13results about How to "Safe operability" patented technology

The invention discloses a carbon-coated silicon-based composite material and a preparation method thereof.The preparation method comprises the steps that firstly, a silicon monoxide material and a lithium source liquid phase are mixed in the mode of solvent evaporation after liquid phase mixing, and a layer of lithium silicate precursor is evenly distributed on the surfaces of silicon monoxide particles through high-temperature sintering; and mixing the carbon-coated silicon-based composite material with an organic resin liquid phase, and carrying out high-temperature carbonization to obtain the carbon-coated silicon-based composite material. The invention also discloses an application of the carbon-coated silicon-based composite material as a lithium ion battery negative electrode material. The carbon-coated silicon-based composite material prepared by the method disclosed by the invention has relatively high first coulombic efficiency and excellent cycle performance and rate capability, and the method disclosed by the invention is simple in preparation process and further has the characteristic of industrialization.

The utility model discloses an operation fixing tool for a small-sized simple high-pressure reaction kettle, which comprises an operation table, two restraint rod groups are fixedly arranged in the middle of the operation table, the distance between the two restraint rod groups is larger than the diameter of a kettle body of the reaction kettle, and each restraint rod group comprises two restraint rods. The distance between the two restraint rods is equal to the diameter of a control handle of the reaction kettle; a kettle body fixing groove is formed between the two restraining rod sets and is defined by two fixing baffles and two clamping baffles which are oppositely arranged, and a jacking device is arranged on the back of each clamping baffle and drives the clamping baffle to do linear motion. The fixing device is used for fixing the small-sized high-pressure reaction kettle, as the control handle at the upper part and the kettle body at the lower part of the fixing device are firmly fixed, an operator can tighten or unscrew bolts of the high-pressure reaction kettle more conveniently through the torque wrench, and can more safely operate the steps of pressurization or pressure relief and the like, the steps can be easily completed by one person, and the labor cost is saved.

This utility model discloses a down-filling and down-dusting device for down jacket processing, relating to the field of down jacket production and processing technology. It includes a processing box and two beating plates, and further comprises an adjustment unit and a feeding unit disposed within the processing box. The adjustment unit includes a servo motor, a lead screw, a moving block, a rectangular frame plate, a first sliding rod, a first sliding block, and a supporting spring. A strip-shaped mounting groove is formed at the center of the top surface inside the processing box, and the servo motor is installed in the strip-shaped mounting groove. The lead screw is installed at the output end of the servo motor. The feeding unit includes a second sliding rod, a second sliding block, a support frame, a pull plate, and casters. The second sliding rod is fixedly disposed at the center of the bottom surface inside the processing box, and the second sliding block is movably disposed on the second sliding rod. In this utility model, down jackets on the support frame can be safely picked up and fed, and the device's down jacket picking and feeding operations are simple and safe, eliminating the need for repeated starting and stopping of the drive equipment.

The present invention discloses a high- and low-voltage switch cabinet with good safety performance, which relates to the technical field of switch cabinets, including a cabinet body, both sides of which are connected with exhaust plates, and the inner cavity of the cabinet body is provided with multiple groups of pads, and the ends of the pads are provided with adjustment components, and the electrical components are limited by the adjustment components; the high- and low-voltage switch cabinet with good safety performance, when placing the electrical components inside the sleeve, by adjusting the position of the guide rod, in conjunction with the slide groove opened on one side thereof, synchronously drives the movable rod slidably installed inside the slide groove to move, and because the upper end of the movable rod is connected to the moving block, when the movable rod moves, the movable block is synchronously driven to move and move closer to the middle position of the sleeve, so as to clamp the outer surface of the electrical component installation part, and ensure the stability of the overall electrical component. At the same time, sufficient space is reserved for daily maintenance and overhaul of the equipment, so that technicians can safely and conveniently operate and repair.

The utility model provides a mine tunnel method supporting assembly. The mine tunnel method supporting assembly comprises a plurality of connector boxes, a permanent double-layer primary supporting steel frame and a temporary primary supporting steel frame. The permanent double-layer preliminary bracing steel frame comprises an outer side steel frame assembly and an inner side steel frame assembly, the outer side steel frame assembly comprises a plurality of outer side steel frame units, and the inner side steel frame assembly comprises a plurality of inner side steel frame units; the adjacent ends of any two adjacent outer side steel frame units are fixedly connected, any two adjacent inner side steel frame units are connected through a connector box, and the inner side steel frame units are connected with the temporary steel frame units through connector boxes. By introducing the connector box and optimizing the connecting mode, the strength of connecting points of the supporting assembly is effectively enhanced, the strength and rigidity of the connecting points are improved, and the stability and bearing capacity of the whole supporting system are improved.

