Pressure regulating valve, drawer assembly using same and refrigerator

Abstract

The pressure regulating valve comprises a valve shell, a regulating part and a valve element, the two ends of an elastic part of the valve element abut against the regulating part and a sealing part respectively and then abut against a pressure regulating opening below the valve shell, if the elastic part is in a first state, a gap is formed between the sealing part and the pressure regulating opening, and if the elastic part is in a second state, the sealing part and the pressure regulating opening are closed. And if the elastic piece is in the second state, sealing is achieved between the sealing piece and the pressure adjusting opening, and deformation of the elastic piece in the first state is larger than deformation of the elastic piece in the second state. The pressure regulating valve is arranged in the drawer assembly shell and communicated with the interior of the drawer assembly, and the gas pressure in the drawer assembly is automatically regulated through the characteristic that deformation is automatically recovered after compression of the elastic piece, so that the safety of the drawer assembly is improved, proper gas concentration is provided for the interior of the drawer assembly, and the use requirement is met.

Description

Technical Field

[0001] The present application relates to the field of refrigeration, and in particular to a pressure regulating valve, a drawer assembly using the same, and a refrigerator. Background Art

[0002] The hyperoxia compartment in a refrigerator is typically a sealed structure used to store food and maintain a high oxygen concentration. Through specific techniques, such as gas displacement, the hyperoxia compartment provides an oxygen environment conducive to food preservation or thawing. Pressure regulation within the hyperoxia compartment is primarily based on regular user checks and manual adjustments to ensure it remains within a safe range, but this is often inconvenient and unreliable. Another solution is to set the hyperoxia compartment pressure to a fixed value. While this simplifies the refrigerator's structure and control logic, it lacks flexibility and cannot automatically adjust the pressure according to actual needs. Failure to automatically adjust the pressure can lead to unstable oxygen concentrations, affecting food preservation. Excessive pressure can also exceed the refrigerator module's tolerance, causing structural damage or performance degradation. Utility Model Content

[0003] To address the problem that the sealed chamber cannot automatically adjust the gas pressure, the present application provides a pressure regulating valve, comprising:

[0004] The valve housing is a hollow structure and includes a first section and a second section connected to each other;

[0005] The adjusting member includes a first ventilation section having a first ventilation hole and a second ventilation section having a second ventilation hole, wherein the first ventilation hole is connected to the second ventilation hole, and the second ventilation section is sleeved inside the first section;

[0006] a valve core disposed in the hollow structure and comprising an elastic member and a sealing member abutting each other, wherein one end of the elastic member abuts the second air permeable section and the other end abuts the sealing member, and an end of the sealing member away from the elastic member abuts the pressure regulating port at the end of the second section;

[0007] When the elastic member is in a first state, a gap is formed between the sealing member and the pressure regulating port. When the elastic member is in a second state, the sealing member and the pressure regulating port are sealed. The deformation of the elastic member in the first state is greater than the deformation of the elastic member in the second state.

[0008] Furthermore, an accommodating cavity is at least partially provided inside the second air-permeable section to accommodate at least a portion of the elastic member.

[0009] Furthermore, the first section is provided with a first internal thread, and the second air-permeable section is provided with a first external thread, and the first internal thread cooperates with the first external thread to fix the valve housing and the adjusting member.

[0010] Furthermore, in a direction away from the elastic member, the diameter of the hollow structure corresponding to the second section and the diameter of the sealing member match and gradually decrease.

[0011] Furthermore, an end of the first air-permeable section away from the second air-permeable section is connected to an adjustment section, and the adjustment section is adjusted to rotate the adjustment member.

[0012] Furthermore, the first ventilation hole is connected to the second ventilation hole and is vertically arranged.

[0013] The present application further provides a drawer assembly, which includes a shell, a sealed storage cavity formed by the shell, and at least one of the above-mentioned pressure regulating valves penetrating the shell.

[0014] Furthermore, the drawer assembly includes a first pressure regulating valve and a second pressure regulating valve, the first pressure regulating valve has a first regulating member, a first elastic member and a first sealing member, and the second pressure regulating valve has a second regulating member, a second elastic member and a second sealing member;

[0015] There is a first distance between the first adjusting member and the first sealing member; there is a second distance between the second adjusting member and the second sealing member;

[0016] When the first distance is equal to the second distance, the elastic coefficients of the first elastic member and the second elastic member are different;

[0017] When the first distance is different from the second distance, the elastic coefficients of the first elastic member and the second elastic member are the same.

