Anti-siphon waterway assembly and cooking equipment with steaming function

Abstract

The utility model relates to an anti-siphon water path assembly and cooking equipment with a steaming function. The anti-siphon water path assembly comprises a water tank, a water inlet and a water outlet, a water pump; the three-way connecting piece comprises a first connecting pipe, a second connecting pipe and a third connecting pipe which are communicated with one another, the first connecting pipe is communicated with the water tank, the second connecting pipe is communicated with a water inlet of the water pump, and the pipe diameter of the first connecting pipe is larger than or equal to that of the second connecting pipe; the passing limiting piece is connected to the third connecting pipe in a sealed mode; a through hole is formed in the communication limiting piece, the through hole is located above the first connecting pipe and the second connecting pipe, the through hole is located above the highest water level of the water tank or flush with the highest water level of the water tank, the hole diameter of the through hole is obviously smaller than the pipe diameter of the second connecting pipe, and the third connecting pipe is communicated with the atmosphere only through the through hole. When the water pump stops working, water in the water tank stops flowing outwards, the water in the water tank can be prevented from being pumped out without control, and the water pump is convenient for a user to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking equipment with steaming function, in particular to a siphon-proof water path assembly and cooking equipment with steaming function. BACKGROUND

[0002] The cooking equipment with steaming function such as steam oven and steam oven can generate high-temperature steam by electrically heating water to steam food. The cooking equipment has a water tank, a water pump and a steam generator. The water inlet of the water pump is connected with the water outlet of the water tank. The water pump pumps water in the water tank to the steam generator during work. The steam generator heats and vaporizes water into high-temperature steam during work. When the water in the steam generator rises to a set water level, the water pump stops working. However, the water pump is a direct-current diaphragm pump, which cannot completely seal and block the water path. When the water pump stops working, the water path is full of water, forming a siphon pipe. Due to the siphon effect, the water in the water tank will continuously flow into the steam generator through the siphon pipe, eventually leading to uncontrolled pumping of water in the water tank, which is inconvenient to use. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a siphon-proof water path assembly and cooking equipment with steaming function aiming at the above problems.

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

[0005] A siphon-proof water path assembly, comprising:

[0006] a water tank;

[0007] a water pump;

[0008] a three-way connector, comprising a first connecting pipe, a second connecting pipe and a third connecting pipe which are in communication with each other, the first connecting pipe is in communication with the water tank, the second connecting pipe is in communication with the water inlet of the water pump, and the pipe diameter of the first connecting pipe is greater than or equal to the pipe diameter of the second connecting pipe; and

[0009] a limiting member which is sealingly connected to the third connecting pipe, the limiting member is provided with a through hole, the through hole is located above the first connecting pipe and the second connecting pipe, and the through hole is located above or flush with the highest water level of the water tank, the hole diameter of the through hole is significantly smaller than the pipe diameter of the second connecting pipe, and the third connecting pipe is in communication with the atmosphere only through the through hole.

[0010] The siphon-proof water path assembly has at least the following beneficial effects:

[0011] In the anti-siphon waterway assembly, although a small amount of air enters the tee connector through the through hole during the operation of the water pump, the water pump can still operate normally because the diameter of the through hole is significantly smaller than the diameter of the second connecting pipe. Because the through hole is located above the first connecting pipe and the second connecting pipe and the third connecting pipe is in communication with the atmosphere through the through hole, the through hole destroys the siphon condition of the entire waterway to achieve the anti-siphon effect. When the water pump stops operating, the water in the water tank stops flowing out, preventing the water in the water tank from being uncontrollably pumped out, and facilitating the use of the user.

[0012] In addition, generally, the water pump is arranged at a lower position, and the waterway is arranged to pass through the upper portion of the water tank, i.e., a portion of the waterway is located at a higher position, as shown in the drawings. In the anti-siphon waterway assembly, the tee connector is arranged between the water tank and the water pump, which enables the tee connector to be directly arranged at the upper portion of the water tank. In this way, the third connecting pipe does not need to be made very long, and the through hole can be located at the highest position of the entire waterway to destroy the siphon condition of the entire waterway, which is beneficial to reducing the size of the third connecting pipe and thus reducing the space occupied by the anti-siphon waterway assembly.

[0013] In one of the embodiments, the diameter of the through hole is D, and D satisfies D≤0.32 mm.

