2results about How to "Connection seal" patented technology

This utility model discloses a vacuuming device for a floor scrubber, including a floor scrubber body. A suction tube is connected to the outer wall of the floor scrubber body. A connecting tube is connected to the end of the suction tube away from the floor scrubber body. A suction squeegee is connected to the end of the connecting tube. A processing component is disposed outside the suction squeegee. When cleaning the floor is required, the suction tube is connected to the suction squeegee, and the suction tube is inserted into the connecting tube. The inclined surface of the hook end contacts and presses against the inclined surface of the retaining ring, causing the hook to deflect around the hinge point with the fixed block as the rotation center. The side of the hook away from the inclined surface contacts the side of the retaining ring away from the inclined surface. When the hook and retaining ring are no longer pressed, the hook and retaining ring are engaged under the action of the spring elasticity. The sealing gasket fixedly installed at the end of the suction tube contacts and presses against the inner bottom surface of the connecting tube. Under the restriction of the engagement of the hook and retaining ring, the sealing gasket is compressed, sealing the connection between the suction tube and the connecting tube.

The utility model relates to the technical field of refrigerator defrosting water drainage, in particular to a drainage assembly and a refrigerator. The drainage assembly comprises a drainage pipe, a water pan and a connecting pipe, the drainage pipe is used for being connected and sealed with a refrigerator inner container, and defrosting water in the refrigerator inner container can be drained through the drainage pipe; the water receiving disc is used for receiving externally-discharged defrosting water, a fixing pipe is arranged on the water receiving disc, and a water discharging opening is formed in the fixing pipe; the connecting pipe is connected and sealed with the drainage pipe, the connecting pipe is provided with a water storage part and an inserting part, the inserting part is contained in the fixing pipe and is in clearance fit with the pipe wall of the fixing pipe so as to form a water seal cavity, and the water seal cavity is formed in the lower position of the drainage port in the vertical direction and is communicated with the drainage port. Through the arrangement of a water sealing structure, discharging of defrosting water can be guaranteed, internal and external air pressure can be balanced, and external humid and hot air can be effectively blocked.