Self-adaptive steady flow and instantaneous high-pressure protection hose valve and hose packaging container

Abstract

The invention discloses a self-adaptive steady flow and instantaneous high-pressure protection hose valve and a hose packaging container. The self-adaptive steady flow and instantaneous high-pressure protection hose valve comprises a valve body and a valve cavity, wherein the valve cavity is communicated with a liquid inlet and a liquid outlet; an elastic response assembly in the valve cavity divides the valve cavity into a low-pressure side and a high-pressure side. When the low-pressure side pressure is lower than or equal to a first threshold value, the liquid inlet is sealed; when the pressure of the low-pressure side is higher than a first threshold value, a fluid main channel from the liquid inlet to the liquid outlet through the valve cavity is opened; the flow limiting structure is arranged on the high-pressure side and communicates with the liquid outlet; when the pressure of the low-pressure side rises to a second threshold value, the low-pressure side deforms to make contact with the flow limiting structure to seal the fluid main channel, and the liquid outlet communicates with the valve cavity through a constant micro-channel formed in the flow limiting structure. By arranging the elastic response assembly and the flow limiting structure which can be self-adaptively deformed according to the internal pressure to adjust the sectional area of the main channel and can be switched to the constant micro-channel at high pressure, the problems of unstable discharge flow of the hose and explosive liquid discharge at instantaneous high pressure are solved, and reliable one-way sealing is realized at the same time.

Description

Technical Field

[0001] This invention belongs to the field of hose valve technology, and particularly relates to a hose valve and hose packaging container with adaptive flow stabilization and instantaneous high pressure protection. Background Technology

[0002] Tube packaging is a common packaging form in the daily chemical, pharmaceutical, and food industries, such as toothpaste, facial cleanser, and ointments. However, traditional tubes have two major drawbacks in use: First, poor one-way sealing. After the contents are extruded, the tube opening cannot effectively prevent air from flowing back into the tube, causing the residue inside to come into contact with air, easily leading to oxidation, drying, spoilage, or bacterial growth, seriously affecting the product's shelf life and safety. Second, uncontrollable extrusion flow. The extrusion volume depends entirely on the user's squeezing force and speed. Light squeezing results in insufficient output, affecting efficiency, while heavy squeezing or sudden force leads to excessive output and waste, resulting in a poor user experience and being uneconomical. Although simple anti-backflow valves exist in existing technologies, they generally cannot simultaneously solve the problem of drastic fluctuations in flow rate with pressure. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the prior art, the present invention provides a flexible hose valve and a flexible hose packaging container with adaptive flow stabilization and instantaneous high pressure protection. By setting an elastic response component and a flow limiting structure that can adaptively deform according to internal pressure to adjust the cross-sectional area of ​​the main channel and switch to a constant microchannel under high pressure, the invention solves the problems of unstable hose discharge flow and explosive liquid discharge under instantaneous high pressure, while achieving reliable one-way sealing.

[0004] Technical solution: To achieve the above objectives, the present invention provides an adaptive current stabilization and instantaneous high-pressure protection hose valve, comprising:

[0005] The valve body has a valve cavity inside and is provided with an inlet and an outlet communicating with the valve cavity;

[0006] An elastic response component is disposed within the valve chamber and divides the valve chamber into a low-pressure side near the inlet and a high-pressure side near the outlet.

[0007] The resilient response component is configured such that:

[0008] When the pressure on the low-pressure side is lower than or equal to a first threshold, it seals the inlet.

[0009] Furthermore, when the pressure on the low-pressure side is higher than the first threshold, it undergoes elastic deformation to open the main fluid channel from the inlet through the valve chamber to the outlet, and the equivalent flow cross-sectional area of ​​the main fluid channel is negatively correlated with the pressure to achieve adaptive stability of the output flow rate.

