154results about How to "Less prone to accidents" patented technology

This invention provides a high heat transfer performance liquid nano-metal. It relates to cooling fluid working medium, and especially it can be used under high rush density condition which need high intensity cooling fluid working medium for heat exchanging and cooling, such as computer array and reactor. The solvent of this invention is liquid metal, and the soluble of this invention is nanometer particle. This invention solve the problem of high price of present metal liquid cooling working medium and the limited performance of common metal liquid, leaking out easily taken place using common liquid and easy forming sediment of present nanometer cooling agent.

The invention provides a vehicle gear selection and parking brake joint control system which comprises an oil tank, a filter, a hydraulic pump, a safety valve, a gear selection operating valve, a forward gear clutch, a backward gear clutch, a reverse gear clutch, a shuttle valve, a liquid control valve, an energy accumulator, a towing vehicle parking brake, a towing vehicle parking hydraulic cylinder, a liquid control air valve, an air bag, an assistor, a trailer parking brake and a trailer parking hydraulic cylinder. The gear selection operating valve comprises an operating level. According to the vehicle gear selection and parking brake joint control system, when the vehicle is at a neutral gear, a towing vehicle and a trailer have a parking brake function, so that accidents do not occur easily when the vehicles are parked on a ramp for operation. According to the vehicle gear selection and parking brake joint control system, the trailer also has a parking brake function during the parking brake of the towing vehicle without needing the arrangement of a towing vehicle parking brake valve, a pneumatic control valve, a relay valve, a check valve and a second air bag, and a vehicle system is simplified.

The invention discloses a concentric sliding block simultaneous casing drilling tool, a center drilling bit and centralizer. The concentric sliding block simultaneous casing drilling tool is formed by the centralizer, a ladder-shaped tapping center drilling bit and semicircle-shaped expanding drilling pieces, wherein the ladder-shaped tapping center drilling bit is connected and matched with a hole to which the centralizer is aligned for torque transmission, the ladder-shaped tapping center drilling bit is connected and located through a locating groove, a locating hole, a solid cylindrical pin and a hollow expansion pin, three semicircle-shaped expanding drilling pieces are in torque transmission through a T-shaped oblique groove and an R arc-shaped oblique groove, mutual included angles of the T-shaped oblique groove and the R arc-shaped oblique groove are 120 degrees by using an axis of the ladder-shaped tapping center drilling bit as the center, the semicircle-shaped expanding drilling pieces slide backwards to the end surface of the centralizer along the T-shaped oblique groove and the R arc-shaped oblique groove when being subjected to rock resistance and can be located, an expanding simultaneous casing can be formed, and the semicircle-shaped expanding drilling pieces slide downwards, can be narrowed and withdrawn due to the resistance of a pipe boot during upward drawing. According to the concentric sliding block simultaneous casing drilling tool disclosed by the invention, the front area of the tapping drilling bit is small, the force is concentrated, and the tapping drilling bit can crush harder or large rocks firstly at stages at crushing speed.

The invention discloses a double-effect perforating bullet containing an active material layer, and an active material. The double-effect perforating bullet comprises a common perforating bullet and the active material layer, wherein the common perforating bullet comprises a cartridge shape cover, a cartridge case and a high explosive layer; the active material layer is arranged between the cartridge case and the high explosive layer; the active material is prepared from the following materials: aluminum powder, nickel powder, magnesium powder, potassium perchlorate, ammonium perchlorate, potassium nitrate, ferric oxide, copper oxide, polytetrafluoroethylene, fluorine rubber, and the like. The double-effect perforating bullet is reasonable in structural design and safe and reliable in manufacturing technology, and has double effects of perforating and removing a perforation compaction band and fracture forming in a pore path.

A method and device for controlling a vehicle based on neighboring vehicles are disclosed. The method includes identifying a fiduciary object associated with each of at least one neighboring vehicle based on at least one image captured for the at least one neighboring vehicle. The method further includes tracking a position of the fiduciary object associated with each of the at least one neighboring vehicle based on a bounding box surrounding the fiduciary object. The method includes determining a direction-speed vector for the vehicle and determining trajectory data associated with each of the one or more neighboring vehicles. The method further includes correlating the position of the fiduciary object and the trajectory data associated with each of the at least one neighboring vehicle. The method includes re-computing the direction-speed vector of the vehicle based on a result of correlating and controlling the vehicle thereafter.

The invention provides a W-Ta-Mo-Nb-Zr high-temperature high-entropy alloy and a preparation method thereof. The high-temperature high-entropy alloy is composed of W, Ta, Mo, Nb and Zr according to anequal or an unequal atomic ratio. The preparation method of the high-temperature high-entropy alloy is further provided and comprises the steps that 1) W, Ta, Mo, Nb and Zr raw materials with the needed weight are weighed; and 2) vacuum electric arc melting is carried out. The W-Ta-Mo-Nb-Zr high-temperature high-entropy alloy prepared through the method can be used for overcoming the strength defect of a nickel-based high-temperature alloy at the temperature of 120 DEG C or above, and replaces the nickel-based high-temperature alloy to be used for the field of high-temperature structures.

