Liquid material box and kitchen equipment with same

Abstract

The utility model provides a liquid material box and kitchen equipment with the same. The liquid material box comprises a box body, the box body is internally provided with a containing cavity, and a storage space for containing liquid materials is formed in the containing cavity; and the negative pressure prevention structure is arranged on the box body, the negative pressure prevention structure is provided with a conduction channel, and the containing cavity can be communicated with the atmosphere through the conduction channel. The problem that in the prior art, liquid cannot flow out due to the fact that negative pressure is formed when the liquid box extracts liquid is solved.

Description

Liquid container and kitchen equipment containing it Technical Field

[0001] This utility model relates to the field of kitchen equipment technology, and more specifically, to a liquid container and kitchen equipment having the same. Background Technology

[0002] Kitchen equipment frequently uses various condiments, such as cooking oil, sauces, and kettles. For ease of use, kitchen equipment typically includes liquid containers to store liquids, allowing for direct retrieval when needed. The structural design of these liquid containers directly affects the storage stability and ease of access for the liquids.

[0003] In existing technologies, liquid is extracted using a pumping structure. After the liquid is discharged, a negative pressure state is generated inside the liquid container. This negative pressure state not only hinders the smooth extraction of liquid and reduces pump efficiency, but may also cause deformation or even damage to the liquid container structure. Many liquid containers are designed with vents; however, large vents and complex vent valve designs can easily allow external contaminants such as dust, microorganisms, and small insects to enter the container, as these contaminants can seriously affect the quality and safety of the liquid.

[0004] No effective solution has yet been proposed to address the above issues. Summary of the Invention

[0005] The main objective of this invention is to provide a liquid container and a kitchen appliance incorporating it, in order to solve the problem in the prior art where the liquid container generates negative pressure when drawing out liquid, causing the liquid to be unable to flow out.

[0006] To achieve the above objectives, according to one aspect of the present invention, a liquid container is provided, comprising: a container body having an internal cavity for containing liquid; and an anti-negative pressure structure disposed on the container body, the anti-negative pressure structure having a conductive channel through which the cavity can be connected to the atmosphere.

[0007] Furthermore, the conductive channel is a through hole, which is located on the side wall of the box.

[0008] Furthermore, there are multiple through holes, and an array of multiple through holes is arranged on the top of the box.

[0009] Furthermore, the diameter of the through hole is D, where 0.2mm ≥ D ≥ 0.4mm.

[0010] Furthermore, the anti-negative pressure structure includes an anti-negative pressure valve, which includes a valve core and a valve body. The valve body forms a conduction channel, and at least a portion of the valve core is located within the conduction channel. The valve core is movably disposed along the extension direction of the conduction channel. The valve core has a closed position that closes the conduction channel and a connected position that at least partially opens the conduction channel. When the valve core is in the connected position, the receiving cavity is connected to the atmosphere through the conduction channel.

[0011] Furthermore, the conduction channel includes a first channel segment and a second channel segment. The diameter of the first channel segment is smaller than that of the second channel segment. The valve core is an elastic element. A slide rail is provided on the same side of the first channel segment and the second channel segment. The valve core can move along the slide rail in the first channel segment and the second channel segment. When the valve core is located in the first channel segment, the valve core seals the conduction channel. When the valve core is driven to move to the second channel segment by the negative pressure in the receiving cavity, the valve core is in the connected position.

[0012] Furthermore, the anti-negative pressure structure also includes an electronically controlled drive component, with the valve core connected to the electronically controlled drive component so that the electronically controlled drive component can drive the valve core to the connected position and the closed position. The liquid container also includes a pressure detection component, which is disposed in the receiving cavity. The anti-negative pressure structure also includes a controller, which is used to control the working state of the electronically controlled drive component according to the detection signal of the pressure detection component.

[0013] Furthermore, the anti-negative pressure structure also includes a vacuum pump, which is connected to the housing and its output end is connected to the containment cavity. The vacuum pump is used to replenish gas into the containment cavity when negative pressure is generated in the containment cavity.

[0014] Furthermore, the vacuum pump includes a frequency converter control module, which is used to adjust the operating speed of the vacuum pump based on the pressure value feedback inside the containment cavity.

[0015] According to another aspect of the present invention, a kitchen device is provided, including a liquid container, wherein the liquid container is any of the liquid containers described above.

