Novel air valve for balls

Abstract

The utility model relates to the technical field of balls for sports, in particular to a novel air valve for balls, which comprises a body and a bonding layer, the body is integrally formed by injection molding, a circular sheet is arranged at the upper end of the body, the bonding layer is arranged at the upper end of the circular sheet, an inflation hole is arranged at the upper end of the body, a groove part and a boss part are arranged on the body, and a sealing head is arranged at the lower end of the boss part. The groove part and the boss part are matched with the inner container air channel to be attached and sealed, the sealing head is a flexible rubber solid body, during air inflation, the air inflation ball needle can pierce the sealing head to conduct air inflation, the air inflation ball needle is pulled out after air inflation is completed, the flexible rubber solid body automatically seals the air channel, and the inner container of the ball and the outer skin of the ball can be firmly fixed to an air valve through mucilage glue. The liner and the outer skin are not easy to be degummed after being used for a long time.

Description

Technical Field

[0001] This utility model relates to the technical field of air valves for balls, and specifically to a new type of air valve for balls. Background Technology

[0002] The valve technology for sports balls has evolved from traditional hand-tied valves to modern invisible valves. The core function is to optimize inflation sealing and ball structure stability. Early footballs used animal bladders as inner bladders, and after inflation, the opening had to be manually tied with leather ropes, similar to the way shoelaces were tied, which resulted in poor air tightness and easy deformation of the ball.

[0003] The invention of the invisible air valve in the 20th century led to the use of this technology in the ball used in the Brazil World Cup. This technology replaced the traditional seam and achieved more convenient inflation and sealing through a built-in one-way valve structure, resulting in a more seamless appearance for the ball.

[0004] Improved sealing: The concealed air valve, with its elastic material precisely fitted to the valve body, effectively prevents air leakage and extends the time the air pressure inside the ball is maintained. The integrated design of the air valve and the ball reduces external protrusions, minimizes air resistance interference with the movement trajectory, and improves ball contact stability.

[0005] A problem with current ball valves is that the inner liner and outer skin of the ball are not securely fixed to the valve. After prolonged use, the valve is prone to delamination from the inner liner and outer skin, leading to air leakage. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by providing a new type of ball valve with a scientifically designed structure that allows the inner liner of the ball and the outer skin of the ball to be firmly glued to the valve. This prevents the valve from easily coming off the inner liner and outer skin even after prolonged use, ensuring long-term airtightness.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A novel ball valve includes a body and an adhesive layer. The body is integrally injection molded. The upper end of the body is a circular sheet with an adhesive layer at the upper end. The upper end of the body has an inflation hole. The body has a groove and a boss. The lower end of the boss has a sealing head. The groove and the boss fit together with the inner air passage for sealing. The sealing head is a flexible solid rubber body.

[0009] The adhesive layer is a canvas layer with high friction.

[0010] The bottom end of the inner diameter of the inflation hole is connected to the sealing head to form a sealing hole.

[0011] The protrusion is a frustum-shaped ring.

[0012] The beneficial effects of this utility model are as follows: A novel ball valve has a body integrally injection molded. The upper end of the body is a circular thin sheet with an adhesive layer. The upper end of the body has an inflation hole. The body has a groove and a boss. The lower end of the boss has a sealing head. The groove and the boss fit together with the inner bladder air passage for sealing. The sealing head is a flexible rubber solid body. When inflating, the inflation needle will puncture the sealing head to inflate. After inflation is complete, the inflation needle is removed, and the flexible rubber solid body automatically seals the air passage to ensure no air leakage. This allows the inner bladder of the ball and the outer skin of the ball to be firmly glued to the valve. It is not easy to detach from the inner bladder and outer skin after long-term use, and it will not leak for a long time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0015] Figure 3 This is a structural schematic diagram of an embodiment of the present utility model. Detailed Implementation

[0016] See Figures 1 to 3 As shown: A novel ball valve includes a body 1 and an adhesive layer 2. The body 1 is integrally injection molded. The upper end of the body 1 is a circular thin sheet, and the adhesive layer 2 is provided on the upper end of the circular thin sheet. An inflation hole 3 is provided on the upper end of the body 1. The body 1 has a groove 4 and a boss 5. A sealing head 6 is provided at the lower end of the boss 5. The sealing head 6 is a flexible solid rubber body. The groove 4 and the boss 5 fit together with the inner air passage for sealing. When inflating, the inflation needle will puncture the sealing head 6 to inflate. After inflation is completed, the inflation needle is pulled out, and the flexible solid rubber body automatically seals the air passage to ensure no air leakage.

[0017] The second adhesive layer is a canvas layer with high friction. The upper surface of the canvas layer is coated with glue, which makes it easier to bond and fix it firmly to the outer skin of the ball.

[0018] The bottom of the inner diameter of the inflation hole 3 connects to the sealing head 6 to form a sealing hole, which is used to inflate the ball. An internal one-way check structure is provided, which automatically compresses the ball after inflation using the air pressure inside, further blocking the reverse leakage path of gas.

[0019] The boss part 5 is a circular cone, which provides better sealing and is not easy to fall off.

[0020] The air valve of a sports ball (such as a football, volleyball, or basketball) is directly embedded in the bladder 8. The bladder 8 is usually made of latex or rubber. The bladder 8 is connected to the ball skin (made of polyurethane or synthetic leather) through an adhesive process. The adhesive layer 2 at the outlet of the air valve is a canvas layer with high friction. Glue is applied to the canvas layer to precisely match the opening of the ball skin, forming an integrated structure that replaces the traditional sewn opening. This reduces the impact of external protrusions on the aerodynamics of the ball and prevents the interface from cracking due to pressure changes after inflation.

[0021] The main body 1 and the sphere are reliably connected through precise structural design and material adaptation. The core objective is to balance airtightness, durability and aerodynamic performance.

[0022] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A new type of ball valve for gas, comprising a body (1), a bonding layer (2), characterized in that: The body (1) is integrally injection molded, the upper end of the body (1) is a circular sheet, the upper end of the circular sheet is provided with an adhesive layer (2), the upper end of the body (1) is provided with an inflation hole (3), the body (1) is provided with a groove portion (4) and a boss portion (5), the lower end of the boss portion (5) is provided with a sealing head (6), and the sealing head (6) is a flexible rubber solid body.

2. A new type of air valve for ball games as claimed in claim 1, characterized in that: The adhesive layer (2) is a canvas layer with large friction.

3. A new type of air valve for ball games as claimed in claim 1, wherein: The inner diameter bottom end of the inflation hole (3) is connected with the sealing head (6), so as to form a sealed hole.

4. A new type of air valve for ball games as claimed in claim 1, wherein: The boss portion (5) is a circular conical frustum.

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