32results about How to "Improve practical safety" patented technology

The invention discloses an oxygen-rich reduction furnace for processing a low-grade multi-metal material. The oxygen-rich reduction furnace comprises a furnace crucible, a copper water jacket furnace wall and a copper water jacket furnace top which are sequentially arranged from bottom to top, wherein a steel structure frame body is arranged on the periphery, and the furnace crucible is positioned on a bottom surface framework of the steel structure frame body; the copper water jacket furnace wall comprises a plurality of layers of copper water jackets, an air nozzle and a hole punching and slag discharge device are arranged at the bottom of the copper water jacket at the bottom layer, and a fixed frame for connecting with the steel structure frame body is arranged on the outer wall of the copper water jacket furnace wall; and the copper water jacket furnace top is hung at the upper end of the steel structure frame body, and a solid feed port, a liquid feed port and a flue port for smoke exhaust, which are communicated with the copper water jacket furnace top, are arranged at the upper end of the copper water jacket furnace top. The heating surfaces of all the copper water jackets are embedded with dovetail groove-shaped bricks, so that the service life of the copper water jackets is greatly prolonged, and the structure of the hole punching and slag discharge device can overcome the defects that a water jacket at a slag notch is prone to water leakage, and shutdown is required for replacing the water jacket. The oxygen-rich reduction furnace disclosed by the invention adopts an oxygen-rich melting pool for melting and has the characteristics of small smoke gas amount, low heat which is taken away by smoke gas, high temperature of the melting pool and easiness in volatilization of lead and zinc.

The invention discloses an initial rainwater runoff control device, which comprises a controller, a runoff collection pipe and a rainwater collection hopper, wherein, an electromagnetic valve connected with the controller is arranged in the runoff collection pipe; the lower end of the rainwater collection hopper is provided with a first rainwater monitoring hopper and a second rainwater monitoring hopper; a first floating ball, a first water outlet, a first overflow port and a first water level probe are arranged in the first rainwater monitoring hopper; a second floating ball, a second wateroutlet, a second overflow port and a second water level probe are arranged in the second rainwater monitoring hopper; and the first water level probe and the second water level probe are respectivelyconnected with the controller. Compared with the prior art, the device adopts a microcomputer control technology and has a control principle different from other devices; the microcomputer control has good stability, high accuracy, convenient operation, practicability and safety, and has greatly improved environment adaptability compared with the prior device; in addition, a microcomputer has lower power, so the device is more environment-friendly and energy-saving.

The invention discloses a lung fixing device used under thoracoscope. The lung fixing device comprises an outer tube and a sleeve tube, wherein an inner tube is arranged in the outer tube; first fixing balls are respectively arranged on one side away from the center line of the inner tube, of a fixing clip; each first fixing ball is connected with a corresponding second fixing ball through a corresponding spring; fixing pieces are respectively fixed to one side away from the axis of the inner tube, of the fixing clip; each fixing frame is arranged on the left side of a corresponding fixing shaft seat; each connecting rod is fixed to the front side of the corresponding fixing frame; each fixing shaft seat is connected with the right end of a corresponding first connecting rope; the left endof each first connecting rope sequentially penetrates through a place between every two connecting rods; a fixed seat is arranged on the front side of the right end of the inner tube, and is arrangedon the left sides of the fixed seats; and the right end of the sleeve tube is connected with the left end of the fixed seat. According to the lung fixing device used under thoracoscope disclosed by the invention, lung parts on two sides of the inner tube are fixed through the fixing clamp, so that the situation that the thoracoscope lens in the inner tube is blocked by lung parts is avoided, andthe using convenience is improved.

The invention relates to the technical field of wicker artware development, and discloses a long-acting flame-retardant treatment method suitable for wicker artware. According to the method, a prepared flame-retardant material is allowed to infiltrate into a wicker material by adopting a normal-pressure heating impregnation treatment method; in the treatment process, adverse effects on the dimensional stability of the wicker material are avoided; the flame-retardant material has hydrophobicity, can shield the influence of moisture, can stably exist in the wicker material even under the conditions of high humidity and strong light irradiation, does not fade away flame-retardant effect, and is high in loss resistance and remarkable in flame-retardant effect; and the flame-retardant materialis economical and environment-friendly, is very stable in physical and chemical properties, large in specific heat capacity and capable of insulating heat and oxygen, can generate a free radical inhibitor when being heated, interrupts conditions for forming a combustion reaction, and expands the application range of wicker artware in other fields.

The invention discloses a method for improving fruit tree cultivating soil. The method comprises the following steps: step I, performing integral ploughing on to-be-improved soil with the ploughing depth of 100-120cm, and breaking soil blocks, and maintaining sizes uniform; step II, adding improving fertilizer to the ploughed soil, and performing ploughing again to mix the improving fertilizer evenly, wherein the adding amount is 2000kg / mu, and standing is performed for 15 days; step III, ploughing the soil after standing in step II again, and opening furrows, wherein the furrowing depth is 15-25cm, and the line spacing is kept at 1.5-2m; and step IV, conducting a water test on the furrows, checking the drainage fluency of a water ditch of the furrow and the firmness of planting ridges, and performing natural air drying on the planting soil after checking. The fruit tree cultivating soil improved by the method of the invention adapts to planting of multiple types of fruit trees, and isgreatly helpful for improving the quality of fruits and the yield of the fruits.