[0010] A flow-limiting structure is provided on the high-pressure side and connected to the liquid outlet;

[0011] The elastic response component is further configured such that when the low-pressure side pressure rises to a second threshold, it deforms to contact the flow-limiting structure to close the main fluid channel, and the outlet is kept in communication with the valve chamber through at least one constant microchannel formed on the flow-limiting structure.

[0012] Furthermore, the elastic response component is a circular elastic diaphragm; the valve body includes a detachably connected bottom cover and a top cover, the liquid inlet is a liquid inlet hole located in the center of the bottom cover, the liquid outlet is a liquid outlet hole located in the center of the top cover, and the elastic diaphragm is disposed within the valve cavity formed by the bottom cover and the top cover.

[0013] Furthermore, a sealing surface is formed around the periphery of the liquid inlet hole for sealing and engaging with the center of the elastic diaphragm;

[0014] The flow-limiting structure is an annular limiting platform surrounding the liquid outlet and disposed on the inner top surface of the upper cover, and the constant microchannel is at least one microchannel opened on the inner top surface of the upper cover and passing through the annular limiting platform.

[0015] Furthermore, the inner top surface edge of the upper cover is provided with an annular support portion for axially limiting the edge of the elastic diaphragm, and the inner wall of the upper cover is provided with a plurality of radial protrusions located below the annular support portion for radially limiting the edge of the elastic diaphragm.

[0016] Furthermore, the annular support portion is provided with at least one notch, which constitutes an upper side flow channel; the gap between adjacent radial protrusions constitutes a lower side flow channel, and the upper side flow channel and one of the lower side flow channels correspond to and communicate with each other in the axial direction, together constituting part of the main fluid channel.

[0017] Furthermore, an upper flow gap is formed between the elastic diaphragm and the annular limiting platform; when the elastic diaphragm is compressed and its center deforms toward the upper cover, a lower flow gap is formed with the sealing surface.

[0018] During the deformation of the elastic diaphragm, the fluid path includes at least the following sequence: the inlet hole, the lower flow gap, the lower side flow channel, the upper side flow channel, the upper flow gap, and the outlet hole;

[0019] When the elastic diaphragm deforms to the point where its middle part fits against the end face of the annular limiting platform, the upper flow gap is eliminated, and the fluid flows through the microchannel to the outlet hole.

[0020] Furthermore, the first threshold corresponds to the critical pressure required for the elastic response component to begin to disengage from the sealed state;

[0021] The second threshold corresponds to the critical pressure required for the elastic response component to deform to contact the flow-limiting structure.

[0022] Furthermore, the elastic response component is made of NBR rubber.

[0023] Furthermore, the bottom cover and the top cover are connected by threads, snaps, or ultrasonic welding.

[0024] A flexible tube packaging container includes a flexible tube, wherein the discharge end of the flexible tube is provided with a flexible tube valve that provides adaptive flow stabilization and instantaneous high pressure protection.

[0025] Beneficial Effects: This invention, through a flexible hose valve, fundamentally solves the problem of air backflow in flexible hose products. The automatic reset and sealing of the elastic diaphragm effectively isolates the contents from air, significantly improving product freshness and lifespan. Secondly, by utilizing the dynamic changes in the gap between the diaphragm's elastic deformation and the fixed flow-limiting structure, adaptive and stable discharge flow is achieved. Whether the user squeezes gently or forcefully, a relatively constant output flow is obtained, greatly improving the user experience and avoiding waste. Furthermore, by setting up a microchannel as a high-pressure safety path, it ensures that even under extreme conditions of instantaneous high-pressure squeezing, the liquid output will not be interrupted or burst, but will instead be converted into a controlled, small flow, achieving reliable operation across the entire pressure range. This valve can be used as a standard component, adaptable to any type of flexible hose, thereby stabilizing the hose's liquid output, preventing air backflow into the hose, and preventing burst discharge caused by instantaneous high pressure. Attached Figure Description

[0026] Figure 1 This is a half-sectional schematic diagram of a hose container having the hose valve of the present invention.

