121results about How to "Enough safe distance" patented technology

The invention relates to an electric-transmission-line cable-terminal three-dimensional downwards-leading device. The electric-transmission-line cable-terminal three-dimensional downwards-leading device comprises a steel pipe pole and cable terminal platforms arranged at the lateral portions of the steel pipe pole. The steel pipe pole comprises a pole body and multiple layers of cross arms with the inner ends connected with the pole body, the projection of the axes of every three corresponding layers of cross arms on the section of the pole body is not superposed, and every three corresponding layers of cross arms include the upper cross arms, the middle cross arms and the lower cross arms. Each cable terminal platform comprises a cable terminal platform main pole and a cable-terminal-head-arrester installation platform which is installed on the cable terminal platform main pole and vertically corresponds to the outer ends of the corresponding three layers of cross arms, the portions, intersecting with the cable-terminal-head-arrester installation platforms, of electric power lines with the direction changed into the vertically-downward direction through the cross arms are correspondingly connected with one ends of power cables, and the other ends of the power cables are grounded. By means of the electric-transmission-line cable-terminal three-dimensional downwards-leading device, sufficient safe distance can be kept between downleads of an overhead line; in addition, appearance is more coordinated and more attractive, wiring construction is clear and convenient, land can not be excessively occupied, and investment is saved.

The invention discloses an automatic stamping machine, which comprises an upper die assembly and a lower die assembly, the lower die assembly comprises a lower die and a lower die driver, and the lower die driver comprises a turntable assembly and a turntable drive motor. The invention can ensure that an operation position of a stamping operator can be isolated from a stamping position by a turntable, consequently, an enough safe distance exists between the operation position and the stamping position when an upper material and a lower material are stamped, the hands of the operator can be protected from injury when misoperation or a mechanical fault occurs, and thereby safety is high; because an automatic control system controls the stamping process, human intervention is reduced, safety accidents caused by human subjectivity are eliminated, and the working efficiency is increased; because the combined structure of a central disk and an annular bearing platform is provided with buffer springs, the eccentric wear between the central disk, a drive shaft and bearings can be effectively prevented, the transmission of stamping force can be effectively obstructed as well, so that the central disk and the drive assembly thereof can be prevented from being affected by the stamping force, and thereby the service lives of the stamping turntable and the driver thereof can be prolonged.

The invention relates to a novel insulating lead wire fixing bracket. The fixing bracket comprises an insulating clamping head, an insulating bracket main body and a base; the insulating clamping head is hinged on the upper end of the insulating bracket main body; a wire through hole for an insulating lead wire to penetrate through is formed between the insulating clamping head and the upper surface of the insulating bracket main body; the base is installed at the lower end of the insulating bracket main body; a clamping groove for clamping a steel crossarm is made on the base; a press screw for pressing against the steel crossarm is installed on the lower bottom surface of the base. The invention is a novel insulating lead wire fixing bracket which is ingeniously designed and simple to operate, has low manufacturing cost and high safety and reliability, and is suitable to be generalized and applied in load-on activities using the insulating lead wire. The device can reliably fix a temporary insulating lead wire, ensures the safe distance between the insulating lead wire and the grounding objects such as the crossarm, solves the safety problem caused by the swing of the lead wire during operation, and improve the safety of a live-wire activity.

The invention discloses an automatic active early warning system for highway rescue. The automatic active early warning system comprises an early warning vehicle and a remote control device, wherein the remote control device is connected with the early warning vehicle through wireless signals, the early warning vehicle comprises an underpan, the lower part of the underpan is provided with a plurality of rolling wheels, the rolling wheels are connected with a motor arranged on the underpan, and a control unit is arranged on the underpan and is respectively connected with a power supply, a warning lamp, a warning plate, a distance measurement sensor, an alarm, an automatic parking device, an automatic tracking sensor and a first singlechip wireless transceiver which are arranged on the underpan. The early warning system can warn drivers and rescue people in the first time, the warning effect is obvious, the safety performance is good, the automation degree is high, the operation is simple, and the occurrence of secondary accidents injuring the rescue personnel can be effectively prevented.

