15results about How to "Insulate the influence" patented technology

The invention provides an ultra-high-speed electric connector which comprises an insulating body, the insulating body is provided with a lengthwise slot, a plurality of terminal slots are formed in lengthwise side walls on the two sides of the slot respectively, and a fool-proof part is arranged in the slot and used for dividing the insulating body into a power supply and low-speed signal area and a high-speed signal area which are located on the two sides of the fool-proof part; the plurality of terminals comprise differential signal terminals distributed in the high-speed signal area and other terminals distributed in the high-speed signal area and the power supply and low-speed signal area, every two differential signal terminals are adjacent, and two sides of every two adjacent differential signal terminals are respectively provided with a grounding terminal; every two adjacent differential signal terminals and two grounding terminals located on the two sides of the two differential signal terminals form a terminal module, and the two differential signal terminals and the two grounding terminals of each terminal module and an insulating block inserted into the insulating body are formed in an embedded mode. The ultra-high-speed electric connector can enable signal transmission to be better and more stable.

The application relates to a replaceable optical fiber monitoring cable and a replacement method thereof, and belongs to the technical field of optical fiber monitoring. Step one: when the optical fiber in the monitoring cable needs to be replaced, a part of the outer tube, the stainless steel wire layer and the inner tube at one end of the monitoring unit in the monitoring cable are peeled off in sequence, so that one end of the optical fiber unit to be replaced is exposed; step two: aramid yarn at one end of the exposed optical fiber unit to be replaced is peeled off, and the peeled aramid yarn and aramid yarn in the optical fiber unit to be installed are uniformly wound together, and the two are integrated; step three: the other end of the optical fiber unit to be replaced is uniformly pulled out, and the optical fiber unit to be replaced is uniformly wound on the take-up frame at a constant speed; the optical fiber unit to be installed is uniformly released through the pay-off frame at a constant speed, the optical fiber unit to be installed is pulled and introduced into the monitoring cable, and the replacement of the optical fiber is realized. The application can quickly replace the optical fiber, saves time and effort, and ensures that online monitoring can be continuously carried out during the use of the overhead cable.

The sand separation device comprises a sand blasting machine body, a sand separator used for storing sand is arranged on the sand blasting machine body, a vibration assembly is arranged on the sand separator and comprises a pneumatic vibrator arranged on the outer surface of the sand separator, and the pneumatic vibrator is connected with an air source through an air control pipeline. The sand blasting device has the effect of improving the sand blasting quality of the sand blasting machine.

The utility model relates to water conservancy technical field especially a water conservancy shunt flow regulating device, including door frame, door frame top fixed mounting has power box, power box lower extreme is connected with screw rod, screw rod outside thread is equipped with movable seat, movable seat one end fixed mounting has gate, gate slidingly arranged in door frame, door frame bottom fixed mounting has bottom sill, the back of door frame top and bottom is fixed mounting has upper support board and lower support board respectively, screw rod lower extreme penetrates upper support board and is connected with lower support board rotation, and upper support board lower surface and movable seat upper surface fixed mounting have first protective sheath, and this water conservancy shunt flow regulating device can carry out the protection to screw rod, avoids the influence transmission performance of screw rod inside residual dust or sandstone.

The utility model provides a kind of bus expansion connector of ultrahigh transmission rate, including an insulating body, with a length slot, multiple terminal slots are respectively arranged in the length side wall of the both sides of slot, an anti-stupid part is arranged in slot, for the insulating body is separated into the power supply and low-speed signal area and high-speed signal area located at the both sides of anti-stupid part;Multiple terminals, including the differential signal terminal distributed in high-speed signal area and the remaining terminal distributed in high-speed signal area and power supply and low-speed signal area, every two differential signal terminals are adjacent, and every two adjacent differential signal terminals are embedded with one insulating block inserted in insulating body Forming, insulating block is hollow at the gap between two differential signal terminals;The remaining terminals are all independent terminals inserted in corresponding terminal slot of insulating body;The bus expansion connector of ultrahigh transmission rate can make signal transmission more good and stable.

