Locking and sealing device of tank body and rear cover of suction-type sewer scavenger

Abstract

The invention discloses a locking and sealing device for the back cover of a tank body of a sewage suction vehicle, which comprises a tank body, a first bracket is fixedly connected to the upper left side of the tank body, and a connecting bracket is movably connected to the upper end of the first bracket through a hinge. The upper end of the connecting plate is movably connected with a rear cover opening device through a hinge, the lower end of the connecting plate is fixedly connected with a rear cover, one side of the rear cover is fixedly connected with a first ring body, and the first ring One side of the tank body is fixedly connected with a sealing ring, and the left side of the tank body is fixedly connected with a second ring body, and several groups of exhaust holes are evenly distributed in the left inner cavity of the second ring body, and the second ring body is fixedly connected with a second ring body. An air collecting ring is opened in the inner cavity of the ring body, and an air pipe is fixedly connected to the right side of the bottom of the second ring body, and an air valve is fixedly installed in the middle of the air pipe. The invention is convenient and practical, effectively prevents the failure of cooperation between the back cover and the tank body, does not cause secondary pollution caused by garbage overflow in the tank body, and better ensures the tight cooperation between the back cover and the tank body.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a locking and sealing device for the rear cover of a tank body of a sewage suction truck. Background technique [0002] Sewage suction trucks are mainly used in municipal, sanitation, factories and mines to solve the suction, transportation and loading and unloading of sediments in underground pipe networks, manholes, septic tanks, industrial wastewater, etc. In the prior art, the sewage suction tank on the sewage suction truck and the back cover are mainly locked manually and the auxiliary hydraulic cylinder for opening and closing the back cover is tightened to realize the sealing of the tank body. In the above-mentioned prior art, the tank body and the back cover The locking operation is cumbersome, and it is also easy to cause misoperation, resulting in a poor seal between the tank body and the rear cover, causing garbage overflow in the tank body and causing...

AI Technical Summary

Problems solved by technology

In the prior art, the sewage suction tank on the sewage suction truck and the back cover are mainly locked manually and the auxiliary hydraulic cylinder for opening and closing the back cover is tightened to realize the sealing of the tank body. In the above-mentioned prior art, the tank body and the back cover The locking operation is cumbersome, and it is also easy to cause misoperation, resulting in a poor seal between the tank body and the back cover, causing garbage overflow in the tank and causing secondary pollution

With the complexity of the function of the sewage suction truck and the continuous expansion of the application range, there have been large-scale combined dredging and cleaning sewage suction vehicles, dust particle suction and discharge vehicles, powerful sewage suction vehicles and other products, which are characterized by the establishment of vacuum and positive pressure inside the tank. The higher the value, the more stringent the sealing requirements for the back cover, the above-mentioned traditional suction tank rear cover locking mechanism can no longer meet the application of the sewage suction tank with higher internal vacuum and positive pressure value

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