A pneumatic control multi-chamber synchronous inflation and deflation air mold product

Abstract

The application discloses a kind of pneumatic control multi-chamber synchronous inflation and deflation air mould products, the coordinated action of one-way valve is driven by air pressure difference, realize the automatic control of multi-chamber synchronous inflation and deflation.It includes air chamber, air inlet channel and exhaust channel, air chamber is composed of multiple closed air chambers, each air chamber is configured with one-way air inlet valve and one-way exhaust valve;One-way air inlet valve is installed on air inlet channel and communicated with air chamber inner cavity;One-way exhaust valve is installed on exhaust channel and communicated with air chamber inner cavity;Air inlet channel and exhaust channel are equipped with air nozzle at least one end, air nozzle is equipped with sealing cover or control valve, the rest end is closed structure.

Description

Technical Field

[0001] This invention relates to the field of inflatable model products, and in particular to an inflatable model product with pneumatically controlled multi-chamber synchronous inflation and deflation. Background Technology

[0002] Inflatable products, with their core advantages of being lightweight, easy to fold and store, and convenient to transport, have been widely used in indoor and outdoor scenarios such as inflatable tents, inflatable mattresses, and inflatable water products. However, due to the complex use environment and limitations imposed by the material properties, these products are prone to damage and pose safety hazards.

[0003] To improve reliability and prevent complete gas leakage due to the rupture of a single air chamber, multi-chamber structures have emerged. This structure ensures that the remaining air chambers remain inflated even if one chamber is damaged and leaks, significantly improving the safety of inflatable models. However, existing multi-chamber inflatable models have significant limitations in their inflation and deflation operations: the mainstream method uses a chamber-by-chamber inflation and deflation mode, which not only leads to low deployment and storage efficiency but also easily causes air pressure imbalances in the chambers, affecting the stability of the product structure and the reliability of its functions.

[0004] To simplify operation, existing technologies have attempted two control schemes, but both have drawbacks: one is electromagnetic control valves, which can simultaneously control the inflation and deflation of multiple air chambers, but their application is limited due to high cost, poor durability, and the fact that metal wires severely damage the product's folding performance; the other is physical switch control, which adds an independent controllable valve to each air chamber and operates them one by one. This not only results in a complex structure and a lengthy process, but also makes it difficult to adapt to products with a large number of air chambers, failing to fundamentally solve the core contradiction between ease of operation and safety of use. Summary of the Invention

[0005] The purpose of this invention is to provide a pneumatically controlled multi-chamber synchronous inflation and deflation air model product to overcome the shortcomings in the above-mentioned background technology applications.

[0006] To achieve the above objectives, the following technical solution is adopted:

[0007] A pneumatically controlled multi-chamber synchronous inflation and deflation inflatable product includes an inflation chamber, an air inlet channel, and an exhaust channel. The inflation chamber is composed of multiple independent air chambers arranged in a row. Each air chamber is formed by its own wall, or by a combination of the air chamber wall, the air inlet channel wall, and the exhaust channel wall sharing a portion of the wall. The air chambers are not interconnected. Each air chamber is equipped with a one-way air inlet valve and a one-way air outlet valve. The one-way air inlet valve is installed through the air inlet channel wall, with its inlet end communicating with the inner cavity of the air inlet channel and its outlet end communicating with the inner cavity of the air chamber, allowing only unidirectional gas flow from the inner cavity of the air inlet channel to the inner cavity of the air chamber. An exhaust valve is installed through the wall of the exhaust channel, with its inlet end connected to the inner cavity of the air chamber and its outlet end connected to the inner cavity of the exhaust channel, allowing only unidirectional flow of gas from the inner cavity of the air chamber to the inner cavity of the exhaust channel; the air inlet channel is a closed channel, with at least one end equipped with an air inlet nozzle that can be quickly connected to an inflation device, the air inlet nozzle being fitted with an air inlet sealing cap or control valve, and the remaining ends being a closed structure; the exhaust channel is a closed channel, with at least one end equipped with an exhaust nozzle that can be quickly connected to an exhaust device, the exhaust nozzle being fitted with an exhaust channel sealing cap or control valve, and the remaining ends being a closed structure.

