30results about How to "Solve the problem of not being waterproof" patented technology

The invention relates to a waterproof schoolbag, which comprises a surface fabric layer, an inner fabric layer and a plastic layer, wherein the plastic layer is bonded between the surface fabric layer and the inner fabric layer. The plastic layer performs the waterproof effect, and is not exposed outside so as not to influence the entire appearance of the schoolbag. The waterproof schoolbag has the advantages of high practicability and good appearance.

Provided are a door made of environmental-protection and energy-saving fireproof composite plates and a production method. Fireproof doors at the market are steel fireproof doors and wood fireproof doors, wherein the steel fireproof doors are usually made of steel plates with rock wool or expanded perlite filled inside. The production method of environmental-protection and energy-saving fireproof composite plates includes the following two steps: producing flame retardant single plates by aid of pure solid wood; arraying the flame retardant single plates in a way of placing one layer of longitudinal texture single plates and then placing one layer of transverse texture single plates crossly. The production method is used for producing the door made of the environmental-protection and energy-saving fireproof composite plates.

The invention provides a connector for manufacturing a connection pin on a key connector, the key connector, electronic equipment and a method for manufacturing the key connector. The connector comprises a structure corresponding part and at least one auxiliary part connected with the structure corresponding part, wherein the structure corresponding part has a structure and a size corresponding to design structure and size of the to-be-manufactured connection pin; at least one auxiliary part is provided with a locating hole; and the structure corresponding part and the auxiliary parts are integrally manufactured. The key connector is manufactured by the connector provided by the embodiment of the invention; the auxiliary parts of the connector are applied to locating and supporting when the key connector is manufactured; the locating holes formed during injection molding on the connector are correspondingly located in the auxiliary parts and are prevented from being located in the structure corresponding part for forming the connection pin; and formation of the locating holes in an injection molding body corresponding to the structure corresponding part is reduced, so that the problem that the key connector in the prior art cannot be waterproof due to the locating holes is solved.

The invention relates to the technical field of liquid level transmitters, and discloses a liquid level transmitter waterproof sealing structure, including a housing, the inner wall of the upper end of the housing is respectively provided with a first thread and a second thread, and the inner wall of the first thread is screwed and filled with glue Compression ring, the inner wall of the second thread is screwed with the compression sleeve, the inner wall of the compression sleeve is plugged with the liquid level cable, the lower surface of the compression sleeve is attached to the gasket, the lower surface of the gasket is attached to the baffle, and the lower surface of the baffle is attached to the glue The upper surface of the pressure ring and the inner wall of the glue-filled pressure ring are glued together to solve the problem of fixing the assembly of the liquid level cable and the transmitter, the internal gap of the cable cannot be waterproofed, and the purpose of avoiding long-term extrusion and deformation of the wire core and air duct.