[0014] In this way, the amount of air entering the tee connector during the operation of the water pump can be reduced, which is beneficial to ensuring the normal operation of the water pump.

[0015] In one of the embodiments, D satisfies D≥0.20 mm.

[0016] In this way, the negative influence of the surface tension of water on the anti-siphon effect of the tee connector is small, which can ensure the anti-siphon effect of the tee connector.

[0017] In one of the embodiments, the diameter of the third connecting pipe is greater than the diameter of the second connecting pipe.

[0018] In this way, the portion of the third connecting pipe located below the limiting member can accommodate more water, which is beneficial to preventing water from gushing out through the through hole during the operation of the water pump.

[0019] In one of the embodiments, the third connecting pipe comprises a rigid pipe segment and an elastic pipe segment arranged in sequence from top to bottom, the elastic pipe segment is fitted on the rigid pipe segment in an interference fit, and the limiting member is sealingly connected to the elastic pipe segment.

[0020] In this way, the elastic pipe segment can be pulled out of the rigid pipe segment to detach the elastic pipe segment and the limiting member, which facilitates the removal and cleaning of the elastic pipe segment and the limiting member.

[0021] In one of the embodiments, the elastic pipe segment is fitted on the limiting member in an interference fit.

[0022] In this way, the limiting member can be conveniently taken out of the elastic pipe segment, and the limiting member can be conveniently cleaned or replaced, or the size of the through hole can be increased with the aid of a tool.

[0023] In one of the embodiments, the elastic pipe segment comprises a pipe wall and a supporting portion protruding inwardly from the pipe wall along the horizontal direction, and the top side of the supporting portion is entirely attached to the bottom side of the limiting member.

[0024] In this way, during the assembly of the anti-siphon waterway assembly, the limiting member can be inserted into the pipe wall and pushed to be attached to the supporting portion, so that the stable interference connection between the limiting member and the elastic pipe segment can be ensured, and the assembly between the limiting member and the elastic pipe segment can be conveniently completed.

[0025] In one of the embodiments, the top side of the supporting portion is planar, and the bottom side of the limiting member is planar.

[0026] In this way, the attachment between the bottom side of the limiting member and the top side of the supporting portion can be conveniently achieved, and the assembly between the limiting member and the elastic pipe segment can be conveniently completed.

[0027] In one of the embodiments, the elastic pipe segment is a silica gel member.

[0028] In this way, the surface of the elastic pipe segment is convenient for the interference connection and disassembly between the elastic pipe segment and the rigid pipe segment. Moreover, the elastic pipe segment itself does not contain harmful substances, and has good corrosion resistance to various chemical substances, which is beneficial to prevent the water in the waterway from being polluted. In addition, the surface of the elastic pipe segment is not easy to breed bacteria, which is beneficial to ensure the hygiene of the water.

[0029] The application also provides a cooking device with a steaming function, which comprises:

[0030] a steam generator; and

[0031] The anti-siphon waterway assembly described above, the water outlet of the water pump is in communication with the steam generator.

[0032] The cooking device with a steaming function has at least the following beneficial effects:

[0033] In the cooking device with the steaming function, although a small amount of air enters the three-way connector through the through hole during the operation of the water pump, the water pump can still normally pump water because the aperture of the through hole is significantly smaller than the diameter of the second connecting pipe, so as to normally supply water to the steam generator. Because the through hole is located above the first connecting pipe and the second connecting pipe and the third connecting pipe is in communication with the atmosphere through the through hole, the through hole destroys the siphon condition of the entire water path to achieve the anti-siphon effect. When the water pump stops working, the water in the water tank stops flowing outwards, which can prevent the water in the water tank from being uncontrollably pumped dry, facilitates the use of the user, can prevent excessive water from overflowing from the steam generator into the inner container of the cooking device, and ensures the normal working of the cooking device.