[0008] As a further aspect of the present invention, both the one-way intake valve and the one-way exhaust valve are pneumatically controlled one-way valves. The one-way intake valve includes a one-way intake valve body, a one-way intake valve core, and a one-way intake valve connector. The one-way exhaust valve includes a one-way exhaust valve body, a one-way exhaust valve core, and a one-way exhaust valve connector. The valve body serves as both the outer shell of the valve core and the connecting component; the connector is used for the fixed connection between the valve body and the air chamber wall, the intake channel wall, or the exhaust channel wall; the valve core is a valve device that opens based on the pressure difference between the intake and exhaust ends.

[0009] Preferably, the opening pressure of the one-way exhaust valve is equal to the normal operating pressure of the air chamber. This can prevent the valve from opening prematurely, which would prevent the air chamber from reaching its rated working pressure. On the other hand, it can ensure that the valve opens in response to the instant of overpressure in the air chamber, thus taking into account the pressure relief function and ensuring the safe operation of the air chamber.

[0010] As a further embodiment of the present invention, the intake passage and the exhaust passage can be shared.

[0011] As a further embodiment of the present invention, the air inlet channel and the air outlet channel can be replaced by one or two air chambers in a multi-chamber inflatable product that can be radially connected to other air chambers.

[0012] Preferably, the intake and exhaust channels should be flexible, bend-resistant, and aging-resistant, and the exhaust channel should have sufficient high-pressure resistance to withstand negative pressure without deformation or collapse. If the material cannot meet the high-pressure resistance requirements, a support frame can be installed inside the exhaust channel cavity to prevent deformation and collapse.

[0013] Furthermore: the support frame should be flexible and bend-resistant, and able to resist deformation that occurs during exhaust channel suction operation; the support frame does not need to fill the entire exhaust channel, but only needs to ensure normal ventilation of the exhaust channel.

[0014] The specific working principle is as follows:

[0015] During inflation, open the air inlet channel sealing cover or control valve, connect the inflation device to the air inlet channel nozzle, and start the inflation device to inflate the sealed air inlet channel cavity. The air pressure inside the air inlet channel gradually increases during inflation. When the pressure difference between the air inlet channel cavity and the air chamber cavity exceeds the opening pressure threshold of the one-way air inlet valve, all one-way air inlet valves automatically open, and airflow is simultaneously injected into all air chambers; at this time, the one-way exhaust valve remains closed because the pressure difference between the two ends does not meet the opening condition. After the air pressure in the air chamber reaches the rated operating pressure, close the inflation device. The air pressure inside the air inlet channel then decreases, and the one-way air inlet valves automatically close as the pressure difference disappears, completing the inflation process.

[0016] During evacuation, open the exhaust channel sealing cover or control valve, connect the evacuation device to the exhaust channel nozzle, and start the device to evacuate air from the sealed exhaust channel. The air pressure inside the exhaust channel gradually decreases, creating a negative pressure. When the pressure difference between the chamber of the air chamber and the chamber of the exhaust channel exceeds the opening pressure threshold of the one-way exhaust valve, all one-way exhaust valves automatically open, and the gas in each chamber is simultaneously discharged into the exhaust channel and extracted. At this time, the one-way inlet valve remains closed due to the reverse pressure difference. After the gas in the chambers is completely evacuated, turn off the evacuation device. The one-way exhaust valves automatically close due to the disappearance of the pressure difference, and the evacuation process is complete.

[0017] In summary, the present invention has the following beneficial technical effects:

[0018] This structure allows for automatic closure of the corresponding one-way inlet and one-way outlet valves when a chamber is damaged and leaks. This isolation isolates the damaged chamber from the inlet and outlet channels, preventing the remaining intact chambers from depressurizing simultaneously and maintaining structural support. This significantly improves the safety of inflatable models. The process utilizes the pressure difference to drive the coordinated action of the one-way valves, achieving automated control of simultaneous inflation and deflation of multiple chambers without manual intervention. This ensures ease of operation and avoids pressure imbalances caused by operating each chamber individually. The design simplifies the product structure, enhances durability, and balances cost control with foldable storage. Theoretically, this invention can simultaneously control the inflation and deflation of any number of independent chambers. The increased number of chambers not only significantly improves the safety of multi-chamber inflatable models but also expands their design possibilities. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Example 1.