[0027] Figure 2 for Figure 1 Enlarged structural diagram of region C in the middle;

[0028] Figure 3 This is a schematic diagram of the upper cover structure;

[0029] Figure 4 This is an enlarged structural diagram of the area where the hose valve is located.

[0030] Figure 5 This is a schematic diagram of the first path for liquid discharge.

[0031] Figure 6 This is a schematic diagram of the second path for liquid discharge. Detailed Implementation

[0032] The invention will now be further described with reference to the accompanying drawings.

[0033] like Figure 1 , Figure 2 , Figure 5 as well as Figure 6 As shown, a flexible hose valve with adaptive flow stabilization and instantaneous high-pressure protection includes: a valve body having a valve cavity formed therein, and having an inlet and an outlet communicating with the valve cavity; an elastic response component disposed within the valve cavity and dividing the valve cavity into a low-pressure side near the inlet and a high-pressure side near the outlet; the elastic response component is configured to: seal the inlet when the pressure on the low-pressure side is lower than or equal to a first threshold; and elastically deform to open the inlet when the pressure on the low-pressure side is higher than the first threshold. A main fluid channel extends from the inlet to the outlet via the valve chamber, and the equivalent flow cross-sectional area of ​​the main fluid channel is negatively correlated with the pressure to achieve adaptive stability of the output flow rate. A flow-limiting structure is disposed on the high-pressure side and communicates with the outlet. The elastic response component is further configured such that when the low-pressure side pressure rises to a second threshold, it deforms to contact the flow-limiting structure to close the main fluid channel. The outlet remains in communication with the valve chamber through at least one constant microchannel formed on the flow-limiting structure. The core function of this component, comprised of the valve body, the elastic response component, and the flow-limiting structure, lies in its pressure-deformation response characteristics: when the low-pressure side pressure is lower than or equal to a set first threshold, the component maintains a seal on the inlet, achieving static backflow prevention; when the pressure exceeds the first threshold, the component undergoes elastic deformation, opening a main fluid channel from the inlet through the valve chamber to the outlet. The advantage of this process lies in the fact that the equivalent flow cross-sectional area of ​​the main channel is designed to be negatively correlated with the driving pressure. This means that as the pressure increases, the effective flow area of ​​the channel decreases due to structural deformation, forming an inherent negative feedback regulation mechanism. This automatically suppresses the linear increase in flow rate with pressure, achieving adaptive stability of the output flow rate. To further cope with instantaneous abnormal high pressure, a flow-limiting structure connected to the outlet is set on the high-pressure side. When the pressure rises to a higher second threshold, the elastic response component deforms to contact the flow-limiting structure, thereby closing or extremely narrowing the aforementioned main fluid channel. At this time, the outlet can remain connected to the valve chamber through at least one constant microchannel preset on the flow-limiting structure. This microchannel has a fixed and small cross-sectional area, serving as a safe discharge path to ensure that a very small and constant output flow rate is maintained even under extreme pressure, completely eliminating explosive discharge.

[0034] like Figure 2As shown, the elastic response component is a circular elastic diaphragm 4, a shape that facilitates symmetrical and uniform force and deformation. The valve body adopts a split design, comprising a detachably connected bottom cover 2 and top cover 3, which facilitates the assembly and encapsulation of the elastic diaphragm 4. The liquid inlet is a liquid inlet hole 20 located in the center of the bottom cover 2, and the liquid outlet is a liquid outlet hole 30 located in the center of the top cover 3. The elastic diaphragm 4 is disposed within the valve cavity formed by the bottom cover 2 and the top cover 3, and the elastic diaphragm 4 is the core actuating component for performing pressure sensing, deformation, sealing, and flow regulation.

[0035] The periphery of the liquid inlet 20 is formed with a sealing surface 5 for sealing and engaging with the middle part of the elastic diaphragm 4. The sealing surface 5 matches the shape of the middle part of the elastic diaphragm 4. Under no pressure or low pressure conditions, it is tightly fitted with the elastic diaphragm 4 by its own elastic pre-tightening force or slight deformation, forming a reliable line seal or surface seal. This is a decisive structure to prevent air backflow.

