51results about How to "Avoid job risk" patented technology

The invention discloses a square pile rotary drilling device for achieving square pore-forming and a rotary drilling method thereof. The device comprises a first rotating part and a plurality of second rotating parts which rotate along with the first rotating part, wherein rotating shafts of the first rotating part and the second rotating parts are in parallel, the first rotating part drives a main drill to rotate, each second rotating part drives an accessory drill to rotate, and all the accessory drills are located above the main drill; projections of the accessory drills in a rotating planeof the main drill partially coincide with the main drill; the device further comprises a square scraping part located above the accessory drills. The invention aims to provide the square pile rotarydrilling device for achieving square pore-forming and the rotary drilling method thereof to solve the problems that in the prior art, square pores cannot be formed by a rotary drilling machine directly, so that square pile construction is low in efficiency and unsafe; the purpose of forming the square pores directly through the rotary drilling machine to efficiently conduct cast-in-place square pile construction can be achieved.

The invention provides a method for deploying a virtual machine rapidly in a smart cloud OS (operating system). In the method, terminal Linux commands and a mode of homologous snapshots are used for deploying the virtual machine rapidly. The invention has the following technical scheme as follows: on the smart cloud OS, at first, a source virtual machine is created, an operating system is installed in the source virtual machine, application software is deployed in the system, then the source virtual machine is snapshot, multiple copies of a snapshot file are copied, corresponding UUID (universally unique identifier) numbers are separately given to the snapshot files through executing the corresponding commands in distributed storage, the snapshots of the source virtual machine are set as the mirror images of other virtual machines, and thus, the same rapid deployment of the virtual machines is finished through the method of homologous mirror images. By using the method, work content is simplified, work risks are avoided, and the disk space is greatly saved as the homologous files are used.

A power supply management device for electric vehicle and an electric vehicle with the power supply management device. The power supply management device comprises a first management module (101), a second management module (102) and a battery module (103), wherein, the first management module (101) is connected with the second management module (102) for controlling the delay power-on of the second management module (102) when the vehicle key is turned on, to implement the power-on self-test for the vehicle controller of the electric vehicle, and controlling the delay power-off of the second management module (102) when the vehicle key is turned off, to save the vehicle data information when the electric vehicle is power-off. The battery module (103) is connected with the first management module (101) and the second management module (102) respectively for supplying power to the first management module (101) and the second management module (102). The power supply management device improves the reliability and safety of the vehicle controller.

The invention discloses a bidirectional synergy driving material pneumatic conveying system which comprises driving gas source units and a transmission pipeline unit for conveying materials to be conveyed; the driving gas source units provide a blowing or suction gas source driving mode to the inside of the transmission pipeline unit to drive the materials to be conveyed to be pneumatically transmitted; two driving gas source units are respectively arranged at an initial end and a finish end of the transmission pipeline unit; the two driving gas source units are synergically matched to provide different gas source driving modes to the inside of the transmission pipeline unit, so as to reinforce a transmission speed of the materials to be conveyed at a transmission section and/or retard the transmission speed of the materials to be conveyed at a receiving section. The bidirectional synergy driving material pneumatic conveying system has the advantages that driving modes at both ends can be flexibly converted; not only can a very strong driving force be provided at the transmission section of a pipeline, but also a receiving impact force can be buffered at the receiving section of the pipeline.

The invention provides a well completing test pipe column and method for a gas well. The pipe column comprises an oil pipe, a packer arranged on the outer wall of the oil pipe, a leak-proof device arranged at the tail end of the oil pipe and used for preventing well killing fluid in the oil pipe from leaking, and a pressure gauge arranged in an inner cavity of the leak-proof device or an inner cavity of the oil pipe. By using the pipe column, it can be ensured that gas well test and completing can be completed through one time of tripping in, it also can be ensured that the underground pressure gauge can be safely taken out, so that the pipe column can be effectively applied to the completing test of the gas well and is particularly suitable for a high-pressure gas well, the huge operationcost and the operation risk caused by operation on the pipe column are avoided, and the reliability of the pipe column is improved.

The invention discloses a method for 10 kV work for connecting a lead of a branch connecting circuit. A lead insulation fixer is used for fixing the lead and a main wire, and a double-screwing type connecting and leading wire clamp is used for conducting lead lap joint work. The lead insulation fixer is composed of a clamp body, an insulation handle and a hinge pin. The clamp body and the insulation handle which are integrated are symmetrically fixed together through the hinge pin to form a clamp-shaped structure. The double-screwing type connecting and leading wire clamp comprises a fixed hanging piece, a wire screwing mechanism and a lead screwing mechanism, the wire screwing mechanism and the lead screwing mechanism are connected with the fixed hanging piece through screws respectively. Compared with the prior art, the method has the advantages that a novel tool is adopted and the electrified working method is improved, so that labor intensity is lowered, working risks are avoided, and habituation violation work is eradicated; safety is high in practical application; the double-screwing type connecting and leading wire clamp is adopted, operation is convenient and fast, the method is suitable for an insulation glove work method and an insulation rod work method, the tool utilization amount is reduced, and the power supply reliability is improved.