The invention relates to the field of medical apparatuses, and discloses a disposable tubular viscera tying lift apparatus. The lift apparatus comprises a lock fastener, a lift ring and a protective cover. The lock fastener is a key component composed of a tying strap and a locking unit, one side of the tying strap is provided with antislip convex teeth, the other side is provided with length scales, the tying strap surrounds the tubular viscera by a circle, the movable end penetrates the locking unit prior to being tightened, and then the tubular viscera such as the esophagus, intestine and stomach can be tied, blocked, lifted and subjected to length measurement. In laparoscopic surgery, the lock fastener can be used individually, and the lift ring and the protective cover are designed for use in combination for laparotomy operation. The disposable tubular viscera tying lift apparatus is compact, elastic and flexible, and is convenient to use in narrow operation space. Compared with the past common gauze and other instruments, the disposable tubular viscera tying lift apparatus has the advantages that the no-tumor procedure during tumor distal bowel resection in laparoscopic radical rectectomy for rectal cancer is well realized; difficulty in open rectal carcinoma radical operation is lowered greatly; the disposable tubular viscera tying lift apparatus is taken out with specimens to be discarded at the end of operation.

The invention discloses a high-voltage static cooking fume removing device. The high-voltage static cooking fume removing device comprises an insulation shell, an ionization module and a dust collection module, wherein the ionization module and the dust collection module are arranged in the shell and comprise high-voltage polar plates and grounding polar plates, and the high-voltage polar plates and the grounding polar plates are arranged in a crossed manner. The high-voltage static cooking fume removing device is characterized in that the ends of the high-voltage polar plates are bent to form first flanges, and the ends of the grounding polar plates are bent to form second flanges; the high-voltage static cooking fume removing device further comprises a plurality of pressing buckle structures connected with the first flanges and the second flanges at all ends; the pressing buckle structures comprise installation frames and pressing strips, wherein arched insertion strips are arranged on the surfaces, facing the first flanges or the second flanges, of the installation frames, gaps allowing the first flanges or the second flanges to be inserted into are formed between the insertion strips and the surfaces, and insertion holes are formed in the positions, adjacent to the insertion strips, on the installation frames; and pressing connecting pieces are arranged at the positions, corresponding to the insertion holes, on the pressing strips, penetrate the insertion holes and then abut against the back sides of the ends of the high-voltage polar plates or low-voltage polar plates.

The invention discloses a cable terminal pole used for a fracture of a single circuit in a double-circuit same-tower parallel-framed power transmission line. The cable terminal pole comprises a cableterminal pole body, and an upper-layer cross arm structure, a middle-layer cross arm structure and a lower-layer cross arm structure are distributed at the upper part of the cable terminal pole body at intervals from top to bottom; the left side and the right side of the front end of the upper-layer cross arm structure are each connected with a fractured overhead conductor through a strain insulator string; the left sides and the right sides of the front ends of the middle-layer cross arm structure and the lower-layer cross arm structure are also each connected with a fractured overhead conductor through a strain insulator string; and the strain insulator strings are horizontally distributed and are perpendicular to the cable terminal rod body. According to the invention, not only can enough safe distance be kept between drainage wires connected with the overhead conductors, but also when the fracture connection operation of a new line is carried out on one circuit line in a same-towerparallel-framed double-circuit line, the other circuit line does not need to be subjected to power failure processing, so that the safe operation of the cable terminal tower is ensured.

The invention relates to a grab-bucket ship unloader and an operation method thereof. When the grab-bucket ship unloader is used for unloading, the opening limit and the closing limit of a grab bucketare set according to the characteristics of material goods, so that the grab bucket can better grab the material goods; and the hoisting height of the hatch height is set, so that a sufficient safetydistance between the grab bucket and a cabin is kept when the grab bucket is lifted to move to a wharf, and the position of the outside of the cabin and the position of the inside of the cabin are set so that the grab bucket can reliably grab the material goods in the cabin; and after the parameters are set, a control device controls a walking crane and the grab bucket to cycle back and forth according to the set parameters, and then the material goods are released into a storage hopper after the material goods are grabbed from the cabin and conveyed above the storage hopper on the wharf. Therefore, by means of the grab-bucket ship unloader and the operation method thereof, the material goods can be automatically unloaded, and the operation is efficient and reliable.

