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.

The invention discloses a waterproof down processing device. The device comprises a machine table, transmission rollers are arranged at the two ends of the machine table, and a conveyor belt is woundbetween the transmission rollers; one end of the machine table is provided with an oblique rail, one end of the oblique rail is in contact with the conveyor belt, and the other end of the oblique railis connected with a dryer; a drug feeding hole is formed in the top of the dryer and internally provided with a drug feeding pipe, one end of the drug feeding pipe is connected with a nozzle, the other end of the drug feeding pipe is connected with a drug feeding box, and drug feeding ports are formed in both ends of the bottom of the dryer and connected with hot air ports through hot air pipes;a down outlet runs through the top of the end face of the dryer and internally provided with a down outlet pipe, the down outlet pipe is connected with a down collecting box, and a control panel is arranged on the end face of the machine table. Waterproof treatment of down is achieved, the problem that existing down is not waterproof during use is effectively solved, fully automatic production operation of the waterproof down is achieved, and the production efficiency is improved.

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 waterproof contact pin terminal that is simple in structure, convenient to operate and install and excellent in waterproof effect. The waterproof contact pin terminal comprises a plurality of positive electrode contact pins that are arranged side by side, a positive electrode base, an outer shell, a plurality of tuning fork type negative electrode contact pins that are arranged side by side and are corresponding to the number of the multiple positive electrode contact pins, and a negative electrode base; the negative electrode base is tightly pressed with the lower part of the outer shell through ultrasonic wave; and meanwhile, the spaces between the tuning fork type negative electrode contact pins and the negative electrode base are coated with waterproof glue, so that the tuning fork type negative electrode contact pins are sealed in a sealing space formed by the outer shell and the negative electrode base; the problem that the conventional contact pin terminal is non-water-tight is solved; and the waterproof effect of the contact pin terminal provided by the invention is strictly ensured, so that the connection performance of a whole electric appliance is improved, and the use safety of equipment is ensured.

The invention discloses a waterproof key structure and an electronic device. The waterproof key structure comprises a closed shell, a conducting coil, an inductor and a dial wheel. The closed shell is provided with a groove, the conducting coil is located in the closed shell and wound around the groove, the inductor is located in the closed shell and electrically connected with the two ends of the conducting coil, and the dial wheel is magnetic, arranged outside the closed shell and located in the groove. When the dial wheel moves clockwise or anticlockwise, the conducting coil cuts magnetic induction lines generated by the dial wheel, and currents are generated to trigger the inductor to achieve the key function. The electronic device comprises the waterproof key structure, the problem that a dial wheel structure is not waterproof is solved, and the closed waterproof effect is achieved.

The invention relates to an inorganic ecological fireproof blast pipe board, and a production method and an application thereof. The fireproof blast pipe board is produced from, by weight, 100 parts of gelling powder, 60-86 parts of a compounded glue, 0-40 parts of a mineral filler, 0.8-10.0 parts of reinforced fibers and 0-5.8 parts of a fiberglass mesh, wherein the gelling powder is prepared through compounding a calcium-containing inorganic matrix, alga powder and a magnesium-based gelling material according to a weight ratio of (10-40):(8-28):(32-72). The invention further discloses the production method and the application of the fireproof blast pipe board. The fireproof blast pipe board microscopically has a network cross connection structure, macroscopically has a smooth surface anda good flexibility, and solves the general problems of rough surface, brittle cracking and the like of existing fireproof boards and products; and above components are reasonably matched, so the fireproof blast pipe board has air purifying, bacterium resisting and humidity regulating effects and other ecological properties, and also has the efficacy of resisting water and moisture, reducing the weight and accumulating heat.

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.