[0020] Figure 2 A cross-sectional schematic diagram of the connection between the one-way intake valve and the intake passage wall.

[0021] Figure 3 A schematic diagram of the intake manifold nozzle and sealing cap.

[0022] Figure 4 A cross-sectional view of an exhaust channel with a support frame.

[0023] Figure 5 This is a top cross-sectional view of Example 2.

[0024] In the diagram: Inflation chamber 1, air chamber 2, air chamber wall 201, air inlet channel 41, air inlet channel nozzle 411, air inlet channel sealing cover or control valve 412, air inlet channel wall 202, exhaust channel 42, exhaust channel nozzle 421, exhaust channel sealing cover or control valve 422, exhaust channel wall 203, one-way air inlet valve 31, one-way air inlet valve body 311, one-way air inlet valve core 312, one-way air inlet valve connector 313, one-way exhaust valve 32, one-way exhaust valve body 321, one-way exhaust valve core 322, one-way exhaust valve connector 323, support frame 423, common channel 43, multi-functional nozzle 431, common channel sealing cover 432 Detailed Implementation

[0025] The inflatable model product with pneumatic control for synchronous inflation and deflation of multiple air chambers disclosed in this invention has its core inventive point in achieving coordinated inflation and deflation of multiple air chambers through a combination of "sealed channel (or alternative structure) + pneumatic one-way valve," thus solving the problems of cumbersome operation and insufficient safety of traditional products. The following detailed description, in conjunction with Figures 1 to 5, uses two typical embodiments. Each embodiment covers the technical features of claims 1 to 7, differing only in channel shape and structural layout, while maintaining the same core pneumatic control logic. The described embodiment is one of many application scenarios of this invention, not all embodiments.

[0026] Example 1: External air chamber replaces dual-channel structure (Figures 1-4)

[0027] This embodiment is an outdoor inflatable tent (combined with attachments). Figure 1The external channel facilitates maintenance and can also serve as a reinforcement structure for the product's edges. This corresponds to the core definition of claim 1 and the detailed features of claims 2, 3, 5, 6, and 7. The inflatable product is mainly composed of three core parts: an inflatable chamber (1), an air inlet channel (41), and an exhaust channel (42). Each part is made of flexible sealing material, taking into account both structural strength and folding and storage performance. Among them, the inflatable chamber (1) is the main load-bearing structure of the product. The air inlet channel (41) is arranged along the left edge of the inflatable chamber (1), and the exhaust channel (42) is arranged along the right edge of the inflatable chamber (1). Both are long, sealed channels that extend parallel to the inflatable chamber (1) to achieve centralized airflow control of multiple air chambers.

[0028] Detailed structure and working principle of each component:

[0029] 1. Inflatable chamber (1)

[0030] The inflation chamber (1) is composed of multiple parallel air chambers (2) connected by heat sealing and other processes. The top of the air chamber (2) is formed by the air inlet channel wall (202), the bottom by the air outlet channel wall (203), and the rest by the air chamber wall (201). The junction of the air chamber wall (201) with the air inlet channel wall (202) and the air outlet channel wall (203) is sealed and connected by heat sealing and other processes, forming a sealed independent air chamber (2). The air chamber wall (201) and the channel wall (202 / 203) are made of a flexible material with high toughness and tear resistance to ensure that the sealing performance of the remaining air chambers is not affected when a single air chamber is damaged, providing basic safety redundancy for the product.

[0031] 2. One-way intake valve (31) and one-way exhaust valve (32) (in conjunction with the appendix) Figure 2 )

[0032] Each air chamber (2) is equipped with a one-way air inlet valve (31) and a one-way air outlet valve (32). Both types of valves are pneumatically controlled one-way valves. In order to meet the core characteristics of lightweight and easy-to-fold inflatable products, a compact design is adopted while ensuring the air inlet and outlet volume requirements. The specific structure is as follows:

[0033] 1) Overall structure: The one-way intake valve includes a one-way intake valve body (311), a one-way intake valve core (312), and a one-way intake valve connector (313); the one-way exhaust valve includes a one-way exhaust valve body (321), a one-way exhaust valve core (322), and a one-way exhaust valve connector (323). The one-way intake valve body (311) and the one-way exhaust valve body (321) adopt a rounded, cornerless design to avoid wear and damage to the air chamber wall (201), intake channel wall (202), and exhaust channel wall (203) when the product is folded and stored; the one-way intake valve body (311) or the one-way exhaust valve body (321) serves as both the mounting shell for the one-way intake valve core (312) or the one-way exhaust valve core (322) and the fixing of the one-way intake valve connector (313) or the one-way exhaust valve connector (323).