The utility model discloses an ultralow-temperature stop valve with a pressure relief device, and relates to the technical field of ultralow-temperature stop valves of pressure relief devices. The ultralow-temperature stop valve with the pressure relief device comprises a valve body, a cold-resistant protective sheet, a protective shell and a limiting unit. According to the ultralow-temperature stop valve with the pressure relief device, the structure that the cold-resistant protection unit is arranged outside the main valve body is adopted, the first protection layer is made of stainless steel, physical protection and external impact resistance are conveniently provided, the second protection layer is made of polyurethane foam, and the ultralow-temperature stop valve has excellent heat preservation performance and mechanical strength; the third protective layer is made of an aluminum silicate fiber felt material and has a low heat conductivity coefficient and good flexibility, and the cold-resistant protective unit can achieve the purposes of protection and heat preservation on the valve body main body.

The application relates to the technical field of performance evaluation of a biological aerosol sampler, and provides a biological aerosol sampler performance evaluation method, which comprises the following steps: environment construction: adjusting and maintaining the temperature, humidity, air pressure and air cleanliness in a calibration cabin to a preset target range; aerosol generation and homogenization: generating standard aerosols containing a target tracer in the calibration cabin, and mixing the air in the cabin to form a test aerosol environment with uniform spatial concentration distribution in a sampling area; dynamic sampling: making the detected sampler and a comparative sampler sample at multiple different spatial points in the calibration cabin; data comparison and analysis: performing performance calibration on the detected sampler according to the sampling data of the detected sampler and the comparative sampler. The environment conditions highly close to actual application scenarios are constructed, and the comprehensive performance of the biological aerosol sampler can be scientifically, systematically and quantitatively evaluated and calibrated.

The utility model relates to a normal temperature liquid loss in weight scale of automatic batching. Including base, the support of setting in base top, the feeding bucket for feeding, the metering bucket for material metering, the weighing platform component for material weighing and the metering pump for conveying material, weighing platform component installs on the base, metering bucket installs on weighing platform component, feeding bucket installs in the support top end, feeding bucket discharge pipe and metering bucket feed inlet pass through pneumatic ball valve, flange connector and soft connecting piece connection in proper order between, metering pump installs on the support, metering pump top end junction in proper order has three -way pipe, damper and oil pressure gauge. The pump body of loss in weight scale in prior art scheme when working, the pulsation can be conducted to the weighing platform through the support, leads to dynamic measurement accuracy to drop, and the liquid level detection accuracy is low, and the feeding amount control is rough, can not satisfy the technical problem of high -precision proportioning requirement.

The application discloses a rolling mill thickness control system based on an augmented structure and a control method, equipment and medium thereof, and the system comprises a position sensor, a thickness sensor and a hydraulic sensor, and an augmented structure joint estimator and a thickness controller are further included.The position sensor is used to collect rolling mill oil cylinder piston displacement measurement values; the thickness sensor is used to collect rolling piece outlet thickness measurement values; the hydraulic sensor is used to collect load pressure measurement values; the augmented structure joint estimator is used to estimate the state of the rolling mill thickness control system based on the rolling mill oil cylinder piston displacement measurement values, the rolling piece outlet thickness measurement values and the load pressure measurement values; and the thickness controller is used to calculate the current applied to a servo amplifier as a control signal of the servo amplifier based on the estimated state of the rolling mill thickness control system; and the servo amplifier is used to control the rolling piece outlet thickness.The application can reduce downtime and maintenance costs, isolate the influence of sensor failure on the system, improve the intelligent level of the system, and meet the complex control requirements of high reliability and high efficiency.

The utility model relates to an interference type pressure sensing system based on a multimode optical fiber network, which belongs to the technical field of optical sensing and solves the problems of high manufacturing cost and complex structure of the existing optical fiber pressure sensing technology. When a slight pressure signal is transmitted to the multi-mode optical fiber network through the upper cover plate or the lower cover plate, the multi-mode optical fiber network deforms, the deformation causes mode interference change in the multi-mode optical fiber and changes an optical transmission mode, an output optical signal is transmitted to the photoelectric detector through the second single-mode optical fiber, the optical signal is converted into an electric signal, and the electric signal is transmitted to the photoelectric detector through the second single-mode optical fiber. By acquiring and processing the output electric signals, slight pressure change on the whole cover plate surface can be obtained, along with the increase of the number of the grids, the higher the sensitivity of the multimode optical fiber network is, the better the pressure sensing effect is, and the multimode optical fiber network can be used for monitoring slight pressure signals.

