15results about How to "Will not harm" patented technology

The invention provides a large-area-array infrared detector chip thinning method capable of protecting a metal electrode, and belongs to the technical field of infrared detector preparation. The problems that a photoresist protection circuit needs to be adopted firstly in a traditional back grinding and polishing process, the glue curing time is long, the process consumed time is long, and the efficiency is low are solved. Comprising the following steps: growing a dielectric layer for protecting a metal electrode on a chip; bonding the chip on the glass substrate, and pasting accompanying strips on the periphery of the chip; then grinding and polishing are carried out until the required chip thickness is reached; photoetching plates corresponding to the ROIC and the FPA of the chip are manufactured, the chip is taken down from the glass substrate after polishing is completed, then a layer of photoresist is evenly coated on the whole chip, metal electrodes on the periphery of the chip are exposed after development of the photoetching plates, and then post-baking is conducted on the chip; removing the dielectric layer; cleaning the photoresist on the surface; according to the invention, the metal electrode of the detector chip can be protected.

The utility model discloses a kind of vascular surgery arteriovenous fistula hemostasis device, it is related to vascular surgery technical field.Aiming at the problem that existing arteriovenous fistula hemostasis device is easy to cause fistula occlusion due to excessive compression, the utility model includes fixator and the pressurizer being set in the upper portion of fixator.The pressurizer is constituted by mounting cylinder, pressing assembly and power assembly, power assembly promotes pressing assembly to slide to exert pressure, when reaching maximum compression value, make pressing assembly and power assembly lock on mounting cylinder by self-locking mechanism, prevent excessive compression.Pressing assembly includes pressing slide bar and pressing head, and power assembly includes push rod and self-locking piece.Fixator is stably worn in the hemostasis site of patient by pressing plate and constraint assembly.The utility model is suitable for vascular surgery, nephrology, interventional department and other arteriovenous fistula hemostasis treatment, can effectively stop bleeding and avoid fistula occlusion risk.

The utility model provides a slow collapsible hinge, which relates to the technical field of hinges and comprises a collapsible mechanism, the top of the collapsible mechanism is provided with a limiting mechanism, the collapsible mechanism comprises a wall plate, one side of the wall plate is provided with a fixing plate, the outer side of the fixing plate is provided with a hollow ring, the hollow ring is internally provided with an arc-shaped block, and the arc-shaped block is connected with the limiting mechanism. A center roller is arranged at one end of the arc-shaped block, and a hollow ring is arranged on the outer side of the center roller. Under specific conditions, when large pressure is applied to the leaf plate, the outer ring can be pressed and extruded, meanwhile, the inner ring can be pressed to the arc-shaped block in the same mode, the arc-shaped block is forced to deform, and the hinge cannot be damaged, so that even if the leaf plate generates large pressure, the hinge can still keep complete functions, and the service life of the hinge is prolonged. Normal operation of the device is ensured, and the service life of the hinge can be prolonged through the design of dispersing pressure and reducing extrusion force.

This utility model discloses a magnetic charging base for walkie-talkies, relating to the field of charging technology for wired communication equipment. It includes a base assembly, and a magnetic head assembly is used for charging the walkie-talkie. The magnetic head assembly is connected to a control box assembly via a plug cable. The end face of the base assembly has a charging interface, a groove, and an anti-slip liner, while the end face of the magnetic head assembly has a charging port, a magnetic surface, and a protrusion. This magnetic charging base for walkie-talkies uses a magnetic connection for charging through the cooperation of the charging interface, charging port, and magnetic surface. It utilizes magnetic force to achieve a fast and stable connection, eliminating the need for cumbersome physical plugging operations, making operation simple and convenient. Simultaneously, the mechanical interlocking of the groove and protrusion assists the magnetic connection, and the high-friction anti-slip liner forms a three-dimensional anti-slip mechanism, solving the problem of insufficient stability in traditional magnetic charging and achieving a multi-dimensional anti-displacement effect.

The application provides a kind of electric automobile battery cooling system set blowing system integrated device, belongs to battery cooling technical field. Including box, the top of box is boltedly connected with box cover, the two sides of box are inserted with circulating pipe, the outer wall of circulating pipe is sequentially fixedly connected with water pump, radiator and expansion kettle, the outer wall of circulating pipe is sleeved with heater, the side of radiator is fixedly connected with three-way pipe;Cooling assembly, cooling assembly is used to assist staff to install battery and cool battery, cooling assembly is connected with box and box cover. The application can fix and limit square battery after staff installs cooling assembly, achieve the effect of installing and fixing square battery through cooling assembly, facilitate staff to install square battery, and cooling assembly can wrap four sides of square battery, improve the cooling range and cooling effect of square battery.