[0034] In addition, generally, the water pump is arranged at a lower position, and the water path is arranged to pass through the upper portion of the water tank, that is, a part of the water path is located at a higher position, as shown in the drawings. In the anti-siphon water path assembly, the three-way connector is arranged between the water tank and the water pump, which makes the three-way connector can be directly arranged at the upper portion of the water tank, so that the third connecting pipe does not need to be made too long, and the through hole can be located at the highest position of the entire water path to destroy the siphon condition of the entire water path, which is beneficial to reduce the size of the third connecting pipe, thereby reducing the space occupied by the anti-siphon water path assembly, and is beneficial to reduce the size of the cooking device. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 A perspective view of an anti-siphon water path assembly according to an embodiment of the present application;

[0036] Figure 2 A perspective view of part of the anti-siphon water path assembly shown in the drawings; Figure 1

[0037] A perspective view of part of the anti-siphon water path assembly shown in the drawings; Figure 3 Figure 2 A perspective view of part of the anti-siphon water path assembly shown in the drawings;

[0038] Figure 4 A longitudinal sectional view of the structure shown in the drawings; Figure 2

[0039] A longitudinal sectional view of the structure shown in the drawings; Figure 5 Figure 4 A longitudinal sectional view of the structure shown in the drawings;

[0040] Figure 6 A perspective view of a cooking device with a steaming function according to an embodiment of the present application.

[0041] REFERENCE SIGNS:

[0042] ​​1, water tank; 2, water pump; 3, three-way connector; 31, first connecting pipe; 32, second connecting pipe; 33, third connecting pipe; 331, elastic pipe section; 3311, pipe wall; 3312, support part; 332, rigid pipe section; 4, limiting part; 41, through hole. DETAILED DESCRIPTION

[0043] In order to make the above objectives, characteristics and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those described herein without departing from the spirit of the present application. It is therefore intended that the present application not be limited to the embodiments disclosed for purposes of disclosure.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0045] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0046] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Also, a first feature "over", "above" and "on top of" a second feature can be directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature "under", "below" and "underneath" a second feature can be directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0049] Referring to Figures 1 to 5 , the present application first provides an anti-siphon waterway assembly, which comprises a water tank 1, a water pump 2, a three-way connecting piece 3 and a limiting piece 4. The three-way connecting piece 3 comprises a first connecting pipe 31, a second connecting pipe 32 and a third connecting pipe 33 which are in communication with each other, the first connecting pipe 31 is in communication with the water tank 1, the second connecting pipe 32 is in communication with the water inlet of the water pump 2, and the pipe diameter of the first connecting pipe 31 is greater than or equal to the pipe diameter of the second connecting pipe 32. The limiting piece 4 is sealingly connected to the third connecting pipe 33, and the limiting piece 4 is provided with a through hole 41, the through hole 41 is located above the first connecting pipe 31 and the second connecting pipe 32, and the through hole 41 is located above or flush with the highest water level of the water tank 1. The hole diameter of the through hole 41 is significantly smaller than the pipe diameter of the second connecting pipe 32, and the third connecting pipe 33 is in communication with the atmosphere through and only through the through hole 41.

[0050] In the anti-siphon waterway assembly, during the operation of the water pump 2, although a small amount of air will enter the three-way connecting piece 3 through the through hole 41, because the hole diameter of the through hole 41 is significantly smaller than the pipe diameter of the second connecting pipe 32, the water pump 2 can still operate normally. Because the through hole 41 is located above the first connecting pipe 31 and the second connecting pipe 32 and the third connecting pipe 33 is in communication with the atmosphere through the through hole 41, the through hole 41 destroys the siphon condition of the entire waterway and plays an anti-siphon effect. When the water pump 2 stops working, the water in the water tank 1 stops flowing outwards, which can prevent the water in the water tank 1 from being uncontrollably pumped dry, and facilitates the use of the user.

[0051] Furthermore, water pump 2 is typically positioned at a lower location, and the water path is configured to pass through the upper part of water tank 1; that is, a portion of the water path is located at a higher location, such as... Figure 1 As shown. In this anti-siphon water circuit assembly, the T-connector 3 is located between the water tank 1 and the water pump 2. This allows the T-connector 3 to be directly installed on the upper part of the water tank 1. In this way, the third connecting pipe 33 does not need to be made very long, and the through hole 41 can be located at the highest point of the entire water circuit to destroy the siphon condition of the entire water circuit. This is beneficial to reducing the size of the third connecting pipe 33, thereby reducing the space occupied by the anti-siphon water circuit assembly.

[0052] This anti-siphon water circuit assembly can be applied to any device that needs to achieve a water pumping function, including but not limited to: steam ovens, steam ovens, and water tower water supply systems.

[0053] It is understandable that the pipe diameters mentioned above refer to the inner diameter.

