202results about How to "Avoid serious accidents" patented technology

The present invention relates to a home network system in which devices constituting a home network can be installed to provide home network services, and various terminals can be used to control these devices, and to a method of controlling a home network system, a setting for a home network A method of a residential gateway of a network system and a method of processing an event protocol for a home network system. In a home network system, HNSN (100) includes: a user / device information database (130) for storing information about users and home appliances; HnsnRgIF (140), for performing registration, authentication, and connection management for RG Process; HnsnUPnP (120) for performing the process of device control and event control for RG; and application server (110) for analyzing the request and providing control command for HnsnUPnP, and transmitting the response to the control command to the user terminal.

The invention discloses a fatigue load monitoring system for a wind generator set, comprising a first detecting device (211), a second detecting device (212), a control device (22) and an output device (23). The first detecting device (211) is used for detecting the fatigue state of the root of a tower barrel to obtain a first detection signal; the second detecting device (212) is used for detecting the fatigue state of at least one position outside the root of the tower barrel to obtain a second detection signal; the control device (22) is used for receiving the first detection signal and the second detection signal, processing the first detection signal and the second detection signal according to a preset strategy to obtain an actual damage value, and then comparing the actual damage value and the preset damage value to judge the damage state of the monitored position of the wind generator set; and the output device (23) is used for outputting the actual damage value of the monitored positioned. The fatigue load monitoring system has higher monitoring precision so as to maintain each member of the wind generator set in time and prolong the service life of each member. The invention also discloses the wind generator set comprising the fatigue load monitoring system.

The invention relates to a sector segment actuating mechanism taking pressure as a control target, belonging to the technical field of continuous casting equipment in a metallurgy industry. The sector segment actuating mechanism comprises a displacement sensor, a hydraulic cylinder, a pressure sensor, an electric control system, a hydraulic system and a sector segment, wherein the hydraulic cylinder of the sector segment is provided with the displacement sensor and the pressure sensor which are matched with the hydraulic cylinder; the signal output ends of the displacement sensor and the pressure sensor are connected with the electric control system; the output of the electric control system is connected with the hydraulic system; and the hydraulic system is connected with the hydraulic cylinder of the sector segment. The sector segment can reflect the stress of a casting blank in real time by taking the pressure as the control target, solve the problems of errors caused by sensor drifting and initial roll gap setting, prevent the casting blank from internally cracking and the sector segment from being damaged due to overload because of superabundant shrinkage mass and also ensure good casting blank quality through the force analysis of the casting blank. Besides, the method can also be used for judging the position of a liquid core of the casting blank and providing accurate feedback data for the application of a dynamic soft reduction technology.

The invention discloses a security intelligent household door with an automatic induction alarming function. By arranging a wireless charging device, a storage battery in an intelligent door lock canbe charged through the wireless charging device, thus the storage battery is kept to always have the electric quantity, and the situation that the intelligent door lock cannot be used due to electricity shortage is avoided; then a temperature sensor and a smoke sensor are arranged on the back face of the door, thus the indoor temperature and smoke can be detected through the temperature sensor andthe smoke sensor; when a fire or gas leakage occurs indoors, the fire or gas leakage can be detected by the temperature sensor and the smoke sensor, information is transmitted to the intelligent doorlock, the intelligent door lock can be opened conveniently in time, and more serious accidents are avoided; then a crank sliding block mechanism is arranged, thus the intelligent door lock can controls work of an electric telescopic rod, the electric telescopic rod works to drive a sliding block to move, and the crank sliding block mechanism drives the door to be opened accordingly; and an alarmis arranged on the door, and thus nearby personnel are conveniently reminded to cope with an emergency in time.

The invention discloses a precious metal alloy composite material electrode for a spark plug. The precious metal alloy composite material electrode for the spark plug comprises a precious metal alloy composite material electrode body which is fixed on a central electrode of the spark plug and a grounding electrode base in a welding mode, wherein the precious metal alloy composite material electrode body comprises a precious metal alloy electrode matrix and a composite layer which is coated on the surface of the precious metal alloy electrode matrix and at least part of the composite layer is welded with the precious metal alloy electrode matrix; and the surface layer of the composite layer is alloy of base main body material X. By arranging the composite layer which uses the base main body material or the alloy of the base main body material as the surface layer on welding surface of the precious metal alloy electrode and conducting surface modification on the precious metal alloy composite material electrode body, the composite layer can placed between different welding materials to participate in alloying; due to the fact that an alloy layer has the same homogeny with the precious metal alloy electrode base, a continuously gradient solid solution area organization is formed in welding, binding force of welding precious metal alloy with nickel electrode base is improved, and yield is improved of the precious metal alloy electrode and service life of the precious metal alloy electrode is prolonged.