[0036] The flow-limiting structure is an annular limiting platform 31 surrounding the outlet 30 and disposed on the inner top surface of the upper cover 3. This annular limiting platform 31 defines the upper limit position of the elastic diaphragm deformation. The constant microchannel is at least one microchannel 32 opened on the inner top surface of the upper cover 3 and penetrating the annular limiting platform 31. The microchannel 32 is specifically implemented as one or more microchannels 32 (or grooves) directly engraved or formed on the inner top surface of the upper cover 3 and radially penetrating the annular limiting platform 31. When the middle part of the elastic diaphragm 4 deforms upward and finally completely fits the lower end face of the annular limiting platform 31, the main flow gap (that is, the subsequent upward flow gap B) is eliminated. At this time, the microchannel 32 becomes the only fluid passage with a constant cross-section connecting the valve cavity and the outlet 30, so that the material in the hose 1 can flow out of the microchannel 32 at a uniform speed, but without causing explosive discharge.

[0037] like Figure 2 and Figure 3As shown, to ensure the stability, controllable and repeatable deformation of the elastic diaphragm 4 during operation, a positioning and constraint structure for the edge of the elastic diaphragm 4 is required. The inner top surface edge of the upper cover 3 is provided with an annular support 33 for axially limiting the edge of the elastic diaphragm 4. This annular support 33 provides a clear limiting point for the edge region of the elastic diaphragm 4 in the axial direction. Its height is designed and, together with the sealing surface 5, determines the pre-tightening degree and initial position of the elastic diaphragm 4 in its natural state, ensuring the reliability of the seal. Furthermore, the inner wall of the upper cover 3 is provided with multiple radial protrusions 34 located below the annular support 33 for radially limiting the edge of the elastic diaphragm 4. These radial protrusions 34 do not axially press against the edge of the elastic diaphragm 4, but gently limit its outer circumference, preventing it from shifting, tilting, or twisting within the valve cavity due to uneven force or fluid impact. This ensures that each deformation is centered and symmetrical, thereby guaranteeing the consistency and stability of the flow regulation characteristics.

[0038] like Figure 3 and Figure 4 As shown, the annular support portion 33 is not a complete closed ring. The annular support portion 33 has at least one notch that extends axially, allowing fluid to flow from below the elastic diaphragm 4 upwards. That is, the notch forms an upper side flow channel 35. Simultaneously, the gaps between adjacent radial protrusions 34 form lower side flow channels 36. The upper side flow channel 35 and one of the lower side flow channels 36 correspond axially and communicate with each other, together forming part of the main fluid channel. Thus, the fluid flowing in from the inlet hole 20, while pushing the middle of the elastic diaphragm 4 upwards, can smoothly bypass the diaphragm edge region through the bypass formed by these specific lower side flow channels 36 and upper side flow channels 35, and detour into the central region above the elastic diaphragm 4. This design cleverly solves the problem that the edge of the elastic diaphragm 4 may block axial flow, ensuring that the fluid in the valve cavity can be effectively collected and guided to the central outlet area regardless of the deformation position of the middle part of the elastic diaphragm 4, avoiding flow dead zones, and making the flow capacity of the main fluid channel more purely determined by the dynamic gap between the middle part of the elastic diaphragm 4 and the annular limiting platform 31, that is, determined by the upper flow gap B.

[0039] like Figure 2 , Figure 5 and Figure 6 As shown, an upper flow gap B is formed between the elastic diaphragm 4 and the annular limiting platform 31; when the elastic diaphragm 4 is compressed and its center deforms towards the upper cover 3, a lower flow gap A is formed with the sealing surface 5. The fluid has two paths, as follows:

[0040] First fluid path: such as Figure 5As shown, during the deformation of the elastic diaphragm 4, the fluid path includes at least the following in sequence: the inlet hole 20, the lower flow gap A, the lower side flow channel 36, the upper side flow channel 35, the upper flow gap B, and the outlet hole 30.