The invention discloses a library multifunctional desk which comprises a desk board and desk legs, and further comprises water cup placement grooves, a drawer, antiskid cushions, an inner groove, a network cable socket and a power socket. The desk legs are arranged on the lower side of the two ends of the desk board. The desk legs are each of a U-shaped structure. The water cup placement grooves are formed in the four corners of the upper surface of the desk board and are each of a circular structure. The power socket and the network cable socket are formed in the groove in the side wall of the desk board without occupying the area of the desk board, the use area is further increased for people, the power socket and the network cable socket are placed in the groove, the situation that people passing by touch the power socket and the network cable socket is reduced as much as possible, and practicability and safety are enhanced; by means of the antiskid cushions arranged on the lower sides of the desk legs, the antiskid effect is further enhanced; by means of hooks on the side wall of the desk board, clothes, school bags and the like can be hung, and use is simple and convenient.

The invention discloses a sputum collection method for detecting the 16SrRNA gene sequence of respiratory tract bacteria. The sputum collection method comprises the following steps: step one, measuring the forced vital capacity FEV1 in the first second of the foundation; step two, absorbing 200 mu. G of salbutamol aerosol; step three, blowing the nose and rinsing the mouth with 0.9% of sterilization normal saline water; step four, carrying out atomization induction with 3% of sterilization saline water for 10 min, stopping atomization, rinsing the mouth for three times with 0.9% of sterilization normal saline water, and holding the breath to cough up deep sputum, so that the sputum is colleted in a sterile culture dish; step five, carrying out atomization with 4% and 5% sterilization saline water respectively to repeat the above steps, and collecting the deep sputum; step six, separating sputum bolt collected in the step four and the step five and preserving the sputum bolt at a low temperature. The sputum collection method for detecting the 16SrRNA gene sequence of respiratory tract bacteria provided by the invention is low in possibility to contaminate an oral cavity, and is simple and convenient.

The invention provides jacking equipment for a rear suspension assembly. The jacking equipment for the rear suspension assembly comprises a suspended balance power-assisting mechanism and an operatingmechanism. The operating mechanism comprises a rack, a hook, a power mechanism, a screw rod, a sliding block and a jacking structure. The hook is located at the top of the rack, the bottom of the rack is connected to the balance power-assisting mechanism, the screw rod is in transmission connection with the power mechanism through a universal joint, the sliding block is connected to the screw rodthrough internal threads, the sliding block is hinged to the jacking structure, the jacking structure is hinged to the rack, and the sliding block moves on the screw rod to drive the jacking structure to ascend and descend. According to the jacking equipment, the operation mechanism is ingenious in structure, the operator can operate the equipment more flexibly, the operation man-machine performance is high, and the fatigue strength of the operating personnel can be lowered.

The invention relates to the technical field of wicker handicraft development, and discloses a long-term flame-retardant treatment method suitable for wicker handicrafts. The prepared flame-retardant material is infiltrated into the willow material by using a treatment method of heating and impregnating under normal pressure. It will have adverse effects on the dimensional stability of willow materials. The flame retardant material is hydrophobic and can shield the influence of moisture. Even under high humidity and strong light, it can exist stably in willow materials without affecting the resistance The flame retardant effect produces fading effect, strong loss resistance, and remarkable flame retardant effect; the flame retardant material is economical and environmentally friendly, and is very stable in physical and chemical properties, with large specific heat capacity, heat insulation and oxygen insulation, and can produce free radical inhibitors when heated , the conditions for interrupting the formation of combustion reactions expand the scope of application of willow crafts in other fields.

The invention discloses an automatic control device for a front valve of a gas stove, which is arranged between each ignition switch of the gas stove and the front valve of the stove, and includes a controller, and each ignition switch is respectively connected to the signal input of the controller end, the output end of the controller is connected with a gas valve control manipulator, and the gas valve control manipulator is fixedly installed on the gas pipeline and connected to the control handle of the front-of-stove valve; Next, this device is directly installed between the front valve of the stove and the ignition switch, and the installation process is very simple, and this device uses the gas valve control manipulator to connect with the control handle of the front valve of the stove, so as to separate the electrical components from the gas pipeline. It eliminates the hidden danger of gas explosion and reduces the possibility of metal pipes being electrified, which greatly improves the practical safety of the whole device. It has reliable operation, less faults, high safety and long service life.