The invention discloses an electrified fastening antivibrator bolt insulation torsion wrench. The electrified fastening antivibrator bolt insulation torsion wrench comprises a sleeve with an inner hexagonal cavity and insulation discs provided with a handle respectively and used for driving the sleeve to rotate; a ratchet is arranged at the outer surface of the middle of the sleeve; an annular insulation gasket is fixedly sleeved outside the ratchet; the insulation discs are respectively arranged at two sides of the insulation gasket; the insulation discs are of a driving insulation disc and a support insulation disc respectively; the driving insulation disc is hinged to a pawl matched with the ratchet; the driving insulation disc, the support insulation disc, the insulation gasket and the sleeve are movably connected; the handle of each of the driving insulation disc and the support insulation disc is connected with a lengthened insulation arm. The electrified fastening antivibrator bolt insulation torsion wrench can be electrified for operation, multiple inconveniences of a user caused by the power outage operation are avoided, the operation is easy, the safety is high, and the reliable operation of a power system and the personal safety of operation personnel are ensured.

The invention relates to a final-stage passivation method for liquid oxygen kerosene of a carrier rocket. The final-stage passivation method for the liquid oxygen kerosene of the carrier rocket comprises the following steps: installing a main engine passivation electromagnetic valve on a main engine control gas cylinder; firstly, after the final stage of the carrier rocket is separated from a satellite, conducting rocket body attitude adjustment; after rocket body attitude adjustment is completed, conducting maneuvering deorbit; after maneuvering deorbit is completed, discharging a propellant in a liquid oxygen storage tank and a kerosene storage tank through a valve of a main engine; then exhausting and depressurizing a storage tank pressurizing gas cylinder; exhausting and depressurizing a main engine blow-off gas cylinder; controlling gas cylinder exhausting and depressurizing through the main engine, and making an auxiliary power system continuously work to conduct attitude control on the final stage, so as to consume a residual attitude control propellant of the auxiliary power system; and finally, making a rocket-borne battery continuously work to supply power to final-stage electrical equipment, so as to consume residual battery power. According to the final-stage passivation method for the liquid oxygen kerosene of the carrier rocket, final-stage rocket passivation treatment can be achieved by adopting the liquid oxygen kerosene propellant, it is ensured that the final-stage rocket is not disintegrated in orbit and has an enough safety distance from a satellite orbit, and no valves or pipelines need to be additionally arranged on the rocket.

The invention relates to the technical field of 10kV distribution network load operation, in particular to an operating method and device for replacing a 10kV pole-mounted drop-out fuse. A self-extinguishing bypass drop-out fuse is taken as temporary bypass equipment for shunting a drop-out fuse to be replaced in order to fulfill the aim of converting charge, so that the drop-out fuse to be replaced is replaced after exiting from operation. Compared with the prior art, the method has the beneficial effects that (1) the self-extinguishing drop-out fuse is taken as shunting equipment, so that the technical condition for charged replacement of the drop-out fuse is satisfied, and the operation difficulty is lowered; (2) stable connection of the shunting equipment and an electric pole is completed by adopting an insulating lifting bracket, so that enough safety distance can be provided for operating personnel, and the problems of small equipment interval and incapability of mounting the shunting equipment are solved; (3) the method is consistent with the technical characteristics of the national charged operation in China, charged replacement of the drop-out fuse is realized, and economic losses of downstream power utilization enterprises and residents caused by power cut are avoided.

The invention discloses a crystal bar cutoff method of a multi-stage semiconductor crystal bar cutoff machine. The crystal bar cutoff method comprises the steps that S1, a feeding device is used for transferring a semiconductor crystal bar to be cut onto a feeding platform of a material conveying device, and the feeding platform feeds the semiconductor crystal bar to a cutting platform and enablesthe semiconductor crystal bar to fall onto the cutting platform; S2, an aligning device adjusts the level condition of the center axis of the semiconductor crystal bar on the cutting platform; S3, the semiconductor crystal bar is subjected to cutting and sampling operation in cutoff positions in multiple cutting modes; and S4, cutoff crystal bar sections are fed into a discharging platform from the cutting platform in sequence and finally discharged from the discharging platform into a transfer device. Through cooperation of the above method and the multi-stage semiconductor crystal bar cutoff machine, the problems that the cutting functionality is single in the crystal bar section cutoff process, the perpendicularity of the cutoff end face to the center axis of crystal bar sections is poor, the sampling efficiency is low and the crystal bar sections are damaged easily in the conveying process in the prior art are effectively solved.