The invention discloses a conveyer belt deviation detecting method based on image identification. The method includes the steps that real-time images are collected, and gray level images are obtained; edges of all objects in the gray level images are detected through an edge detector; edge images are filtered through a filtering template based on the shape and the directivity, and linear type edge images in the direction the same with the conveyor belt running direction are obtained; the continuous edges are marked through two-dimensional matrixes; conveyer belt real-time edges in the real-time images are identified according to known conveyer belt standard edges obtained when a conveyer belt does not deviate; and the deviation distance and the deviation degree of the real-time edges are determined. According to the conveyer belt deviation detecting method, edge detection is carried out on the real-time images collected by video equipment, matching identification is carried out on the detected edges and the standard conveyer belt edges through the image identification technology, the edges of the conveyer belt are determined, and therefore the reliability and the promptness of conveyer belt deviation detection are improved.

The invention belongs to the technical field of power transformer fault diagnosis, and discloses a power transformer fault diagnosis method and a power transformer fault diagnosis device. The power transformer fault diagnosis device comprises: a voltage detection module, a temperature detection module, a main control module, a fault detection module, a signal processing module, a data transmissionmodule, a data analysis module, a fault identification module, a fault early warning module, a fault data storage module and a display module. More related operation data are added through the faultidentification module, a classifier is reasonably trained according to the influence weight of data on fault identification, related training data can be input according to requirements to adjust parameters and precision of the classifier, and finally the effect of reasonably identifying transformer faults is achieved. And the data analysis module is more targeted, so that the electric power department can effectively manage a distribution transformer according to the transformer data analysis report, and the level of managing the distribution transformer is improved.

The invention provide a three-limit time-base circuit composed of analogue integrated circuit operational amplifier A (or voltage comparator B), few separate electronic elements by using new principleand ingenious connection mode. The three-limit time-base circuit has top and bottom limit main control functions completely compatible to all functions of classic 555 time-base circuit can be used asultra-top and bottom limit control circuit and astable, monostable and bistable circuit. The invention increases exceed bottom limit protection and control function, when inputted sensing circuit hasfault, fault display and protection control can be executed in time to prevent the main control circuit from being out of control. The invention, used in control circuits for temperature, pressure, water level etc., may improve security, and prevent severe accidents (such as fire hazard). So, the invention has wide use in electronic application field such as household electrical appliances, simple controllers, and high cost performance of products are provided.

The invention relates to a control method for a moving air conditioner and the moving air conditioner. The control method is used for controlling refrigerant leakage of the moving air conditioner. The control method for the moving air conditioner comprises the steps that the environmental concentration of a refrigerant gas is detected through a refrigerant detecting sensor; and whether the environmental concentration of the refrigerant gas is greater than or equal to a threshold value concentration or not is judged through a controller, and refrigerant leakage of the moving air conditioner can be controlled effectively. If the environmental concentration of the refrigerant gas is greater than or equal to the threshold value concentration, a compressor and a draught fan are controlled through the controller to reduce the environmental concentration of the refrigerant gas. According to the control method for the moving air conditioner, a safe treatment measure is provided for detecting and controlling of refrigerant leakage, potential safety hazards are eliminated, and happening of a serious accident is avoided.

The invention discloses a power distribution cabinet for a humid and dusty outdoor environment. The power distribution cabinet comprises a cabinet body, wherein a water tank is arranged at the bottom part of the cabinet body, is connected to a cold water main pipe through a water inlet pipe and is connected to a return water main pipe through a water outlet pipe; a serpentine cooling pipe is arranged in the water tank; an outlet end of the serpentine cooling pipe communicates with the cabinet body; a processing tank is arranged at the top end of the cabinet body; a cooling fan, a dust removal device and a drying device which are sequentially connected through a pipeline are arranged in the processing tank; an inlet end of the cooling fan communicates with the cabinet body; an outlet end of the drying device is connected to the inlet end of the serpentine cooling pipe; a controller is also arranged in the processing tank; a temperature sensor is arranged in the cabinet body; the temperature sensor and the cooling fan both are electrically connected with the controller; a humidity sensor is also arranged in the cabinet body; and the humidity sensor and the drying device both are electrically connected with the controller. The power distribution cabinet can normally work in the humid and dusty outdoor environment; and the application range is wide.

