Floating micro-pressure valve mechanism, upper cover and cooking equipment

Abstract

The utility model discloses a floating micro-pressure valve mechanism, an upper cover and cooking equipment, the floating micro-pressure valve mechanism comprises a valve body provided with a first channel and a moving module, and a first gap is arranged between the moving module and the first channel in the radial direction of the first channel; the valve body is provided with a bearing part; in the steam conveying state, due to the fact that a channel of the first gap is small, certain micro-pressure heating work is kept below the valve body, the situation that steam output is affected due to complete sealing is avoided, and the cooking electric appliance plays a role in saving energy; when the internal pressure of the electric appliance is large, the moving module is pushed by the pressure to vertically move, so that the moving module is provided with a large gas conveying channel to be communicated with the upper part of the valve body, the steam exhaust space is enlarged, and redundant steam is exhausted out of the cooking equipment; according to the structure, the smaller exhaust channel or the larger exhaust channel can be correspondingly switched according to the air pressure, so that the cooking operation of the cooking electric appliance under a certain pressure is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of exhaust valve technology, specifically relating to a floating micro-pressure valve mechanism, a top cover, and a cooking device. Background Technology

[0002] Steaming equipment includes rice cookers and electric steamers, which steam food through their internal pots. During the steaming process, steam is generated, especially after a period of steaming. A large amount of liquid boiling at this point produces a significant amount of steam. This excess steam creates considerable pressure inside the pot, posing a safety hazard. Existing technologies incorporate pressure relief valves to release the generated steam and effectively prevent excessive pressure inside the pot, keeping it at a near-normal pressure. However, this near-normal pressure steaming process is not suitable for rapid cooking and also wastes energy, requiring more electricity for steaming. Therefore, it is necessary to develop a floating micro-pressure valve mechanism, a lid, and a steaming device. Utility Model Content

[0003] The purpose of this invention is to provide a floating micro-pressure valve mechanism, a top cover, and a cooking device to solve the aforementioned technical problems. During the operation of the cooking device, the internal pressure of the moving module increases, allowing steam to connect through the lower part of the valve body, the first gap, and the upper part of the valve body. When delivering steam, the smaller channel of the first gap maintains a certain micro-pressure for heating below the valve body, preventing complete sealing and thus avoiding affecting steam output, thereby achieving energy saving in the cooking device. When the internal pressure of the device is higher, the moving module moves vertically under pressure, providing a larger air supply channel that connects with the upper part of the valve body, increasing the exhaust space and discharging excess steam outside the cooking device. This structure can switch between a smaller or larger exhaust channel according to the air pressure, which is beneficial for the cooking device to perform cooking operations under certain pressure.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0005] A floating micro-pressure valve mechanism includes a valve body with a first channel and a movable module that is movably disposed within the first channel and moves according to the internal air pressure to adjust the air output.

[0006] In the radial direction of the first channel, a first gap is provided between the moving module and the first channel; the valve body is provided with a bearing part that restricts the moving module so that the first gap is kept in communication with the top of the valve body;

[0007] The moving module is internally connected to the first gap, the lower part of the valve body, and the upper part of the valve body. The first gap is continuously connected to the upper and lower parts of the valve body. A support unit is provided, and a first gap is established between the moving module and the first channel, ensuring that the first gap remains continuously connected to the upper and lower parts of the valve body, preventing complete sealing. During operation of the cooking equipment, the internal pressure of the moving module increases, allowing steam to flow through the lower part of the valve body, the first gap, and the upper part of the valve body. When steam is being delivered, the smaller channel of the first gap maintains a certain micro-pressure for heating the lower part of the valve body, preventing complete sealing that could affect steam output and thus saving energy. When the internal pressure is higher, the moving module moves vertically under pressure, providing a larger air delivery channel that connects to the upper part of the valve body, increasing the exhaust space and venting excess steam out of the cooking equipment. This structure allows for switching between a smaller or larger exhaust channel depending on the air pressure, facilitating cooking operations under specific pressure conditions.