[0016] By applying the technical solution of this utility model, an anti-negative pressure structure is set on the box body, and the conductive channel can ensure timely ventilation between the containing cavity and the atmospheric environment. This effectively avoids the negative pressure problem inside the box caused by liquid consumption during use, ensuring that the liquid can be smoothly extracted, improving liquid delivery efficiency and the service life of the liquid box. This application solves the problem in the prior art where negative pressure formed when the liquid box extracts liquid prevents the liquid from flowing out. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 shows a schematic diagram of the structure of a first embodiment of the liquid container according to the present invention;

[0019] Figure 2 shows a schematic diagram of the structure of a second embodiment of the liquid container according to the present invention;

[0020] Figure 3 shows a structural schematic diagram of a third embodiment of the liquid container according to the present invention.

[0021] The above figures include the following reference numerals:

[0022] 1. Box body;

[0023] 3. Receiving cavity;

[0024] 4. Through hole;

[0025] 5. Valve core;

[0026] 6. First channel section;

[0027] 7. Second Channel Section;

[0028] 8. Slide rail. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0033] Referring to Figures 1 to 3, according to a specific embodiment of this application, a liquid container and a kitchen device having the same are provided.

[0034] Specifically, the liquid container includes: a container body 1 and an anti-negative pressure structure. The container body 1 has a receiving cavity 3 inside, which forms a storage space for containing liquid. The anti-negative pressure structure is installed on the container body 1 and has a conductive channel, through which the receiving cavity 3 can be connected to the atmosphere.

[0035] By applying the technical solution of this utility model, an anti-negative pressure structure is set on the box body 1, and the conductive channel ensures timely ventilation between the receiving cavity 3 and the atmospheric environment. This effectively avoids the negative pressure problem inside the box caused by liquid consumption during use, ensuring that the liquid can be smoothly extracted, improving liquid delivery efficiency and the service life of the liquid box. This application solves the problem in the prior art where negative pressure formed when the liquid box extracts liquid prevents the liquid from flowing out.

[0036] Specifically, the guiding channel is a through hole 4, which is located on the side wall of the housing 1. By placing the through hole 4 on the side wall of the housing 1, when the pump draws liquid from the housing 1, the through hole 4 allows external air to enter the receiving cavity 3 in a timely manner, thus avoiding an internal vacuum, i.e., a negative pressure state, caused by liquid extraction. In this way, even under continuous liquid extraction, the air pressure inside the receiving cavity 3 of the housing 1 can remain balanced with the external atmospheric pressure, ensuring smooth liquid flow, improving the efficiency of liquid delivery, and extending the service life of the liquid container.

[0037] Optionally, the through-hole 4 can be located on the side wall of the housing 1, which not only effectively balances the internal and external pressure difference but also reduces the complexity of the top structure, facilitating the cleaning and maintenance of the liquid container. This allows the liquid container to maintain good performance and hygiene even after long-term use, reducing equipment failures caused by blockages or contamination.

[0038] Optionally, the edges of the through hole 4 can also be microstructured to reduce airflow resistance and noise through rounded corners, while preventing cracks or deformation caused by liquid or hard object impacts during use, thus improving the durability of the through hole 4.

[0039] Specifically, there are multiple through holes 4, arranged in an array on the top of the housing 1. This array distribution ensures that air can enter the housing evenly and rapidly, effectively preventing an internal vacuum (negative pressure) state formed when liquid is drawn out by the pump. The array distribution of the through holes 4 also takes into account the flow characteristics of the liquid and the sealing performance of the housing 1. By optimizing the arrangement of the holes, the structural strength and sealing performance of the top of the housing are guaranteed.

[0040] Multiple through-hole arrays are arranged in an array, and the array form includes at least one of the following: array arrangement includes: matrix (row × column, such as 3×4 arrangement), ring array (through holes are arranged in concentric circles or spirals around the center point), linear (through holes are arranged in a straight line or curve along a single direction of the lamp), fractal array (arranged according to fractal combination self-similar arrangement such as snowflake, honeycomb), random array (such as a random array whose distribution conforms to Poisson's ratio).

[0041] Optionally, the array form may include a composite array, such as an inner matrix array and an outer ring array.

[0042] Optionally, the distribution density of vias in the array decreases from the center to the edge to address the edge effect (a phenomenon in air-fluid systems where gas behavior in the edge region differs from that in the central region due to abrupt changes in boundary conditions).