The invention discloses a pumpkin jelly and a preparation method thereof. Raw materials for the pumpkin jelly comprise, by weight, 900 to 1000 parts of purified water, 20 to 40 parts of gelatin, 10 to 20 parts of agar, 40 to 55 parts of honey, 13 to 18 parts of cane sugar, 6 to 8 parts of green tea, 5 to 6 parts of mustard, 5 to 6 parts of heartleaf houttuynia herb, 5 to 6 parts of purslane herb, 3 to 5 parts of grape seeds, 3 to 5 parts of pumpkin seeds, 8 to 10 parts of carrot, 8 to 10 parts of brassica chinensis, 8 to 10 parts of apples, 10 to 12 parts of fried black soya bean, 10 to 12 parts of pumpkin, 1 to 2 parts of lycium barbarum polysaccharide and a proper amount of food coloring and potassium sorbate. According to the invention, gelatin and agar are mixed and used a gelatinizing agent, so pumpkin jelly not only contains collagen components but also has a softer and more delicious taste, is wet and slippery in mouth and dissolves as one chews, which enables the severe accident of choking because of swallowing to be completely prevented. The pumpkin jelly provided by the invention not only tastes like traditional jellies, but also can enhance health of human beings and promote growth of children and produces no side-effects when eaten for a long time.

The invention discloses a switching method of hot-rolling recoiling machines. The switching method comprises the steps that at the moment t1, a first recoiling machine, a second recoiling machine and a third recoiling machine are in an automatic switching mode, when the former strip steel enters the third recoiling machine and a steel biting signal is generated, the state of the first recoiling machine is judged the first time, and the first recoiling machine is the selected recoiling machine of the current strip steel; at the moment t2, when the current strip steel generates a steel biting signal at F7, the state of the first recoiling machine is judged the second time; at the moment t3, when the current strip steel reaches a fourth set of roller way, the state of the first recoiling machine is judged the third time; at the moment t4, when the current strip steel reaches an eighth set of roller way, the state of the first recoiling machine is judged the fourth time; if the fourth state judgment of the first recoiling machine is successful, the state of the first recoiling machine is judged the fifth time; if the five times of state judgments are successful, the first recoiling machine receives the current strip steel.

The invention discloses an air conditioner with a refrigerant leakage display function. The air conditioner comprises an electric control device and a display device, wherein the electric control device is provided with a detection module, the detection module is provided with a detection component for detecting the operation state of the air conditioner, and the display device is provided with a refrigerant display component for displaying the quantity of remaining refrigerants or leaked refrigerants of the air conditioner. The invention further discloses a display control method of the air conditioner. By means of the technical scheme, the quantity of the remaining refrigerants or the leaked refrigerants of the air conditioner can be displayed in real time, a user can know whether the refrigerants of the air conditioner are leaked according to the display condition, and accordingly faults of the air conditioner caused by leaking of the refrigerants can be prevented in time; more serious accidents are avoided later, and the complaint rate of the user can be effectively reduced.

The invention discloses a method for improving security of a nuclear power unit during the failure of emergency shut-down of a reactor. The method comprises the following steps: generating an anticipated transient protection signal during the failure of emergency shut-down of the reactor, wherein the anticipated transient protection signal comprises first-kind signals and second-kind signals; and triggering first-kind protective action according to the first-kind signals and triggering shut-down of a main pump according to the second-kind signals. Compared with the prior art, the invention has the following advantages: the second-kind signals trigger shut-down of the main pump, and after shut-down of the main pump, the coolant flow of a primary coolant circuit drastically decreases and the temperature of the primary coolant circuit rises, so negative feedback characteristics (e.g., the negative temperature coefficient of a moderator) of the moderator with reactor core neutronics characteristics in the nuclear power unit of a pressurized water reactor are excited; the negative feedback characteristics are fully and ingeniously utilized, so the risk of overpressure of a primary coolant circuit system of the reactor in an anticipated transient moment when the nuclear power unit loses all the water supply and fails to carry out emergency shut-down is effectively eliminated, corresponding accident acceptance criteria are met, severe accidents are prevented, and security of the nuclear power unit is improved.

