipment.

[0042] According to the anti-overflow valve 100 of the embodiment of the present invention, the anti-overflow valve 100 is arranged 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 is wetted with water, so that no water flows between the water inlet channel 131 and the water outlet channel 132, and then the water supply pipeline 500 stops supplying water, thereby effectively solving the problem of water supply overflow, improving the safety of water supply, and avoiding the occurrence of overflow accidents. The anti-overflow valve 100 has a simple structure and is easy to install.

[0043] In some embodiments, a valve cover 12 is disposed in the valve body 1, and the valve cover 12 divides the inner cavity of the valve body 1 into a flow channel cavity 14 and an expansion cavity 15. Figure 2 and Figure 3 As shown, the valve cover 12 is installed in the valve body 1 and separates the valve body 1 into a flow channel cavity 14 and an expansion cavity 15 spaced apart in the up and down directions, wherein the valve body 1 and the valve cover 12 can be formed separately, and the valve cover 12 jointly defines the flow channel cavity 14 and the expansion cavity 15 after being installed in the valve body 1, thereby greatly reducing the molding difficulty of the valve body 1 and reducing the setting cost.

[0044] Among them, the valve core 2 can be movably inserted into the valve cover 12, so that the valve cover 12 and the valve body 1 are installed and fixed to form an integral structure. When the valve core 2 moves in the valve body 1, the valve core 2 is inserted into the valve cover 12 and sealed with the valve cover 12, so that during the movement of the valve core 2, there will be no water leakage from the insertion hole of the valve core 2. The structure is simple and the setting is convenient, and the sealing requirement for the movement of the valve core 2 is low.

[0045] In some embodiments, the valve core 2 includes a valve stem 21 and a plug 22. The valve stem 21 includes a rod body 212 and a disk body 211. The rod body 212 is penetrated through the valve cover 12. One end of the rod body 212 is connected to the disk body 211 and the other end is connected to the plug 22. The disk body 211 is located in the expansion chamber 15 and presses against the expansion member 4. The plug 22 is located in the flow channel chamber 14. The disk body 211 is suitable for driving the plug 22 to disconnect the connection between the water inlet channel 131 and the water outlet channel 132 through the rod body 212. In this way, when overflow occurs, the expansion member 4 presses against the disk body 211 and with the expansion of the expansion member 4, the disk body 211 drives the rod body 212 to move toward the flow channel chamber 14, thereby enabling the plug 22 to block the flow channel chamber 14, cut off the connection between the water inlet channel 131 and the water outlet channel 132, and stop the water supply.

[0046] Among them, the outer diameter of the disc body 211 is larger than the outer diameter of the rod body 212, and the disc body 211 forms a larger contact surface on the side facing the expansion member 4, so that when the expansion member 4 expands, the expansion member 4 can press against the contact surface of the disc body 211, so as to effectively push the disc body 211 toward the direction close to the flow channel cavity 14 through the contact surface, thereby driving the plug 22 to move relative to the flow channel cavity 14, thereby realizing the function of switching water flow.

[0047] Specifically, Figure 2 and Figure 3 As shown, the bottom of the disc body 211 is pressed against 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. Figure 2 The water supply pipeline 500 is in a non-overflowing state, the expansion member 4 is not wetted with water, has a small volume, and the plug 22 is spaced apart from the top wall of the flow channel cavity 14. Figure 3 The water supply pipeline 500 is shown in an overflowing state, the expansion member 4 is wetted with water, and its volume increases to push the disc body 211 upward, and the disc body 211 drives the plug 22 to move upward, and makes the plug 22 press upward against the top wall of the flow channel cavity 14, thereby realizing the cutting off of the water flow and playing a role in preventing continuous overflow.

