Air-nozzle-free one-way air valve

Abstract

The utility model relates to the technical field of valves, in particular to an air-nozzle-free one-way air valve which comprises a sealing face, an air inlet hole is formed in the surface of the sealing face, an air inlet cover covers the outer side of the air inlet hole, a plurality of air inlet grooves are formed in the position, located on the outer side of the air inlet hole, of the surface of the sealing face, and one-way passing assemblies are arranged at the positions, close to the air inlet grooves, of the inner side of the air inlet cover. When the outside of the air inlet cover is inflated, air enters the air inlet from the air inlet groove through the one-way passing assembly, and the air in the air inlet is prevented from overflowing outwards through the one-way passing assembly. According to the one-way air valve without the air nozzle, a traditional air nozzle component is omitted, the whole structure is simpler, and the manufacturing cost and the assembling difficulty are reduced. Through close fit of the sealing face, the air inlet cover and the one-way passing assembly, a good sealing effect is achieved, air leakage is effectively prevented, and the inflation maintaining performance of a product is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a one -way air valve without air cock. BACKGROUND

[0002] In many products, such as inflatable cushions, inflatable bags, life jackets and other items that need to be inflated or sealed with gas, one-way air valves play a key role. Traditional one-way air valves often have complex structures and usually include components such as air cocks. This complex structure not only increases the cost of production, but also is prone to damage, air leakage and other problems during use. As a prominent part of the one-way air valve, the air cock may also be damaged by external impact during the use, transportation or storage of the product, thereby affecting the sealing performance and one-way air function of the air valve.

[0003] In addition, the presence of the air cock may also affect the overall aesthetics and portability of the product. Especially in some products with high appearance requirements, the air cock may destroy the overall design of the product. At the same time, the air cock may also become an obstacle when carrying or storing the product, increasing the volume and weight of the product and reducing the portability of the product. SUMMARY

[0004] The purpose of the utility model is to provide a one-way air valve without air cock to solve the problem that the air cock as a prominent part of the one-way air valve may be damaged by external impact during the use, transportation or storage of the product, thereby affecting the sealing performance and one-way air function of the air valve.

[0005] To achieve the above purpose, the utility model provides a one-way air valve without air cock, which comprises a sealing surface, the surface of the sealing surface is provided with an air inlet hole, the outer side of the air inlet hole is covered with an air inlet cover, the surface of the sealing surface is provided with a plurality of air inlet grooves on the outer side of the air inlet hole, the inner side of the air inlet cover is provided with a one-way passing assembly near the air inlet groove, when the air inlet cover is inflated, the gas enters the air inlet hole through the one-way passing assembly from the air inlet groove, and the one-way passing assembly prevents the gas in the air inlet hole from overflowing outward.

[0006] As a preferred, the air inlet hole is a circular structure, the air inlet cover is a circular structure, and the diameter of the air inlet cover is greater than the diameter of the air inlet hole.

[0007] As a preferred, the air inlet grooves are arranged in a ring shape on the outer side of the air inlet hole, and the length direction is along the diameter direction of the air inlet hole.

[0008] As a preferred, the one-way passing assembly comprises a one-way air sleeve, and the inside of the one-way air sleeve is provided with a plurality of one-way air flaps along the length direction.

[0009] Preferably, the one-way ventilation baffle is composed of two symmetrically arranged valve petals, one end of which is bonded to the inner wall of the one-way ventilation sleeve, and the other end is obliquely arranged towards the one end of the air inlet hole, and the two valve petals are closely attached to each other.

[0010] Preferably, one end of the air inlet groove is connected with the air inlet hole, and the other end extends to the outside of the air inlet cover.

[0011] Preferably, the sealing surface and the air inlet cover are both made of polyurethane film material, and the sealing surface and the air inlet cover are combined and formed by high-frequency heat pressing.

[0012] Preferably, the one-way ventilation baffles are arranged at equal intervals along the inner part of the one-way ventilation sleeve, and the outer wall of the one-way ventilation sleeve is closely bonded to the inner wall of the air inlet groove.

[0013] Compared with the prior art, the utility model has the beneficial effects of:

[0014] In the air valve without air nozzle, the traditional air nozzle component is omitted, the overall structure is more simple, and the manufacturing cost and assembly difficulty are reduced. Through the close cooperation of the sealing surface, the air inlet cover and the one-way passing assembly, good sealing effect is realized, gas leakage is effectively prevented, and the inflation retention performance of the product is ensured. The one-way ventilation baffle in the one-way passing assembly is designed ingeniously, can allow gas to pass from the air inlet groove and enter the air inlet hole during inflation, and can prevent gas from overflowing out of the air inlet hole in the non-inflation state, ensuring the reliability and stability of one-way ventilation.