[0041] Second fluid path: such as Figure 6 As shown, when the elastic diaphragm 4 deforms to the point where its middle part fits against the end face of the annular limiting platform 31, the upper flow gap B is eliminated, and the fluid flows through the microchannel 32 to the outlet hole 30.

[0042] A more specific working principle is as follows: During normal compression of the hose 1, as the pressure increases, the middle of the elastic diaphragm 4 arches upward, the lower flow gap A appears and increases, while the upper flow gap B decreases as the elastic diaphragm 4 approaches the annular limiting platform 31. At this time, a typical fluid path is: the fluid enters from the inlet hole 20, passes through the lower flow gap B, is guided by the side lower flow channel 36 and side upper flow channel 35 on the edge of the elastic diaphragm 4, enters the valve chamber above the elastic diaphragm 4, and then passes through the shrinking upper flow gap B, finally exiting from the outlet hole 30. The dynamic shrinkage of the upper flow gap B in this path is the physical position for achieving negative feedback regulation of the flow rate. When the pressure reaches its limit and the middle of the elastic diaphragm 4 is completely in contact with the end face of the annular limiting platform 31, the upper flow gap B is completely eliminated (i.e., its value is zero), and the main channel is closed at this point. At this time, after passing through the lower flow gap A and the side flow channel, the fluid can no longer pass through the upper flow gap B, but instead flows into and passes through the microchannel 32, which serves as a constant microchannel, and finally exits from the outlet hole 30. This clearly demonstrates the seamless switching between the "main channel regulation" and "micro channel emergency" flow paths, thereby solving the problems of unstable flow rate from the hose and explosive liquid discharge under instantaneous high pressure.

[0043] The first threshold is determined by the elastic modulus of the elastic response component itself, the initial pre-tightening state, and the sealing contact area between it and the inlet 20. Moreover, the first threshold corresponds to the critical pressure required for the elastic response component to begin to disengage from the sealing state.

[0044] The first threshold is defined more precisely as the minimum critical pressure value that the low-pressure side must reach when the elastic response component (elastic diaphragm 4) changes from the "sealed inlet 20" state to the "open and elastically deformed" state.

[0045] The technical essence of the first threshold is that it represents the minimum starting pressure required for the central part of the elastic diaphragm 4 to overcome its own elasticity, pre-tightening force, and adsorption force with the sealing surface 5, thereby beginning to detach from the sealing surface 5 and open the inlet port 20. Below this value, the valve remains closed; upon reaching or exceeding this value, the valve opens and enters the flow adaptive regulation zone.

[0046] The second threshold is determined by the elastic modulus of the elastic response component, its free deformation stroke, and the spatial position of the flow-limiting structure. Moreover, the second threshold corresponds to the critical pressure required for the elastic response component to deform to contact the flow-limiting structure.

[0047] The second threshold is defined more precisely as the higher-level pressure critical value that the low-pressure side must reach when the elastic response component (elastic diaphragm 4) changes from the state of "elastic deformation" to the state of "deformation to contact with the flow-limiting structure (annular limiting stage 31)".

[0048] The technical essence of the second threshold is that it represents the upper pressure limit required to deform the middle of the elastic diaphragm 4 to fully (or nearly fully) contact the end face of the annular limiting platform 31, thereby closing or narrowing the main channel (upper flow gap B) to a minimum, forcing the fluid to flow out mainly or entirely through the microchannel 32. Upon reaching this value, the valve enters either the "instantaneous high pressure protection" or "limited flow restriction" operating mode.

[0049] These two thresholds clearly define the three core operating stages of a hose valve:

[0050] Phase 1 (P ≤ first threshold): Close the sealing phase to achieve backflow prevention function.

[0051] Phase 2 (First threshold < P < Second threshold): Adaptive flow stabilization phase. The deformation of the elastic diaphragm 4 increases with increasing pressure, but the main channel (upper flow gap B) decreases accordingly, thus achieving flow self-stabilization.