[0043] As shown in Figure 3, there are 10 through holes 4 evenly distributed around the top of the box 1. The distance between each through hole 4 has been precisely calculated to ensure sufficient airflow without affecting the sealing of the top of the box 1. The distribution of the through holes 4 also takes into account the even distribution of liquid, avoiding the formation of local liquid accumulation or dead air zones at the top of the box 1.

[0044] Specifically, the diameter of the through hole 4 is D, where 0.4mm ≥ D ≥ 0.2mm. By precisely controlling the diameter D of the through hole 4 within the range of 0.4mm ≥ D ≥ 0.2mm, not only is unobstructed airflow ensured, but also impurities such as dust, microorganisms, and insects are effectively prevented from entering, ensuring that the items inside the liquid container are not contaminated.

[0045] Optionally, to further enhance the insect and dust prevention effect, we can also add a nano-scale filter membrane to the inside of each through hole 4. The pore size of this filter membrane is smaller than the diameter of the through hole 4, which can effectively block smaller particles and microorganisms, while having minimal resistance to airflow and ensuring ventilation.

[0046] It should be further explained that the top of the box 1 is designed with a double-layer sealing ring, which can ensure the sealing performance of the box 1 even with the through hole 4. In this way, during the storage and transportation of liquid, even under bumpy or tilted conditions, the liquid will not leak, while external air can also circulate appropriately through the through hole 4 to avoid the formation of negative pressure.

[0047] Furthermore, the anti-negative pressure structure includes an anti-negative pressure valve, which comprises a valve core 5 and a valve body. The valve body forms a conduction channel, and at least a portion of the valve core 5 is located within the conduction channel. The valve core 5 is movably disposed along the extension direction of the conduction channel. The valve core 5 has a closed position that closes the conduction channel and a connected position that at least partially opens the conduction channel. When the valve core 5 is in the connected position, the receiving cavity 3 is connected to the atmosphere through the conduction channel. The anti-negative pressure valve can automatically adjust the opening and closing of the conduction channel when the pump draws liquid, effectively preventing the formation of internal negative pressure. At the same time, through the special design of the valve core 5 and the conduction channel, it effectively blocks the intrusion of external contaminants, ensuring the purity and safety of the liquid inside the liquid container.

[0048] Optionally, an anti-negative pressure valve is located at the top of the housing 1, with the valve body forming a conduction channel. This channel serves as a path for gas exchange between the internal cavity 3 of the housing 1 and the external atmosphere. The valve core 5 is at least partially located within the conduction channel. It can move along the extension direction of the conduction channel according to the difference in internal and external air pressure, thereby changing the opening state of the channel. The valve core 5 can be designed with a slightly conical or trapezoidal shape. In the closed position, the valve core 5 completely seals the conduction channel, preventing the entry of external air and the leakage of internal gas, thus maintaining the airtightness of the housing 1. When the pump is used to draw liquid from inside the housing 1, the internal air pressure is lower than the external atmospheric pressure. The valve core 5 will move to the open position under the action of the external air pressure, at least partially opening the conduction channel, allowing external air to enter the cavity 3, balancing the internal and external air pressure, preventing the formation of a vacuum inside, thereby avoiding the generation of a negative pressure state and ensuring that the liquid can be smoothly drawn by the pump. Conversely, when the internal air pressure is higher than the external atmospheric pressure, the valve core 5 will be pushed to the closed position by the internal gas pressure, sealing the passage.

[0049] Furthermore, the guiding channel includes a first channel segment 6 and a second channel segment 7. The diameter of the first channel segment 6 is smaller than that of the second channel segment 7. The valve core 5 is an elastic element. A slide rail 8 is provided on the same side of the first channel segment 6 and the second channel segment 7. The valve core 5 can move along the slide rail 8 between the first channel segment 6 and the second channel segment 7. When the valve core 5 is located in the first channel segment 6, the valve core 5 seals the guiding channel. When the valve core 5 is driven by the negative pressure in the receiving cavity 3 to move to the second channel segment 7, the valve core 5 is in the connected position. Through the design of the valve core 5 and the multi-stage channel segments, the internal and external air pressure can be intelligently adjusted to prevent the formation of internal negative pressure, effectively blocking the entry of external contaminants and ensuring the purity and safety of the liquid inside the liquid container.

[0050] Specifically, as shown in Figure 2, the conduction channel of the anti-negative pressure valve is divided into a first channel section 6 and a second channel section 7, wherein the diameter of the first channel section 6 is smaller than that of the second channel section 7. This design allows the valve core 5 to autonomously adjust the opening degree of the channel under different air pressure conditions, and also effectively prevents the intrusion of external contaminants.

