Closed cell aerated product backflow prevention aerating system
By using a one-way valve and quick-connect design in the closed-loop inflatable product, the problem of air leakage after inflation is solved, achieving one-way gas flow, simplifying operation, and making it suitable for remote and automatic control closed-loop inflatable systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU JIAERKE SIMULATION EQUIP CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-16
AI Technical Summary
Existing sealed inflatable products are prone to air leakage after inflation, and the operation of replenishing air is cumbersome, especially in remote operation or automatic control scenarios where air leakage is difficult to avoid.
The design employs a one-way valve, including a quick connector and a flexible plate structure, to ensure that gas can only flow in from the inlet and cannot flow back from the outlet. By installing a one-way valve and a quick connector on the inflation line, one-way gas flow is achieved.
It effectively prevents gas backflow after inflation, simplifies the operation process, and ensures that the sealed inflation product does not leak air without disconnecting the inflation line, making it suitable for remote and automatic control scenarios.
Smart Images

Figure CN224364418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product inflation technology, specifically a closed-type anti-backflow inflation system for inflatable products. Background Technology
[0002] The inflation system of a closed-loop inflatable product typically includes an inflator for regulating inflation and deflation, and piping for gas flow. In existing inflation systems, once the inflator is turned off after inflation, the gas inside the product escapes through the valve along the inflation piping and into the inflator's air inlet, causing leakage. This necessitates disconnecting the inflation piping and closing the valve after each inflation cycle, and reconnecting the inflation piping when the product pressure is too low, making the process cumbersome.
[0003] In addition, since many sealed products are installed in scenarios that require remote operation or automatic control, when the internal air pressure of the product is too low, it may be necessary to remotely switch the switch connected to the power supply of the inflator to control the inflator to pressurize the inside of the product. In either case, air leakage is inevitable during the inflation or deflation process.
[0004] Therefore, we propose a closed-loop anti-backflow inflation system for inflatable products to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to provide a closed-loop inflation system for inflatable products to prevent backflow, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A closed-loop inflatable product anti-backflow inflation system includes an inflator and an inflation component, characterized in that one end of the inflation component is connected and fixed to the inflator, and a one-way valve is provided on the inflation component, with an elastic plate elastically arranged inside the one-way valve.
[0008] According to the above technical solution, the inflation assembly also includes quick connector one, quick connector two, and air hose. There are two quick connectors one, one of which is connected to the inflator and the other is connected to one end of the air hose. Quick connector two is installed on the other end of quick connector one that is close to the inflator. A one-way valve is installed between quick connector two and quick connector one that is close to the air hose.
[0009] According to the above technical solution, the gas flow direction in the one-way valve is from the air inlet to the air pipe.
[0010] According to the above technical solution, a protrusion integrally connected to the inner wall of the one-way valve is provided. The protrusion is arranged in a ring-shaped structure. An elastic sheet is movable on one side of the protrusion. The elastic sheet is arranged in a disc-shaped structure. The diameter of the elastic sheet is greater than the minimum diameter of the protrusion and less than the maximum diameter of the protrusion.
[0011] According to the above technical solution, a connecting frame is also provided between the inner walls of the one-way valve and integrated with it. A through hole is opened in the middle of the connecting frame. A piston shaft is provided on the side wall of the elastic plate facing the connecting frame. The other end of the piston shaft always passes through the through hole and slides in contact with it. A spring is sleeved on the outside of the piston shaft.
[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0013] By installing quick connector one, quick connector two, and a one-way valve on the inflation line, the one-way channel of the one-way valve ensures that gas can only flow in from the inlet and out from the outlet, preventing backflow from the outlet. This effectively solves the problem of air leakage even if the inflation line is not removed. Attached Figure Description
[0014] Figure 1 This is a connection diagram of this utility model;
[0015] Figure 2 yes Figure 1 A top-view structural diagram;
[0016] Figure 3 This is a structural schematic diagram of the quick connector of this utility model;
[0017] Figure 4 This is a structural schematic diagram of the second quick connector of this utility model;
[0018] Figure 5 This is a schematic diagram of the one-way valve of this utility model;
[0019] Figure 6 This is a cross-sectional view of the one-way valve of this utility model.