[0015] Since the air nozzle component is omitted, the one-way air valve is more neat and beautiful in appearance, and the volume and weight of the product are reduced, improving the portability of the product. Made of polyurethane film material, it has good flexibility and durability, can adapt to different use environments and product shape requirements, and prolongs the service life of the product. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the inside structure of the sealing surface in the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the one-way passing assembly in the utility model;

[0019] Figure 4 It is a schematic diagram of the surface structure of the sealing surface in the utility model;

[0020] The meanings of the various reference signs in the drawings are as follows:

[0021] 1, sealing surface; 11, air inlet hole; 2, air inlet cover; 3, air inlet groove; 4, one-way passing assembly; 41, one-way air sleeve; 42, one-way air baffle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] The utility model provides a kind of one-way air valve without air nozzle, as shown in Figures 1-4 The surface of sealing surface 1 is provided with air inlet hole 11, the outside of air inlet hole 11 is covered with air inlet cover 2, the surface of sealing surface 1 is provided with several air inlet grooves 3 at the outside of air inlet hole 11, the inside of air inlet cover 2 is provided with one-way passing assembly 4 near air inlet groove 3, when air inlet cover 2 is inflated from outside, gas enters air inlet hole 11 from air inlet groove 3 through one-way passing assembly 4, and one-way passing assembly 4 prevents gas in air inlet hole 11 from overflowing outward. By ingeniously setting air inlet hole 11 on sealing surface 1 and covering air inlet cover 2, and setting several air inlet grooves 3 at the outside of air inlet hole 11 and one-way passing assembly 4 on the inside of air inlet cover 2 near air inlet groove 3, efficient and reliable one-way air function is realized. When air inlet cover 2 is inflated from outside, gas can smoothly enter air inlet hole 11 from air inlet groove 3 through one-way passing assembly 4, and the inflation process is completed; the design of one-way passing assembly 4 effectively prevents gas in air inlet hole 11 from overflowing outward, ensuring the sealing property and one-way air property of the air valve. This structural design not only simplifies the structure of the air valve, but also improves its use reliability and convenience. In addition, the internal pressure of sealing surface 1 is large, so that one-way passing assembly 4 between sealing surface 1 and air inlet cover 2 is extruded, thereby ensuring the sealing property and improving the sealing effect. Air inlet cover 2 is located at the outside of sealing surface 1, and the inside of sealing surface 1 is a gas storage space.

[0024] In this embodiment, air inlet hole 11 is a circular structure, air inlet cover 2 is a circular structure, and the diameter of air inlet cover 2 is greater than the diameter of air inlet hole 11. Air inlet hole 11 is designed as a circular structure, air inlet cover 2 is also a circular structure and has a diameter greater than that of air inlet hole 11, which enables air inlet cover 2 to completely cover air inlet hole 11, provides effective protection, and facilitates uniform distribution and inflow of gas during the inflation process.

[0025] Specifically, the air inlet grooves 3 are arranged annularly outside the air inlet hole 11 and have a length direction along a diameter direction of the air inlet hole 11. This arrangement increases the number of gas inlet channels, improves the air charging efficiency, and ensures that the gas can flow into the air inlet hole 11 uniformly and smoothly.

[0026] Further, the one-way passing assembly 4 comprises a one-way air passing sleeve 41, and a plurality of one-way air passing baffles 42 are arranged in the one-way air passing sleeve 41 along the length direction. This structure design realizes one-way air passing of the gas, that is, allows the gas to pass in the air charging state and prevents the gas from overflowing in the non-air charging state, thereby ensuring one-way air passing and sealing of the air valve.

[0027] Further, the one-way air passing baffles 42 are composed of two symmetrical valve leaflets, one end of each valve leaflet is bonded to the inner wall of the one-way air passing sleeve 41, the other end of each valve leaflet is arranged obliquely towards one end of the air inlet hole 11, and the two valve leaflets are tightly attached to each other. This design allows the valve leaflets to open to allow the gas to pass in the air charging state, and tightly close to effectively prevent the gas from overflowing in the non-air charging state.

[0028] Further, one end of the air inlet groove 3 is connected to the air inlet hole 11, and the other end extends to the outside of the air inlet cover 2. This design allows the gas to directly pass through the air inlet groove 3 from the outside of the air inlet cover 2 into the air inlet hole 11, thereby improving the convenience and efficiency of air charging.

[0029] Further, the sealing surface 1 and the air inlet cover 2 are made of polyurethane film material, and the sealing surface 1 and the air inlet cover 2 are formed by high-frequency hot pressing. This material and forming method ensure that the sealing surface 1 and the air inlet cover 2 are tightly attached and have good sealing performance, and improve the durability and reliability of the air valve.