[0051] Specifically, a slide rail 8 is provided on the same side of the first channel section 6 and the second channel section 7. The function of the slide rail 8 is to guide the valve core 5 to move between different channel sections. When the air pressure in the receiving cavity 3 is equal to or higher than the external atmospheric pressure, the valve core 5, under the action of its own gravity and elastic force, will be located in the first channel section 6, i.e., the closed position. At this time, the narrow design of the first channel section 6 allows the valve core 5 to fit tightly against the channel wall, forming an effective seal, preventing gas from entering or leaving through the conduction channel, and maintaining the sealed state of the liquid box. When a negative pressure is formed in the receiving cavity 3 due to the pump drawing liquid, the external atmospheric pressure will push the valve core 5 to move along the slide rail 8 to the second channel section 7, which has a larger diameter, i.e., the connected position. In the second channel section 7, the pressure distribution on the valve core 5 is more uniform, allowing it to maintain the channel in the open state, allowing external air to enter the receiving cavity 3, balancing the internal and external air pressure, preventing the formation of an internal vacuum, and ensuring smooth liquid extraction.

[0052] Optionally, the valve core 5 is an elastic element, which may be made of elastic silicone material to facilitate its movement between different channel sections without causing wear to the channels.

[0053] Optionally, the surface of the slide rail 8 is smoothed to reduce frictional resistance when the valve core 5 moves, ensuring smooth movement. Furthermore, the material of the slide rail 8 also has a certain degree of elasticity to accommodate the slight compression and recovery of the valve core 5 during movement.

[0054] It should be further explained that, to further ensure the stability and safety of the valve core 5 during operation, a limiting member can be installed on the side of the second channel section 7 near the valve core 5. The limiting member is fixed to the inner wall of the second channel section 7, and is located at the farthest position where the valve core 5 can move along the slide rail. The diameter of the limiting member is slightly larger than the maximum outer diameter of the valve core 5, but smaller than the inner diameter of the second channel section 7. This effectively limits the range of movement of the valve core 5, preventing it from sliding out of the second channel section 7 under the action of external atmospheric pressure, thereby avoiding the failure of the anti-negative pressure valve and liquid leakage.

[0055] Specifically, when the internal air pressure of the receiving cavity 3 is equal to or higher than the external atmospheric pressure, the valve core 5, under the action of its own gravity and elastic force, will be located in the first channel section 6. At this time, the narrow design of the first channel section 6 causes the valve core 5 to fit tightly against the channel wall, forming an effective seal and preventing gas from entering or leaving through the conduction channel. When a negative pressure is formed in the receiving cavity 3 due to the pump drawing liquid, the external atmospheric pressure will push the valve core 5 to move along the slide rail 8 to the second channel section 7. The valve core 5 moves in the second channel section 7 until it contacts the limiting element. The presence of the limiting element ensures that the valve core 5 will not completely slide out of the second channel section 7, but will remain stable in the connected position. After the valve core 5 contacts the limiting element, its range of movement is restricted. Even if the external air pressure increases further, the valve core 5 will not be completely pushed out of the channel, thus ensuring the normal operation of the anti-negative pressure valve. The limiting element also prevents the valve core 5 from deviating from the connected position due to wear or deformation during long-term use, ensuring the long-term reliability and stability of the anti-negative pressure valve. When the air pressure in the receiving cavity 3 returns to the normal level or is higher than the external atmospheric pressure, the valve core 5 will overcome the friction of the limiting component under the action of the internal air pressure and return to the first channel section 6, forming a sealed state again, preventing gas flow, and protecting the sealing of the liquid box and the purity of the internal liquid.

[0056] Furthermore, the anti-negative pressure structure also includes an electrically controlled drive component. The valve core 5 is connected to the electrically controlled drive component, enabling it to drive the valve core 5 to be in the open and closed positions. The liquid container also includes a pressure detection component, which is located in the receiving cavity 3. The anti-negative pressure structure also includes a controller, which controls the operating state of the electrically controlled drive component based on the detection signal from the pressure detection component. Through the combination of the electrically controlled drive component and the pressure detection component, real-time monitoring and precise control of the pressure inside the liquid container are achieved.

[0057] Optionally, the electronically controlled drive component can be an electric push rod, a solenoid valve, or a stepper motor, etc., which precisely drives the valve core 5 to move between the connected position and the closed position according to the controller's instructions, thereby realizing the controllable opening and closing of the conduction channel.