[0034] 2) Valve cores: Both the one-way intake valve core (312) and the one-way exhaust valve core (322) adopt an opening structure driven by the pressure difference between the intake and exhaust ends (such as a spring-lift one-way valve core), and must have excellent sealing performance. Among them, the one-way intake valve core (312) is the core control unit for the inflation operation of the intake channel (41) and the air chamber (2); the one-way exhaust valve core (322) is the core control unit for the exhaust operation of the exhaust channel (42) and the air chamber (2).

[0035] Opening pressure design: The opening pressure value of the one-way exhaust valve (32) is set to be equal to the normal operating air pressure value of the air chamber (2). This ensures that the air chamber (2) meets the inflation pressure standard, and at the same time realizes automatic pressure relief in case of overpressure, ensuring safe use.

[0036] 3) Connectors

[0037] One-way intake valve (31) or one-way exhaust valve (32) is heat-sealed and fixed to the intake channel wall (202) or exhaust channel wall (203) at both ends of the air chamber (2) by one-way intake valve connector (313) or one-way exhaust valve connector (323). The material must meet two characteristics: first, it must have flexible and bend-resistant properties to meet the product folding and storage requirements; second, it must be a material that can form a stable and sealed connection with the intake channel wall (202) or exhaust channel wall (203) by heat sealing or other means (preferably thermoplastic rubber, TPU and other flexible materials).

[0038] Installation method: (refer to the attached document) Figure 2A one-way inlet valve (31) is installed through a one-way inlet valve connector (313) on the inlet channel wall (202) forming the top of the air chamber (2). The inlet end is connected to the inner cavity of the inlet channel (41), and the outlet end is connected to the inner cavity of the air chamber (2). Gas is allowed to flow unidirectionally from the inner cavity of the inlet channel (41) to the inner cavity of the air chamber (2). A one-way exhaust valve (32) is installed through a one-way exhaust valve connector (323) on the exhaust channel wall (203) forming the bottom of the air chamber (2). The inlet end is connected to the inner cavity of the air chamber (2), and the outlet end is connected to the inner cavity of the exhaust channel (42). Gas is allowed to flow unidirectionally from the inner cavity of the air chamber (2) to the inner cavity of the exhaust channel (42). The preferred connection method is heat sealing to ensure no air leakage between the connecting parts. Other equivalent sealing connection methods such as bonding and pressing can also be used.

[0039] 3. Air intake channel (41)

[0040] The intake passage is a long, sealed channel. Its structure, connection relationships, and functions are as follows (see attached diagram). Figure 1 Appendix Figure 3 ):

[0041] End structure: One axial end is fitted with an air inlet nozzle (411) by heat sealing or other sealing methods. The air inlet nozzle (411) adopts a standard quick-connect structure and can be quickly connected to inflation equipment such as an air pump. The air inlet nozzle (411) is equipped with an air inlet sealing cover or control valve (412), and the other axial end is a sealed structure.

[0042] Core function and working principle: It serves as the centralized air intake channel for each air chamber (2). When the air intake channel nozzle (411) is connected to the inflation device for inflation, the air pressure in the sealed air intake channel (41) gradually increases. When the air pressure difference between the air intake channel (41) and the air chamber (2) is greater than the opening pressure of the one-way air intake valve (31), the one-way air intake valve (31) automatically opens, and the airflow enters each air chamber (2) synchronously to complete the inflation. At this time, the one-way exhaust valve (32) is closed because the pressure difference between the two ends has not reached the opening threshold and does not participate in the work.

[0043] The function of the air intake channel sealing cover or control valve (412) is: ① to protect the internal structure of the air intake channel (41) and prevent foreign objects from entering and damaging the air intake channel wall (202) and the one-way air intake valve (31); ② in this embodiment, when the air intake channel (41) is used as the base part of the air model product, the air can maintain sufficient internal air pressure by sealing, thereby improving the overall load-bearing rigidity and stability of the base.

