43results about How to "Anti-extrusion" patented technology

The invention discloses a fire-extinguishing bomb thrown through an unmanned aerial vehicle. The fire-extinguishing bomb comprises a shell, a fire-extinguishing agent, a hanging mechanism and a starting system; the starting system comprises a self-inflammation unit, a throwing delayer, an infrared detector and a starter, the fire-extinguishing agent is placed in the shell, and the starting system is installed on the shell; and the throwing delayer penetrates through the shell, the upper end of the throwing delayer is connected with the hanging mechanism which is a lifting ring, and the lower end of the throwing delayer is connected with the starter. The fire-extinguishing bomb thrown through the unmanned aerial vehicle is reasonable in design, simple in structure, good in exploding orientation of the fire-extinguishing bomb, little in detonating energy and capable of achieving umbrella type covering; and throwing can be conducted towards a fire scene by diversified means, fire fighting is more convenient to be conducted for a site, where people cannot easily enter, with a high mountain and a thick wood, and meanwhile safety of a rescue person is protected.

The invention discloses a graphene detection element for detecting the fine deformation of an equipment housing, and the element comprises a circuit board which is provided with a hollow-out part. The two faces of the hollow-out part on the circuit board are provided with graphene conductive films in a pasting manner. The graphene conductive films are attached to an insulating elastic base layer, and the upper and lower graphene conductive films are arranged oppositely. A gluing electrode is disposed between the graphene conductive films and the circuit board. The element is pasted at a to-be-detected part of the equipment. When the housing bears a force and then deforms, the effective contact area of the upper and lower graphene conductive films changes, thereby enabling the conduction impedance of the upper and lower graphene conductive films to change. Through detecting the change of the impedance, the element calculates the size of an external force, and further solves the deformation quantity of the equipment housing.

The invention provides bionic double-layer dressing, comprising acellular animal intestinal submucosa and a gel layer crosslinked to the same. The acellular animal intestinal submucosa and the gel layer jointly form the bionic double-layer dressing in double-layer structure. Preparation steps include preparing the acellular animal intestinal submucosa, preparing powder of the acellular animal intestinal submucosa, preparing a solution of the acellular animal intestinal submucosa, preparing the bionic double-layer dressing; the solution of the acellular animal intestinal submucosa is mixed witha crosslinking liquid, the mixture is added to the surface of the acellular animal intestinal submucosa, and freezing and crosslinking are performed to obtain the bionic double-layer dressing. The bionic double-layer dressing has excellent tension resistance, has semipermeable barrier, can prevent moisture evaporation and bacterial penetration, is good for healing of a wound, and enables wound healing speed to be evidently increased, with the wound healing speed evidently increased on third to seventh day after surgery.

The invention relates to a pre-mixed mortar material for buildings and particularly relates to high-efficiency corrosion resistant pre-mixed mortar. The mortar is prepared by mixing the following ingredients in percentages by weight: 5-20% of river sand, 10-30% of manufactured sand, 10-20% of flyash, 10-20% of granulated blast-furnace slag powder, 1-2% of polycarboxylic acid, 1-2% of sodium gluconate, 5-15% of cement, 5-15% of redispersible powder, 5-10% of kaolin and 5-10% of an electrolytic manganese slag waste. By using the pre-mixed mortar prepared at the ratio, the prepared concrete has the characteristics of being hard, corrosion-resistant and low in cost, and has wide applicability.

The invention discloses a composite type coal cutter cable with an optical fiber and an electric signal. The composite type coal cutter cable with the optical fiber and the electric signal comprises a line core, an inner jacket, a steel tape armoring layer and an outer jacket, wherein the inner jacket, the steel tape armoring layer and the outer jacket are wrapped outside the cable core in sequence. The line core comprises a plurality of power line cores and a plurality of control line cores, wherein the power line cores and the control line cores are mutually intertwisted. Each power line core comprises a power line core conductor, a power line insulating layer wrapped outside the power line core conductor, a high-strength wrapping layer and a metallic shield layer. Each control line core sequentially comprises an optical fiber core, an optical fiber protective layer, an elastic metal protective sleeve, an optical fiber insulating layer, a control line core body and a control line insulating layer. The composite type coal cutter cable with the optical fiber and the electric signal is resistant to bending and extrusion, and it is guaranteed that the optical fiber and a control line are not prone to breakage. The composite type coal cutter cable with the optical fiber and the electric signal further has the advantages that cost is low, and a circuit is simple.

The invention belongs to the field of carpets, and particularly relates to a graphene-based thermal insulation carpet. The graphene-based thermal insulation carpet comprises a carpet bottom layer, a first insulation layer, a heating layer, a second insulation layer and a carpet surface layer which are connected from the bottom to the top, a textile rubber layer is adopted in the carpet bottom layer, a PET polyester film is adopted in the first insulation layer, a frame type graphene thermostatic film is adopted in the heating layer, a thermal conductive silicone-PET polyester composite film is adopted in the second insulation layer, and a fiber soft material is adopted in the carpet surface layer. According to the graphene-based thermal insulation carpet, heating layer combined with the thermal conductive silicone-PET polyester composite film is adopted, heat generated by the heating layer is quickly transmitted to the carpet surface through thermal conductive silicone, and the graphene-based thermal insulation carpe has great thermal insulation performance and heat even stability.