[0030] Further, the one-way air passing baffles 42 are arranged at equal intervals along the inside of the one-way air passing sleeve 41, and the outer wall of the one-way air passing sleeve 41 is tightly bonded to the inner wall of the air inlet groove 3. This arrangement and bonding method ensure the stability and uniformity of the one-way air passing baffles 42 in the one-way air passing sleeve 41, and improve the one-way air passing performance and sealing performance of the air valve.

[0031] In use, the air valve is in an uncharged state, the sealing surface 1 and the air inlet cover 2 are tightly attached by the one-way passing assembly 4, and the initial sealing performance of the air valve is ensured. The one-way air passing baffles 42 are in a tightly closed state in the one-way air passing sleeve 41, and any gas is prevented from overflowing from the air inlet hole 11.

[0032] When the air is filled from the outside of the air inlet cover 2, the gas first contacts the air inlet groove 3. The air inlet groove 3 is arranged annularly outside the air inlet hole 11, increases the number of channels for the gas to enter, and enables the gas to flow to the air inlet hole 11 uniformly and smoothly. The gas enters the one-way passing assembly 4 through the air inlet groove 3, specifically, enters the inside of the one-way air passing sleeve 41. Under the action of the filling pressure, the valve of the one-way air passing baffle 42 is opened, allowing the gas to pass through and enter the air inlet hole 11. The gas enters the space inside the sealing surface 1 through the air inlet hole 11, and the filling process is completed.

[0033] After the filling is completed, the external filling pressure disappears, the valve of the one-way air passing baffle 42 is tightly closed under the action of its own elasticity and the internal pressure of the air valve, preventing the gas in the air inlet hole 11 from overflowing outward. The internal pressure of the sealing surface 1 is large, so that the one-way passing assembly 4 between the sealing surface 1 and the air inlet cover 2 is extruded, further enhancing the sealing performance. The sealing surface 1 and the air inlet cover 2 are both made of polyurethane film material and are formed by high-frequency hot pressing compounding, which ensures the close fit and good sealing performance between the two.

[0034] The one-way air passing baffles 42 are arranged at equal intervals along the inside of the one-way air passing sleeve 41, and the outer wall of the one-way air passing sleeve 41 is tightly bonded with the inner wall of the air inlet groove 3, which ensures the stability and uniformity of the one-way air passing baffles 42 in the one-way air passing sleeve 41. This structure design enables the air valve to maintain stable one-way air passing performance and sealing performance during long-term use, improving the durability and reliability of the air valve.

[0035] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A valve without a valve stem, comprising a sealing surface (1), characterized in that: An air inlet (11) is provided on the surface of the sealing surface (1). An air inlet cover (2) covers the outside of the air inlet (11). Several air inlet grooves (3) are provided on the surface of the sealing surface (1) outside the air inlet (11). A one-way passage component (4) is provided on the inner side of the air inlet cover (2) near the air inlet groove (3). When the air inlet cover (2) is inflated, the gas enters the air inlet (11) from the air inlet groove (3) through the one-way passage component (4). The one-way passage component (4) prevents the gas in the air inlet (11) from overflowing outward.

2. The valve without a nozzle for one-way air supply according to claim 1, characterized in that: The air inlet (11) is circular, the air inlet cover (2) is circular, and the diameter of the air inlet cover (2) is larger than the diameter of the air inlet (11).

3. The valve without a nozzle for one-way air supply according to claim 2, characterized in that: The air inlet groove (3) is arranged in a ring around the air inlet hole (11), and its length direction is along the diameter direction of the air inlet hole (11).

4. The valve without a nozzle for one-way air supply according to claim 1, characterized in that: The one-way passage component (4) includes a one-way ventilation sleeve (41), and the interior of the one-way ventilation sleeve (41) is provided with a plurality of one-way ventilation baffles (42) along the length direction.

5. The valve without a nozzle for one-way air supply according to claim 4, characterized in that: The one-way ventilation baffle (42) consists of two symmetrically arranged valves, one end of which is bonded to the inner wall of the one-way ventilation sleeve (41), and the other end is inclined toward the air inlet (11), with the two valves tightly fitted together.

6. The valve without a nozzle for one-way air supply according to claim 1, characterized in that: One end of the air inlet groove (3) is connected to the air inlet hole (11), and the other end extends to the outside of the air inlet cover (2).

7. The valve without a nozzle for one-way air supply according to claim 1, characterized in that: The sealing surface (1) and the air inlet cover (2) are both made of polyurethane film material, and the sealing surface (1) and the air inlet cover (2) are formed by high-frequency hot pressing.

8. The valve without a nozzle for one-way air supply according to claim 5, characterized in that: The one-way ventilation baffles (42) are arranged at equal intervals along the inside of the one-way ventilation sleeve (41), and the outer wall of the one-way ventilation sleeve (41) is tightly bonded to the inner wall of the air inlet groove (3).

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