The invention discloses a glass insulator used for encapsulation connection between the metal end cover and the metal conductive columns of the wiring terminal of a compressor. The glass insulator comprises the components with the weight percentage as follows: 92-94 percent of SiO2, 3-4 percent of Al2O3, 0.5-1 percent of Bi2O3, 0.5-1 percent of TiO2 and 1.5-2.5 percent of SrO, preferably, 93 percent of SiO2, 33.3 percent of Al2O3, 0.7 percent of Bi2O3, 0.8 percent of TiO2 and 2.2 percent of SrO. The glass insulator not only has favorable insulating performance and avoids flashover generated during operation, but also has low probability of generation of crackle under the long-term action of the alternating current of the metal columns, therefore an explosion hazard of the compressor is avoided, and the glass insulator is suitable for widely applied in the wiring terminal of the compressor.

The invention discloses a polytetrafluoroethylene composite diaphragm for a lithium ion battery. It includes a diaphragm, the diaphragm is formed by the upper polypropylene microporous membrane and the lower polypropylene microporous membrane or the upper polyethylene microporous membrane and the lower polyethylene microporous membrane, characterized in that the upper polypropylene microporous membrane A polytetrafluoroethylene microporous membrane is arranged between the porous membrane and the lower polypropylene microporous membrane or between the upper polyethylene microporous membrane and the lower polyethylene microporous membrane. The polytetrafluoroethylene composite diaphragm for lithium ion battery of the present invention not only has the low closed cell temperature of the lithium ion battery diaphragm, but also has the performance of high membrane rupture temperature, and effectively guarantees the safety and reliability of the lithium ion battery during use sex. The polytetrafluoroethylene composite separator for the lithium ion battery of the present invention can be used as a separator between the positive electrode and the negative electrode of the lithium ion battery.

The invention discloses a locomotive hub grinding device. The locomotive hub grinding device comprises a bottom plate, wherein the upper surface of the bottom plate is fixedly connected with two fixedplates; the two fixed plates are separately positioned at left and right sides of the upper surface of the bottom plate; threaded caps are in blocking connection on the side surfaces of the fixed plates; the inner parts of the threaded caps are in threaded connection with threaded studs; and the left ends of the threaded studs are in blocking connection with the right side surfaces of extruding plates through auxiliary devices. According to the locomotive hub grinding device disclosed by the invention, handles are arranged, and a right side blocking block is firstly moved out from a blockingslot, so that a worker rotates the right side handle to drive a rotary plate and the corresponding threaded stud to rotate; under action of the threaded cap at the right side, the threaded stud at theright side moves leftwards to drive a first rotary shaft, a bearing and the extruding plates to move leftwards, so that the two extruding plates can stably clamp a hub, and therefore, the hub does not shake in a grinding process, the grinding effect of the hub is better, working strength of the worker is relieved, and working efficiency of a plant is improved.

The invention relates to an online detection system and an online detection method for an isolating switch. The system comprises a motor operating mechanism, the isolating switch and an online detection device, wherein the motor operating mechanism comprises a motor; the online detection device comprises a detection module, a conversion module, a switch and a centralized control terminal; the detection module is used for acquiring detection analog signals of the motor operating mechanism and the isolating switch; the detection analog signals comprise a temperature analog signal, a displacement analog signal and a switching value analog signal of the isolating switch and a current analog signal of the motor; the conversion module is used for finally converting the detection analog signals into detection optical signals and transmitting the detection optical signals to the centralized control terminal; and the centralized control terminal carries out centralized control on the received detection optical signals. The system and the method of the invention meet the intelligent power grid construction requirements by the state grid, and the safety, the reliability and the anti-interference performance are good.

The invention discloses a deep foundation pit safety assessment method based on utility theory and D-S evidence reasoning. The method depends on deep foundation pit project detection data, predicts the future state of a deep foundation pit based on the third-order Volterra series, and improves the prediction capability of a scheme on project potential risks. The fusion weight of the evaluation index is determined by adopting the variation coefficient and the information entropy, the representation effect of the index variation amplitude and the contained information amount on safety evaluation is considered, and the evaluation accuracy is improved; utilization of utility theories and D S evidence reasoning is used for safety assessment, and qualitative and quantitative analysis of project safety is achieved. According to the method, the finite length unit impulse response filter is used for simplifying the prediction model, model coefficients are reduced, and the state prediction speed is increased. According to the method, a complex evaluation model does not need to be established, a large amount of project risk data is not needed for model training, good scheme realizability and evaluation accuracy are achieved, intervention of too many expert personnel is not needed, and effective use and popularization of the scheme in the later period are facilitated.