The invention relates to the field of electrical connectors, in particular to an electrical connector and a contact element thereof. The electrical connector comprises an insulator and contact elements. The insulator is provided with mounting holes. Each contact element is provided with a base part which is spliced into the corresponding mounting hole from back to front. Each base part is provided with a forwards-backwards extended axis. An elastic barb is arranged on the base part of each contact element, and is gradually inclined and overhung towards the radial periphery of the base part from front to back. A forwards-backwards extended guide groove opposite to the elastic barb is formed on the hole wall of each mounting hole. Each elastic barb is matched with the corresponding guide groove to prevent the corresponding contact element from rotating in the corresponding mounting hole. A stopping table is arranged at the rear end of the groove bottom of each guide groove, and is matched with the rear end of the corresponding elastic barb to stop the corresponding contact element to backwards move relative to the insulator. A stepped surface facing a rear part is arranged on the front part of the hole wall of each mounting hole, and stops the front end of the corresponding base part to forwards move relative to the insulator. The production cost of the electrical connector is lowered.

The invention relates to a safe and steady power plug-socket system. Clutch spring plates are arranged on two sides of a plug. Rubber sheets are fastened around plug inserts. A clutch holder is disposed on the socket. Clutch spring plate retainers which are used with the clutch spring plates of the plug and can be fastened and loosened are disposed on two sides of the clutch holder. The clutch holder is provided with a partition covering the socket. The rubber sheets are arranged below the partition. Both the partition and the rubber sheets are provided with jacks corresponding to socket clips. The socket clips and a socket fixing plate are pressed by the rubber sheets. Fixed plates of the socket clips on two sides of the socket fixing plate are both abutted to the socket fixing plate. Moving plates of the socket clips are abutted to the fixed plates of the socket clips through an arm of force of a torsion spring, and the other arm of force of the torsion spring is abutted to the side wall of the socket. The safe and steady power plug-socket system is waterproof and damp-proof, free of plug-socket loosening, and ensures the fixed plates and moving plates of the clips to tightly contact with the inserted plug inserts.

The invention discloses a cross-shaped drainage pipe and a mold and machining method for forming the drainage pipe once. An open type cross-shaped groove type structural section is arranged on the tail section of the cross-shaped drainage pipe, so that the drainage pipe is not likely to be blocked by blood clots and blood buds, the extrusion resistance effect is achieved, and the drainage effect is good; when the drainage pipe is pulled out, the new blood bud tissue will be disengaged and drained along a channel, the drainage pipe can be easily pulled out, new muscle tissue damage is avoided, and no pain feeling is brought to patients. The middle closed type cross-shaped four-cavity structural section and the front circular pipe hollow structural section achieve the good drainage and liquid discharge effect. According to the mold for forming the drainage pipe once, the cross-shaped drainage pipe is formed once through difference combinations of a core rod, an outer loosing core and a cross-shaped inner loosing core. The machining processes are reduced, machining efficiency is improved and the cost is saved. The cross-shaped drainage pipe is applicable to the field of medical apparatuses and instruments.

The invention discloses a stainless steel sheath cable, comprising a plurality of copper core conductors; the outer wall of each copper core conductor is covered by a mica insulating layer; outer walls of mica insulating layers are covered by an inner sheath layer; the inner sheath layer is covered by an oversheath layer; the inner wall of the oversheath layer is uniformly provided with a stainless steel sheath layer; the ratio between the thickness of the stainless steel sheath layer and the diameter of the cable is 1:8. The cable has reasonable structure design, employs stainless steel sheath materials, possesses the condition of being used under harsh environments, and has the characteristics of extrusion prevention and fire resistance; meanwhile the cable employs an oversheath of low smoke halogen-free polyolefin materials, and allows the surface of the cable to form a wearing resistant layer, thereby enhancing a cable wearing resistance property, guaranteeing cable use quality, and prolonging the service life of the cable.

The invention relates to the field of cable preparation, in particular to a safe composite high-pressure conveying cable. The safe composite high-pressure conveying cable comprises a high-pressure conveying pipe and a woven sheath located outside the high-pressure conveying pipe, and further comprises a reinforcing cable, optical fibers and a cable, wherein the reinforcing cable, the optical fibers and the cable are located in the woven sheath; the reinforcing cable comprises a woven layer in the center and a high-strength plastic layer located outside the woven layer; flat and straight fibers are arranged among the reinforcing cable, the optical fibers and the cable and arranged around the optical fibers and the cable in parallel. The safe composite high-pressure conveying cable is unique in design, and the reinforcing cable is introduced into the composite high-pressure conveying cable, so that a conveying pipeline has the functions of resisting high pressure and squeezing and being not prone to deformation. The safe composite high-pressure conveying cable further has the advantages of being reasonable in design, novel in concept, simple in structure, economical, environmentally friendly, and capable of achieving industrial production easily, effectively overcoming the defects in the prior art and market products, and meeting the demand of the market.