[0052] Phase 3 (P≥ second threshold): Instantaneous high pressure protection phase, the main channel function is suppressed (the upper flow gap B is completely eliminated and its value is zero), and the constant microchannel (microchannel 32) becomes dominant to achieve anti-burst liquid discharge.

[0053] In a preferred embodiment, the elastic response component is made of NBR rubber. NBR rubber possesses excellent elasticity and high resilience, ensuring that the elastic diaphragm 4 can quickly and accurately reset after numerous deformation cycles, maintaining stable sealing and dynamic response characteristics. Simultaneously, NBR rubber exhibits good resistance to various greases, chemicals, and a certain range of acidic and alkaline media, making it suitable for most daily chemical and ointment tubing contents, guaranteeing the valve's long service life and performance stability in complex environments.

[0054] The bottom cover 2 and the top cover 3 are connected by threads, snap-fit, or ultrasonic welding. Threaded connections provide strong locking force and good sealing performance, and are easy to disassemble and maintain; snap-fit ​​connections offer extremely quick assembly and are suitable for large-scale automated production; ultrasonic welding enables a strong, sealed, and permanent connection between the two plastic parts without additional materials, resulting in a clean appearance. These three methods are all mature and reliable industrial connection technologies, and can be selected according to production needs, cost considerations, and product positioning, ensuring the stability of the valve body structure and ease of manufacturing.

[0055] like Figure 1 and Figure 2 As shown, a flexible tube packaging container includes a flexible tube 1, the discharge end of which is equipped with a flexible tube valve that provides adaptive flow control and instantaneous high-pressure protection. This valve can be connected to the flexible tube via threaded connection, snap-fit ​​installation, heat fusion welding, or adhesive bonding, becoming an integral part of the flexible tube 1. This integration elevates an ordinary flexible tube into a high-performance packaging product with flow control and long-lasting freshness preservation functions, directly meeting the market's demand for high-end, user-friendly flexible tube packaging.

[0056] The flexible hose valve of this invention firstly solves the problem of air backflow in flexible hose products by fundamentally isolating the contents from air through the automatic reset and sealing of the elastic diaphragm, significantly improving the freshness and lifespan of the product. Secondly, by utilizing the dynamic change in the gap between the elastic deformation of the diaphragm and the fixed flow-limiting structure, adaptive and stable discharge flow rate is achieved. A relatively constant output flow rate can be obtained regardless of whether the user squeezes gently or forcefully, greatly improving the user experience and avoiding waste. Furthermore, by setting a microchannel as a high-pressure safety path, it ensures that even under extreme conditions of instantaneous and forceful squeezing, the liquid output will not be interrupted or burst, but will instead be converted into a controlled, minute flow rate. This fundamentally overcomes the flow control problem of existing products where "light squeezing results in no flow, heavy squeezing results in bursting flow," achieving reliable operation across the entire pressure range.

[0057] It is worth noting that the hose valve of the present invention can be used as a standard part and can be adapted to any hose, thereby playing a triple role in stabilizing the hose liquid output, preventing air from flowing back into the hose, and preventing burst discharge caused by instantaneous high pressure.

[0058] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A flexible hose valve with adaptive current stabilization and instantaneous high-pressure protection, characterized in that: include: The valve body has a valve cavity inside and is provided with an inlet and an outlet communicating with the valve cavity; An elastic response component is disposed within the valve chamber and divides the valve chamber into a low-pressure side near the inlet and a high-pressure side near the outlet. The resilient response component is configured such that: When the pressure on the low-pressure side is lower than or equal to a first threshold, it seals the inlet. Furthermore, when the pressure on the low-pressure side is higher than the first threshold, it undergoes elastic deformation to open the main fluid channel from the inlet through the valve chamber to the outlet, and the equivalent flow cross-sectional area of ​​the main fluid channel is negatively correlated with the pressure to achieve adaptive stability of the output flow rate. A flow-limiting structure is provided on the high-pressure side and connected to the liquid outlet; The elastic response component is further configured such that when the low-pressure side pressure rises to a second threshold, it deforms to contact the flow-limiting structure to close the main fluid channel, and the outlet is kept in communication with the valve chamber through at least one constant microchannel formed on the flow-limiting structure.

