The invention relates to equipment used in the field of
building construction, in particular to a portable
cement paste
injection pressure gun. The portable
cement paste
injection pressure gun comprises a gun cap, a paste storage
barrel, a
piston, a jacking rod, a dredge needle, a gun
handle, a trigger, a boosting plate, a fixing plate and a spring, wherein a paste outlet
nozzle communicated with the inner side of the gun cap is arranged at the front end of the gun cap, the gun cap is connected with the paste storage
barrel, the
piston is arranged at the inner side of the paste storage
barrel, the jacking rod sequentially penetrates through the fixing plate, the boosting plate and a through hole in the rear end wall of the paste storage barrel from front to back and then is fixedly connected with the
piston, the piston can move front and back in the paste storage barrel under the pushing and pull action of the jacking rod, the rear end of the dredge needle sequentially penetrates through the piston and a dredge needle penetrating hole in the rear end wall of the paste storage barrel and then is fixedly connected with the boosting plate, the front end of the dredge needle extends into the paste outlet
nozzle and can come into and out of the paste outlet
nozzle freely, and the dredge needle can make
reciprocating motion front and back relative to the paste outlet nozzle under the action of the boosting plate. The portable
cement paste
injection pressure gun can be used for construction of hollow joint or hole paste injection construction conveniently, is uniform in outlet paste, enables paste injection to be in place, and can effectively guarantee the paste injection construction quality.