Outdoor-use heating mat

Abstract

An outdoor-use heating mat includes a mat body, a water container, a substance container, and a first circulating pump. The water container is disposed in the mat body. The water container has a first inlet and a first outlet. The substance container is configured to hold a substance that can chemically react with water and release thermal energy. The substance container has a second inlet, a second outlet, and a normally closed feed port. Two ends of the first circulating pump are in communication with the first outlet and the second inlet, respectively. The second outlet is in communication with the first inlet. The outdoor-use heating mat can be heated, easy to carry.

What is claimed is: 
     
         1 . An outdoor-use heating mat, comprising a mat body, a water container, a
 substance container, and a first circulating pump;   the water container being disposed in the mat body, the water container having a first inlet and a first outlet;   the substance container being configured to hold a substance that can chemically react with water and release thermal energy, the substance container having a second inlet, a second outlet and a normally closed feed port;   a water inlet end of the first circulating pump being in communication with the first outlet, a water outlet end of the first circulating pump being in communication with the second inlet, the second outlet being in communication with the first inlet.   
     
     
         2 . The outdoor-use heating mat as claimed in  claim 1 , wherein the substance container is disposed inside the mat body, and the feed port extends out of the mat body. 
     
     
         3 . The outdoor-use heating mat as claimed in  claim 1 , wherein the substance includes quicklime. 
     
     
         4 . The outdoor-use heating mat as claimed in  claim 1 , wherein the substance container is provided with a detachable cover for covering the feed port. 
     
     
         5 . The outdoor-use heating mat as claimed in  claim 1 , wherein the circulating pump is connected with a power source that is a rechargeable battery or a power bank for supplying power. 
     
     
         6 . The outdoor-use heating mat as claimed in  claim 1 , further comprising a second circulating pump, the second circulating pump being disposed between the first inlet and the second outlet. 
     
     
         7 . The outdoor-use heating mat as claimed in  claim 1 , wherein the water container further includes valves respectively disposed at the first inlet and the first outlet for controlling opening and closing of the first inlet and the first outlet.