[0044] 5. Exhaust passage (42)

[0045] The exhaust passage (42) and the intake passage (41) are structurally symmetrical, and their detailed design and functions are as follows (refer to Figure 3 and Appendix 4). Figure 4 ):

[0046] End structure: One axial end is equipped with an exhaust channel nozzle (421) by heat sealing or other means. The exhaust channel nozzle (421) adopts a standard quick-connect design and can be quickly connected to air pumps and other air extraction equipment. The exhaust channel nozzle (421) is equipped with an exhaust channel sealing cover or control (422). The other axial end is in a sealed state.

[0047] Core function and working principle: It serves as a centralized exhaust channel for each air chamber (2). When the exhaust channel nozzle (421) is connected to the suction device to extract air, the air pressure in the sealed exhaust channel (42) gradually decreases. When the air pressure difference between the air chamber (2) and the exhaust channel (42) is greater than the opening pressure of the one-way exhaust valve (32), the one-way exhaust valve (32) automatically opens, and the gas in each air chamber (2) is simultaneously discharged into the exhaust channel (42) and discharged. At this time, the one-way inlet valve (31) remains closed due to insufficient pressure difference and does not participate in the operation.

[0048] The functions of the exhaust channel sealing cover or control valve (422) are: ① To protect the internal structure of the exhaust channel (42) and prevent foreign objects from entering and damaging the exhaust channel wall (203) and the one-way exhaust valve (32); ② To achieve pressure regulation under overpressure conditions of the air chamber: When it is necessary to improve the strength of the air model structure (e.g., to make the inflatable tent withstand strong winds), close the exhaust channel sealing cover or control valve (422) to seal the exhaust channel (42). When the air chamber (2) is overpressured, the gas in the air chamber (2) will push the one-way exhaust valve (32) to open and enter the exhaust channel (42). As the air pressure in the exhaust channel (42) increases, the one-way exhaust valve (32) will close again due to the decrease in pressure difference. This cycle repeats until the air pressure inside each air chamber (2) stabilizes at the preset rated pressure; ③ In this embodiment, when the exhaust channel (42) is used as the product base, the airtightness ensures that the internal air pressure meets the load-bearing strength requirements.

[0049] Deformation-resistant design (in conjunction with attached) Figure 4Both the intake channel (41) and the exhaust channel (42) need to be flexible, bend-resistant, anti-aging, and pressure-resistant. In particular, the exhaust channel (42) needs to withstand the pressure difference between the inside and outside during the suction operation, which is prone to deformation and collapse. Therefore, special optimization is required. In this embodiment, the exhaust channel (42) and the air chamber (2) are made of the same material (with limited pressure resistance). Therefore, a support frame (423) is installed in the cavity of the exhaust channel (42) to ensure that it can resist the negative pressure deformation during suction. The support frame (423) is preferably made of spring-shaped flexible hoses such as TPU, which are flexible, bend-resistant, and lightweight. The part near the one-way exhaust valve (32) can be fixed to the exhaust channel wall (203) by bonding or heat fusion to avoid the support frame (423) blocking the exhaust port of the one-way exhaust valve (32). The core function of the support frame (423) is to ensure that the exhaust channel (42) remains unobstructed and to ensure exhaust efficiency.

[0050] II. Example 2: Shared intake and exhaust channel structure (corresponding to the core definition of claim 1 and the detailed features of claims 2, 3, 4, and 6)

[0051] This embodiment is a multi-chamber swimming ring (in conjunction with the attached...). Figure 5 The inflatable chamber (1) is the main structure of the ring-shaped swimming ring, consisting of nine independent air chambers (2) evenly arranged along the circumference, with each air chamber being independent of the others. A common channel (43) replaces the independent air intake channel (41) and exhaust channel (42). The common channel (43) is made of TPU tubing, which not only has good high pressure resistance but also excellent folding resistance and lightness. The common channel (43) is arranged along the inner circumferential edge of the inflatable chamber (1). The junction between the common channel wall and the air chamber wall (201) that constitutes the air chamber is sealed with a high-frequency heat sealing process to ensure that the air chamber forms a leak-free, sealed buoyancy unit.

