Balloon with one-way valve

Abstract

A balloon with a one-way valve, comprising a balloon body and a one-way valve, the balloon body having a balloon bag, a balloon neck, a balloon mouth roll edge, the balloon mouth roll edge being located at the edge of the balloon neck; the one-way valve having an inflation nozzle, a valve body cavity, a valve core piece, the valve core piece being located in the valve body cavity, the valve body cavity being provided with an upper side air hole and a lower side air hole, a circular annular rib being formed on the outer periphery of the one-way valve; a circular annular pressing ring made of hard material is further arranged above the circular annular rib, the space between the edge part of the circular annular pressing ring and the circular annular rib is formed into a circular annular clamping groove, the slot opening of the clamping groove is oriented in the radial direction of the valve body of the one-way valve; the balloon mouth roll edge is embedded in the circular annular clamping groove, and the balloon mouth roll edge is tightly clamped from the axial direction by the edge part of the circular annular pressing ring and the circular annular rib. The balloon has good air closing effect after inflation, can maintain inflation for a long time, and avoids deflation of the balloon.

Description

Technical Field

[0001] This utility model belongs to the technical field of balloons, specifically relating to a balloon with a one-way valve. Background Technology

[0002] The balloon is made of latex and its structure includes an integral balloon bladder, balloon neck, and balloon mouth roll. The balloon neck is the transition part connecting the balloon bladder and the balloon mouth roll, and it is also the main part for holding and tying after inflation. The wall thickness of the balloon neck is slightly greater than that of the balloon bladder, but much thinner than the balloon mouth roll.

[0003] Balloons are not only for children's play, but also for decorating celebration venues or homes, adding a festive atmosphere. Traditionally, balloons need to be knotted after inflation, but knotting is a skill; a poorly tied knot can easily leak air, causing the balloon to deflate quickly. To ensure a good knot, the knotting process must be meticulous, but at large events, the sheer number of balloons makes knotting time-consuming and difficult to guarantee quality. To solve these problems, balloons with one-way valves have been designed and manufactured, allowing them to be inflated without needing to be knotted.

[0004] However, existing balloons with one-way valves also have the potential to leak. This is because, after inflation, balloons with one-way valves can leak in two ways. The first way is that if the one-way valve itself is not airtight, it may slowly leak. Specifically, the valve chip of the one-way valve relies on the internal gas pressure of the balloon to achieve a seal. However, the balloon wall is thin and can only withstand a very limited gas pressure. Therefore, the gas pressure inside the balloon is not high, meaning that the sealing force of the valve chip of the one-way valve is not strong. The second way is that air may slowly leak from the gap between the one-way valve body and the balloon. Specifically, existing balloons with one-way valves mainly rely on the balloon neck being tightly bound to the outer perimeter of the circular one-way valve body to achieve airtightness (such as the structure disclosed in CN203090470U). The sealing force of this airtight structure actually relies purely on the radial elastic contraction force of the balloon neck and the rolled edge of the balloon mouth. However, latex material itself is relatively soft and has limited elasticity, meaning that the sealing force is also very limited. Therefore, after inflation, gas may leak from between the balloon neck and the one-way valve body.

[0005] At celebrations, it can be disappointing or unexpected if people find that balloons that were originally filled with gas and ready for use have deflated. Refilling them can be time-consuming, and sometimes there may not be enough time to refill them. Also, if the balloons were originally filled with helium or hydrogen, they cannot be refilled at the celebration site and must be taken to a specialized store with helium (hydrogen) gas for refilling. Utility Model Content

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a balloon with a one-way valve, which has a good air-sealing effect after inflation and can maintain its fullness for a long time without deflated.

[0007] The objective can be achieved as follows: A balloon with a one-way valve includes a balloon body and a one-way valve. The balloon body has an integrally formed balloon bladder, balloon neck, and balloon mouth rolled edge, with the balloon mouth rolled edge located at the edge of the balloon neck. The one-way valve has an inflation nozzle, a valve body cavity, and a valve chip, with the valve chip located in the valve body cavity. The valve body cavity has an upper vent hole and a lower vent hole, located on the upper and lower sides of the valve body cavity, respectively. The one-way valve is characterized by having an annular rib formed on its outer periphery. Above the annular rib, an annular pressure ring made of a hard material is provided. The space between the edge of the annular pressure ring and the annular rib forms an annular clamping groove, with the groove opening facing the radial direction of the one-way valve body. The balloon mouth rolled edge is embedded in the annular clamping groove, and is tightly clamped axially by the edge of the annular pressure ring and the annular rib.