[0018] Furthermore, the pressure regulating port of the pressure regulating valve is connected to the sealed storage cavity.

[0019] Furthermore, the valve housing of the pressure regulating valve and the shell are integrally formed or separately formed.

[0020] The present application further provides a refrigerator comprising the above-mentioned drawer assembly.

[0021] Furthermore, the refrigerator also includes an air conditioning assembly connected to the drawer assembly to provide gas to the storage cavity of the drawer assembly.

[0022] The present application relates to a pressure-regulating valve, a drawer assembly using the same, and a refrigerator. The pressure-regulating valve includes a valve housing, an adjusting member, and a valve core. The two ends of the elastic member of the valve core abut the adjusting member and the sealing member, respectively, and then abut the pressure-regulating port below the valve housing. When the elastic member is in a first state, a gap is formed between the sealing member and the pressure-regulating port. When the elastic member is in a second state, the sealing member and the pressure-regulating port are sealed. The deformation of the elastic member in the first state is greater than the deformation of the elastic member in the second state. The pressure-regulating valve is arranged in the drawer assembly housing and communicates with the interior of the drawer assembly. The elastic member automatically recovers its deformation after being compressed, and automatically adjusts the gas pressure inside the drawer assembly to improve the safety of the drawer assembly and provide a suitable gas concentration inside the drawer assembly to meet usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the pressure regulating valve in this application;

[0024] Figure 2 This is a cross-sectional view of the pressure regulating valve for this application;

[0025] Figure 3 This is a schematic diagram of the connection structure of the regulating member and valve core of the pressure regulating valve of this application;

[0026] Figure 4 This is an exploded diagram of the regulating member and valve core connection of the pressure regulating valve in this application;

[0027] Figure 5 This is a cross-sectional view of the valve housing for this application;

[0028] Figure 6 This is a schematic diagram of the overall structure of the drawer assembly of this application;

[0029] Figure 7 This is a schematic diagram of the integrally formed structure of the valve housing and the drawer assembly housing of this application;

[0030] Figure 8 This is a schematic diagram of the connection structure between the drawer assembly and the air conditioning assembly in this application.

[0031] Description of Reference Numerals

[0032] 1. Valve housing; 11. First section; 111. First internal thread; 12. Second section; 121. Pressure regulating port; 2. Adjusting member; 21. First air permeable section; 210. First air permeable hole; 22. Second air permeable section; 220. Second air permeable hole; 221. First external thread; 222. Accommodating chamber; 3. Valve core; 31. Elastic member; 32. Sealing member; 4. Adjusting section; 100. Pressure regulating valve; 101. First pressure regulating valve; 102. Second pressure regulating valve; 110. Drawer assembly; 112. Housing; 200. Gas regulating assembly; 201. Cathode; 202. Anode; 203. Oxygen-depleted gas regulating channel; 204. Oxygen-rich gas regulating channel. DETAILED DESCRIPTION

[0033] In order to understand the features and technical contents of the embodiments of the present disclosure in more detail, the following Figure 1 - Figure 8 The implementation of the embodiments of the present disclosure is described in detail, and the accompanying drawings are for reference only and are not intended to limit the embodiments of the present disclosure.

[0034] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. They are interchangeable where appropriate to facilitate the description of the embodiments of the present disclosure. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0035] In the embodiments of the present disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "back" and other terms indicating positions or locations are based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the embodiments of the present disclosure and its implementations, and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0036] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0038] In order to solve the problem that the sealed compartment in the current refrigerator cannot automatically adjust the gas pressure, the present application provides a pressure regulating valve 100, see Figure 1 - Figure 5The pressure regulating valve 100 includes a valve housing 1, an adjusting member 2, and a valve core 3. The valve housing 1 is a hollow structure, including a first section 11 and a second section 12 connected to each other; the adjusting member 2 includes a first air-permeable section 21 having a first air-permeable through hole 210 and a second air-permeable section 22 having a second air-permeable through hole 220, wherein the first air-permeable through hole 210 communicates with the second air-permeable through hole 220, and the second air-permeable section 22 is sleeved inside the first section 11; the valve core 3 is placed in the hollow structure and includes an elastic member 31 and a sealing member 32 abutting each other, wherein one end of the elastic member 31 abuts the second air-permeable section 22 and the other end abuts the sealing member 32, and the end of the sealing member 32 away from the elastic member 31 abuts the pressure regulating port 121 at the end of the second section 12;