[0008] Preferably, the moving module includes a module body and a connecting channel disposed within the module body. The connecting channel is connected to the first gap, the lower part of the valve body, and the upper part of the valve body. By providing the connecting channel, during the initial operation of the cooking equipment, steam below the valve body can be transported through the connecting channel to the first gap and the upper part of the valve body. Because the channel in the first gap is relatively small, a certain micro-pressure heating is maintained below the valve body, resulting in energy savings for the cooking appliance. When the internal pressure of the appliance is higher, the moving module moves, directly connecting the connecting channel to the upper part of the valve body, thereby increasing the exhaust space and discharging excess steam outside the cooking equipment. This structure allows for switching between a smaller or larger exhaust channel according to the air pressure, which is beneficial for the cooking appliance to perform cooking operations under certain pressure.

[0009] Preferably, the communication channel includes a second channel arranged along the axial direction of the module body and connected to the lower part of the valve body, and a first through hole arranged radially along the module body and connected to the second channel, wherein the first through hole is connected to the first gap.

[0010] In the initial state of the moving module, the axis of the first through hole faces the inner wall of the first channel. Initially, steam is sequentially transported through the lower part of the valve body, the second channel, the first through hole, the first gap, and the upper part of the valve body, maintaining a certain micro-pressure heating operation below the valve body, thus enabling the cooking appliance to achieve energy saving. When the pressure is higher, the moving module moves vertically, causing the axis of the first through hole to face upwards from the valve body, connecting the lower part of the valve body, the second channel, the first through hole, and the upper part of the valve body. This increases the exhaust space, allowing excess steam to be discharged from the cooking equipment. This structure allows for switching between smaller and larger exhaust channels according to the gas pressure, which is beneficial for the cooking appliance to perform cooking operations under certain pressure.

[0011] Preferably, the first through holes are arranged in a group, and the axis connecting the first through holes arranged in the group is perpendicular to the axis of the first channel. The grouped first through holes provide multiple areas that can communicate with the first gap or the valve body, thus providing multiple channels for steam to be discharged.

[0012] Preferably, the first through hole is located between the upper end of the module body and the middle part of the module body.

[0013] Preferably, the module body is provided with a limiting mechanism that cooperates with the bearing part and the lower end face of the valve body to restrict the axial movement of the moving module. The limiting mechanism prevents the moving module from excessively expanding axially within the first channel and thus dislodging it from the outside, improving the operational stability of the moving module.

[0014] Preferably, the limiting mechanism includes a first abutting block fixed above the module body and abutting against the bearing part to limit the minimum vertical stroke of the moving module, and a second abutting block disposed below the module body and abutting against the lower end face of the valve body to limit the maximum vertical stroke of the moving module;

[0015] The lower end face of the first contact block is connected to the second channel. This seals the upper part of the second channel with the first contact block, allowing airflow through the first through-hole to exit. The first contact block abuts against the supporting part, limiting the minimum stroke of the moving module, while the second contact block abuts against the lower end face of the valve body, limiting the maximum stroke of the moving module. When the moving module reaches its maximum stroke, the lower part of the first gap is blocked by the second contact block against the lower end face of the valve body, preventing steam from being transported only through the second channel and the first through-hole to the top of the valve body. This avoids the steam transport process from interfering with each other and affecting the steam transport process. This design effectively improves the operational stability of the moving module and prevents the moving module from detaching from the outside, thus affecting the operational stability of the cooking equipment.

[0016] Preferably, when projected along the axial direction of the first channel, the projection surface of the first contact block intersects with the bearing portion, and the projection surface of the second contact block intersects with the lower end surface of the valve body.

[0017] Preferably, a first fitting groove is provided below the module body, and the second abutting block is fitted into the first fitting groove. By fitting the second abutting block into the first fitting groove, the second abutting block is positioned below the module body. This connection method is simple and facilitates assembly.

[0018] Preferably, a first block is circumferentially arranged around the outer surface of the module body, and the first block is disposed between the upper end face of the module body and the upper end face of the first through hole. A gap exists between the first block and the valve body; this ensures a small first gap between the module body and the valve body in the radial direction, thereby guaranteeing that the cooking equipment operates under a certain pressure while maintaining a certain level of connectivity.

[0019] Preferably, the supporting part is a first column, which is axially oriented towards the first abutting block. One or more first columns are provided; in this technical solution, three first columns are equally spaced around the axis of the valve body. The projection surface of the first abutting block intersects with the first column; the upper end of the first column is spherical; the first column is provided so that the space above the valve body, except where the first column is located, is interconnected, thereby ensuring that the first gap remains continuously connected to the upper and lower parts of the valve body.

