5results about How to "Completely sealed" patented technology

The present disclosure relates to a cleaner system and a method of controlling the same, the cleaner system including a cleaner including a dust bin configured to collect dust, and a cleaner station to which the cleaner is coupled, in which the cleaner includes a suction motor configured to generate a suction force to the dust bin, a suction force of the suction motor is changed at least one or more times, and a flow direction of the dust in a flow path part connected to the dust bin is changed reversely at least one or more times, such that when debris firmly caught by the dust bin has strong resistance against an airflow in one direction, an airflow may be applied in the opposite direction to effectively remove the debris.

An electric connector connecting structure comprises a male seat and a female seat which are mutually connected into a whole, the female seat is provided with a female seat joint, the female seat joint is provided with a bayonet and an inclined plane, the male seat is provided with a clamping block, the bayonet and the clamping block are mutually clamped, a male seat through hole is provided with a sliding groove, a male seat joint is arranged in the male seat through hole, and the sliding groove is provided with a sliding groove. The male seat joint is provided with a limiting block, the limiting block is in sliding connection with the sliding groove, and the male seat joint is sleeved with a sealing ring; through the clamping mode of the clamping opening and the clamping block, connection, installation or disassembly is more convenient and simpler; meanwhile, the clamping opening is provided with the inclined face, the clamping block is also obliquely arranged, the inclined face can play a role in guiding the inclined clamping block to slide into the clamping opening, and clamping is smooth; the limiting block is limited and fixed through the sliding groove, so that the working connector is ensured not to loosen in the process of being mounted on the shell; and the sealing ring is sleeved outside the male seat joint, so that interference fit between the inner wall of the male seat and the male seat joint is ensured, and complete sealing can be realized.

The utility model provides a civil air defense construction air tightness detection device, which comprises a sealing mechanism, an air tightness detector, a pressure regulating valve, a pressure air source device, a civil air defense wall body, civil air defense sealing equipment and a sealing space, the sealing space exists between the civil air defense wall body and the civil air defense sealing equipment, and the sealing mechanism is used for forming the sealing space with the civil air defense sealing equipment. And the pressure gas source device introduces gas into the sealed space. Compared with the prior art, the sealing device has the advantages that the sealing plate, the bonding layer, the embedded bolt, the vertical rib, the end head, the cross beam, the connector, the fixing plate, the end plate, the track, the screw rod, the hand wheel, the top head, the rotating arm, the pressing head and the guide wheel are arranged in a matched mode, the flexible bonding layer is designed between the sealing plate and the civil air defense wall body, and the bonding layer has elasticity; the bonding layer can well fill the uneven part of the surface of the civil air defense wall body, so that the sealing space is completely sealed, and the air tightness detection data of the civil air defense sealing equipment is accurate.

The utility model provides a shield pump electrical safety device capable of preventing condensate water, and relates to the technical field of pumping equipment. According to the technical scheme, the shield pump comprises a shield pump body, a shield pump motor and a shield pump electric control system. The motor of the shield pump is communicated with the internal space of the electric control system of the shield pump, the closed space is provided with a gas circulation opening and a sealing cover matched with the gas circulation opening, and a gas circulation frame which is made of a thermosensitive sealing material and allows gas to pass through when the gas circulation frame is not heated is arranged between the gas circulation opening and the sealing cover. According to the shield pump electrical safety device capable of preventing condensate water, gas is allowed to flow inside and outside the internal space in a two-way mode, the functions of pumping out internal air and filling inert gas are achieved only through one gas circulation opening, the gap between the sealing cover and the gas circulation opening is filled with the heating gas circulation frame, complete sealing is achieved, and the sealing effect is good. Pressure difference is allowed to exist in inner space and outer space of equipment, sealing failure caused by the pressure difference is avoided, and air leakage caused by slight vibration of the equipment is prevented.

The invention relates to a gas detection plugging device for an ABS sensor mounting hole of a rear axle housing. The gas detection plugging device comprises a lower extrusion plate, a sealing ring, an upper extrusion plate, an extrusion bolt, a pull rod, a baffle, a stop pin and a guide pin, the lower extrusion plate and the upper extrusion plate get close to each other to extrude the sealing ring when the pull rod drives the extrusion bolt to rotate, so that the sealing ring is compressed in the vertical direction and expanded in the circumferential direction, and the inner hole of the workpiece and the plugging device are completely sealed. The rear axle housing ABS sensor mounting hole which cannot be plugged by equipment can meet the plugging requirement through simple operation, so that backflow of a production process is avoided.