[0039] When the elastic member 31 is in the first state, a gap is formed between the sealing member 32 and the pressure regulating port 121. When the elastic member 31 is in the second state, the sealing member 32 and the pressure regulating port 121 are sealed. The deformation of the elastic member 31 in the first state is greater than the deformation of the elastic member 31 in the second state.

[0040] The interior of the valve housing 1 is a hollow structure to provide sufficient space for the adjusting member 2 and the valve core 3; along the direction from the first section 11 to the second section 12 of the valve housing 1, the hollow structure inside the valve housing 1 is sequentially provided with the second air permeable section 22 of the adjusting member 2, the elastic member 31 of the valve core 3 and the sealing member 32 of the valve core 3, and the second air permeable section 22, the elastic member 31 and the sealing member 32 are coaxially arranged with the valve housing 1.

[0041] The first air permeable section 21 of the regulating member 2 is connected to the second air permeable section 22 . The first air permeable section 21 is located outside the end of the first section 11 of the valve housing 1 to discharge the gas guided by the second air permeable section 22 to the outside of the pressure regulating valve 100 .

[0042] When pressure from the pressure regulating port 121 is applied to the seal 32, the seal 32 moves relative to the valve housing 1 in a direction away from the pressure regulating port 121. At this time, the elastic member 31 is compressed, forming a gap between the seal 32 and the pressure regulating port 121. When the pressure applied by the pressure regulating port 121 on the seal 32 decreases, the elastic member 31 recovers its deformed state due to its own elasticity, allowing the seal 32 to fit tightly against the pressure regulating port 121, thereby achieving a sealing effect.

[0043] In one embodiment of the present application, a receiving cavity 222 is at least partially provided inside the second ventilating section 22 . The receiving cavity 222 is provided in the second ventilating section 22 at one end close to the elastic member 31 to receive at least a portion of the elastic member 31 .

[0044] The accommodating cavity 222 matches the radial dimension of the elastic member 31 .

[0045] In an optional embodiment, a second ventilation hole 220 and an accommodating cavity 222 are simultaneously provided inside the second ventilation section 22 , and an axial radius of the second ventilation hole 220 is smaller than an axial radius of the accommodating cavity 222 .

[0046] The adjusting member 2 is fixed to the valve housing 1 through a threaded structure. Specifically, the first section 11 is provided with a first internal thread 111, and the second air-permeable section 22 is provided with a first external thread 221. The first internal thread 111 and the first external thread 221 cooperate to fix the valve housing 1 and the adjusting member 2.

[0047] The first internal thread 111 is a spiral groove inside the first section 11 of the valve housing 1, and the first external thread 221 is a corresponding spiral protrusion outside the second air-permeable section 22 of the regulating member 2. When the first internal thread 111 and the first external thread 221 are tightened, the friction between the threads will firmly fix them together.

[0048] By adjusting the screwing depth of the first internal thread 111 and the first external thread 221 , the compression degree of the elastic member 31 in the accommodating cavity 222 can be changed, thereby adjusting the elastic stress of the elastic member 31 .

[0049] For the pressure regulating valve 100 with the same structure, when the first internal thread 111 and the first external thread 221 are screwed in to a first depth and a second depth respectively, the first depth is greater than the second depth.

[0050] If the first internal thread 111 and the first external thread 221 are screwed into the first depth, the elastic member 31 is further compressed, and its elastic stress increases. The pressure regulating port 121 requires a greater pressure to compress the elastic member 31 .

[0051] If the first internal thread 111 and the first external thread 221 are screwed into the first depth, the compression degree of the elastic member 31 is reduced, and the elastic stress thereof is also reduced accordingly. The pressure regulating port 121 only needs a smaller pressure to compress the elastic member 31 .

[0052] By adjusting the depth of the screw thread, the elastic stress of the elastic member 31 can be precisely adjusted to meet the use requirements of different pressure conditions.

