Patent ID: 8043029
Filing Date: 2011-10-25
Classification: E04G,E04H

Abstract:
1. A packer structure for grouting which is used to inject a repair liquid into a crack of a concrete structure, the packer structure comprising: a packer body comprising: an elastic tube having a first end connected to the first coupling portion, wherein the elastic tube inflates and deflates elastically, a repair liquid is contained in the elastic tube while the elastic tube inflates, and the repair liquid is injected into the crack by a deflation force; a repair liquid injecting tube comprising: a first coupling cap having an inner circumference surface of a lower portion screwed to the central tube, wherein a first pressurizing surface is formed on an inner circumference surface of an upper portion of the first coupling cap so as to pressurize the elastic tube towards the first inclined surface; and a second coupling cap having an inner circumference surface of an upper portion screwed to the repair liquid injecting tube, wherein a second pressurizing surface is formed on an inner circumference surface of a lower portion of the second coupling cap so as to pressurize the elastic tube towards the second inclined surface, wherein the check valve comprises: a stumbling projection having a circular shape and formed on an inner circumference surface of the injecting hole; and an elastic plate that is separately inserted into an insertion hole connected to the injecting hole, is formed below an outer circumference surface of the stumbling projection, and is elastically changed so as to close and open the injecting hole.