[0048] In some embodiments, the anti-overflow valve 100 further includes a sealing member 3, which is sleeved outside the rod body 212, and the sealing member 3 is sealed with the valve cover 12 and the valve body 1, that is, the sealing member 3 can be in elastic contact with the inner peripheral wall of the rod body 212, and at the same time, the outer peripheral wall of the sealing member 3 can be sealed against the valve body 1, and as shown in FIG. Figure 2 and Figure 3As shown, the seal 3 and the sealing cover are distributed along the axial direction of the rod body 212, and the seal 3 can be sealed and pressed against the sealing cover in the axial direction. In this way, when the rod body 212 moves relative to the sealing cover, the flow channel cavity 14 and the expansion cavity 15 are always in a sealed state, which can prevent the water flow in the flow channel cavity 14 from entering the expansion cavity 15 to act on the expansion member 4, thereby ensuring the reliability of overflow cut-off.

[0049] In the specific installation, a sealing boss 121 and a sealing groove 31 can be provided on the sides of the sealing member 3 and the sealing cover facing each other for plug-in matching to improve the sealing effect. Figure 2 and Figure 3 As shown, a sealing groove 31 is formed at the bottom of the seal 3, and at the same time, a sealing boss 121 is formed on the upper side of the sealing cover. The sealing boss 121 is inserted upward into the sealing groove 31, and the sealing boss 121 and the sealing groove 31 can be constructed as an annular structure 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, so that the plug 22 can have a certain elastic buffering ability, that is, when the plug 22 is pressed against the top of the flow channel cavity 14, the two can be in elastic pressing contact, which can avoid rigid contact between the plug 22 and the valve body 1 and avoid structural damage. At the same time, after the plug 22 contacts the top of the flow channel cavity 14, the plug 22 can be elastically deformed to fill the contact gap between the two and increase the sealing effect, thereby well avoiding the problem of loose sealing of the plug 22 and ensuring the accuracy of cutting off the water flow.

[0051] Specifically, the plug 22 may 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, the valve cover 12 is located between the upper cover 13 and the valve seat 11, and the valve cover 12 and the upper cover 13 define a flow channel cavity 14, and the valve cover 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 cover 12 can be installed between the two first, so that the three structural parts are relatively fixed, thereby defining the flow channel cavity 14 and the expansion cavity 15, thereby, each component of the valve body 1 can be formed separately, which is conducive to reducing the difficulty of molding the valve body 1 as a whole and reducing the processing cost.

[0053] Specifically, Figure 2 and Figure 3As shown, the valve core 2 can be first fixed to the valve cover 12, and then the valve cover 12 and the upper cover 13 can be relatively fixed, so that the flow channel cavity 14 is defined between the valve cover 12 and the upper cover 13, and the water inlet flow channel 131 and the water outlet flow channel 132 are both formed on the valve cover 12, so that 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 water inlet flow channel 131, and then flows out from the flow channel cavity 14 toward the water outlet flow channel 132. At the same time, the valve seat 11 is formed with a space open upward, and the upper cover 13 is installed on the upper part of the valve seat 11. The valve seat 11 and the bottom of the valve cover 12 and the bottom of the upper cover 13 jointly define an expansion cavity 15, wherein an overflow inlet 16 is formed between the valve seat 11 and the upper cover 13, thereby forming an integral anti-overflow valve 100 with a simple structure and convenient installation.

[0054] In some embodiments, a sealing port 133 is formed at the connection point between the water inlet channel 131 or the water outlet channel 132 and the channel cavity 14, and the valve core 2 is suitable for sealing the sealing port 133 to disconnect the water inlet channel 131 or the water 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 sealing port 133 to achieve the closure of the sealing port 133.

[0055] That is to say, the blocking port 133 can be set at the outlet end of the water inlet channel 131, so that the plug 22 blocks the outlet end of the water inlet channel 131, so that the water inlet channel 131 no longer supplies water to the channel cavity 14 and the water outlet channel 132, thereby realizing the water path cutting off; alternatively, the blocking port 133 can be set at the inlet end of the water outlet channel 132, so that the plug 22 blocks the inlet end of the water outlet channel 132, so that the water in the channel cavity 14 no longer flows to the water outlet channel 132, thereby realizing the water path cutting off. The structure is simple and the setting method is flexible and optional.