[0053] In one embodiment, along a direction away from the elastic member 31 , the diameter of the hollow structure corresponding to the second section 12 and the diameter of the sealing member 32 match and gradually decrease.

[0054] When pressure from the pressure regulating port 121 is applied to the end of the seal 32 closest to the pressure regulating port 121, the gradually decreasing diameter of the seal 32 is more easily pushed open, forming a gap. When the pressure at the pressure regulating port 121 decreases, the seal 32 is more easily reattached to the pressure regulating port 121 as the elastic member 31 recovers its deformation. This makes the pressure regulating valve 100 more sensitive and accurate, enabling it to respond to pressure changes and adjust more quickly.

[0055] An end of the first air-permeable section 21 away from the second air-permeable section 22 is connected to an adjusting section 4 , and the adjusting section 4 is adjusted to rotate the adjusting member 2 .

[0056] Rotating the adjusting member 2 can tighten or loosen the adjusting member 2 , and can also change the compression degree of the elastic member 31 , thereby changing the pressure between the sealing member 32 and the pressure regulating port 121 .

[0057] In addition, for the convenience of adjustment, in an optional embodiment of the present application, a strip-shaped adjustment groove is provided at the end of the adjustment section 4 away from the first breathable section 21, for accommodating the force-applying end of the adjustment tool, such as a screwdriver, a wrench, etc., so as to more easily rotate the adjustment section 4 and thereby adjust the pressure regulating valve 100.

[0058] The first ventilation hole 210 is connected to the second ventilation hole 220 and is vertically arranged.

[0059] The first ventilation holes 210 and the second ventilation holes 220 are connected, so gas can flow freely between the two first ventilation holes 210 and the second ventilation holes 220 .

[0060] The first ventilation hole 210 and the second ventilation hole 220 are vertically arranged, that is, the axes of the first ventilation hole 210 and the second ventilation hole 220 are perpendicular to each other; specifically, the axis of the second ventilation hole 220 is vertical, and the axis of the first ventilation hole 210 is horizontal.

[0061] In one embodiment, the elastic member 31 is a spring.

[0062] This application also provides a drawer assembly 110, see Figure 6 The drawer assembly 110 includes a shell 112 , a sealed storage cavity formed by the shell 112 , and at least one of the above-mentioned pressure regulating valves 100 passing through the shell 112 .

[0063] The shell 112 of the specific drawer assembly 110 includes an upper shell, a lower shell, a front shell, a rear shell, a first side shell and a second side shell. When the upper shell, the lower shell, the front shell, the rear shell, the first side shell and the second side shell are arranged to form a storage cavity, the storage cavity is set to be a sealed cavity.

[0064] Since the gas pressure or gas concentration in the storage cavity of the drawer assembly 110 can be adjusted according to actual needs, at least one pressure regulating valve 100 is provided on the housing 112 of the drawer assembly 110 .

[0065] If the pressure in the storage chamber of the drawer assembly 110 is too high, the pressure in the storage chamber acts on the seal 32 of the pressure regulating valve 100, and the pressure pushes the seal 32 to compress the elastic part 31. At this time, a gap is formed between the seal 32 and the pressure regulating port 121, and the gas in the storage chamber flows out from the gap and passes through the second air hole 220 to the first air hole 210, and finally is discharged from the first air hole 210 to the external space of the drawer assembly 110.

[0066] If the pressure in the storage cavity within the drawer area is too low, the pressure in the storage cavity acts on the seal 32 of the pressure regulating valve 100, and the pressure cannot push the seal 32 to compress the elastic part 31. At this time, the seal 32 and the pressure regulating port 121 are in a sealed state, and the gas in the storage cavity will not flow out from any structure of the pressure regulating valve 100, so as to maintain the gas pressure or gas concentration in the drawer assembly 110.

[0067] In an optional embodiment, the drawer assembly 110 includes two independent pressure regulating valves 100 disposed in its housing 112, namely a first pressure regulating valve 101 and a second pressure regulating valve 102. The first pressure regulating valve 101 has a first adjusting member, a first elastic member, and a first sealing member, and the second pressure regulating valve 102 has a second adjusting member, a second elastic member, and a second sealing member.