[0052] 1. Shared channel and valve adaptation design

[0053] 1). Valve layout: Each independent air chamber (2) is equipped with one set of one-way inlet valves (31) and one-way outlet valves (32). Both types of valves are pneumatically controlled one-way valves, which are installed through the radial sidewall of the common channel (43) and are evenly distributed to correspond one-to-one with the air chambers. The inlet of the one-way inlet valve (31) is connected to the inner cavity of the common channel (43), and the outlet of the one-way inlet valve (31) is connected to the inner cavity of the corresponding air chamber (2). Gas is only allowed to flow unidirectionally from the inner cavity of the common channel (43) to the inner cavity of the air chamber (2). The outlet of the one-way outlet valve (32) is connected to the inner cavity of the common channel (43), and the inlet of the one-way outlet valve (32) is connected to the inner cavity of the corresponding air chamber (2). Gas is only allowed to flow unidirectionally from the air chamber (2) to the inner cavity of the common channel (43). The one-way inlet valve is connected by a TPU material connector (313). Alternatively, the one-way exhaust valve connector (323) can be heat-sealed to the outer wall of the common channel.

[0054] Arrangement: The one-way inlet valve (31) is located on the upper half of the channel, and the one-way exhaust valve (32) is located on the lower half of the channel. The two are offset by a certain distance in the radial direction to avoid the airflow forming turbulence in the channel and ensure the airflow delivery efficiency.

[0055] 2) Air nozzle design: A multi-functional air nozzle (431) compatible with both inflation and deflation devices is installed at one end of the common channel (43). The air nozzle is a straight-tube double-adapter structure. The air nozzle is equipped with a threaded sealing cap (432). The other end of the common channel (43) adopts an injection-molded integrated sealing structure with no leakage points. When the sealing cap (432) is closed, the channel (43) forms a sealed cavity.

[0056] 2. Inflation and deflation working principle

[0057] 1).1). Inflation process: Remove the sealing cap (432) of the multi-functional air nozzle (431) and connect the quick connector of the inflation device to the air nozzle; start the inflation device, and the high-pressure airflow enters the common channel (43). Because the channel is sealed, the internal air pressure continues to rise; when the air pressure difference between the common channel (43) and the air chamber (2) reaches the opening pressure of the one-way air inlet valve (31), the one-way air inlet valve (31) opens automatically. At this time, the one-way exhaust valve (32) remains closed due to the reverse pressure, and the airflow enters the nine air chambers simultaneously; when the working air requirement of the air chamber (2) is met, turn off the inflation device and tighten the sealing cap (432) to complete the inflation.

[0058] 2). Exhaust process: This embodiment supports two modes: equipment suction and manual press exhaust, which are suitable for different usage scenarios: ① Using equipment suction mode: Remove the sealing cover (432) and connect the suction device to the air nozzle (431); start the suction device, and the air pressure in the common channel (43) gradually decreases. When the air pressure difference between the air chamber (2) and the common channel reaches the opening pressure of the one-way exhaust valve (32), the one-way exhaust valve (32) will open automatically. At this time, the one-way air inlet valve (31) will remain closed due to the reverse pressure. The gas in each air chamber (2) will be discharged into the common channel (43) and discharged by the suction device. After the gas in the air chamber (2) is emptied, the suction device will be turned off and the sealing cover will be tightened to complete the exhaust. ② Manual press exhaust mode (suitable for scenarios without air extraction equipment): Remove the sealing cap (432) to connect the common channel (43) with the atmosphere; press each air chamber (2) in sequence along the circumference by hand. The air pressure in the air chamber increases due to compression. When the air pressure difference formed with the common channel (atmospheric pressure) exceeds the opening pressure of the one-way exhaust valve (32), the one-way exhaust valve (32) will open automatically. At this time, the one-way air inlet valve (31) will remain closed due to reverse pressure. The gas in the air chamber (2) will be discharged into the common channel (43) through the valve and released to the atmosphere. After all the air chambers are pressed, the gas will be exhausted, the one-way exhaust valve (32) will close automatically, tighten the sealing cap, and the exhaust will be completed.

[0059] In summary, the pneumatically controlled multi-chamber synchronous inflation and deflation air model product disclosed in this invention addresses the core pain points of existing multi-chamber inflation products, such as cumbersome operation, insufficient safety, structural redundancy, and cost imbalance. It achieves centralized synchronous inflation and deflation of multiple chambers through pneumatic control logic.