The utility model discloses a kind of lithium battery round tab, belong to battery tab technical field.The utility model's round tab is externally provided with protective layer, the top of battery body is provided with connecting shell, the outside of battery body is connected with protective shell by shaft pin, it is clamped connection between connecting shell and protective shell, the aluminum shell body structure of protective layer, can play mechanical protection effect to round tab, prevent it from being damaged by extrusion or collision by external force, can also effectively insulate the influence of external environment to round tab, avoid its oxidation or corrosion, to prolong the service life of battery, the contact area of the design of grid area welding spot protective shell whole is convex character structure, increase the coverage area of protective shell, can better protect round tab, reduce the direct impact of external object, connecting shell and protective shell are fixed by the clamping structure of insertion post and insertion hole, fixed and release protective shell can be easily carried out through hole ramp and into hole ramp, convenient and fast operation.

The utility model relates to the technical field of water treatment dosing equipment, in particular to a PAM (polyacrylamide) integrated dosing device which comprises a dosing device body, the dosing device body comprises a box body, a storage hopper assembly is arranged on the box body, a screw propulsion assembly is arranged below the storage hopper assembly, and the screw propulsion assembly is arranged below the storage hopper assembly. A spiral propelling assembly is arranged in the box body, the spiral propelling assembly is connected with a rotational flow premixer, a plurality of groups of stirring assemblies are arranged in the box body, a control box is further arranged on one side of the box body, and a water inlet pipeline is arranged at the top of the box body in a matched mode. The links of storage, conveying, mixing and the like of the PAM agent can be effectively improved, the overall performance of the agent adding device is improved, and the requirements of different industries and water treatment fields for PAM agent adding are met.

The utility model provides a die insert heat preservation device, and belongs to the technical field of insert preparation. Comprising a box body, an inner container, a first heat preservation layer, a bottom layer, supports, supporting rods and a box cover. The heat preservation and cooling device is used for conducting heat preservation and cooling on the insert subjected to repair welding, and the box body, the inner container, the first heat preservation layer arranged between the box body and the inner container and the box cover are arranged, so that heat preservation is effectively conducted on the insert subjected to repair welding, slow cooling is achieved, and the influence of the environment on the insert subjected to repair welding is isolated; meanwhile, by arranging the bottom layer, the bearing capacity of the box body is improved, so that a plurality of mold inserts can be stored at the same time, and the effective utilization rate of the space is improved; a supporting rod is arranged, so that the box cover is prevented from deforming due to the gravity of the box cover when the box cover is in an open state, and the sealing performance between the box cover and the box body is prevented from being affected; and compared with an existing plug-in heat preservation furnace, the plug-in heat preservation furnace has higher practicability and the same quality benefit, and meanwhile energy consumption is reduced.

The utility model relates to the technical field of plastic track production, disclose a kind of powder supply device for plastic track material production, including storage bucket, the bottom end of the storage bucket is fixedly connected with feed pipe, the bottom end of the feed pipe is equipped with discharging mechanism, the top of the storage bucket is equipped with sealing ring, the top of the sealing ring is provided with top cover, the outside of the storage bucket is equipped with multiple sealing mechanisms, the discharging mechanism includes fixed block one, the top of the fixed block one is fixedly connected at the bottom end of the feed pipe, the inside fixed connection of the fixed block one has motor. Motor drives recessed groove rod movement in the utility model, left slide is made by connecting rod, storage bucket is moved to discharge pipe, round cover opens discharging, when motor reverses, each component resets, storage bucket returns to original position and receives material, can realize the quantitative discharging of device, avoid artificial proportioning error, guarantee the stable core performance of track material.

This invention discloses a U-shaped three-sided partition air curtain device installed in a range hood, including a blower installed inside the range hood, multiple evenly distributed air blowing pipes, a U-shaped air curtain pipe, and U-shaped air curtain nozzles arranged on the air curtain panel. The blower connects to the U-shaped air curtain pipe and the U-shaped air curtain nozzles on the air curtain panel installed under the hood through the air blowing pipes to form a U-shaped three-sided partition air curtain device. When the blower is activated, compressed air is sprayed downwards through the U-shaped air curtain pipe from the U-shaped air curtain nozzles to form a U-shaped three-sided vertical partition air curtain. Compared with the prior art, the U-shaped three-sided partition air curtain device installed in the range hood of this invention forms a U-shaped three-sided vertical partition air curtain by spraying air downwards from under the hood. It forms a closed air curtain chamber with the wall, which can confine the oil fumes generated during cooking within this air curtain chamber, preventing the oil fumes from escaping and preventing the disturbance of the outside air from affecting the oil fume extraction effect, reducing the passive inhalation of oil fumes by users, and avoiding adverse health effects.