One-way valve structure and intelligent suction cup thereof

Abstract

The one-way valve structure comprises an elastic valve body, the valve body is hollow, a gas channel is formed in the valve body, the upper portion of the valve body is a flat portion in a flat shape, a gas outlet port is formed in the upper end of the flat portion, and a gas outlet is formed in the lower end of the gas outlet port. The lower part of the valve body is a horn mouth-shaped part of which the inner cavity is gradually enlarged from top to bottom, and the lower end of the horn mouth-shaped part is provided with an air inlet port; the two side walls of the air outlet port are elastically closed together to block the air channel when air exhaust pressure does not exist, and therefore external air is prevented from entering the air outlet port. The two side walls of the air outlet port are automatically opened when air exhaust pressure exists, and therefore air is sucked away from the air inlet port. The utility model has the advantages of simple structure and good sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of intelligent suction cup technology, and in particular to a one-way valve structure and its intelligent suction cup. Background Technology

[0002] Existing vacuum suction cups commonly suffer from vacuum decay, i.e., air leakage, which severely affects the suction force and stability of the suction cup. The main reason for air leakage lies in the complexity of the suction cup system. A typical vacuum suction cup system usually consists of multiple interconnected components, such as a vacuum pump, connecting pipes, valves, the suction cup body, and various sealing elements. Failure at any interface, connection, or sealing element in the system can lead to air leakage.

[0003] For example, the suction port connecting the vacuum pump and the suction cup body is a typical point of leakage. Traditional suction ports usually employ complex one-way valve structures. However, these solutions often increase the complexity and cost of the system and do not completely eliminate the risk of leakage.

[0004] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a one-way valve structure with simple structure and good sealing performance, as well as its intelligent suction cup.

[0006] This utility model can be achieved through the following technical solutions:

[0007] To solve the above-mentioned technical problems, this utility model provides a one-way valve structure, including an elastic valve body, the valve body is hollow and has a gas passage inside, the upper part of the valve body is a flat part with a flat shape, the upper end of the flat part is provided with an air outlet port, the lower part of the valve body is a flared part with an inner cavity that gradually expands from top to bottom, the lower end of the flared part is provided with an air inlet port;

[0008] The two side walls of the outlet port elastically close together to block the gas passage when there is no suction pressure, thereby preventing external gas from entering from the outlet port; the two side walls of the outlet port automatically open when there is suction pressure, thereby drawing gas away from the inlet port.

[0009] To further address the technical problems to be solved by this utility model, the wall thickness of the flat portion in the one-way valve structure provided by this utility model is 0.2mm-0.8mm.

[0010] To further address the technical problems to be solved by this utility model, this utility model provides a one-way valve structure in which the valve body is made of a soft rubber material selected from TPE, rubber or silicone, and its Shore hardness is 10-40 degrees.

[0011] This utility model can be achieved through the following technical solutions:

[0012] To solve the above technical problems, this utility model provides an intelligent suction cup with the above-mentioned one-way valve structure, which also includes a suction cup and an active air extraction device. The bottom surface of the suction cup is provided with an air inlet, and the air inlet is connected to the air extraction end of the active air extraction device through a valve body.

[0013] The two side walls of the air outlet port are elastically closed together when there is no suction pressure, thereby preventing external gas from entering the suction cup; when the active suction device generates negative pressure, the two side walls of the air outlet port automatically open due to the internal pressure difference, thereby sucking away the gas inside the suction cup.

[0014] To further address the technical problems to be solved by this utility model, this utility model provides an intelligent suction cup in which the valve body is located inside the air inlet, and an annular fixing platform is provided around the lower part of the valve body. The fixing platform is used to fix the valve body at the air inlet.

[0015] To further address the technical problems to be solved by this utility model, this utility model provides an intelligent suction cup in which the air inlet includes a mounting hole for accommodating the fixed platform and a limiting hole for limiting the deformation range of the flat part. The fixed platform is tightly installed in the mounting hole, and at least a portion of the flat part extends into the limiting hole.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] This invention provides a simple, well-sealed one-way valve structure and its intelligent suction cup. It employs a deformable part with a flat opening. The two side walls of this flat opening are flat, forming planar contact when closed, thus achieving excellent sealing performance and effectively reducing the risk of air leakage. Simultaneously, the flat opening has a large opening area during suction, allowing for rapid gas discharge and improving the suction cup's working efficiency. Furthermore, this one-way valve structure utilizes the valve body to control the automatic opening and closing of the air outlet, effectively reducing the risk of air leakage and improving the suction cup's performance and reliability. At the same time, the structure's simple design makes it easy to manufacture and assemble, reducing production costs. Attached Figure Description