[0068] There is a first distance between the first adjusting member and the first sealing member; there is a second distance between the second adjusting member and the second sealing member;

[0069] When the first distance and the second distance are equal, the first elastic member and the second elastic member have different elastic coefficients; the first pressure regulating valve 101 and the second pressure regulating valve 102 will produce different elastic changes under the same pressure. In actual use, elastic members 31 with different elastic coefficients are selected as needed to achieve specific pressure regulation.

[0070] When the first distance and the second distance are equal, the first elastic member and the second elastic member have different elastic coefficients. The elastic coefficient, also known as the stiffness coefficient or rigidity coefficient, is a physical quantity that describes the ease with which an object deforms when subjected to an external force. Generally speaking, a larger elastic coefficient indicates a smaller deformation of the elastic member 31 when subjected to the same force.

[0071] In one embodiment, when the first distance and the second distance are equal, the first elastic member and the second elastic member have different elastic coefficients. The first elastic member and the second elastic member may be made of different materials. Different materials have different elastic coefficients, resulting in different abilities of the materials to resist deformation under stress. For example, copper and iron, both metals, have different elastic coefficients. Therefore, selecting different materials can change the elastic coefficient.

[0072] In another embodiment, when the first distance and the second distance are equal and the first and second elastic members are made of the same material, if the first and second elastic members have different spring constants, if the elastic member 31 is a spring, the spring constant can be changed by changing the spring wire diameter. The spring wire diameter is the inner diameter of the wire wound around the spring.

[0073] When the elastic coefficients of the first elastic member and the second elastic member are the same, the first distance and the second distance are set to be unequal.

[0074] In one embodiment, one of the first pressure regulating valve 101 and the second pressure regulating valve 102 is arranged on the upper shell, and the other is arranged on the rear shell. It should be noted that the first pressure regulating valve 101 and the second pressure regulating valve 102 are arranged at the position of the shell 112 of the drawer assembly 110, and this application does not impose specific restrictions.

[0075] Of course, the number of the pressure regulating valves 100 can also be set according to actual needs.

[0076] The pressure regulating port 121 of the pressure regulating valve 100 is connected to the sealed storage chamber. This allows the pressure regulating valve 100 to quickly respond to changes in gas pressure within the storage chamber. This allows the pressure regulating valve 100 to automatically adjust the outflow of gas or maintain it constant based on the actual pressure within the storage chamber, thereby maintaining a stable pressure within the storage chamber.

[0077] The valve housing 1 and the shell 112 of the pressure regulating valve 100 are formed integrally or separately.

[0078] In one embodiment, the valve housing 1 of the pressure regulating valve 100 and the housing 112 of the drawer assembly 110 are integrally formed. Figure 7 The valve housing 1 and the outer shell 112 of the drawer assembly 110 are formed into a whole during the manufacturing process through a manufacturing process, such as injection molding or die casting, so that the valve housing 1 of the pressure regulating valve 100 and the shell 112 of the drawer assembly 110 have a compact structure, thereby improving the sealing performance of the pressure regulating valve 100 and the drawer assembly 110.

[0079] In another embodiment, the valve housing 1 of the pressure regulating valve 100 and the housing 112 of the drawer assembly 110 are formed separately. That is, the valve housing 1 of the pressure regulating valve 100 and the housing 112 of the drawer assembly 110 are manufactured separately and then assembled together using connectors, such as clips and screws. Separate molding allows for greater flexibility in the manufacturing and assembly process, facilitating replacement and repair of individual components.

[0080] The present application further provides a refrigerator comprising the above-mentioned drawer assembly 110 .

[0081] See also Figure 8 The refrigerator further includes an air conditioning assembly 200 connected to the drawer assembly 110 to provide gas to the storage cavity of the drawer assembly 110.

[0082] The atmosphere adjustment assembly 200 injects or adjusts gas composition into the storage cavity of the drawer assembly 110 to create a gas environment in the storage cavity that is conducive to the storage of items.

[0083] The gas conditioning assembly 200 regulates the gas in the storage chamber by reducing or increasing the oxygen content, increasing the nitrogen content or the proportion of other inert gases, and controlling parameters such as humidity and carbon dioxide concentration.

