| 摘要 |
A dual-layer sucking disc includes a sucking body capable of adhering to a smooth surface. The sucking body has an annular closing surface which is a plane and disposed around the periphery of the sucking body. The sucking body has a concave bottom to form a sucking chamber. An inner soft layer is provided in the sucking chamber of the sucking body, which is capable of adhering to a rough surface. The inner soft layer is attached to the sucking chamber except the annular closing surface. The present invention can adhere to a smooth airtight surface with the annular closing surface or a rough airtight surface with the inner soft layer. The present invention is simply in configuration and can be manufactured with ease and used widely. |