The utility model discloses an automatic blood sampling and cupping device for blood sampling in traditional Chinese medicine, which belongs to the technical field of clinical instruments in traditional Chinese medicine, and comprises a cupping device, an adjusting component, a sliding plate, a locking bolt, a movable component, a blood sampling needle, a measuring component and a limiting rod, the cupping device comprises a cupping device main body, a sliding groove and a through groove, and the sliding groove and the through groove are both arranged in the cupping device main body; according to the utility model, an operator can adjust the position of the blood-letting puncture needle through the movement of the sliding plate in the sliding chute, and meanwhile, the forward-rotating adjusting cylinder drives the blood-letting puncture needle to stably move downwards along the axial direction of the graduated tube, so that the blood-letting puncture needle is accurately inserted into the body of a patient, and the operation is simple; the indicating rod sliding in the graduated tube can display the movement depth of the blood vessel puncture needle in real time, so that an operator can accurately control the depth of the blood vessel puncture needle punctured into the blood vessel, the situation that the blood vessel puncture needle punctures the blood vessel too deep is not prone to occurring, and the operator can use the device to safely conduct blood vessel puncture and cupping operation on a patient.

The utility model discloses a magnetic suspension swivel beam weighing counterweight system, which comprises a magnetic suspension support unit, a monitoring mechanism and a control mechanism, and a controller of the control mechanism can control the direction and the magnitude of current introduced into a magnetic suspension support assembly so as to control the direction and the magnitude of vertical force between a rotor coil and a long stator winding. According to the utility model, the magnetic suspension technology is applied to the weighing and counterweight of the swivel beam for the first time, the magnetic suspension support assembly is arranged between the upper turntable and the lower turntable of the bridge swivel structure, electromagnetic force is generated through the input current, and vertical support force or pull-down force is provided for the swivel beam, so that the weighing and counterweight of the swivel beam can be realized; the vertical force is generated in a non-contact mode to weigh and balance the weight of the swivel beam, operation is more convenient, the device can be more suitable for complex working conditions, the weighing result precision is high, weighing and weight balancing operation is more stable, efficient and safer, the engineering period can be effectively shortened in practical application, and potential safety hazards are reduced to the maximum extent.

The invention belongs to the technical field of steel structure bridge construction, and particularly discloses an ultra-wide split type steel box girder cantilever construction circumferential weld operation trolley which comprises a lifting system, a fixing frame, a split type steel box girder and a circumferential weld operation trolley body arranged on the side edge of the split type steel box girder. The circumferential weld operation trolley body comprises a walking system, an upper transverse supporting truss, a vertical connecting truss, a lower transverse support truss and an operation platform. The walking system comprises a walking chassis, an inner side connecting frame, an outer side connecting frame, a connecting cross rod and a balance weight. The upper transverse supporting truss is installed above the outer side connecting frame, and the vertical connecting truss is connected with the upper transverse supporting truss and the lower supporting truss. The working platform comprises standard knots, end reinforcing knots, middle reinforcing knots, diagonal draw bars, a lifting frame and a stabilizing frame. The lifting system comprises a winch, a steel wire rope and a shackle and can conduct lifting operation of the operation platform.

The invention provides a crystal pulling furnace and a vacuum pump control system for the crystal pulling furnace. The crystal pulling furnace comprises a main furnace chamber, an auxiliary furnace chamber, a crystal pulling head, a crucible and two vacuum devices, and the vacuum device is respectively communicated with the main furnace chamber and the auxiliary furnace chamber through a three-way electric control valve. When the control module receives a pre-working instruction sent by a controller of the crystal pulling furnace through the communication module, the control module controls the vacuum pump set to act to vacuumize the vacuum chamber until the vacuum detection module detects that the air pressure in the vacuum chamber meets a pre-configured first air pressure condition; and when a working instruction sent by the controller is received, the three-way electric control valve is controlled to be communicated, and the vacuum pump set is controlled to be started until the vacuum detection module detects that the air pressure in the vacuum chamber meets a pre-configured second air pressure condition. According to the invention, the two vacuum devices are configured to ensure the normal work of the crystal pulling furnace when any one of the devices is damaged, so that the vacuum environment in the crystal pulling furnace is ensured.