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is an exploded view of the present invention;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the valve body;

[0022] Figure 4 This is a cross-sectional view of the valve body. Figure 1 (Suction cup adsorption state);

[0023] Figure 5 This is a cross-sectional view of the valve body. Figure 2 (Air extraction state) Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1 to 5 The one-way valve structure shown includes a flexible valve body 1, which is hollow and has a gas passage 11 inside. The upper part of the valve body 1 is a flat part 12 with a flat shape. The upper end of the flat part 12 is provided with a flat air outlet port 111 (i.e., a flat opening). The lower part of the valve body 1 is a flared part 13 with an inner cavity that gradually expands from top to bottom. The lower end of the flared part 13 is provided with an air inlet port 112.

[0026] The flat opening is used to open and close the gas passage 11. Specifically, the two side walls of the outlet port 111 close together due to the elasticity of the material when there is no suction pressure, thus blocking the gas passage 11 and preventing external gas from entering through the outlet port 111. The two side walls of the outlet port 111 automatically open when there is suction pressure, thereby sucking away gas from the inlet port 112. This will be described in detail below with reference to the suction cup.

[0027] The function of the flared portion 13 in the one-way valve structure can be summarized as follows:

[0028] 1. Guiding gas inflow: The flared structure effectively expands the air inlet area, making it easier to capture and guide gas into the air inlet port 112. This design reduces the resistance to gas entering the valve body and improves intake efficiency.

[0029] 2. Reduced pressure drop: The gradually expanding, bell-shaped inner cavity allows the gas to gradually slow down as it enters the valve body, thereby reducing the pressure drop caused by suddenly entering a narrow passage. This is crucial for maintaining a stable airflow.

[0030] 3. Optimize airflow distribution: The funnel-shaped structure helps to distribute the incoming gas more evenly throughout the gas channel 11, thereby ensuring that the airflow can effectively act on the flat part 12, so that it can smoothly open the outlet port 111 under the action of suction pressure.

[0031] 4. Structural support and connection: The flared part 13 usually also serves as the lower support structure of the valve body 1, which facilitates connection with other components.

[0032] This utility model also discloses an intelligent suction cup with the above-mentioned one-way valve structure. The intelligent suction cup also includes a suction cup 2 and an active air extraction device 3. The bottom surface of the suction cup 2 is provided with an air inlet 21, and the air inlet 21 is connected to the air extraction end of the active air extraction device 3 through a valve body 1.

[0033] The two side walls of the flat opening (i.e., the air outlet 111) at the upper end of the flat part 12 are closed together due to the elasticity of the material when there is no suction pressure (the opening is open by 0-0.1 mm). However, when the suction cup 2 is in operation, it adheres to the surface of the object, and the flat opening is completely closed under negative pressure (i.e., blocking the gas passage 11), forming a seal and preventing external gas from entering the suction cup 2. When the active suction device 3 is activated and generates negative pressure, the two side walls of the flat opening automatically open due to the internal pressure difference, allowing gas to escape from inside the suction cup 2 until a preset vacuum level is reached inside the suction cup 2.

[0034] The working principle of the one-way valve structure of this utility model is based on the elastic deformation of the flat part 12. When the internal pressure of the suction cup 2 is greater than the external pressure, the flat opening of the flat part 12 closes, preventing gas flow; when the internal pressure of the suction cup 2 is less than the external pressure, the pressure difference forces the flat opening of the flat part 12 to open, allowing gas to be discharged from the inside of the suction cup 2.

[0035] This invention features a smart suction cup one-way valve structure. The valve body 3 controls the automatic opening and closing of the air inlet 21, effectively reducing the risk of air leakage and improving the performance and reliability of the suction cup. Furthermore, the structure is simple in design, easy to manufacture and assemble, and reduces production costs.

[0036] This one-way valve structure offers excellent sealing performance. The upper end of the flat section 12 has a flat opening (i.e., the outlet port 111). Because both sides of the flat opening are flat, when the valve is closed, the two flat surfaces fit tightly together, forming a surface seal, rather than a traditional line seal. This surface seal structure minimizes leakage and maintains a good seal even under small pressure differences, ensuring the suction cup can maintain a stable vacuum. Compared to other opening shapes, such as circular or elliptical, the flat opening more easily forms a complete planar contact when closed, thus improving sealing performance.

[0037] In addition to its excellent sealing performance, this one-way valve structure also features rapid venting. When the active suction device 3 inside the suction cup operates, the internal pressure of the suction cup decreases, creating a pressure difference with the external atmospheric pressure. This pressure difference acts on the flat opening of the flat portion 12, causing it to open rapidly. Due to the shape of the flat opening, its opening area is large, allowing for the rapid expulsion of gas from inside the suction cup, thereby achieving the required vacuum level in a short time and significantly improving the suction cup's working efficiency and response speed. This rapid venting capability is particularly important for applications requiring frequent adsorption and release of objects.