The invention discloses a variable-burning rate synergistic perforating propellant which can be used for solving the problems of insufficient ignition, incomplete burning, short acting time and small amount of gas production resulting from the single propellant and unreasonable propellant structure of the conventional composite perforation technology. The variable-burning rate synergistic perforating propellant disclosed by the invention comprises a perforating bullet and a propellant front bin which is mounted at the port of the inner cavity of the perforating bullet, wherein a jet flow channel is arranged in the center of the bottom plate of the propellant front bin; an ignition powder coil, a delay powder coil, a speed-up powder coil and a deflagration powder coil are sequentially arranged from high to low between the circumference and the jet flow channel in the propellant front bin; the four powder coils have the same height at a width ratio of (1-2):(2-4):(2-4):(10-15); and the four powder coils consist of powder of four different formulas and can realize gradual variable-burning rate synergy from the ignition powder coil to the deflagration powder coil. The variable-burning rate synergistic perforating propellant disclosed by the invention has the advantages of simple structure, low ignition power, strong burning resistance and long blast acting time, is convenient to operate, has the reaming pressure increased by 60%, can at least double the synergistic time, and be used for remarkably improving the producing efficiency of an oil gas well.

The invention relates to the technical field of float glass, and provides a full-automatic horizontal glass stacking machine and a glass stacking method. The full-automatic horizontal glass stacking machine comprises a transverse rail, stacking platform assemblies and suction main engines used for sucking glass on a glass production line and then transferring the glass to the stacking platform assemblies to be stacked. Each suction main engine comprises a fixed framework, a traveling device, a movable framework, a lifting device, a suction cup frame and a mobile device. Compared with the prior art, the full-automatic horizontal glass stacking machine provided by the invention improves the grabbing efficiency, accidents are not likely to happen in the glass grabbing process, the stacking time of each piece of glass board is shortened, and the production efficiency is improved. According to the glass stacking method, the suction cup frames are driven to move towards the glass moving direction at the speed the same as the glass moving speed while suction assemblies compress the surface of glass, so that glass is grabbed more conveniently, rapidly and firmly, and the grabbing and production efficiency is improved.

The invention relates to a device for processing an electric appliance wire harness, in particular to a wire harness test production device. According to a wire harness test production line, in a horizontal test platform (1), two horizontally rotating chain wheels (8) are arranged in the length direction, wherein one chain wheel is a driving chain wheel, and the other chain wheel is a driven chain wheel; a chain (9) encircles the two chain wheels (8) to form a circle of conveying chain; a plurality of hooks (3) are outwards extended on the chain (9), every two hooks (3) are connected with a test plate (7), a plurality of groups of wire harness sockets (4) are arranged on the test plate (7), and each group of wire harness sockets (4) is electrically connected with a wire harness tester (6) respectively; and the test plate (7) is arranged on an oblique bracket (10), and the lower part of the oblique bracket (10) is provided with a roller (11). The wire harness test production line relieves the labor intensity, has simple and labor-saving action, is not easy to cause accidents and errors, greatly improves the test speed, has accurate and reliable test result, and improves the turnover efficiency and the speed of the whole work.

An auger for digging holes in soil is coupled to a gearbox and powered by the power take-off of a tractor. The auger comprises a shaft with a cutting head disposed near its bottom end. The cutting head comprises a plurality of cutting (i.e. digging) blades that cut into soil. Flighting disposed above the cutting head moves and lightens soil, but the flighting does not extend far above the cutting head. The majority of the shaft is free from protrusions that may ensnare a user of the auger during use.

The invention discloses a breaker pump and applications thereof on loaders. The breaker pump comprises a brake chamber, a driving vehicle brake chamber and a stopped vehicle brake chamber; the driving vehicle brake chamber is provided with a first rubber skin cup; the driving vehicle brake chamber is divided into a driving vehicle brake left chamber and a driving vehicle brake chamber air receiver by the first rubber skin cup; the stopped vehicle brake chamber is provided with a first piston; the stopped vehicle brake chamber is divided into a stopped vehicle brake air receiver and a stopped vehicle brake right chamber by the first piston; a first push rod is installed at the left side of the first piston; a main spring is installed at the right side of the first piston; the brake chamber is provided with a liquid outlet channel; the brake chamber is provided with a second piston; a first reset spring is installed at the left side of the second piston; a second push rod is installed at the left side of the first rubber skin cup; the second push rod is sleeved by an auxiliary spring; the brake chamber is provided with a liquid outlet chamber; the liquid outlet chamber is communicated with the brake chamber; a liquid storage tank is installed above the liquid outlet chamber; the liquid outlet chamber is provided with a first control valve; the connection or disconnection of the inner chamber and the liquid outlet chamber of the liquid storage tank are controlled by the first control valve. The breaker pump has the advantages of good braking effect, safe use and high reliability.