[0020] Preferably, one or more second blocks are vertically arranged on the outer surface of the module body, with the upper and lower ends of the second blocks abutting against the edges of the first block and the first fitting groove, respectively. The locations of the second blocks and the first through-holes do not intersect. This forms a closed frame around the first through-hole, allowing steam passing through it to exit along its axis and be transported along the first gap to the top of the valve body. This minimizes the transmission space and prevents rapid pressure release in the initial state.

[0021] A cover including a micro-pressure valve mechanism.

[0022] A cooking device, including a top cover.

[0023] This application achieves beneficial technical effects: During the operation of the cooking equipment, the internal pressure of the moving module increases, allowing steam to connect through the lower part of the valve body, the first gap, and the upper part of the valve body. When steam is being transported, the smaller channel of the first gap maintains a certain micro-pressure for heating below the valve body, preventing complete sealing and thus avoiding steam output issues, resulting in energy savings for the cooking equipment. Conversely, when the internal pressure is higher, the moving module moves vertically under pressure, providing a larger air supply channel that connects to the upper part of the valve body, increasing the exhaust space and discharging excess steam outside the cooking equipment. This structure allows for switching between a smaller or larger exhaust channel based on the air pressure, facilitating cooking operations under specific pressure conditions. Attached Figure Description

[0024] Figure 1 The diagram shown is a schematic of the upper cover structure;

[0025] Figure 2 The diagram shown is a top view of the top cover structure.

[0026] Figure 3 As shown Figure 2 A schematic diagram of the AA-direction cross-section structure;

[0027] Figure 4 The diagram shown is a top view of the micro-pressure valve mechanism.

[0028] Figure 5 As shown Figure 4 Schematic diagram of the BB-direction cross-section structure;

[0029] Figure 6 The figure shown is a three-dimensional structural diagram of the micro-pressure valve mechanism;

[0030] Figure 7 The image shows another schematic diagram of the three-dimensional structure of the micro-pressure valve mechanism;

[0031] Figure 8 The diagram shown is an exploded view of the micro-pressure valve mechanism.

[0032] Figure 9 The image shown is another schematic diagram of the exploded structure of the micro-pressure valve mechanism;

[0033] Figure 10 The diagram shows the structure used when the moving module moves to its maximum travel.

[0034] Figure Labels

[0035] 1-Valve body; 2-First channel; 3-Moving module; 4-First gap; 11-Bearing part; 31-Module body; 32-Connecting channel; 321-Second channel; 322-First through hole; 33-First contact block; 34-Second contact block; 311-First fitting groove; 35-First block; 36-Second block; 5-Top cover. Detailed Implementation

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0037] The technical solution of this utility model will be described in detail below with specific embodiments.

[0038] A floating micro-pressure valve mechanism includes a valve body 1 with a first channel 2 and a movable module 3 that is movably disposed within the first channel 2 and moves according to the internal air pressure to adjust the air output.

[0039] In the radial direction of the first channel 2, a first gap 4 is provided between the moving module 3 and the first channel 2; the valve body 1 is provided with a bearing part 11 that restricts the moving module 3 so that the first gap 4 is in communication with the top of the valve body 1;

[0040] The interior of the moving module 3 is connected to the first gap 4, the lower part of the valve body 1, and the upper part of the valve body 1. The first gap 4 is continuously connected to the top and bottom of the valve body 1. A bearing part 11 is provided, and the first gap 4 is provided between the moving module 3 and the first channel 2, so that the first gap 4 is continuously connected to the top and bottom of the valve body 1, avoiding the problem of complete sealing. During the operation of the cooking equipment, the internal pressure of the moving module 3 increases, allowing steam to be connected through the bottom of the valve body 1, the first gap 4, and the top of the valve body 1. When the steam is being transported, the small channel of the first gap 4 keeps the bottom of the valve body 1 under a certain micro-pressure for heating, and avoids complete sealing that would affect the steam output, thus enabling the cooking appliance to achieve energy saving. When the internal pressure of the appliance is large, the moving module 3 moves vertically under the pressure, giving the moving module 3 a larger air supply channel that connects with the top of the valve body 1, thereby increasing the exhaust space and discharging excess steam out of the cooking equipment. This structure can switch between a smaller or larger exhaust channel according to the air pressure, which is beneficial for the cooking appliance to perform cooking operations under a certain pressure.