This invention relates to the technical field, specifically a method for laying a flexible, intelligent hydrogen transmission pipeline that enables rapid installation. The pipeline includes a polyethylene pipe, the outer side of which is covered with a second adhesive layer. The polyethylene pipe and the second adhesive layer are bonded together by a fiberglass tape reinforcing layer. The outer side of the second adhesive layer is covered with a first adhesive layer, and the second adhesive layer and the first adhesive layer are bonded together by an aluminum foil layer. The first adhesive layer is then covered with a polyethylene pipe protective sleeve. This invention avoids secondary excavation of the pipeline, does not damage existing roads and facilities, does not harm urban green spaces, avoids road congestion caused by construction, utilizes existing or abandoned pipelines, allows for rapid installation, requires fewer personnel, is unaffected by weather, and shortens the construction period.

The application belongs to the field of antimicrobial materials, and discloses an antibacterial bioactive coating and a preparation method thereof. The application converts β-cyclodextrin into a dialdehyde derivative through periodic acid oxidation, and copolymerizes the dialdehyde derivative with acrylated chitosan under the initiation of ultraviolet light free radicals to prepare an intelligent copolymer which can be specifically cut by β-cyclodextrinase. Natural plant polyphenols are loaded in the copolymer to realize enzyme-triggered precise release and maintain long-acting antibacterial activity. After coating, the solvent is removed, the micropores are closed, and the molecular-level secondary crosslinking is completed in one step under the treatment of supercritical CO2 environment at 35 MPa and 40 DEG C for 2 hours. Traditional high-temperature drying is not needed, internal stress and crack generation are significantly reduced, and the stability of the pores is improved. The final coating has self-repairing, high adhesion and scrub resistance, and the preparation process is environmentally friendly and efficient, and is suitable for the surface long-acting antibacterial protection of medical devices, food packaging and public facilities.

The utility model discloses a cleaning device for a smelting furnace heat storage ball, which comprises a chassis, a conical hopper disc, a separation net and a spiral channel, the conical hopper disc is arranged on the chassis, the spiral channel is arranged on the conical hopper disc, the spiral channel is sequentially divided into a cleaning section, a blowing section, a cleaning section and a draining section along the advancing direction of the heat storage ball, and the spiral channel is arranged with a high outside and a low inside. The separation net is installed above the draining section, a water outlet and a ball outlet are formed in the center of the spiral channel, the ball outlet is higher than the water outlet, and the ball outlet is communicated with the center of the separation net. The device is compact in structure, suitable for small-space operation and convenient to carry and move, in addition, the heat storage balls can be sequentially cleaned, blown, cleaned and drained through the spiral channel, the purpose that the heat storage balls can be used after being cleaned is achieved, the heat storage balls cannot be damaged, and the device is convenient to use and thorough in cleaning.

This utility model discloses a tilting core-pulling mold, including an upper mold plate and a lower mold plate. An upper mold core is installed inside the upper mold plate, and a lower mold core is installed inside the lower mold plate. In-mold screws connect the upper mold plate and the upper mold core, and the lower mold plate and the lower mold core. A product forming cavity is formed between the upper and lower mold cores. A hydraulic cylinder is installed on the outside of the lower mold plate. The drive end of the hydraulic cylinder is connected to a slider guide seat. An tilting groove is provided on the slider guide seat, and a tilting slider core is slidably connected to the tilting groove. The upper end of the tilting slider core is inserted into the product forming cavity. This tilting core-pulling mold is designed for die-casting products with tilted structures. By using a hydraulic cylinder to control the tilting slider core to tilt at a certain angle, the tilted structure of the product is not damaged during demolding, and the internal structure of the mold is saved, reducing the manufacturing cost of the mold.

The invention relates to the technical field of vacuum bag cleaning, and discloses a cleaning device for vacuum bag conveying, which comprises a rewinding machine and a rewinding frame, a continuous cleaning assembly is arranged between the rewinding machine and the rewinding frame, the continuous cleaning assembly comprises a cleaning shell, a cleaning screw rod and a driving part, the cleaning shell is fixedly connected between the rewinding machine and the rewinding frame, and the cleaning screw rod is fixedly connected between the cleaning shell and the rewinding frame. The side, close to the rewinding machine, of the cleaning shell is arranged to be trapezoid, when a vacuum bag passes through the cleaning shell, under the trapezoid structure, small dust is blown away by airflow through the guiding effect of an inclined face, primary cleaning of the surface of the vacuum bag is achieved, meanwhile, the cleaning lead screws located in the vertical direction rotate to conduct secondary cleaning on the vacuum bag, and in the rotating process of the cleaning lead screws, the cleaning lead screws can clean the surface of the vacuum bag. The contact area between the dust removal device and the vacuum bag is not large and continuous, the contact mode can effectively remove impurities and cannot damage the vacuum bag, dust and the impurities are easily brought to the two sides of the vacuum bag under the rotation effect, and impurity residues are effectively avoided.