The invention relates to a transfer device and in particular to the transfer device for test tubes for biological experiments. The technical problem needing to be solved by the invention is to provide the transfer device, which is capable of saving time and effort, avoiding accidents, enabling the construction to be not prone to damage and reducing economic losses, for the test tubes for the biological experiments. In order to solve the technical problem, the invention provides the transfer device for the test tubes for the biological experiments. The transfer device comprises a transfer box and so forth, wherein a moving device is arranged under the transfer box; a cover is arranged on the top of the transfer box; the left side of the cover is in hinged connection with the left side of the top of the transfer box through a pin shaft; and a fixing device is arranged at the upper part of the inner side of the transfer box. The transfer device for the test tubes for the biological experiments achieves the effect of saving the time and effort, avoiding accidents, enabling the construction to be not prone to damage and reducing the economic losses.

The invention discloses an elevator compensation chain guiding control device, and belongs to the field of compensation chain guiding devices. According to the elevator compensation chain guiding control device, in the scheme, a pair of guiding rollers can restrain a compensation chain, overall shaking of the compensation chain is reduced, the surface of a roller body is treated, the the elasticity of the surface of the roller body is increased through laid filling balls, so that abrasion between the compensation chain and the roller body is reduced. For the filling balls located in a filling groove, the multiple filling balls can be kept in a tiled state in the filling groove through matching of filling fibers between the adjacent filling balls and connection between the filling fibers and a reinforcing net, a relatively stable structure of the multiple filling balls can be easily kept, the loss of the elevator compensation chain in the using process can be greatly reduced, the instability phenomenon in the using process of an elevator is not likely to occur, the working loss of the elevator is reduced, the service life of the elevator is not likely to be affected, and casualties of passengers are not likely to be caused.

The invention relates to a welding and polishing device, in particular to a rotary welding and polishing device for intelligent manufacturing. The rotary welding and polishing device for intelligent manufacturing is not prone to causing accidents, does not affect physical and psychological health of people and can polish welding positions. A rotary welding and polishing device for intelligent manufacturing comprises a base, supporting plates and a rotating mechanism. A supporting seat is installed on one side of the base; the supporting plates are mounted on the base at intervals; and the rotating mechanism is mounted among the base, the supporting seat and the supporting plates and used for driving a steel pipe to rotate. One steel pipe is placed in a driven rotating shaft, a locking screw is twisted to enable a clamping claw to limit the steel pipe, then the other steel pipe is inserted into a movable seat to enable a fixed locking block to limit the steel pipe, a servo motor is started, the driven rotating shaft rotates to drive the steel pipe to rotate through the clamping claw, the steel pipe rotates to make contact with the other steel pipe, and then welding is conducted. Therefore, accidents are not prone to occurring, and physical and psychological health of people is not affected.

The invention relates to an overhead transmission line grounding grid non-excavation construction method. Through a horizontal directional drill, from retesting on a construction zone and a surrounding environment before drilling to procedures such as drilling guiding, grounding radial laying out, fixing and grounding radial back leading, laying of a grounding device is completed, safety is high, and laying working efficiency can be greatly improved. When geological conditions are met, the project time limit needed for grounding device laying can be greatly shortened, a construction process is safe, and accidents can be avoided. From economic benefit, currently, the lease expense of equipment is high and is much higher than the expense of hand excavation, accordingly economic benefit is not very good, however, non excavation is achieved during a construction process, crop compensation expense is saved, and therefore directional driller laying construction has optimistic using prospect under the current environment that labor cost and crop compensation expense rise gradually, and environment protection requirements are improved ceaselessly.

The invention relates to a convenient-to-adjust examination table for ophthalmology, which comprises a base, a first seat is fixedly connected to the base, a first hollow rod is placed on the base, a first rectangular rod is slidably connected into the first hollow rod, an examination table body is fixedly connected to the upper end of the first rectangular rod, a sliding block slidably connected with the base is embedded in the upper end of the base, a second hollow rod is fixedly connected to the upper end of the sliding block, and a second rectangular rod slidably connected with the second hollow rod is arranged at the upper end of the second hollow rod in a penetrating mode. The examination table is reasonable in structure, the position of a second seat can be adjusted through one servo motor, the height of the second seat can also be adjusted, the height of the examination table can also be adjusted, and therefore the use requirements of different patients can be met, manual adjustment of medical staff is not needed, the workload of the medical staff is reduced, meanwhile, the second seat is supported more stably, and accidents are not likely to happen.