[0038] Furthermore, the simple design of this one-way valve structure offers numerous advantages. It has fewer parts, a compact structure, is easy to integrate into suction cup systems, and facilitates maintenance and replacement. The simple structure also means lower manufacturing costs and fewer potential points of failure, thereby improving the overall reliability and lifespan of the suction cup.

[0039] In summary, the flat opening design of the one-way valve structure of this utility model achieves excellent sealing performance and rapid venting capability, while maintaining the simplicity and ease of use of the structure.

[0040] Preferably, the wall thickness of the flat portion 12 is 0.2mm-0.8mm to ensure that it has suitable deformation capacity and a long service life.

[0041] Preferably, the valve body 1 is made of a soft rubber material selected from TPE, rubber or silicone, and its Shore hardness is 10 to 40 degrees.

[0042] Furthermore, the valve body 1 is located inside the air inlet 21, and an annular fixing platform 14 is provided around the lower part of the valve body 1. The fixing platform 14 is used to fix the valve body 1 at the air inlet 21.

[0043] Furthermore, the air inlet 21 includes a mounting hole 211 for accommodating the fixed platform 14 and a limiting hole 212 for limiting the deformation range of the flat portion 12. The fixed platform 14 is tightly installed in the mounting hole 211, and at least a portion of the flat portion 12 extends into the limiting hole 212. Preferably, the fixed platform 14 is fixed in the mounting hole 211 by an interference fit or adhesive. At least a portion of the flat portion 12 extends into the limiting hole 212. The inner diameter of the limiting hole 212 is slightly larger than the outer diameter of the flat portion 12, which can limit excessive deformation of the flat portion 12 and improve the stability and service life of the valve body 1.

[0044] In summary, the one-way valve structure and its intelligent suction cup of this utility model have the following advantages: simple structure, easy to manufacture and assemble; good sealing performance, which can effectively prevent air leakage and improve the adsorption performance of the suction cup; fast exhaust speed, which can shorten the working time of the suction cup and improve work efficiency; long service life, which can reduce maintenance costs.

[0045] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Based on the technical solution of this utility model, those skilled in the art can make various modifications and improvements, all of which fall within the scope of protection of this utility model.

Claims

1. A check valve structure characterized by: The valve body (1) is hollow and has a gas passage (11) therein, the upper part of the valve body (1) is a flat part (12) with a flat shape, the upper end of the flat part (12) is provided with a gas outlet port (111), the lower part of the valve body (1) is a flared part (13) with a gradually expanding inner cavity from top to bottom, the lower end of the flared part (13) is provided with a gas inlet port (112); The two side walls of the gas outlet port (111) are elastically closed together to block the gas passage (11) when there is no suction pressure, thereby preventing external gas from entering from the gas outlet port (111); the two side walls of the gas outlet port (111) are automatically opened when there is suction pressure, thereby sucking away gas from the gas inlet port (112).

2. A check valve structure according to claim 1, characterized in that: The wall thickness of the flat part (12) is 0.2-0.8 mm.

3. The one-way valve structure of claim 1, wherein: The valve body (1) is made of soft rubber material selected from TPE, rubber or silicone, and its Shore hardness is 10-40 degrees.

4. A smart suction cup having the one-way valve structure according to any one of claims 1-3, characterized in that: The suction cup (2) is further provided with a gas inlet port (21) on the bottom surface, and the gas inlet port (21) is in communication with the suction end of the active gas suction device (3) through the valve body (1); The two side walls of the gas outlet port (111) are elastically closed together to block the gas passage (11) when there is no suction pressure, thereby preventing external gas from entering the inside of the suction cup (2); when the active gas suction device (3) works to generate negative pressure, the two side walls of the gas outlet port (111) are automatically opened due to the action of internal pressure difference, thereby sucking away the gas inside the suction cup (2).

5. The smart suction cup of claim 4, wherein: The valve body (1) is arranged in the gas inlet port (21), and the periphery of the lower part of the valve body (1) is provided with an annular fixing table (14) for fixing the valve body (1) at the gas inlet port (21).

6. The smart suction cup of claim 5, wherein: The gas inlet port (21) includes a mounting hole (211) for accommodating the fixing table (14) and a limiting hole (212) for limiting the deformation range of the flat part (12), the fixing table (14) is tightly mounted in the mounting hole (211), and at least a part of the flat part (12) extends into the limiting hole (212).

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