Provided is a construction method and a carrier. A linear sliding rail and a sliding gasket pad part are additionally arranged on the carrier, the existing operation process of supporting unit plates by operators is replaced. The unit plates continuously bear supporting force of the linear sliding rail and the sliding pad part in the transition process that the unit plates become inclined from horizontal and then become vertical again, operation risks due to the fact that the operators are too close to the edge of a hoisting layer are avoided, meanwhile, pendulum motion generated when the operators instantly release the unit plates in the traditional hoisting process is buffered, the hoisting process of the unit plates is stable, and convenience and reliability are achieved.

The invention discloses a drug delivery device for fumigating a granary. The drug delivery device comprises a control bin, a medicament bin and a drug delivery bin below the medicament bin, wherein aresidue receiving bin is arranged below the drug delivery bin, a control module, a power supply module, a wireless communication module and a wireless communication antenna are arranged in the controlbin. The drug delivery device is in communication interconnection with a remote monitoring terminal in a wireless communication manner and can be remotely monitored. The invention further discloses adrug delivery method based on the drug delivery device. According to the drug delivery device, the automatic hydrogen phosphide fumigation can be realized without unattended operation, the concentration of hydrogen phosphide gas in the granary can be monitored in real time, the automatic supplemental drug delivery can be carried out, the drug delivery concentration of the whole fumigation cycle can be guaranteed, the fumigation precision is increased, the personnel security is guaranteed, the manpower and material resources are saved, and the device has good economic and social benefits.

The invention discloses an efficient and safe fast hole formation method adopting rotary excavating machinery for slide-resistant piles. The method comprises the following steps that A, paying off andpositioning of slide-resistant pile holes or site lofting is carried out; B, hole digging by a rotary excavating pile machine is carried out according to pile core serial number and position or the holes are formed adopting rotary excavating machinery; C, excess earthwork on a side wall is cleaned and sediment at the bottom of the pile is removed; D, a reinforcement cage is lowered; and E, the slide-resistant piles are formed through pouring concrete. According to the efficient and safe fast hole formation method adopting rotary excavating machinery for the slide-resistant piles, the problemsthat the efficiency of manual hole digging pile breaking into a rock is low, no blasting excavation is allowed under complex environment and the hole formation construction is very difficult are solved, on the one hand, the fact that hole formation adopting machinery can be carried out without using a pile casing and retaining wall is realized, so that the construction cost is greatly reduced; and on the other hand, the slide-resistant pile construction is completed quickly in the limited time when the self-stabilizing capacity of a hole wall after hole formation adopting machinery supports until the concrete pouring forming, and the construction safety and quality are ensured.

The invention relates to a method and device for 10 kV electrified work for breaking a lead on a falling type fuse. A lead insulation fixer is adopted for fixing the lead and a main wire, and the method and device are suitable for the work manner that a lead connecting clamp is adopted in lead lap joint. The lead insulation fixer is composed of a clamp body, an insulation handle and a hinge pin. The clamp body and the insulation handle which are of the integral type are symmetrically fixed together through the hinge pin, and a clamp-shaped structure is formed. A wire fixing groove and a lead fixing groove are formed in the clamp body. Compared with the prior art, the method and device for the 10 kV electrified work have the advantages that a novel tool is adopted and the electrified working method is improved, so that labor intensity is lowered, working risks are avoided, and habituation violation work is eradicated; in practical application, the safety accident rate of 10 kV electrified work for breaking the lead on the falling type fuse more than 200 times all the year round is zero, and safety is high; operation is convenient, working efficiency is improved, the method and device for the 10 kV electrified work are suitable for an insulation glove work method and an insulation rod work method, the tool utilization amount is reduced, and the power supply reliability is improved.

The invention discloses an automatic material loading and unloading mechanical arm and aims to provide the mechanical arm capable of clamping workpieces rapidly. The automatic material loading and unloading mechanical arm is characterized by comprising a base, the base is provided with a material loading mechanism, one side of the material loading mechanism is provided with a first supporting plate fixed to the base, the first supporting plate is provided with a first driving motor fixedly connected, an output shaft of the first driving motor is provided with a rolling-ball screw rod, the other end of the rolling-ball screw rod is fixedly connected with a second supporting plate, two sides of the screw rod are provided with supporting racks fixed with the first supporting plate and the second supporting plate, the rolling-ball screw rod is provided with a sliding block, two sides of the sliding block are provided with an extension plate fixedly connected, the supporting racks run through the extension plate, the side, close to the material loading mechanism, of the sliding block is provided with a fixed plate fixedly connected, the fixed plate is provided with a grabbing mechanism,and one side of the grabbing mechanism is provided with a driving mechanism capable of moving the grabbing mechanism front and back.

