4results about How to "Barrier infiltration" patented technology

The utility model discloses a kind of high-strength pressure-resistant CPVC cable protection pipe, belong to cable protection facility technical field, its technical scheme main points include pipe body, the both ends of the pipe body are respectively provided with flange end and recess end, the flange end and recess end cooperation form socket-and-spigot type connecting structure, the inside of the pipe body is provided with center pressure-bearing column, and the surface of center pressure-bearing column is annularly provided with a plurality of pressure-bearing plate integrated with it, cable placing cavity is formed between adjacent pressure-bearing plate, by the multilayer composite structure of pipe body and inside center pressure-bearing column, pressure-bearing plate form inside and outside collaborative support, greatly improve overall extrusion resistance, can resist underground buried depth pressure or ground heavy object rolling pressure, avoid pipe body deformation rupture, and buffering heat insulation layer absorbs external impact energy through closed-cell bubble, reduce construction collision, stone impact damage to pipe body, and inner wall anticorrosive layer and CPVC outer pipe layer cooperate to resist corrosion and wear, adapt to complex soil environment.

The utility model discloses a sealing waterproof device for a vehicle-mounted electronic product, and belongs to the technical field of sealing devices. Aiming at the problem that the side surface of a vehicle-mounted electronic product is not easy to seal in the prior art, the sealing waterproof device provided by the utility model has the advantages that the longitudinal groove is formed in the edge of the binding surface of the upper shell and the lower shell, and the sealing ring made of hard plastic is embedded into the groove to form a first waterproof barrier, so that the sealing waterproof device is not easy to deform during installation due to the material characteristic; and after being closed, the shell is tightly attached to a shell seam, so that liquid permeation is effectively blocked. A transverse groove is formed in the outer side of the sealing ring, a detachable silica gel side sealing strip is clamped in the transverse groove, the soft elasticity of silica gel fills a gap of a binding face in a self-adaptive mode under the closing pressure of the shell, and particularly secondary sealing is formed for a complex curved face of the side face. The interface lantern ring integrated on the sealing ring directly wraps the circuit interface, the position of the sealing ring is fixed through integrated design, the interface is protected in all directions, and the problem that the side face of a traditional connector is weak in sealing is solved.

The utility model discloses a crimping type plug structure which comprises a transition cover, a wire clamping plate is arranged on the inner side of the right end of the transition cover and is connected with the transition cover through a fastening screw, a locking cap is connected to the inner side of the wire clamping plate through a first screw and a spring washer, a connecting cap is arranged on the outer side of the left end of the transition cover, and a rubber sealing ring is arranged on the inner side of the end face of the left end of the transition cover. A jack insulator is arranged on the inner side of the left end of the transition cover, a jack cover plate is arranged on the inner side of the jack insulator, an integrally-formed nut is arranged in the middle of the inner side of the jack cover plate, the jack insulator and the jack cover plate are connected through a second screw and the nut, and crimping jacks are inserted into the inner side of the jack insulator and the inner side of the jack cover plate. According to the utility model, the functions that the nut is integrally formed, the nut is stable and does not fall off, rotation is prevented, rainwater, sewage and other liquids are effectively prevented from permeating, the connection between the contact element and the lead is tighter, and the contact resistance is small are realized.

The utility model discloses a water tank table-board structure facilitating disassembly and assembly of a water tank functional part. The water tank table-board structure comprises a water tank, a connecting and fixing seat and a locking part, a fixing hole is formed in the table top of the water tank; a threaded hole which does not penetrate through the upper surface is formed in the periphery of the fixing hole in the table top; the connecting fixing seat is provided with a flange plate and a fixing cylinder; an internal thread used for being connected with a water outlet functional part is arranged in the fixing cylinder. The flange plate is provided with a connecting through hole, and the locking piece penetrates through the connecting through hole and is locked in the threaded hole. According to the utility model, the sunken threaded hole design is adopted, so that the locking plane is lifted to a tabletop operation layer, the traditional vertical blind operation is converted into visual horizontal operation, and the operation space of a maintenance tool is expanded to the effective stroke of a conventional wrench; the structure that the threaded hole does not penetrate through the table board effectively prevents liquid from permeating the laminated board base material. The structure reduces the later maintenance cost, prevents the silicone sealing layer from being damaged due to overall disassembly of the water tank, and ensures the sanitary safety level of a kitchen.