[0058] Optionally, a pressure detection element can be installed on the top or side wall of the receiving cavity 3. It can be a pressure sensor or a pressure-sensitive resistor, etc., to monitor the air pressure changes inside the receiving cavity 3 in real time. The pressure detection element transmits the collected pressure signal to the controller. The controller analyzes the signal to determine whether the air pressure inside the receiving cavity 3 is lower than a set threshold, i.e., whether there is a risk of negative pressure.

[0059] Specifically, when the pump in the liquid container starts to draw liquid, the air pressure inside the receiving cavity 3 gradually decreases. When the controller detects that the air pressure inside the receiving cavity 3 is lower than a set threshold, it sends an opening signal to the electronically controlled drive. The electronically controlled drive then drives the valve core 5 to move to the connected position of the second channel section 7. At this time, the valve core 5 contacts the limiting member, the conduction channel opens, and outside air is introduced into the receiving cavity 3 to balance the internal air pressure and prevent the formation of negative pressure. When the air pressure inside the receiving cavity 3 returns to the normal level, the controller sends a closing signal to the electronically controlled drive, driving the valve core 5 back to the closed position of the first channel section 6, resealing the conduction channel to maintain the sealed state of the liquid container and prevent external contamination.

[0060] Furthermore, the anti-negative pressure structure also includes a vacuum pump, which is connected to the housing 1 and its output end is connected to the receiving cavity 3. The vacuum pump is used to replenish air into the receiving cavity 3 when negative pressure is generated. By adding a vacuum pump to the anti-negative pressure structure, external air can be quickly introduced when negative pressure is generated inside the receiving cavity 3, effectively preventing the problem of liquid suction difficulties caused by negative pressure.

[0061] Specifically, the vacuum pump can be fixedly connected to the housing 1 via a flange or threaded connection, the output end of the vacuum pump is connected to the receiving cavity 3, and the vacuum pump is electrically connected to the pressure detection device and the controller.

[0062] When the internal and external air pressures are balanced during or before liquid extraction, the vacuum pump is stopped, and the internal air pressure of the receiving chamber 3 remains stable. When liquid begins to be extracted from the liquid container, the internal air pressure of the receiving chamber 3 gradually decreases, creating a negative pressure. At this time, the pressure sensor detects that the internal air pressure is lower than a preset threshold and sends a low-pressure signal to the controller. Upon receiving the signal, the controller immediately starts the vacuum pump. The vacuum pump delivers air into the receiving chamber 3 through its output air pipe, rapidly increasing the internal air pressure until the internal and external air pressures reach equilibrium. While the vacuum pump is replenishing air, the controller also controls the electronically controlled drive to ensure that the valve core 5 is in the open position, allowing air to enter the receiving chamber 3 through the anti-negative-pressure valve's conduction channel. When the internal air pressure of the receiving chamber 3 returns to normal, the pressure sensor sends a normal air pressure signal to the controller, which then shuts down the vacuum pump, stops replenishing air, and drives the valve core 5 back to the closed position, sealing the conduction channel, and restoring the entire liquid container to its initial sealed state.

[0063] Specifically, the vacuum pump includes a frequency converter control module, which adjusts the operating speed of the vacuum pump based on the pressure feedback within the containment chamber 3. Through the coordinated operation of the vacuum pump and the frequency converter control module, dynamic adjustment of the gas supply rate is achieved, ensuring the continuity and efficiency of liquid pumping while reducing energy consumption. Furthermore, this dynamic adjustment mechanism improves the overall stability and reliability of the system, reducing liquid pumping fluctuations and equipment wear caused by rapid pressure changes.

[0064] Optionally, the vacuum pump is equipped with a high-performance variable frequency control module, which can accurately calculate and adjust the operating speed of the vacuum pump. The variable frequency control module is directly connected to the vacuum pump motor, and controls the vacuum pump's suction capacity by adjusting the motor's frequency. When the internal pressure of the containment chamber 3 is lower than a set threshold, the controller communicates with the variable frequency control module, calculates the required replenishment speed and amount based on the real-time pressure value, and sends adjustment commands to the variable frequency control module. The variable frequency control module will then increase the operating speed of the vacuum pump according to the controller's commands to quickly introduce outside air and eliminate the negative pressure. As the pressure gradually returns to the normal range, the variable frequency control module will gradually reduce the speed of the vacuum pump until it stops operating, avoiding energy waste and pressure fluctuations caused by excessive replenishment.