[0041] The moving module 3 includes a module body 31 and a connecting channel 32 disposed within the module body 31. The connecting channel 32 is connected to the first gap 4, the lower part of the valve body 1, and the upper part of the valve body 1. By providing the connecting channel 32, during the initial operation of the cooking equipment, steam below the valve body 1 can be transported through the connecting channel 32 to the first gap 4 and the upper part of the valve body 1. Because the channel of the first gap 4 is relatively small, a certain micro-pressure heating operation is maintained below the valve body 1, resulting in energy saving for the cooking appliance. When the internal pressure of the appliance is higher, the moving module 3 moves, directly connecting the connecting channel 32 to the upper part of the valve body 1, thereby increasing the exhaust space and discharging excess steam outside the cooking equipment. This structure allows for switching between a smaller or larger exhaust channel according to the air pressure, which is beneficial for the cooking appliance to perform cooking operations under certain pressure.

[0042] The connecting channel 32 includes a second channel 321 arranged axially along the module body 31 and connected to the lower part of the valve body 1, and a first through hole 322 arranged radially along the module body 1 and connected to the second channel 321. The first through hole 322 is connected to the first gap 4.

[0043] In the initial state of the moving module 3, the first through hole 322 is oriented towards the inner wall of the first channel 2. Initially, steam is sequentially transported through the lower part of the valve body 1, the second channel 321, the first through hole 322, the first gap 4, and the upper part of the valve body 1, maintaining a certain micro-pressure heating operation below the valve body 1, thus enabling the cooking appliance to achieve energy saving. When the pressure is higher, the moving module 3 moves vertically, causing the first through hole 322 to oriented towards the upper part of the valve body 1, connecting the lower part of the valve body 1, the second channel 321, the first through hole 322, and the upper part of the valve body 1. This increases the exhaust space, allowing excess steam to be discharged from the cooking equipment. This structure allows for switching between smaller and larger exhaust channels according to the gas pressure, which is beneficial for the cooking appliance to perform cooking operations under certain pressure.

[0044] The first through holes 322 are arranged in a group, and the axis connecting the first through holes 322 arranged in the group is perpendicular to the axis of the first channel 2. The grouped first through holes 322 have multiple areas that can communicate with the first gap 4 or the valve body 1, so that steam has multiple channels for discharge.

[0045] Preferably, the first through hole 322 is provided in multiple ways, with a quantity of 3 or more.

[0046] The first through hole 322 is located between the upper end of the module body 31 and the middle part of the module body 31.

[0047] The module body 31 is provided with a limiting mechanism that cooperates with the bearing part 11 and the lower end face of the valve body 1 to limit the axial movement of the moving module 3. The limiting mechanism is provided to prevent the moving module from forming too much axial force in the first channel 2 and thus dislodging it from the outside, thereby improving the operational stability of the moving module 3.

[0048] The limiting mechanism includes a first abutting block 33 fixed above the module body 31 and abutting against the bearing part 11 to limit the lowest vertical stroke of the moving module 3, and a second abutting block 34 disposed below the module body 31 and abutting against the lower end face of the valve body 1 to limit the highest vertical stroke of the moving module 3.

[0049] The lower end face of the first contact block 33 is connected to the second channel 321. This seals the upper part of the second channel 321, allowing airflow through the first through hole 322 to exit. The first contact block 33 abuts against the supporting part 11, limiting the minimum stroke of the moving module 3. The second contact block 34 abuts against the lower end face of the valve body 1, limiting the maximum stroke of the moving module 3. When the moving module 3 reaches its maximum stroke, the second contact block 34 abuts against the lower end face of the valve body 1, blocking the lower part of the first gap 4. Steam can only be transported to the upper part of the valve body 1 through the second channel 321 and the first through hole 322, preventing the steam transport process from intersecting and affecting the steam transport process. This arrangement effectively improves the operational stability of the moving module 3 and prevents the moving module 3 from detaching from the outside, thus affecting the operational stability of the cooking equipment.

[0050] Projecting along the axial direction of the first channel 2, the projection surface of the first contact block 33 intersects with the bearing portion 11, and the projection surface of the second contact block 34 intersects with the lower end surface of the valve body 1.

[0051] A first fitting groove 311 is provided below the module body 31, and the second abutting block 34 fits into the first fitting groove 311. By fitting the first fitting groove 311 into the second abutting block 34, the second abutting block 34 is positioned below the module body 31. This connection method is simple and easy to assemble.