[0008] A snap-fit ​​structure is provided between the annular pressure ring and the upper part of the one-way valve.

[0009] It is also equipped with a sealing plug for plugging the one-way valve inflation nozzle.

[0010] The annular pressure ring is made of plastic, and a deformable plastic sheet connects the sealing plug and the annular pressure ring. The sealing plug, the deformable plastic sheet, and the annular pressure ring are injection molded into one piece.

[0011] The deformable plastic sheet has a hole in the middle for attaching the tether line. This makes it easy to thread the tether line when needed.

[0012] In this application, the vertical positional relationship of each component is determined based on the state when the balloon opening faces upwards; in this state, the rolled edge of the balloon opening is located at the top of the balloon body, and the axial direction of the annular rib and the annular pressure ring is vertical.

[0013] This utility model has the following advantages and effects: This invention not only achieves airtightness by tightening the balloon neck around the circumferential side of the annular rib, but also by utilizing the axial clamping force of the annular rib and the annular pressure ring on the balloon opening edge. Compared to soft and thin latex material, the annular rib and the annular pressure ring are made of rigid materials, thus providing a clamping force far greater than the radial elastic clamping force provided by latex material. In addition, the vertical dimension of the balloon opening edge is large (compared to the wall thickness of the balloon neck), resulting in a large deformation range. This allows for significant compression and a good sealing effect. Therefore, this invention effectively prevents gas leakage from the gap between the one-way valve body and the balloon after the balloon is inflated.

[0014] Second, this utility model is also equipped with a sealing plug for plugging the inflation port of the one-way valve. Therefore, after inflation, the air can be sealed mainly by the elasticity of the sealing plug. Obviously, the elastic pressure generated by the sealing plug can be much greater than the pressure generated by the gas in the balloon. Therefore, this utility model can more effectively prevent gas from leaking from the gap of the one-way valve body after the balloon is inflated.

[0015] The combination of the first and second points above results in a balloon with good air-tightness after inflation, which can maintain its fullness for a long time and prevent it from deflated. It is particularly suitable for celebrations, or for balloons filled with helium / hydrogen, and of course, it is also suitable for ordinary balloons.

[0016] III. The function of the one-way valve chip of this utility model is mainly to provide a temporary seal for the balloon opening after inflation but before the sealing plug is inserted into the inflation nozzle; after the sealing plug is inserted into the inflation nozzle, the sealing function of the one-way valve is mainly undertaken by the sealing plug, and the one-way valve chip only plays an auxiliary role. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present utility model.

[0018] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0019] Figure 3 This is a magnified schematic diagram of a partial state of the present invention when inflation is complete but the sealing plug is disengaged from the one-way valve inflation nozzle.

[0020] Figure 4 yes Figure 3 A cross-sectional view of the check valve and sealing plug in the diagram.

[0021] Figure 5 yes Figure 4 The diagram shows a front view of the one-way valve and the sealing plug.

[0022] Figure 6 yes Figure 5 The diagram shows a three-dimensional structure of the one-way valve and the sealing plug.

[0023] Figure 7 yes Figure 6 The diagram shows an exploded view of the one-way valve and the sealing plug.

[0024] Figure 8 yes Figure 7 A cross-sectional view of the state shown. Detailed Implementation

[0025] Figure 1 , Figure 2 , Figure 4 The balloon shown includes a balloon body 1 made of latex and a one-way valve 2 made of plastic. The one-way valve 2 is circular. The balloon body 1 has an integral balloon bladder 11, a balloon neck 12, and a balloon mouth rolled edge 13, with the balloon mouth rolled edge 13 located at the edge of the balloon neck 12. The one-way valve 2 has an inflation nozzle 20, a valve body cavity 21, and a valve chip 22, with the valve chip 22 located in the valve body cavity 21. The valve body cavity 21 has an upper vent hole 23 and a lower vent hole 24. The upper vent hole 23... Located on the upper side of the valve body cavity 21, the lower vent hole 24 is located on the lower side of the valve body cavity 21; the horizontal projection range of the valve chip 22 covers all the upper vent holes 23, but the horizontal projection range of the valve chip 22 cannot cover all the lower vent holes 24. When the gas pressure direction is upward, the valve chip 22 contacts the upper wall of the valve body cavity 21 and blocks all the upper vent holes 23. When the gas pressure direction is downward, the valve chip 22 contacts the lower wall of the valve body cavity 21 but cannot block all the lower vent holes 24, thus achieving one-way sealing.