The invention provides an anti-extrusion medium for hydraulic drawing forming of a draft angle-free oil pan. The anti-extrusion medium is prepared from the following components in percentage by mass: 29 to 31 percent of mineral oil, 9 to 11 percent of carboxylate, 8 to 12 percent of boric acid or borate, 19 to 21 percent of alkyl alcohol amine, 9 to 11 percent of petroleum sodium sulfonate, 9 to 11 percent of propylene glycol ether, 8 to 10 percent of nonionic surfactant, 0.3 to 0.7 percent of defoamer and 0.3 to 0.7 percent of organosulfureous fungicide. The anti-extrusion medium is applied to a die cavity in hydraulic drawing forming of the draft angle-free oil pan to replace existing drawing oil, and drawing forming of the draft angle-free oil pan is realized in the same drawing die; the product yield reaches 98 percent, parts are slightly scratched, the defects that a cold stamping die rubs a material unevenly, and the thickness change of the material is uneven are overcome, limit cracking is avoided, and the size meets the drawing requirements.

The invention discloses a high-frequency plasma cutting gun. An injection molded body, an insulator, a diverter, a diversion tube, an electrode and a cutting nozzle are arranged inside a large inner diameter cylindrical structure of a gun head body, the injection molded body is matched with the large inner diameter cylindrical structure in a standstill locking mode, a diverter boss is inserted into the injection molded body, the diversion tube is installed in an inner cavity of the diverter, a diversion cavity is arranged inside the diversion tube, the electrode is arranged outside the diversion tube, an annular airflow gap is arranged between the electrode and the diversion tube, a first diversion channel is arranged on the diverter, the first diversion channel is communicated with the inner cavity of the diverter, a second diversion channel is arranged between the insulator and a protective cap, the cutting nozzle is connected to the bottom of the electrode, a vortex ring is arrangedbetween the cutting nozzle and the diverter, vortex holes are formed in the surface of the vortex ring, and a plasma arc gap is arranged between the electrode and the cutting nozzle. The high-frequency plasma cutting gun has the characteristics of anti-falling-out and anti-rotation, a gun head can be replaced, airflow fully flows back to the gun head everywhere in a surrounding mode, the high temperature of the gun head and consumables is effectively reduced, and the service life is prolonged.

The invention discloses a food insulation cabinet. The food insulation cabinet comprises a cabinet body, a plurality of tray structures, a plurality of infrared heaters, a control system, an operation panel, a paper card placing groove and a switch, wherein the front and rear sides of the cabinet body run through each other; the plurality of tray structures are arranged inside the cabinet body and comprise trays and tray supports; the trays are arranged on the tray supports; tray feet are respectively arranged at the four corners at the bottoms of the trays and four tray grooves are formed in the corresponding positions on the tray supports; two locating pillars are also arranged on each tray support; two tray block pieces are arranged at the bottom of each tray; the control system comprises a plurality of temperature probes; and each temperature probe is connected with each top heater or each bottom heater. The food insulation cabinet has the beneficial effects that the trays can break away from the bottom heaters when pulled out, thus avoiding friction between the trays and the heaters; and the trays can fall into the tray supports to come into contact with the bottom heaters when pushed back, thus better achieving the insulation effects; the tray supports can be bidirectionally pulled and have structures preventing the tray supports from coming off.

A tea ridge depth detecting device based on infrared range finding is formed by a microprocessor module, a range finding module, a transmission module and a shell module. The microprocessor module isformed by a stm32f103c8 microprocessor and a peripheral circuit. The range finding module selects an infrared range finding sensor GP2Y0A21. The transmission module is formed by a driving bevel gear,a 1# driven bevel gear, a 2# driven bevel gear, a 1# belt transmission device, a 2# belt transmission device, an LX371WG motor and a carrying frame. The shell module is formed by a steel top cover, anouter cylinder made of a polypropylene material, an inner cylinder, and a contact piece. Left and right sides of an inner wall of a cylinder, which are close to a top end, are symmetrically and fixedly connected to a steel 1# lifting rod and a 2# lifting rod through a screw thread. The microprocessor module is fixed on an inner surface of the top cover in the shell module and is used for drivingthe LX371WG motor in the transmission module. The range finding module is placed directly under the microprocessor module and is directly connected to the microprocessor module. The device has characteristics of accurate and rapid range finding, and high stability.

The invention discloses an extrusion-resistant wash bag. The extrusion-resistant wash bag comprises a main body, wherein the main body comprises an inner layer and an outer layer; an elastic device isarranged between the inner layer and the outer layer; multiple cavities are uniformly arranged at the inner part of the inner layer; sponge bodies are arranged at the inner parts of the cavities. According to the extrusion-resistant wash bag disclosed by the invention, the technical problem of poor extrusion resistance of a wash bag in the prior art is solved.