[0065] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0066] 1. By incorporating through-holes and an anti-negative pressure valve structure on the housing, along with electronically controlled drive components, pressure detection components, and a controller, real-time monitoring and precise control of the air pressure within the containment chamber are achieved. When the pump draws liquid, causing internal negative pressure, it can respond quickly and automatically open the anti-negative pressure valve to introduce outside air and eliminate the negative pressure state. This ensures smooth liquid suction, avoids liquid flow obstruction caused by negative pressure, and improves the efficiency and stability of liquid extraction. The through-hole design also effectively prevents impurities such as flying insects from entering the housing and contaminating the liquid inside.

[0067] 2. By introducing a vacuum pump and frequency converter control module, the gas replenishment rate can be automatically adjusted according to the actual pressure value inside the containment cavity, realizing intelligent and automated gas pressure regulation. This dynamic adjustment mechanism avoids the problems of over- or under-replenishment of gas, not only quickly eliminating negative pressure but also saving energy, reducing energy waste, and improving the overall operating efficiency and economy of the system.

[0068] The above embodiments can also be used in the field of kitchen equipment technology. That is, according to another aspect of the present invention, a kitchen equipment is provided, including a liquid container, wherein the liquid container is the liquid container of any of the above embodiments.

[0069] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0070] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0071] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0072] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid container, characterized in that, include: The box body (1) has a receiving cavity (3) inside, and the receiving cavity (3) forms a storage space for containing liquid material; The anti-negative pressure structure is disposed on the box (1) and has a conductive channel. The receiving cavity (3) can be connected to the atmosphere through the conductive channel.

2. The liquid container according to claim 1, characterized in that, The conductive channel is a through hole (4), which is located on the side wall of the box body (1).

3. The liquid container according to claim 2, characterized in that, There are multiple through holes (4), and the array of multiple through holes (4) is arranged on the top of the box body (1).

4. The liquid container according to claim 2 or 3, characterized in that, The diameter of the through hole (4) is D, where 0.4mm ≥ D ≥ 0.2mm.

5. The liquid container according to claim 1, characterized in that, The anti-negative pressure structure includes an anti-negative pressure valve, which includes a valve core (5) and a valve body. The valve body forms the conduction channel, and at least a portion of the valve core (5) is located within the conduction channel. The valve core (5) is movably disposed along the extension direction of the conduction channel. The valve core (5) has a closed position that closes the conduction channel and a connected position that at least partially opens the conduction channel. When the valve core (5) is in the connected position, the receiving cavity (3) is connected to the atmosphere through the conduction channel.

6. The liquid container according to claim 5, characterized in that, The conductive channel includes a first channel segment (6) and a second channel segment (7). The diameter of the first channel segment (6) is smaller than that of the second channel segment (7). The valve core (5) is an elastic element. A slide rail (8) is provided on the same side of the first channel segment (6) and the second channel segment (7). The valve core (5) can move along the slide rail (8) in the first channel segment (6) and the second channel segment (7). When the valve core (5) is located in the first channel segment (6), the valve core (5) seals the conductive channel. When the valve core (5) is driven to move to the second channel segment (7) by the negative pressure in the receiving cavity (3), the valve core (5) is located in the connected position.

7. The liquid container according to claim 5, characterized in that, The anti-negative pressure structure also includes an electronically controlled drive component. The valve core (5) is connected to the electronically controlled drive component so that the electronically controlled drive component can drive the valve core (5) to be in the connected position and the closed position. The liquid box also includes a pressure detection component, which is disposed in the receiving cavity (3). The anti-negative pressure structure also includes a controller, which is used to control the working state of the electronically controlled drive component according to the detection signal of the pressure detection component.

8. The liquid container according to claim 1, characterized in that, The anti-negative pressure structure also includes a vacuum pump, which is connected to the box (1). The output end of the vacuum pump is connected to the receiving cavity (3). The vacuum pump is used to replenish gas into the receiving cavity (3) when negative pressure is generated in the receiving cavity (3).

9. The liquid container according to claim 8, characterized in that, The vacuum pump includes a frequency conversion control module, which is used to adjust the operating speed of the vacuum pump based on the pressure value feedback in the accommodating cavity (3).

10. A kitchen appliance, comprising a liquid container, characterized in that, The liquid container is the liquid container according to any one of claims 1 to 9.

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