[0056] Specifically, Figure 2 and Figure 3 As shown, the blocking port 133 is arranged at the outlet end of the water inlet channel 131 and is located at the upper end of the valve core 2. In this way, when the valve core 2 moves upward, the blocking 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 extension directions of the water inlet channel 131 and the water outlet channel 132 are the same and both intersect with the opening direction of the blocking port 133. In other words, the valve core 2 moves along the direction intersecting with the extension directions of the water inlet channel 131 and the water outlet channel 132 to achieve the closure of the blocking port 133. The structure is simple and is conducive to achieving effective water cut-off.

[0058] Specifically, Figure 2 and Figure 3As shown, the water inlet channel 131 is arranged on the right side of the upper cover 13, and the water outlet channel 132 is arranged on the left side of the upper cover 13, and the extension direction of the water inlet channel 131 and the water outlet channel 132 is the same, both extending in the left-right direction, and the blocking port 133 is connected to the right end of the water outlet channel 132 and is constructed to open downward relative to the water outlet channel 132. Extend, so that when the valve core 2 moves toward the blocking port 133, the blocking port 133 can be effectively closed, and the water flow pressure in the water inlet channel 131 will not directly act on the plug 22 of the blocking port 133, as shown in FIG. Figure 2 and Figure 3 As shown in , after the water flow in the water inlet channel 131 enters the channel cavity 14 , a spoiler surface is formed on the right side of the plugging port 133 , which can reduce the water flow force in the water inlet channel 131 and ensure the stability of the plug 22 .

[0059] In some embodiments, the extension direction of the water inlet channel 131 and the water outlet channel 132 is the same and both are 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 water inlet channel 131 and the water outlet channel 132, so that the valve core 2 can directly act on the connection between the water inlet channel 131 and the water outlet channel 132, reducing the difficulty of the plug 22 to cut off the water flow, and also facilitating more accurate water flow cutting.

[0060] Specifically, Figure 2 and Figure 3 As shown, the water inlet channel 131 and the water outlet channel 132 can be extended in the left-right direction as shown in the figure. At the same time, the valve core 2 is arranged below the water inlet channel 131 and the water outlet channel 132, and the valve core 2 moves in the up and down directions. The sealing port 133 at the inlet end of the water outlet channel 132 is located in the movement direction of the valve core 2. In this way, when the valve core 2 moves upward, it can move to the connecting point of the water inlet channel 131 and the water 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 spaced apart and distributed in sequence 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 play the role of overflow entry, 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 inlets 16 at the corresponding position, that is, when overflow occurs in a partial area, the water can be effectively cut off, thereby improving the accuracy of overflow control.

[0062] Or, the overflow inlet 16 is constructed as an annular opening, the overflow inlet 16 is distributed around the expansion chamber 15, and the overflow inlet 16 extends along the circumference of the expansion chamber 15, that is, when the anti-overflow valve 100 is in an overflow environment, the annular overflow inlet 16 at each position on the circumference of the expansion chamber 15 can allow overflow water 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, that is, when overflow occurs in a partial area, the water can be effectively cut off, thereby improving the accuracy of overflow control. Among them, the overflow inlet 16 is set as an annular opening, which can be defined and formed by the connection between the valve seat 11 and the upper cover 13, and there is no need to process the overflow inlet 16 separately, which is conducive to reducing the setting cost.

[0063] In some embodiments, a limiting groove 111 is further provided in the valve body 1, and 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, and the first direction intersects with the movement direction of the valve core 2. Thus, the expansion member 4 can be effectively limited in the valve body 1, thereby avoiding the instability of the position of the expansion member 4 that leads to the inability to effectively push 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 directions, and the first direction can be set to form a certain angle with the up and down directions. For example, if the first direction is along the horizontal direction, that is, the limit groove 111 can limit the expansion member 4 in the left and right directions, ensuring that the expansion member 4 and the valve core 2 are distributed opposite to each other in the up and down directions, ensuring that the expansion member 4 can effectively push the valve core 2 to move toward the blocking port 133.