[0054] See Figure 1 The first connecting pipe 31 and the second connecting pipe 32 are arranged sequentially along the horizontal direction, and both the first connecting pipe 31 and the second connecting pipe 32 are horizontally arranged, while the third connecting pipe 33 is vertically arranged. In other embodiments, the first connecting pipe 31, the second connecting pipe 32 and the third connecting pipe 33 may also be arranged at an angle.

[0055] The diameter of the through hole 41 is D. Preferably, in some embodiments, D satisfies: D≤0.32mm. This ensures that less air enters the tee connector 3 during the operation of the water pump 2, which is beneficial to ensuring the normal pumping of water by the water pump 2.

[0056] Preferably, in some embodiments, D satisfies: D≥0.20mm. This minimizes the negative impact of water surface tension on the anti-siphon effect of the tee connector 3, ensuring its anti-siphon performance.

[0057] Preferably, see Figure 1 and Figure 5 In some embodiments, the diameter of the third connecting pipe 33 is larger than that of the second connecting pipe 32. In this way, the portion of the third connecting pipe 33 below the flow restrictor 4 can hold more water, which helps to prevent water from gushing out through the through hole 41 during the operation of the water pump 2.

[0058] See Figures 1 to 5 In some embodiments, the third connecting pipe 33 includes a rigid pipe section 332 of an elastic pipe section 331 arranged sequentially from top to bottom. The elastic pipe section 331 is interference-fitted onto the rigid pipe section 332, and the limiting member 4 is sealed to the elastic pipe section 331. In this way, by pulling the elastic pipe section 331 out of the rigid pipe section 332, the elastic pipe section 331 and the limiting member 4 can be disassembled, making it convenient to remove and clean the elastic pipe section 331 and the limiting member 4.

[0059] Referring to Figures 2 to 5 In some embodiments, the elastic tube segment 331 is tightly sleeved on the limiting member 4. In this way, the limiting member 4 can be conveniently taken out of the elastic tube segment 331, so as to facilitate cleaning or replacement of the limiting member or to increase the size of the through hole 41 by means of a tool.

[0060] Referring to Figure 5 In some embodiments, the elastic tube segment 331 comprises a tube wall 3311 and a supporting portion 3312 protruding inwardly along the horizontal direction of the tube wall 3311, and the top side of the supporting portion 3312 is entirely attached to the bottom side of the limiting member 4. In this way, during assembly of the anti-siphon waterway assembly, the limiting member 4 is inserted into the tube wall 3311 and pushed to be attached to the supporting portion 3312, so as to ensure stable tight connection between the limiting member 4 and the elastic tube segment 331, and facilitate assembly between the limiting member 4 and the elastic tube segment 331.

[0061] Referring to Figure 5 The top side of the supporting portion 3312 is planar, and the bottom side of the limiting member 4 is planar. This facilitates attachment of the bottom side of the limiting member 4 to the top side of the supporting portion 3312, and facilitates assembly between the limiting member 4 and the elastic tube segment 331. In other embodiments, the top side of the supporting portion 3312 and the bottom side of the limiting member 4 can both be spherical.

[0062] Preferably, in some embodiments, the elastic tube segment 331 is a silica gel member. This makes the surface of the elastic tube segment 331, facilitates tight connection and disassembly between the elastic tube segment 331 and the rigid tube segment 332. Moreover, this makes the elastic tube segment 331 itself free of harmful substances, and has good corrosion resistance to a variety of chemical substances, which is conducive to preventing water in the waterway from being contaminated. In addition, this makes the surface of the elastic tube segment 331 not easy to breed bacteria, which is conducive to ensuring the hygiene of water.

[0063] In other embodiments, the elastic tube segment 331 can also be made of ethylene-propylene-diene rubber or natural rubber or silicone rubber.

[0064] In some embodiments, the limiting member 4 is adhesively attached to the third connecting tube 33, and the limiting member 4 can be located in the third connecting tube 33 or above the third connecting tube 33.

[0065] Exemplarily, the pipe diameter of the second connecting tube 32 is 4 mm, D=0.28 mm, and the flow rate of the water pump 2 is 500 ml / min under normal working conditions, and the pressure of the water pump 2 is 2 Bar.