The utility model discloses a gas detector filtering structure which comprises a gas inlet pipe arranged at the top of a gas detector body, a gas filter is arranged above the gas inlet pipe, and a connecting assembly used for reinforcing the gas filter is arranged outside the gas inlet pipe in a sleeved mode. The bottom of the connecting assembly is connected with the top of the gas detector body, and the gas inlet pipe is communicated with the bottom of the gas filter through the connecting assembly; according to the gas detector, the sleeve is located outside the gas inlet pipe and does not make contact with the gas inlet pipe, the gas inlet pipe can be protected and prevented from being directly collided and polluted by the outside, then the purpose of protecting the gas detector body is achieved, when the gas filter is collided and impacted, the gas inlet pipe cannot be directly influenced, and the gas detector is safe and reliable. The distortion and the deformation of the gas inlet pipe cannot be caused, and the stable installation and the stable use of the gas filter can be ensured when gas detection is carried out.

The utility model relates to the technical field of circuit boards, in particular to a high-precision compression-resistant integrated PCB (printed circuit board). According to the technical scheme, the protective device comprises a protective frame, heat dissipation holes, a pressure-resistant plate and a PCB, a pressure-resistant groove is formed in the middle of the protective frame, a plurality of first mounting holes are formed in the two sides of the protective frame at equal intervals, a mounting frame is mounted below the pressure-resistant groove in a clamped mode, a gasket is arranged on the upper surface of the mounting frame and made of rubber materials, and the heat dissipation holes are formed in the upper surface of the mounting frame. Adjusting grooves are symmetrically formed in the positions, at notches of the pressure-resistant grooves, of the protection frame, and second mounting holes are formed in the positions, on the surfaces of the protection frame, of the sides, close to the pressure-resistant grooves, of the adjusting grooves. According to the device, the threaded rod can be driven to rotate along with the rotating shaft by rotating the rotary knob, then the pressing plate is driven to vertically move along the limiting rod, and the vertical movement of the pressing plate can apply pressure to the PCB, so that pressure adjustment of the PCB is realized, it can be ensured that the PCB is not loosened or deformed in the working process, and the working efficiency is improved. And meanwhile, high precision and stability of the circuit board are ensured.

A chassis air tightness testing fixture is disclosed. The chassis includes a chassis base and a chassis cover. The fixture includes a mounting base and a pressure plate assembly. The shape of the mounting base matches the shape of the chassis base, and the chassis base is mounted on the outside of the mounting base. The pressure plate assembly is connected to the mounting base via a rotating shaft, allowing the pressure plate assembly to rotate around the rotating shaft toward the mounting base, thereby pressing the chassis base and chassis cover between the mounting base and the pressure plate assembly. An inflation hole is provided on the chassis base. Therefore, air tightness testing can be performed simply by inserting the inflation tube of an air tightness tester through the inflation hole. The entire test is convenient, low-cost, and does not damage the chassis housing. Furthermore, the entire chassis air tightness testing fixture has a simple structure and is easy to manufacture.

The present application relates to a kind of positive sheet packing, laminated sheet, finished product conveying collaborative process, comprising the following steps: step 1: in the process of plate conveying mechanism, positive sheet feeding, positive sheet bag packing, positive sheet stacking after packing are completed in plate conveying process;Step 2: after packing plate falls, negative sheet adsorption transfer mechanism is transferred to the plate group stacking mechanism above negative sheet, negative sheet falls to packing plate, and the staggered stacking of negative sheet and packing plate is realized by circulation work, and plate group is formed;Step 3: finished product output mechanism realizes the turnover of plate group and plate group is transported to next process vertically.This application is small in overall volume, and occupies less space, and is easy to place;High degree of automation, realize automatic feeding, automatic feeding, automatic packing, automatic stacking into plate group, automatic discharge of fully automated operation.

The invention belongs to the technical field of air conditioner refrigerants, and particularly relates to an energy-saving efficient novel air conditioner refrigerant and a preparation method thereof. The invention relates to an energy-saving high-efficiency novel air conditioner refrigerant, which is prepared from the following components in percentage by weight: 20 to 30 percent of propane, 15 to 30 percent of carbon dioxide, 10 to 15 percent of difluoromethane, 10 to 15 percent of pentafluoroethane, 2 to 5 percent of trans-hexafluorobutene, 2 to 5 percent of tetrafluoropropene, 10 to 20 percent of PPG-2000 and 15 to 20 percent of deionized water. The global warming potential value of the refrigerant is remarkably lower than that of traditional Freon and hydrofluorocarbon, the influence on climate change is reduced, chlorine harmful to the ozone layer is not contained, and damage to the ozone layer is avoided; compared with some traditional refrigerants, the refrigerant has low toxicity and is relatively safe during use, meanwhile, the refrigerant can be compatible with an existing refrigerating system to be modified, the requirement for comprehensively replacing equipment is reduced, the refrigerant can provide good thermodynamic performance, and the energy efficiency of the system can be improved.