The invention discloses a socket device for mechanically assisting in plugging and unplugging a plug. The socket device comprises a box body, wherein a socket fixing mechanism is arranged at a rear end of the box body, three upper supporting blocks are evenly arranged on a rear end surface of a top end of the box left and right, an expansion bucket groove with an upward opening is formed in a topsurface of a rear end of the upper supporting block, an upper through groove with a backward opening is formed in a rear end wall of the expansion bucket groove, a guide groove communicating up and down is formed in a front end of the upper supporting block, a guide rod is slidably connected into the guide groove, a lifting plugging block is fixedly arranged on a bottom surface of the guide rod, plug slots which are communicated up and down are formed in rear ends of the lifting plugging blocks, telescopic airbags are fixedly arranged on side walls of the plug slots, an inner through groove with an upward opening is formed in a rear end of the telescopic airbag, a rear end surface of the lifting plugging block is provided with a plug wire groove which is located at the rear side of the inner through groove and is provided with an upward opening, and a side wall of the plug wire groove is fixedly provided with a protection pad. The socket device is advantaged in that the position of theplug is automatically adjusted, the plug is automatically pressed into the socket through mechanical operation, and the socket is automatically pressed to pull out the plug.

The invention provides a method for high-gas coal seam working surface drilling and exploitation gas pre-drainage and belongs to coal seam drilling and exploitation gas pre-drainage methods. An ultra-thin coal seam is first drilled and exploited for pressure relief and permeability enhancement in coal seams; spiral drilling machines are arranged on a headentry and a tailentry of a first mining working surface to drill and exploit the current working surface and the next working surface; drilling and exploitation excavation makes rock strata around drilling and exploitation holes get loose and causes fracture development; under the protection of casing pipes, with drainage pipes, gaps between the drilling and exploitation holes and the drainage pipes are filled with high water content filling materials, so that drilling and exploitation and drainage concentric holes are formed; after the arrangement of all concentric holes of the headentry and the tailentry of the working surface is complete, drilling and exploitation gas pre-drainage can be carried out. Drilling and exploiting the ultrathin coal seam causes stress concentration around openings of the drilling and exploitation holes and plastic deformation of surrounding rocks, so that fracture development is caused and the adsorption capacity of coal seam gas decreases; through theoretical calculation, it is obtained that the gas dilution effective radius is 5 times the radius of the drilling and exploitation holes. The mining method for first mining high-gas coal seams is reliable, is simple in process, and guarantees the safe mining of first-mining high-gas coal seams.

The invention discloses a satellite health level evaluation method based on a health state laminar flow logic model, and the method comprises the steps: building the health state laminar flow logic model which sequentially comprises a bottom single-machine level, a single-machine level, a subsystem level and a satellite level from the bottom to the top according to each task needing to be executedby a satellite; obtaining the task health degree of each underlying single machine in the health state laminar flow logic model according to underlying single machine telemetering parameters of the health state laminar flow logic model; sequentially determining task health degrees and risk health degrees of a single machine level, a subsystem level and a satellite level in the health state laminar flow logic model by utilizing the task health degree of each bottom single machine; and determining the task health degree and the risk health degree of the whole satellite according to all tasks needing to be executed by the satellite and the task health degree and the risk health degree of each satellite in the satellite hierarchy when the satellite executes each task.

The invention relates to a large-span metal roof panel performance degradation assessment method and device. The method comprises the steps of obtaining the long-term sensor monitoring data representing the state of a metal roof panel; preprocessing the monitoring data; extracting a trend signal, a periodic signal and a noise signal of the preprocessed monitoring data according to a preset algorithm; generating a performance evaluation index representing the metal roof panel, wherein the performance evaluation indexes comprise plastic deformation and fatigue damage performance evaluation indexes; inputting the plastic deformation and fatigue damage performance evaluation indexes into a performance degradation evaluation model; and using the performance degradation evaluation model to output an estimated damage degree. According to the method, the collected monitoring number time sequence historical data are analyzed, the degradation trend of the metal roof panel is mastered according to the performance degradation evaluation model, and the method can be used for guiding maintenance personnel to perform on-condition maintenance and is easy to implement in practical engineering, so that the serious accidents are avoided.

The invention discloses a device preventing from stepping on an accelerator by mistake. The device is arranged on a vehicle. The device comprises an accelerator pedal, an accelerator transmission rod connected with the accelerator pedal, a brake oil cylinder compression bar, and an ECU. The device also comprises an electromagnetic connector, a brake trigger switch, an automatic brake motor, and a vehicle external sensor. The electromagnetic connector is under the accelerator pedal and is close to the accelerator transmission rod. In a normal state, the electromagnetic connector and the accelerator transmission rod are separated, and the electromagnetic connector is above the brake trigger switch. The vehicle external sensor and the brake trigger switch are electrically connected with the input end of the ECU. The electromagnetic connector and the driver of an autobrake motor are electrically connected with the output end of the ECU. The output shaft of the autobrake motor is provided with a brake driving part which can push the brake oil cylinder compression bar. The device reduces damages caused by stepping on an accelerator by mistake, and improves driving safety protection.