[0066] Referring to Figure 6The cooking device with the steaming function comprises a steam generator and the anti-siphon waterway assembly, and the water outlet of the water pump 2 is communicated with the steam generator. In the cooking device with the steaming function, although a small amount of air enters the three-way connector 3 through the through hole 41 during the operation of the water pump 2, the water pump 2 can still normally pump water because the hole diameter of the through hole 41 is significantly smaller than the pipe diameter of the second connecting pipe 32, so as to normally supply water to the steam generator. Because the through hole 41 is located above the first connecting pipe 31 and the second connecting pipe 32 and the third connecting pipe 33 is communicated with the atmosphere through the through hole 41, the through hole 41 destroys the siphon condition of the entire waterway to achieve the anti-siphon effect. When the water pump 2 stops working, the water in the water tank 1 stops flowing outwards, so that the water in the water tank 1 can be prevented from being uncontrollably pumped dry, the user is facilitated to use, excessive water can be prevented from overflowing from the steam generator into the inner container of the cooking device, and the normal working of the cooking device is ensured.

[0067] In addition, generally, the water pump 2 is arranged at a lower position, and the waterway is arranged to pass through the upper portion of the water tank 1, that is, a part of the waterway is located at a higher position, as shown in the prior art. Figure 1 In the anti-siphon waterway assembly, the three-way connector 3 is arranged between the water tank 1 and the water pump 2, so that the three-way connector 3 can be directly arranged at the upper portion of the water tank 1. In this way, the third connecting pipe 33 does not need to be made very long, the through hole 41 can be located at the highest position of the entire waterway to destroy the siphon condition of the entire waterway, the size of the third connecting pipe 33 is beneficially reduced, the space occupied by the anti-siphon waterway assembly is beneficially reduced, and the size of the cooking device is beneficially reduced.

[0068] Exemplarily, the cooking device is a steaming oven or a steaming oven or a cooking oven.

[0069] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0070] The above-described embodiments only express several implementation manners of the present disclosure, the description is relatively specific and detailed, but it should not be understood as a limitation on the protection scope of the present disclosure. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the appended claims.

Claims

1. An anti-siphon waterway assembly, comprising: Comprising: a water tank (1); a water pump (2); a three-way connector (3) comprising a first connecting pipe (31), a second connecting pipe (32) and a third connecting pipe (33) in communication with each other, the first connecting pipe (31) being in communication with the water tank (1), the second connecting pipe (32) being in communication with a water inlet of the water pump (2), the pipe diameter of the first connecting pipe (31) being greater than or equal to the pipe diameter of the second connecting pipe (32); and a flow limiting member (4) sealingly connected to the third connecting pipe (33), the flow limiting member (4) being provided with a through hole (41), the through hole (41) being located above the first connecting pipe (31) and the second connecting pipe (32), and the through hole (41) being located above or flush with the highest water level of the water tank (1), the hole diameter of the through hole (41) being significantly smaller than the pipe diameter of the second connecting pipe (32), the third connecting pipe (33) being in communication with the atmosphere through and only through the through hole (41).

2. The anti-siphon waterway assembly of claim 1, wherein, The diameter of the through hole (41) is D, and D satisfies: D≤0.32mm.

3. The anti-siphon waterway assembly of claim 2, wherein, D satisfies: D≥0.20mm.

4. The anti-siphon waterway assembly of claim 1, wherein, The pipe diameter of the third connecting pipe (33) is greater than the pipe diameter of the second connecting pipe (32).

5. The anti-siphon waterway assembly of claim 1, wherein, The third connecting pipe (33) comprises a rigid pipe section (332) and an elastic pipe section (331) arranged in sequence from top to bottom, the elastic pipe section (331) being interference-fitted on the rigid pipe section (332), and the flow limiting member (4) being sealingly connected to the elastic pipe section (331).

6. The anti-siphon waterway assembly of claim 5, wherein, The elastic pipe section (331) is interference-fitted on the flow limiting member (4).

7. The anti-siphon waterway assembly of claim 6, wherein, The elastic pipe section (331) comprises a pipe wall (3311) and a support portion (3312) protruding inwardly from the pipe wall (3311) along the horizontal direction, and the top side of the support portion (3312) is entirely attached to the bottom side of the flow limiting member (4).

8. The anti-siphon waterway assembly of claim 7, wherein, The top side of the support portion (3312) is planar, and the bottom side of the flow limiting member (4) is planar.

9. The anti-siphon waterway assembly of claim 5, wherein, The elastic pipe section (331) is a silica gel member.

10. A cooking apparatus having a steaming function, characterized by, Comprising: a steam generator; and The anti-siphon waterway assembly of any one of claims 1 to 9, a water outlet of the water pump (2) being in communication with the steam generator. ​

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