2. The flexible hose valve with adaptive current stabilization and instantaneous high-pressure protection according to claim 1, characterized in that: The elastic response component is a circular elastic diaphragm (4); the valve body includes a detachably connected bottom cover (2) and top cover (3), the liquid inlet is a liquid inlet hole (20) located in the center of the bottom cover (2), the liquid outlet is a liquid outlet hole (30) located in the center of the top cover (3), and the elastic diaphragm (4) is disposed in the valve cavity formed by the bottom cover (2) and the top cover (3).

3. The flexible hose valve with adaptive current stabilization and instantaneous high-pressure protection according to claim 2, characterized in that: The periphery of the liquid inlet (20) is formed with a sealing surface (5) for sealing and engaging with the center of the elastic diaphragm (4). The flow-limiting structure is an annular limiting platform (31) surrounding the liquid outlet (30) and disposed on the inner top surface of the upper cover (3). The constant microchannel is at least one microchannel (32) opened on the inner top surface of the upper cover (3) and passing through the annular limiting platform (31).

4. The flexible hose valve with adaptive current stabilization and instantaneous high-pressure protection according to claim 3, characterized in that: The inner top surface edge of the upper cover (3) is provided with an annular support (33) for axially limiting the edge of the elastic diaphragm (4), and the inner wall of the upper cover (3) is provided with a plurality of radial protrusions (34) located below the annular support (33) for radially limiting the edge of the elastic diaphragm (4).

5. The flexible hose valve with adaptive current stabilization and instantaneous high-pressure protection according to claim 4, characterized in that: The annular support (33) has at least one notch, which forms an upper side flow channel (35); the gap between adjacent radial protrusions (34) forms a lower side flow channel (36), and the upper side flow channel (35) and one of the lower side flow channels (36) are axially corresponding and connected, together forming part of the main fluid channel.

6. The flexible hose valve with adaptive current stabilization and instantaneous high-pressure protection according to claim 5, characterized in that: An upper flow gap (B) is formed between the elastic diaphragm (4) and the annular limiting platform (31); when the elastic diaphragm (4) is pressed and its center deforms toward the upper cover (3), a lower flow gap (A) is formed with the sealing surface (5). During the deformation of the elastic diaphragm (4), the fluid path includes at least the following in sequence: the inlet hole (20), the lower flow gap (A), the side lower flow channel (36), the side upper flow channel (35), the upper flow gap (B), and the outlet hole (30). When the elastic diaphragm (4) deforms to the point where its middle part fits against the end face of the annular limiting platform (31), the upper flow gap (B) is eliminated, and the fluid flows through the microchannel (32) to the outlet hole (30).

7. The flexible hose valve with adaptive current stabilization and instantaneous high-pressure protection according to claim 1, characterized in that: The first threshold corresponds to the critical pressure required for the elastic response component to begin to disengage from the sealed state; The second threshold corresponds to the critical pressure required for the elastic response component to deform to contact the flow-limiting structure.

8. The flexible hose valve with adaptive current stabilization and instantaneous high-pressure protection according to claim 1, characterized in that: The elastic response component is made of NBR rubber.

9. A flexible hose valve with adaptive current stabilization and instantaneous high-pressure protection according to claim 2, characterized in that: The bottom cover (2) and the top cover (3) are connected by threads, snaps or ultrasonic welding.

10. A flexible tube packaging container, comprising a flexible tube (1), characterized in that: The discharge end of the hose (1) is provided with a hose valve that provides adaptive flow stabilization and instantaneous high pressure protection as described in any one of claims 1 to 9.

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