[0020] In the diagram: 1. Inflator; 2. Quick connector one; 3. Quick connector two; 4. One-way valve; 41. Protrusion; 42. Elastic sheet; 421. Piston shaft; 43. Connecting frame; 5. Air hose. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-6 The present invention provides the following technical solution:
[0023] A closed-loop anti-backflow inflation system for inflatable products includes an inflator 1 and an inflation assembly. The inflator assembly is characterized by one end being fixedly connected to the inflator 1, and a one-way valve 4 being provided on the inflation assembly. An elastic plate 42 is elastically provided inside the one-way valve 4. One end of an air hose 5 is fixedly connected to a connector. The inflation assembly also includes a quick connector 1 2, a quick connector 2 3, and the air hose 5. Two quick connectors 1 2 are provided; one quick connector 1 2 is connected to the inflator 1, and the other quick connector 1 2 is connected to one end of the air hose 5. The quick connector 2 3 is installed on the other end of the quick connector 1 2 that is close to the inflator 1. The one-way valve 4 is installed between the quick connector 2 3 and the quick connector 1 2 that is close to the air hose 5.
[0024] It should be further noted that quick connector 1 (2), quick connector 2 (3), and check valve 4 should be arranged as follows: Figure 2 The positions shown are connected and installed sequentially between the inflator 1 and the air pipe 5. The other end of the air pipe 5 can be connected to the closed-type inflatable product to be inflated. During inflation, the gas flows from the inlet of the one-way valve 4 to the outlet and continues to flow towards the outlet side, thereby inflating the closed-type inflatable product. After inflation is completed, the one-way valve 4 automatically closes the channel, so that the gas cannot flow from the outlet to the inlet side, thus avoiding backflow.
[0025] The gas flow direction in the one-way valve 4 is from the air inlet to the air pipe 5. A protrusion 41 is integrally formed between the inner walls of the one-way valve 4. The protrusion 41 is arranged in a ring shape. An elastic plate 42 is movable on one side of the protrusion 41. The elastic plate 42 is arranged in a disc shape. The diameter of the elastic plate 42 is larger than the minimum diameter of the protrusion 41 and smaller than the maximum diameter of the protrusion 41. A connecting frame 43 is also integrally formed between the inner walls of the one-way valve 4. A through hole is opened in the middle of the connecting frame 43. A piston shaft 421 is arranged on the side wall of the elastic plate 42 facing the connecting frame 43. The other end of the piston shaft 421 always passes through the through hole and slides in contact with it. A spring is sleeved on the outside of the piston shaft 421.
[0026] It should be further explained that when gas enters the inlet of the one-way valve 4, under the thrust of the airflow, the elastic plate 42 moves away from the protrusion 41, allowing the gas to flow through the gap between the elastic plate 42 and the protrusion 41 and towards the outlet of the one-way valve 4, thus achieving the effect of airflow conduction. When the airflow stops, the elastic plate 42 is pushed to the side of the protrusion 41 by the reaction force of the spring and fits tightly against the protrusion 41, thereby blocking the gap between the protrusion 41 and the elastic plate 42 and thus achieving the blocking of gas backflow.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A closed-loop anti-backflow inflation system for inflatable products, comprising an inflator (1) and an inflation assembly, characterized in that, One end of the inflation component is connected and fixed to the inflation machine (1), and a one-way valve (4) is provided on the inflation component, with an elastic plate (42) elastically provided inside the one-way valve (4).
2. The closed-loop anti-backflow inflation system for inflatable products according to claim 1, characterized in that, The inflation assembly also includes quick connector one (2), quick connector two (3) and air tube (5). There are two quick connectors one (2), one of which is connected to the inflator (1) and the other is connected to one end of the air tube (5). Quick connector two (3) is installed on the other end of quick connector one (2) which is close to the inflator (1). One-way valve (4) is installed between quick connector two (3) and quick connector one (2) which is close to the air tube (5).
3. The closed-loop anti-backflow inflation system for inflatable products according to claim 2, characterized in that, The gas flow direction in the one-way valve (4) is from the air inlet to the air pipe (5).
4. The closed-loop anti-backflow inflation system for inflatable products according to claim 3, characterized in that, The inner wall of the one-way valve (4) is provided with a protrusion (41) integrally connected to it. The protrusion (41) is arranged in a ring shape. The elastic plate (42) is movable on one side of the protrusion (41). The elastic plate (42) is arranged in a disc shape. The diameter of the elastic plate (42) is greater than the minimum diameter of the protrusion (41) and less than the maximum diameter of the protrusion (41).
5. The closed-loop anti-backflow inflation system for inflatable products according to claim 4, characterized in that, A connecting frame (43) is also provided between the inner walls of the one-way valve (4). A through hole is provided in the middle of the connecting frame (43). A piston shaft (421) is provided on the side wall of the elastic plate (42) facing the connecting frame (43). The other end of the piston shaft (421) always passes through the through hole and slides in contact with it. A spring is sleeved on the outside of the piston shaft (421).