[0065] Specifically, Figure 2 and Figure 3 As shown, a limiting groove 111 is formed at the bottom of the expansion chamber 15, and the limiting groove 111 is open upward. The bottom of the expansion member 4 is located in the limiting groove 111, and 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 be offset in the left and right directions and will not be able to face 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] The present invention also provides a cooking device 1000 .

[0067] A cooking device 1000 according to an embodiment of the present invention comprises an equipment body 200 and an anti-overflow valve 100 of any one of the above-mentioned embodiments, wherein a separated installation space 201 and a cooking space are formed in the equipment body 200, wherein electrical components are installed in the installation space 201, and a water box 300 and a water supply pipeline 500 are also provided in the installation space 201, wherein the water supply pipeline 500 is used to connect a water source to the water box 300, and the anti-overflow valve 100 is arranged in the installation space 201, and an inlet channel 131 and an outlet channel 132 are connected in series in the water supply pipeline 500, thereby, when water is actively supplied to the water box 300 through the water supply pipeline 500, if the water box 300 overflows in the installation space 201, the anti-overflow valve 100 can actively cut off the water supply pipeline 500 to prevent the overflow of the water box 300 from damaging the electrical components in the installation space 201.

[0068] The cooking device 1000 may be a steam oven, a mounting space 201 is formed on the top of the steam oven, and the cooking space is located below the mounting space 201. A heating element and a cooking fan may be arranged in the cooking space, and the cooking fan may blow the airflow near the heating element into the entire cooking space to heat the food in the cooking space. Specifically, a driving motor and a control circuit board may be arranged in the mounting space 201, and the control circuit board may be provided with electronic components, etc., and the control circuit board may be electrically connected to the driving motor, the heating element, and the control panel of the steam oven, etc. At the same time, a steam generator may be arranged to transport steam into the cooking space, and a water box 300 may be arranged in the mounting space 201, and the water box 300 may be connected to the steam generator to supply water to the steam generator.

[0069] The water box 300 is connected to an external water source through a water supply pipe 500 so that the water source supplies water to the water box 300 through the water supply pipe 500. The water box 300 and the control circuit board, the drive motor, etc. are all located in the installation space 201. Therefore, if overflow occurs 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 avoid large-scale overflow caused by excessive water supply in the water box 300, thereby ensuring the safety of electrical components in the installation space 201.

[0070] In some embodiments, a control valve 400 is further provided in the water supply pipeline 500, and the control valve 400 is used to control the on-off of the water supply pipeline 500, so as to actively control the water supply pipeline 500 to be opened or disconnected through the control valve 400, that is, when the water box 300 is supplying water normally, the control valve 400 can be used to actively switch on and off. The control valve 400 is located upstream of the anti-overflow valve 100 in the water supply pipeline 500, that is, the control valve 400 and the anti-overflow valve 100 are connected in series in the water supply pipeline 500, thereby, when the control valve 400 cannot normally control the flow state of the water supply pipeline 500, the anti-overflow valve 100 can be used to perform anti-overflow control to improve the safety of water supply.

[0071] That is to say, when the control valve 400 fails to control, for example, the control valve 400 fails and cannot actively close the water supply pipe 500, the water supply pipe 500 continues to supply water to the water box 300. At this time, the water in the water box 300 overflows into the installation space 201, and part of the water enters the expansion chamber 15, so that the expansion member 4 pushes the valve core 2 to disconnect the flow channel chamber 14, thereby controlling the water supply pipe 500 to stop supplying water, thereby ensuring the safety of water supply.

