Grouting sealing device

Abstract

1. Name of the product in this design: Grouting and Sealing Device. 2. Purpose of this design: For sealing boreholes in underground gas extraction drilling in coal mines. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Other situations requiring explanation: The top view is already shown in the enlarged top view, so the top view is omitted; the bottom view is already shown in the enlarged bottom view, so the bottom view is omitted; the enlarged view of part A is point A in the main view; the enlarged view of part B is point B in the main view; the enlarged view of part C is point C in the left view; the enlarged view of part D is point D in the left view.

Images