The invention provides an electric pole erection correcting support. The electric pole erection correcting support is characterized in that the support comprises a rod-shaped part, an arc-shaped part and a moving part; one end of the arc-shaped part is connected with the rod-shaped part, a sleeve is arranged at the other end of the arc-shaped part, one end of the moving part penetrates through the sleeve, the length of the portion, penetrating out of the sleeve, of the moving part can be adjusted, and the other end of the moving part is bent in the direction close to the rod-shaped part. According to the electric pole erection correcting support, the direction of an electric pole can be corrected only by one-person operation, so that time and labor are saved, single-pole erection time is changed into five minutes from ten minutes originally, the sufficient safety distance is guaranteed, and harm to constructors when the electric pole is erected is completely eliminated.

This invention relates to a method of non-contact detection and identification of the type of different substances and mixtures as well as determining their characteristics as concentration, hardness, etc. The method comprises irradiation of the inspected object by a wave pulse or a series of such pulses; reception (1), amplification (2) and analogue-to-digital conversion (3) of the signal, formation of output detailing wavelet coefficients and output approximating wavelet coefficients by means of fast discrete wavelet transformation of the digitized signal, by means of Mallat's pyramidal algorithm and orthogonal base functions, filtering (7) of the output approximating and detailing wavelet coefficients up to preselected ones, comparison of the filtered approximating and/or detailing wavelet coefficients, in the capacity of recognition attributes with preselected respective reference coefficients by the classifying device (8), and according to the comparison result the presence and type is determined and/or the studied characteristics of the inspected object is determined.

The invention relates to the technical field of electric maintenance equipment, and provides a 0.4KV-based power failure-free operation device and method. The 0.4KV-based power failure-free operationdevice comprises an insulating total-shielding tool and a set of operation tool, wherein the insulating total-shielding tool is used for shielding a switch part of a switch cabinet, a feeder line below the switch and to-be-shielded parts in metal grounding bodies on four walls of the switch cabinet; and the set of operation tool is used for fastening a nut at the rear side of the switch and controlling the switch to be replaced after the shielding of the insulating total-shielding tool is finished, so as to realize the insulating total shielding of contactable electrified parts and grounding parts in the switch cabinet by a single person, ensure that the operators do not suffer accidents of mistakenly contacting the electrified bodies when carrying out power failure-free operation, avoid single-phase grounding and inter-phase short circuit accidents, ensure that enough safety distances are kept between the operators and the electrified bodies, enhance the safety of the low-voltage power failure-free operation and ensure the safe and reliable development of the operation.

The invention relates to a portable SF6 device gas leakage and abnormality voice recognition warning device and belongs to the technical field of power industries. A power switch is arranged on an outer shell, an acquisition sensor is arranged at the top end of the outer shell, a circuit board is arranged at the upper portion inside the outer shell, and a battery clamp is arranged at the lower portion of the circuit board; a voice chip, voice output, a power supply, a first digital to analog conversion device, a central processing unit and a second digital to analog conversion device are arranged on the circuit board; the acquisition sensor, the voice chip, the power supply, the first digital to analog conversion device and the second digital to analog conversion device are all connected with the central processing unit, and the voice output is connected with the voice chip and a buzzer. The portable SF6 device gas leakage and abnormality voice recognition warning device plays a role in compensating operation dead corners of the device and a role in warning, and is simple in structure and flexible and convenient to use. Scale values under different working environment conditions can be set, an alarm is given to staff in a working site so that the staff can make an accurate judgment and keep a safe enough distance from the working environment, and personal safety and safe operations of the device are ensured.