Pump drum and application thereof
A technology of pump drums and air holes, which is applied to pump drums and its application in built-in air-conditioning shoes, can solve problems such as the inability to form aerodynamic sources far apart, affect the function and effect of air pumps, and affect the service life of products, etc., to achieve Excellent tension, high tension, large flow effect
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Embodiment 1
[0028] The pump drum of embodiment 1 of the present invention (referring to figure 1 , figure 2 , image 3 ), it is designed to meet the technical requirements that the flow volume of the air circulation system is not too large, the impact resistance of the pump drum at the heel of the insole is average, and it can bounce back and walk in the design and processing process of men's and women's air-conditioned fashion shoes. . It is composed of a complete U-shaped whole. The outer surface of the pump drum is an arc 1 of the entire arc structure, and the central line is a raised arc 2 in the middle. Circular air hole 3, skirt 4 is provided around the U-shaped arc surface of the pump drum, the bottom surface of skirt 4 is an overall planar structure, and the top of skirt 4 is a continuation of arc 1. The pump drum in Example 1 of the present invention is injection-molded in a mould, using a thermoplastic polyurethane elastomer material with high strength, high toughness, stron...
Embodiment 2
[0030] The pump drum of embodiment 2 of the present invention (referring to Figure 4 , Figure 5 , Image 6 ), it is suitable for men and women air-conditioned casual shoes, air-conditioned travel shoes and high-end air-conditioned shoes. The sole has a strong compressed gas and promotes a large air flow. designed for technical requirements. Except that the technical solution described in this embodiment is the same as the technical solution of the above-mentioned embodiment 1, the differences mainly include the following points: one is that the curved surface 2 of the middle bulge is a structural form with a high back and a low front, That is, the U-shaped notch end of the U-shaped pump drum is the front end. The purpose is to ensure that the air-conditioned casual shoes and air-conditioned travel shoes have greater exercise volume and impact than air-conditioned fashion shoes when the wearer wears and exercises. In order to ensure that the arch of the wearer's foot is be...
Embodiment 3
[0032] The pump drum of embodiment 3 of the present invention (referring to Figure 7 , Figure 8 , Figure 9), it is to meet the needs of air-conditioned sports shoes with powerful compressed gas function, and to achieve sufficient air flow, so that heat can be dissipated quickly during exercise, and at the same time to achieve air-conditioned sports shoes with extremely high load-bearing capacity, excellent resistance to impact and light It is designed according to the technical requirements of seismic performance. Except that the technical solution described in this embodiment is the same as the technical solution of the above-mentioned embodiment 1, the differences mainly include the following points: one is that the curved surface 2 of the middle bulge is a structural form with a low front and a high rear, The U-shaped notch end of the U-shaped pump drum is the front end. Its purpose is to ensure that when the wearer is exercising, a large amount of exercise will have a...
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