[0084] In an optional embodiment, the atmosphere control assembly 200 adjusts the oxygen content in the storage chamber. The atmosphere control assembly 200 includes at least one anode 202 and at least one cathode 201, wherein the anode 202 is controllably connected to the positive pole of the power supply, and the cathode 201 is controllably connected to the negative pole of the power supply.

[0085] When the gas-conditioning component 200 is controlled to operate, the positive pole of the power supply is connected to the anode 202 and the negative pole of the power supply is connected to the cathode 201, that is, the power supply supplies power to the gas-conditioning component 200; when the gas-conditioning component 200 is controlled to stop, the positive pole of the power supply is cut off from the connection with the anode 202 and the negative pole of the power supply is cut off from the connection with the cathode 201, that is, the power supply stops supplying power to the gas-conditioning component 200.

[0086] The gas conditioning assembly 200 further includes an inner cavity capable of accommodating at least an electrolyte.

[0087] A first side of the cathode 201 is placed in the electrolyte in the inner cavity, and a second side is exposed to the air outside the electrolyte of the gas conditioning assembly 200 .

[0088] When the gas conditioning assembly 200 is in operation, that is, when powered, the cathode 201 is used to consume oxygen in the external air of the gas conditioning assembly 200 through an electrochemical reaction. Specifically, oxygen undergoes a reduction reaction at the cathode 201, and the reaction formula is O2+2H2O+4e － →4OH －In this way, an oxygen-depleted fresh-keeping atmosphere can be generated in the oxygen-depleted air conditioning channel 203 of the atmosphere conditioning component 200, and the oxygen-depleted air conditioning channel 203 is connected to the B end.

[0089] One side or both sides of the anode 202 are placed in the electrolyte in the inner cavity. The anode 202 generates oxygen in the inner cavity through electrochemical reaction to form an oxygen-rich fresh-keeping atmosphere. Specifically, OH in the electrolyte － An oxidation reaction may occur at the anode 202 to generate oxygen, with the reaction formula being 4OH － →O2+2H2O+4e － The generated oxygen is collected by the oxygen-rich air conditioning channel 204 to form an oxygen-rich fresh-keeping atmosphere, and the oxygen-rich air conditioning channel 204 is connected to the A end.

[0090] At least one of the above-mentioned A end and B end is connected to the storage cavity of the drawer assembly 110. When the A end is connected to the storage cavity of the drawer assembly 110, the B end can be connected to the storage cavity of another drawer assembly 110 or be directly discharged into the air. Similarly, when the B end is connected to the drawer assembly 110, the A end can be connected to the storage cavity of another drawer assembly 110 or be directly discharged into the air.

[0091] The composition of the electrolyte, and the specific structures / materials of the cathode 201 and anode 202, are common knowledge in the field of electrolysis technology. For example, the electrolyte can be electrolyzed water containing low-concentration sodium hydroxide or potassium hydroxide, or other alkaline, acidic, or neutral solutions. The cathode 201 can be a composite structure composed of a conductive layer, a catalytic layer, a waterproof and breathable layer, or other functional layers combined by external pressure, thermal processing, or the like. The anode 202 can also be a conductive layer or an inert electrode. Of course, this is not a limitation. Any combination of electrolyte, anode 202, and cathode 201 that can produce a fresh-keeping atmosphere by electrochemical reaction can be used in the construction of the gas conditioning assembly 200 of the present invention.

[0092] The present application relates to a pressure-regulating valve 100, a drawer assembly 110 using the same, and a refrigerator. The pressure-regulating valve 100 includes a valve housing 1, an adjusting member 2, and a valve core 3. The ends of the elastic member 31 of the valve core 3 abut the adjusting member 2 and the sealing member 32, respectively, and thus abut against a pressure-regulating port 121 below the valve housing 1. When the elastic member 31 is in a first state, a gap is formed between the sealing member 32 and the pressure-regulating port 121. When the elastic member 31 is in a second state, the sealing member 32 and the pressure-regulating port 121 are sealed. The deformation of the elastic member 31 in the first state is greater than the deformation of the elastic member 31 in the second state. The pressure-regulating valve 100 is disposed in the outer shell of the drawer assembly 110 and communicates with the interior of the drawer assembly 110. By automatically recovering its deformation after compression, the elastic member 31 automatically adjusts the gas pressure inside the drawer assembly 110, thereby improving the safety of the drawer assembly 110 and providing a suitable gas concentration within the drawer assembly 110 to meet usage requirements.