[0052] A first block 35 is circumferentially arranged around the outer surface of the module body 31, and the first block 35 is disposed between the upper end face of the module body 31 and the upper end face of the first through hole 322. There is a gap between the first block 35 and the valve body 1; so that there is a small first gap 4 between the module body 31 and the valve body 1 in the radial direction, thereby ensuring that the cooking equipment can operate under a certain pressure while maintaining a certain connection state.

[0053] The supporting part 11 is a first column, which is axially oriented towards the first abutting block 33. One or more first columns may be provided; in this technical solution, three first columns are equally spaced around the axis of the valve body. The projection plane of the first abutting block 33 intersects with the first column; the upper end of the first column is spherical; the provision of the first column ensures that there is a continuous space above the valve body except where the first column is located, thereby maintaining continuous communication between the first gap 4 and the upper and lower parts of the valve body 1.

[0054] One or more second blocks 36 are vertically arranged on the outer surface of the module body 31. The upper and lower ends of the second blocks 36 abut against the edges of the first block 35 and the first fitting groove 311, respectively. The locations of the second blocks 36 do not intersect with the locations of the first through holes 322. This forms a closed frame around the location of the first through hole 322, allowing steam passing through the first through hole 322 to be output along the axis of the first through hole 322 and transported along the first gap 4 to the top of the valve body 1. The transmission space is small, preventing rapid pressure loss in the initial state.

[0055] A top cover 5 includes a micro-pressure valve mechanism.

[0056] A steaming / cooking device includes a top cover. Specifically, the steaming / cooking device is a device used for steaming / cooking food, such as a rice cooker or an electric steamer.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0059] The embodiments of the floating micro-pressure valve mechanism, upper cover, and cooking equipment provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A floating micro-pressure valve mechanism, comprising a valve body (1) having a first channel (2) and a movable module (3) movably disposed within the first channel (2) and moving according to internal air pressure to adjust the air output, characterized in that, In the radial direction of the first channel (2), a first gap (4) is provided between the moving module (3) and the first channel (2); the valve body (1) is provided with a bearing part (11) that restricts the moving module (3) so that the first gap (4) is in communication with the top of the valve body (1); The interior of the moving module (3) is connected to the first gap (4), the lower part of the valve body (1), and the upper part of the valve body (1).

2. The micro-pressure valve mechanism according to claim 1, characterized in that, The moving module (3) includes a module body (31) and a connecting channel (32) disposed in the module body (31). The connecting channel (32) is connected to the first gap (4), the lower part of the valve body (1), and the upper part of the valve body (1).

3. The micro-pressure valve mechanism according to claim 2, characterized in that, The connecting channel (32) includes a second channel (321) arranged axially along the module body (31) and connected to the lower part of the valve body body (1), and a first through hole (322) arranged radially along the module body (1) and connected to the second channel (321). The first through hole (322) is connected to the first gap (4). In the initial state of the moving module (3), the first through hole (322) is oriented toward the inner wall of the first channel (2) in the axial direction.

4. The micro-pressure valve mechanism according to claim 3, characterized in that, The first through holes (322) are arranged in groups, and the axis line connecting the first through holes (322) arranged in groups is perpendicular to the axis of the first channel (2).

5. The micro-pressure valve mechanism according to claim 3, characterized in that, The first through hole (322) is located between the upper end of the module body (31) and the middle part of the module body (31).

6. The micro-pressure valve mechanism according to claim 2, characterized in that, The module body (31) is provided with a limiting mechanism that cooperates with the bearing part (11) and the lower end face of the valve body (1) to limit the axial movement of the moving module (3).

7. The micro-pressure valve mechanism according to claim 6, characterized in that, The limiting mechanism includes a first contact block (33) fixed above the module body (31) and abutting against the bearing part (11) to limit the vertical minimum stroke of the moving module (3), and a second contact block (34) disposed below the module body (31) and abutting against the lower end face of the valve body (1) to limit the vertical maximum stroke of the moving module (3). The lower end face of the first contact block (33) is connected to the second channel (321).

8. The micro-pressure valve mechanism according to claim 3, characterized in that, The outer surface of the module body (31) is circumferentially surrounded by a first block (35), which is located between the upper end face of the module body (31) and the upper end face of the first through hole (322).

9. A top cover (5), characterized in that, Includes the micro-pressure valve mechanism as described in any one of claims 1 to 8.

10. A cooking apparatus, characterized in that, Includes the top cover as described in claim 9.

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