The invention provides an integrated expansion joint system, which includes two expansion joint bases, two expansion joint cover plates, an organ plate and an aluminum alloy profile. The two expansionjoint bases and the two expansion joint cover plates are symmetrically arranged on the two sides of the aluminum alloy profile correspondingly one to one, grooves are formed in the opposite sides ofthe expansion joint bases, the two ends of the organ plate are clamped in the two grooves, the bottoms of the other sides of the expansion joint bases are clamped with clamping plates on one sides ofthe tops of the expansion joint cover plates through buckle plates, two opposite third L-shaped clamping plates are arranged on the other sides of the expansion joint cover plates, ethylene propylenediene terpolymer rubber strips are clamped between the two opposite third L-shaped clamping plates, the bottom of the aluminum alloy profile are arranged on the ethylene propylene diene terpolymer rubber strips of the two expansion joint cover plates, and left side plates and right side plates are arranged between baffles and the buckle plates of the two expansion joint bases correspondingly, wherein the sides, near the left side plates, of the aluminum alloy profile are fixedly clamped with the expansion joint bases through a second L-shaped buckle plate and a first L-shaped buckle plate correspondingly.

The invention discloses a floor edge waxing production line. The floor edge waxing production line comprises a long edge waxing device, a short edge waxing device and a transitional device, wherein the long edge waxing device and the short edge waxing device are perpendicular, and the transitional device enables floor transition to be achieved. The floor edge waxing production line is simple in structure and reasonable in design and can wax the long edges and the short edges of floors effectively; the smooth transition of the floors is achieved, influence of water on the floors is effectively prevented, the problem that floor edges are not waterproof is solved, and the service life of the floors is prolonged.

The invention relates to a double-door arc pressing-type waterproof floor socket which comprises a bottom case, a functional element, a panel and an upper cover, wherein the functional element is arranged in the bottom case, the upper cover is divided into a left upper cover and a right upper cover which are respectively tied in the panel, a semicircle hole is respectively cut on the opposite edges of the left upper cover and the right upper cover, the two semicircle holes form a round hole for a plug lead to go out when the left upper cover and the right upper cover are closed, the middle ofthe upper surface of the left upper cover is provided with a left groove used for fastening an arc pressing board which is provided with an arc pressing screw nail, the middle of the upper surface ofthe right upper cover is relatively provided with a right groove which is provided with a screw hole matched with the arc pressing screw nail, the arc pressing board is pressed in the left groove andthe right groove when the left upper cover and the right upper cover are closed, and the arc pressing screw nail is tightly screwed. When the socket is used by being plugged in a plug, the waterprooflevel thereof reaches IP66.

The invention provides a waterproof anti-collision expanded connecting structure of handheld terminal equipment. The waterproof anti-collision expanded connecting structure comprises a host machine and a sub-machine, wherein mutually-adapted guide rail structures are arranged on the housings of the host machine and the sub-machine to be butted, and the inner parts of the guide rail structures are provided with connecting pieces which are used for circuit and communication connection of the host machine and the sub-machine. The host machine has basic functions of voice communication, satellite positioning, pickup, taking a picture, bluetooth and the like, and the sub-machine can be arbitrarily switched into expanded sub-machines with various functions as needed, such as printers, POS (Point-of-Sale) card readers, identity recognizers, fingerprint readers, bar code readers and the like. Meanwhile, according to various usages, the host machine can arbitrarily select different sub-machines to form handheld terminal equipment which is suitable for various fields of public security, electric power, banks, logistics, finance, railway and the like. The waterproof anti-collision expanded connecting structure has the characteristics of firm and stable combination, small size, one-hand operation, one machine for multiple purposes, convenience in carrying and the like.

The invention relates to a rotary switch, its control method and an induction cooker. The rotary switch includes: a knob, a substrate and a controller, wherein the knob is rotatably arranged on one side of a light-transmitting panel of a household appliance, and the substrate is arranged on a light-transmitting panel. On the other side of the panel, the substrate and the knob part are arranged correspondingly; at least one light emitting source and at least one light detecting part are arranged on the substrate, wherein both the light emitting source and the light detecting part are electrically connected to the controller; The reflective block is used to reflect the light emitted by the light source to the light detection part, and the controller is used to determine the rotation direction and angle of the knob part according to the intensity of the reflected light detected by the light detection part. The rotary switch of the present invention solves the problem that the existing power adjustment knob cannot be waterproofed due to opening holes when it is used in an electromagnetic cooker, and at the same time, the production cost of the rotary switch is low, thereby reducing the cost of the electromagnetic cooker.