[0093] In the description of this specification, reference to the terms "one embodiment" or "alternative embodiment" or the like means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. Those skilled in the art may combine and associate different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless otherwise mutually incompatible.

[0094] This application has been described with reference to the aforementioned embodiments. However, these embodiments are merely exemplary embodiments of the present application. It should be noted that the disclosed embodiments do not limit the scope of this application. On the contrary, modifications and enhancements made without departing from the spirit and scope of this application are intended to be protected by this patent.

Claims

1. A pressure regulating valve, characterized in that: include: A valve housing (1), the valve housing (1) being a hollow structure, comprising a first section (11) and a second section (12) connected to each other; The adjusting member (2) comprises a first air permeable section (21) having a first air permeable hole (210) and a second air permeable section (22) having a second air permeable hole (220), wherein the first air permeable hole (210) is connected to the second air permeable hole (220), and the second air permeable section (22) is sleeved inside the first section (11); A valve core (3), the valve core (3) being placed in the hollow structure, comprising an elastic member (31) and a sealing member (32) abutting against each other, one end of the elastic member (31) abutting against the second air permeable section (22), and the other end abutting against the sealing member (32), and one end of the sealing member (32) away from the elastic member (31) abutting against the pressure regulating port (121) at the end of the second section (12); When the elastic member (31) is in a first state, a gap is formed between the sealing member (32) and the pressure regulating port (121); when the elastic member (31) is in a second state, the sealing member (32) and the pressure regulating port (121) are sealed; and the deformation of the elastic member (31) in the first state is greater than the deformation of the elastic member (31) in the second state.

2. The pressure regulating valve according to claim 1, characterized in that: An accommodating cavity (222) is at least partially provided inside the second air-permeable section (22) to accommodate at least a portion of the elastic member (31).

3. The pressure regulating valve according to claim 1, characterized in that: The first section (11) is provided with a first internal thread (111), and the second air-permeable section (22) is provided with a first external thread (221). The first internal thread (111) and the first external thread (221) cooperate to fix the valve housing (1) and the regulating member (2).

4. The pressure regulating valve according to claim 1, characterized in that Along the direction away from the elastic member (31), the diameter of the hollow structure corresponding to the second section (12) and the diameter of the sealing member (32) match and gradually decrease.

5. The pressure regulating valve according to claim 1, characterized in that: One end of the first air permeable section (21) away from the second air permeable section (22) is connected to an adjustment section (4), and the adjustment section (4) is adjusted to rotate the adjustment member (2).

6. The pressure regulating valve according to claim 1, characterized in that The first ventilation hole (210) is connected to the second ventilation hole (220) and is vertically arranged.

7. A drawer assembly, characterized in that: The drawer assembly (110) comprises a shell (112), a sealed storage cavity enclosed by the shell (112), and at least one pressure regulating valve (100) according to any one of claims 1 to 6, which is disposed through the shell (112).

8. The drawer assembly according to claim 7, wherein: The drawer assembly (110) comprises a first pressure regulating valve (101) and a second pressure regulating valve (102), wherein the first pressure regulating valve (101) comprises a first regulating member, a first elastic member and a first sealing member, and the second pressure regulating valve (102) comprises a second regulating member, a second elastic member and a second sealing member; There is a first distance between the first adjusting member and the first sealing member; there is a second distance between the second adjusting member and the second sealing member; When the first distance is equal to the second distance, the elastic coefficients of the first elastic member and the second elastic member are different; When the first distance is different from the second distance, the elastic coefficients of the first elastic member and the second elastic member are the same.

9. The drawer assembly according to claim 7, wherein: The pressure regulating port (121) of the pressure regulating valve (100) is connected to the sealed storage cavity.

10. The drawer assembly according to claim 7, wherein: The valve housing (1) and the shell (112) of the pressure regulating valve (100) are integrally formed or separately formed.

11. A refrigerator, characterized in that: A drawer assembly (110) comprising any one of claims 7 to 10.

12. The refrigerator according to claim 11, characterized in that The refrigerator further comprises an air conditioning assembly (200) connected to the drawer assembly (110) to provide air to the storage cavity of the drawer assembly (110).

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