[0026] Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a circular annular rib 25 is formed on the outer periphery of the one-way valve 2; above the circular annular rib 25, a circular annular pressure ring 3 made of hard material is also provided. The space between the edge 31 of the circular pressure ring 3 and the circular annular rib 25 is formed as a circular annular groove 4. The groove opening of the groove 4 faces the radial direction of the valve body of the one-way valve 2 (e.g., ...). Figure 5 (in the direction indicated by the middle arrow a or b); the balloon mouth rolled edge 13 is embedded in the annular groove 4, and the balloon mouth rolled edge 13 is axially (i.e., the edge portion 31 of the annular pressing ring and the annular protruding rib 25) from both the edge portion 31 of the annular pressing ring and the annular rib 25. Figure 2 , Figure 3 (In the vertical direction) tightly clamped.

[0027] Figure 4 , Figure 8 , Figure 7As shown, a snap-fit ​​structure is provided between the annular pressure ring 3 and the upper part of the one-way valve 2; specifically, the edge portion 31 of the annular pressure ring 3 is provided with a first rib 51 protruding inward, while the uppermost edge of the one-way valve 2 is provided with a second rib 52 protruding outward. When the annular pressure ring 3 and the one-way valve 2 are connected, the second rib 52 is snapped under the outer side of the first rib 51.

[0028] Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a sealing plug 6 is also provided to plug the one-way valve inflation nozzle 20; the annular pressure ring 3 is made of plastic, and a deformable plastic sheet 7 connects the sealing plug 6 and the annular pressure ring 3. The sealing plug 6, the deformable plastic sheet 7, and the annular pressure ring 3 are injection molded into one piece. A tying hole 70 for attaching the traction line is provided in the middle of the deformable plastic sheet 7.

[0029] The operating principle of the above embodiments is as follows: During inflation, the sealing plug 6 disengages from the inflation nozzle 20 of the one-way valve, and external gas can be forced into the inflation nozzle 20 through the inflation port. During this period, the valve chip 22 contacts the lower wall of the valve body cavity 21, but cannot cover all the lower ventilation holes 24, so the gas can be smoothly inflated into the balloon body 1. When the inflation process is just completed and the sealing plug 6 is not yet tightly inserted into the one-way valve inflation nozzle 20, the gas pressure inside the balloon body 1 presses the valve chip 22 against the upper wall of the valve body cavity 21. The valve chip 22 covers all the upper vent holes 23, achieving a preliminary seal. Figure 3 As shown; During use after inflation, the sealing plug 6 is tightly sealed inside the one-way valve inflation nozzle 20, thus achieving a high degree of sealing for the one-way valve body; in addition, because the balloon mouth rolled edge 13 is both axially (i.e., the edge portion 31 of the annular pressure ring and the annular rib 25)... Figure 1 , Figure 2 , Figure 3 The balloon is tightly clamped together (vertically and vertically), preventing gas leakage from the gap between the balloon body 1 and the one-way valve 2. This ensures the balloon will not deflate for an extended period. Figure 1 , Figure 2 As shown.

Claims

1. A balloon with a one-way valve, comprising a balloon body and a one-way valve, the balloon body having an integrally formed balloon bladder, balloon neck, and balloon mouth rolled edge, the balloon mouth rolled edge being located at the edge of the balloon neck; the one-way valve having an inflation nozzle, a valve body cavity, and a valve chip, the valve chip being located in the valve body cavity, the valve body cavity having an upper vent hole and a lower vent hole, the upper vent hole and the lower vent hole being located on the upper and lower sides of the valve body cavity respectively; characterized in that: The one-way valve has an annular rib on its outer periphery; above the annular rib, there is an annular pressure ring made of hard material. The space between the edge of the annular pressure ring and the annular rib forms an annular groove, and the groove opening faces the radial direction of the one-way valve body; the rolled edge of the balloon mouth is embedded in the annular groove, and the rolled edge of the balloon mouth is tightly clamped axially by the edge of the annular pressure ring and the annular rib.

2. The balloon with a one-way valve according to claim 1, characterized in that: A snap-fit ​​structure is provided between the annular pressure ring and the upper part of the one-way valve.

3. The balloon with a one-way valve according to claim 1 or 2, characterized in that: It is also equipped with a sealing plug for plugging the one-way valve inflation nozzle.

4. The balloon with a one-way valve according to claim 3, characterized in that: The annular pressure ring is made of plastic, and a deformable plastic sheet connects the sealing plug and the annular pressure ring. The sealing plug, the deformable plastic sheet, and the annular pressure ring are injection molded into one piece.

5. The balloon with a one-way valve according to claim 4, characterized in that: A hole is provided in the middle of the deformable plastic sheet for attaching the traction line.

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