The utility model discloses an aluminum honeycomb core hot press which comprises a base. The hot pressing plate piece is arranged over the base, the hot pressing plate piece comprises a pressing plate, an electric heater and a heat insulation plate, the electric heater is embedded in the pressing plate, the heat insulation plate covers the outer end of the pressing plate, and a driving assembly used for driving the hot pressing plate piece to press downwards is arranged at the upper end of the heat insulation plate; and the blowing table is positioned behind the hot pressing plate piece and is mounted at the upper end of the base. The heat insulation plate is arranged at the outer end of the pressing plate with the electric heater, the heated pressing plate is subjected to heat insulation through the heat insulation plate, a worker is prevented from being in contact with the heated pressing plate accidentally to be scalded, and use is safer; in addition, a blowing part is designed on the base, air can be exhausted to a blowing opening through an air outlet piece before each time of pressurization, impurities on the base are blown away through the air, and therefore the follow-up hot pressing quality of the aluminum honeycomb core is guaranteed.

The utility model relates to the technical field of heat exchangers, and discloses a novel graphite heat exchanger which comprises a bottom plate, an installation ring is fixedly connected to the upper surface of the bottom plate, a second threaded rod is rotationally connected to the inner wall of the installation ring, a first handle is fixedly connected to one end of the second threaded rod, and a second bearing is rotationally connected to one end of the second threaded rod. A fixing plate is fixedly connected to the bottom of the second bearing, springs are fixedly connected to the inner surface of the mounting ring, and a heat exchanger body is placed on the upper surface of the bottom plate. By arranging the heat exchanger main body, a user can place the heat exchanger main body on the upper surface of the bottom plate through external hoisting equipment, and after placement is completed, a handle I can be rotated, so that a threaded rod II connected with the back surface of the handle I rotates on the inner wall of a mounting ring, and meanwhile, the rear part of the threaded rod II rotates on the inner wall of a bearing II; and a spring on the inner wall of the mounting ring can be used for buffering and damping the fixing plate.

This utility model relates to the field of liquid level gauge technology and discloses an explosion-proof magnetic liquid level gauge, including a measuring plate, a measuring tube disposed on the rear side of the measuring plate, a flip-up indicator disposed on the front side of the measuring plate, a warning assembly connecting the top of the measuring tube to the warning indicator, a connecting rope fixedly connected to the inner wall of the measuring tube, a magnetic component slidably connected to the outer wall of the connecting rope, a float fixedly connected to the bottom of the magnetic component, a corrugated compensator fixedly connected to the top and bottom of the measuring tube, a first connecting pipe disposed at the end of the corrugated compensator, a third connecting pipe disposed at the end of the first connecting pipe, and a piston assembly connecting the inner wall of the third connecting pipe to a second connecting pipe. In this utility model, the magnetic liquid level gauge integrates a pressure safety protection function. When the pressure inside the tank exceeds the limit, the top warning indicator immediately alarms, and the operator can quickly drive the piston assembly to cut off the connecting pipe, preventing leakage and explosion risks while supporting pressurized disassembly and maintenance.

The utility model provides a prefabricated T beam transverse anti-overturning support structure relates to highway engineering technical field, include: T beam main part, the both sides of T beam main part are equipped with cross diaphragm, and two cross diaphragms are symmetrically distributed, the T beam main part is stacked in two layers, and the both sides of lower layer T beam main part are equipped with support inclined pole between ground, the bottom of support inclined pole is equipped with support embedded part, because being equipped with support embedded part and section steel base, support embedded part is fixedly connected with ground, and section steel base sets up between two layers T beam main body, and can be stabilized support to two layers T beam main body through with support inclined pole intercoordination, its installation and disassembly operation are simple, and support structure is light and clever, and can be repeatedly used, and the convenient disassembly and transportation, when the beam field prefabricated T beam is stored, often in order to save cost or because of site restriction, adopt square wood or steel frame support, its support structure installation and disassembly are complicated, and the problem of inconvenient turnover is solved.