The invention discloses a power transmission line cable trench operation safety management and control method and system based on edge computing. The method comprises the steps of obtaining data collected by an edge intelligent terminal and determining that an operator and an underground environment have underground safety operation conditions; sending an underground operation process monitoring data acquisition instruction to the edge intelligent terminal, receiving underground operation process monitoring data in real time, and performing underground operation risk prediction; when it is determined that there is a risk, analyzing contribution degrees of various types of monitoring data to a risk prediction value; and obtaining the priority corresponding to the monitoring data type with the contribution degree larger than a second preset threshold, and if there is monitoring data of the first priority type, sending first safety warning information to an operator, the first safety warning information being used for indicating the operator to stop underground operation. Omnibearing cable trench operation safety management and control are realized, the efficiency of cable trench operation safety management and control is improved, and cable trench operation risks are avoided to the greatest extent.

The invention discloses a mobile direct-current deicing horizontal access device. The mobile direct-current deicing horizontal access device comprises an electric pole fixedly connected onto the ground, a post insulator I, an isolated insulator, a direct-current bus, a post insulator II, an alternating-current bus and fixed contacts and moving contacts which are matched with each other, wherein the direct-current bus and the alternating-current bus are vertically fixedly connected onto the electric pole through the horizontal post insulator I and the horizontal post insulator II respectively;the direct-current bus and the alternating-current bus are connected through the isolated insulator; the fixed contacts are mounted on the direct-current bus and the alternating-current bus respectively; the moving contacts corresponding to the fixed contacts are mounted on a vehicle-mounted direct-current deicing device; the alternating-current bus is switched in an alternating-current power supply through an alternating-current input cable; and the direct-current bus is switched in a deiced circuit through a direct-current output cable. Without the need of manual wiring, the labor intensityis greatly reduced, the time and labor are saved preferably, the mounting efficiency is greatly improved, the mounting reliability is higher, and the operational safety is higher.

Disclosed is a one-piece ball-throwing and segmenting wall scraper with an aim to mainly solve problems that an existing wall scraper is limited in application and complicated in technology. The one-piece ball-throwing and segmenting wall scraper is characterized by being composed of a body, compression springs, a pressure bearing plug, an inner sleeve, sliders, pressure blocks and the like; grooves used for placing scraper bodies are formed in the body, and each scraper body is located at the bottom of each groove under the initial state and is fixed through each pressure block and a slider mechanism; the lower side of each scraper body is provided with the spring, and a ratchet structure formed by the inner sleeve and the pressure bearing plug can allow the scraper bodies to be opened orclosed by compressing and restoring the springs. By the arrangement, segmenting wall scraping can be realized, cleaning effect is improved, damage to sleeves can be effectively prevented, and servicelife of the sleeves is prolonged; operations such as grinding, wall scraping and pigging can be completed with one pipe column, operation time is effectively reduced, and operation cost is lowered.

A related overturning clamp for a large cover of a crystal growing furnace comprises two symmetrically-arranged bracing frames, and fixed ox-horn-shaped members arranged on the bracing frame in a rotation way; each fixed ox-horn-shaped member comprises a rotation shaft, a movable clamping sheet and a bearing block; one end of the rotation shaft is connected with the corresponding bracing frame in a rotation way, and the other end of the rotation shaft is connected with the bearing block; the bearing block and the movable clamping sheet form a fixing area; the large cover is clamped in the fixing area; and two rotation bearings are coaxially arranged. The overturning clamp is capable of effectively controlling the overturning process of the large cover of the jewel furnace, is simple and convenient to operate, helps to effectively solve the problem that the large cover of the sapphire crystal growing furnace is difficult to overturn, helps to effectively improve hoisting, adjusting, cleaning and afresh assembling processes of a thermal field, and helps to greatly shorten the sapphire crystal growth period, improve production power and reduce sapphire crystal growth cost, thereby improving working efficiency, simplifying working process and reducing working risk.

The invention relates to the technical field of injection molding machines, in particular to screw extrusion equipment for graphene composite high polymer material production, which comprises a frame body, the frame body comprises a workbench, the surface of the workbench is connected with a processing box, one end of the surface of the workbench far away from the processing box is provided with an injection molding device, and the surface of the injection molding device is connected with an injection molding rod. According to the injection molding device, a worker adjusts the position of a telescopic adjusting plate to move, then the injection rate of raw materials during injection molding of the device is adjusted, and it is guaranteed that the polarization situation caused by too high pressure is avoided when a third injection molding head and a second injection molding head or a first injection molding head abut against an injection molding opening; and therefore, it is guaranteed that the device can conduct sealed injection molding on different molds under the condition that different injection molding heads are not replaced, the sealing performance during injection molding is guaranteed, the risks of working intensity and injection molding failures caused when workers replace the injection molding heads are also avoided, the use range of the device is effectively widened, and the use effect of the device is improved.

The invention discloses a bulb with a clamping-connection structure. The bulb comprises a bulb body. The outer contour of the bulb body is arranged in a polygon or oval shape, or the bulb body is provided with a polygonal or oval clamping-connection protrusion. The bulb of the design is provided with the clamping-connection structure facilitating dismounting and mounting, thus, non-contact or remote dismounting and mounting of the bulb can be achieved conveniently in combination with special dismounting and mounting tools during replacement, and the bulb has the characteristics of being safe in dismounting and mounting, simple and practical in structure and low in maintaining cost.