The invention relates to a push-pull connecting piece, which comprises a positioning piece and a pressing block rotating piece; a sliding groove for sliding a dodge door is formed on the pressing piece rotating piece; Correspondingly, the positioning piece is provided with a limit slot matching the limit block; the bottom of the movable door presses the pressing block rotating part from outside to inside, and the limit on the pressing block rotating part The block is clamped in the limiting groove, and the movable door moves along the sliding groove; the movable door pushes the rotating part of the pressing block from the inside to the outside, and the limiting block on the rotating part of the pressing block is separated from the limiting groove, and the movable door and the rotating part of the pressing block separate.

The invention relates to the technical field of buildings, and discloses building construction orientation fixed point auxiliary measuring equipment, which comprises an instrument mounting top plate, support fixing blocks are uniformly and fixedly mounted on the outer surface of the instrument mounting top plate in the circumferential direction, support connecting rods are fixedly mounted at the left and right ends of the bottom surface of each support fixing block, and the bottom ends of the two supporting connecting rods are fixedly sleeved with supporting driving shafts. According to the building construction orientation fixed point auxiliary measuring equipment, through the arrangement of a protective safety cover and the mutual cooperation of a fixed telescopic rod, a telescopic reset spring and an active telescopic rod, when the auxiliary measuring equipment is not installed, the bottom end of a secondary supporting telescopic rod cannot be exposed outside, the condition that the conical bottom end of the secondary supporting telescopic rod can injure an operator is prevented, and the use safety of the auxiliary measuring equipment is ensured, so that the practical safety of the auxiliary measuring equipment is improved.

The invention discloses a gout crystal removal device. The device comprises a first housing and an LED lamp head, the upper end of the surface of the first housing is provided with a groove, the bottom of a support rod is connected to a fixing member, the top of an impurity storage tank is connected to the bottom of a sealing plug, the top of the sealing plug is connected to the top of the first housing, the top side of the sealing plug is provided with a second sealing rubber ring, the inner side of the bottom of the sealing plug is provided with a filter element, the top of the first housingis connected to a second housing, a storage battery is fixedly in the inner part of the second housing, the bottom of the second housing is provided with a filter screen, the surface of the second housing is provided with air outlets, the LED lamp head is arranged at the left side of a sucking tube, and the LED lamp head is fixed at the left side of the bottom of the first housing. The gout crystal removal device can guarantee that it is not prone to damaging the cartilages of the joint parts when removing the gout crystals by scraping through a damping shaft convenient for adjusting the angle of the fixing member, a soft brush and friction balls made from silica gel materials, thus improving the practical safety.

The invention relates to the technical field of buildings, and discloses building construction orientation fixed point auxiliary measuring equipment, which comprises an instrument mounting top plate, support fixing blocks are uniformly and fixedly mounted on the outer surface of the instrument mounting top plate in the circumferential direction, support connecting rods are fixedly mounted at the left and right ends of the bottom surface of each support fixing block, and the bottom ends of the two supporting connecting rods are fixedly sleeved with supporting driving shafts. According to the building construction orientation fixed point auxiliary measuring equipment, through the arrangement of a protective safety cover and the mutual cooperation of a fixed telescopic rod, a telescopic reset spring and an active telescopic rod, when the auxiliary measuring equipment is not installed, the bottom end of a secondary supporting telescopic rod cannot be exposed outside, the condition that the conical bottom end of the secondary supporting telescopic rod can injure an operator is prevented, and the use safety of the auxiliary measuring equipment is ensured, so that the practical safety of the auxiliary measuring equipment is improved.

The invention relates to a power transformer installation construction method. The power transformer installation construction method adopts a power transformer installation structure, the power transformer installation structure comprises a supporting device, a mounting strip, a traction fixing mechanism, a positioning and fixing mechanism and adjusting bolts, the supporting device comprises a supporting plate, a supporting pin shaft, a supporting embracing ring, supporting bolts and a limiting mechanism, and the positioning and fixing mechanism comprises a positioning and fixing plate, a positioning embracing ring, a positioning pin shaft and positioning bolts. The power transformer installation construction method adopting the power transformer installation structure comprises the following steps: S1, installation and positioning; S2, fixation of a transformer; S3, fixation of the top; and S4, traction fixing. The problems that an existing power transformer is poor in transformer fixing effect and cannot adapt to some extreme weather conditions, the transformer possibly shakes or even falls off, and the public is threatened can be solved.

The invention relates to a rotating mounting locking mechanism, which includes a connecting mechanism and a mounting mechanism formed by aluminum profiles; a mounting groove is formed on the mounting mechanism; Rotate the position-limiting protrusion for position-limiting fit, and the end of the position-limiting protrusion is a circular arc structure; correspondingly, the connecting mechanism is formed with a circular-arc structure that matches the position-limiting assembly protrusion The connecting groove of the connecting mechanism is rotationally connected with the limit protrusion on the mounting mechanism, so that the connecting mechanism is transferred into the mounting groove, and the fast locking of the connecting mechanism and the mounting mechanism is realized; the present invention has a simple structure and is easy to use Convenience, the connecting mechanism is rotatably connected to the installation mechanism, which realizes fast transfer and locking between adjacent profiles; the aluminum profile is quickly disassembled, has good performance, and is safe and reliable.