[0060] The above are preferred embodiments of the present invention and are not intended to limit the scope of protection of this application. According to relevant provisions of the Patent Law, any equivalent substitutions, structural improvements, principle derivations, or shape optimizations made based on the technical solutions, structural principles, or design concepts of this application shall be deemed to fall within the scope of protection of this application.

Claims

1. A pneumatically controlled multi-chamber synchronous inflation and deflation inflatable product, comprising an inflation chamber (1), an air inlet channel (41), and an exhaust channel (42), characterized in that: The air chamber (1) is composed of multiple independent air chambers (2). Each air chamber (2) is formed by an air chamber wall (201) alone, or by a combination of the air chamber wall (201) and the air inlet channel wall (202) and the exhaust channel wall (203) sharing a part of the wall. Each air chamber (2) is not interconnected. Each of the air chambers (2) is equipped with a one-way inlet valve (31) and a one-way outlet valve (32). The one-way inlet valve (31) is installed through the wall of the inlet channel (202), with the inlet end connected to the inner cavity of the inlet channel (41) and the outlet end connected to the inner cavity of the air chamber (2). It allows gas to flow unidirectionally from the inner cavity of the inlet channel (41) to the inner cavity of the air chamber (2). The one-way outlet valve (32) is installed through the wall of the outlet channel (203), with the inlet end connected to the inner cavity of the air chamber (2) and the outlet end connected to the inner cavity of the outlet channel (42). It allows gas to flow unidirectionally from the inner cavity of the air chamber (2) to the inner cavity of the outlet channel (42). The air intake channel (41) is a closed channel, at least one end of which is equipped with an air intake channel nozzle (411) that can be quickly connected to the inflation device. The air intake channel nozzle (411) is equipped with an air intake channel sealing cover or control valve (412), and the other ends are closed structures. The exhaust channel (42) is a closed channel, with at least one end equipped with an exhaust channel nozzle (421) that can be quickly connected to the air extraction equipment. The exhaust channel nozzle (421) is equipped with an exhaust channel sealing cover or control valve (422), and the other ends are closed structures.

2. The pneumatically controlled multi-chamber synchronous inflation and deflation inflatable product according to claim 1, characterized in that: The one-way inlet valve (31) and the one-way outlet valve (32) are both pneumatically controlled one-way valves. The one-way inlet valve includes a one-way inlet valve body (311), a one-way inlet valve core (312), and a one-way inlet valve connector (313). The one-way outlet valve includes a one-way outlet valve body (321), a one-way outlet valve core (322), and a one-way outlet valve connector (323).

3. A pneumatically controlled multi-chamber synchronous inflation and deflation inflatable product according to claim 1 or 2, characterized in that: The opening pressure of the one-way exhaust valve (32) is equal to the normal operating pressure of the air chamber (2).

4. The pneumatically controlled multi-chamber synchronous inflation and deflation inflatable product according to claim 1, characterized in that: The intake passage (41) and exhaust passage (42) can be shared.

5. A pneumatically controlled multi-chamber synchronous inflation and deflation inflatable product according to claim 1 or 4, characterized in that: The air intake channel (41) and exhaust channel (42) can also be replaced by one or two air chambers (2) in a multi-chamber air model product that can be radially connected to other air chambers.

6. A pneumatically controlled multi-chamber synchronous inflation and deflation inflatable product according to claim 1 or 4, characterized in that: The intake channel (41) and exhaust channel (42) should be flexible, bend-resistant and anti-aging. The exhaust channel (42) should have sufficient high pressure resistance and be able to withstand the negative pressure of air extraction without deformation or collapse. If the material cannot meet the high pressure resistance, a support frame (423) can be installed in the cavity of the exhaust channel (42) to prevent it from deforming and collapsing.

7. The pneumatically controlled multi-chamber synchronous inflation and deflation inflatable product according to claim 6, characterized in that: The support frame (423) shall be lightweight, flexible and bend-resistant, and able to resist deformation that occurs when the exhaust channel is working. The support frame (423) does not need to fill the entire cavity of the exhaust channel (42), but it is sufficient to ensure that the exhaust channel (42) can be properly ventilated.

Images