[0072] Specifically, during actual installation, if Figure 4 As shown, the anti-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, after the water in the water box 300 is full, the water can overflow to the anti-overflow valve 100 and enter into the expansion chamber 15, thereby improving the accuracy of the anti-overflow valve 100 in controlling the water supply pipeline 500, thereby cutting off the water source to avoid further overflow and ensuring the internal safety of the cooking device 1000.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

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

Claims

1. An anti-overflow valve, characterized in that: include: A valve body (1), wherein a flow channel cavity (14) and an expansion cavity (15) are formed in the valve body (1), the valve body (1) is provided with a water inlet flow channel (131) and a water outlet flow channel (132) respectively connected to the flow channel cavity (14), and the valve body (1) is also provided with an overflow inlet (16) connected to the expansion cavity (15); A valve core (2), the valve core (2) being movably mounted in the valve body (1), a portion of the valve core (2) being located in the flow channel cavity (14) and another portion of the valve core (2) being located in the expansion cavity (15); An expansion member (4), the expansion member (4) being arranged in the expansion chamber (15), the expansion member (4) being suitable for pushing the valve core (2) to move after being wetted with water and causing the valve core (2) to disconnect the water inlet flow channel (131) and the water outlet flow channel (132).

2. The anti-overflow valve according to claim 1, characterized in that: A valve cover (12) is provided in the valve body (1), and the valve cover (12) divides the inner cavity of the valve body (1) into a flow channel cavity (14) and an expansion cavity (15), and the valve core (2) is movably arranged in the valve cover (12).

3. The anti-overflow valve according to claim 2, characterized in that: The valve core (2) comprises a valve stem (21) and a plug (22); the valve stem (21) comprises a rod body (212) and a disk body (211); the rod body (212) is inserted into the valve cover (12); one end of the rod body (212) is connected to the disk body (211) and the other end is connected to the plug (22); The disc body (211) is located in the expansion chamber (15) and is pressed against the expansion member (4), the plug (22) is located in the flow channel chamber (14), and the disc body (211) is suitable for driving the plug (22) through the rod body (212) to disconnect the connection between the water inlet flow channel (131) and the water outlet flow channel (132).

4. The anti-overflow valve according to claim 3, characterized in that: It also comprises a sealing member (3), wherein the sealing member (3) is sleeved outside the rod body portion (212), and the sealing member (3) is in sealing cooperation with the valve cover (12) and the valve body (1).

5. The anti-overflow valve according to claim 3, characterized in that: The plug (22) is configured as an elastic sealing element (3).

6. The anti-overflow valve according to claim 2, characterized in that: The valve body (1) comprises 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); and the valve cover (12) and the valve seat (11) define the expansion cavity (15).

7. The anti-overflow valve according to claim 1, characterized in that: The water inlet flow channel (131) or the water outlet flow channel (132) is formed with a blocking port (133) at a connection point with the flow channel cavity (14), and the valve core (2) is suitable for blocking the blocking port (133) to disconnect the water inlet flow channel (131) or the water outlet flow channel (132) from the flow channel cavity (14).

8. The anti-overflow valve according to claim 7, characterized in that: The water inlet channel (131) and the water outlet channel (132) extend in the same direction and both intersect with the opening direction of the blocking opening (133).

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

10. The anti-overflow valve according to claim 1, characterized in that: There are a plurality of overflow inlets (16), and the plurality of overflow inlets (16) are distributed in sequence and spaced apart in the circumferential direction of the expansion chamber (15); Alternatively, the overflow inlet (16) is constructed as an annular opening, and the overflow inlet (16) is distributed around the expansion chamber (15).

11. The anti-overflow valve according to claim 1, characterized in that: A limiting groove (111) is also provided in the valve body (1), and 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), wherein the first direction intersects with a movement direction of the valve core (2).

12. A cooking device, characterized in that: The invention comprises an equipment body (200) and an anti-overflow valve according to any one of claims 1 to 11, wherein the equipment body (200) is formed with a separate installation space (201) and a cooking space, wherein electrical components are installed in the installation space (201), and wherein a water box (300) and a water supply pipeline (500) are also provided in the installation space (201), wherein the water supply pipeline (500) is used to connect a water source to the water box (300), wherein the anti-overflow valve is provided in the installation space (201), and wherein the water inlet channel (131) and the water outlet channel (132) are connected in series in the water supply pipeline (500).

13. The cooking device according to claim 12, characterized in that The water supply pipeline (500) is also provided with a control valve (400), the control valve (400) being used to control the on-off 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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