The invention provides an eddy current braking device and a braking method thereof, and relates to the technical field of magnetic suspension braking devices. According to the application, when the magnetically levitated train in high-speed running needs to be braked, the driving motor works, so that the lifting mechanism pushes the magnet seat outwards and gets close to the induction plate, and the suspension framework moves to drive the magnet seat to move in the extension direction of the magnetic track; the induction plate fixedly arranged on the track base generates eddy current due to the fact that the induction plate cuts magnetic induction lines of the permanent magnet on the magnet base, the eddy current generates Lorentz force under the action of the magnetic field of the permanent magnet to serve as braking force, and the magnitude of the braking force can be controlled by adjusting the spacing distance between the induction plate and the magnet base. The permanent magnets are adopted to replace electromagnets for excitation, no heat effect is generated, redundant loss of parts caused by unnecessary heat loads is reduced, and the service life of the parts is prolonged. And an additional power supply is not needed to provide an electromagnetic field, so that a large amount of power is saved, and the weight of suspension equipment on the bogie is greatly reduced.

The invention discloses a pre-tension torque detection system and detection method of wind driven generator foundation anchors. The method comprises the following steps: firstly establishing a wind driven generator foundation anchor anchoring system bending vibration mechanics model; and then deducing an inherent frequency equation of the foundation anchor anchoring system; applying instantaneousexcitation on a top end of a foundation anchor exposed section through an excitation hammer, collecting a vibration signal through an acceleration sensor, and analyzing the vibration signal through adynamic signal collection and analyzer, thereby acquiring the vibration inherent frequency of each wind driven generator foundation anchor; and then obtaining a normal contact rigidity k based on themechanics model and the inherent frequency equation, thereby indirectly identifying the pre-tension torque of each wind driven generator foundation anchor. Through the detection disclosed by the invention, the problem that the pre-tension torque of each wind driven generator foundation anchor is large in loss and failed due to wind-induced fatigue can be detected, and the detection has important technical and economic benefit and considerable commercial prospect for guiding the repeated pre-tensioning and reinforcing of each foundation anchor and preventing the draught fan from producing serious accident due to excessive pre-tension torque loss or failure.

The invention discloses an interlocking method for carrying out direct electricity check to cable chamber of high voltage switch cabinet, comprising the following steps: when a cable chamber of a high voltage switch cabinet is powered on at a high voltage, an electriferous display auxiliary contact is powered off to cause a magnet exciting coil to be powered off so that a lock tongue of an electromagnetic lock pops up and runs throughout an interlocking hole of a door of the cable chamber to lock the door of the cable chamber; when the electriferous display of the circuit detects that no electricity passes through the cable chamber of high voltage, the auxiliary contact of the electriferous display is closed to enable a power source of the magnet exciting coil of the electromagnetic lock to be powered on so that the lock tongue of the electromagnetic lock is absorbed in and exits from the interlocking hole of the door of the cable chamber; the door of the cable chamber is opened right now to allow the direct electricity check to the interior of the cable chamber. The invention provides simple, convenient and reliable interlocking method which is convenient to carry out the direct electricity check to the cable chamber of the high voltage switch cabinet so as to prevent serious accident of closing a grounding switch by error.

The barrier is formed by a solid body of soft material (1, 1') with, embedded within, a series of elastic elements (2, 2', 4, 5) that can be embedded directly in the body (V) or embedded within elements (3, 3') of a soft material like that of the body (1, 1'), forming a type of bollard inside said body (1, 1'). The internal elastic elements may be constituted by helical springs (2, 2'), bands (4) or rods (5) and, in any event, the body (1) is capable of being bent over, following the same bend as the internal elastic elements (2-3', 4-3' and 5-3').

The invention discloses an automatic adjustment control device capable of controlling tension and preventing breakage line for cabling equipment of a communication cable. The automatic adjustment control device comprises a stranded wire core, a pay-off rack, a twisting cage, a line die holder and a master control system, wherein the pay-off rack, the twisting cage, the line die holder and the master control system are sequentially connected, the master control system is used for controlling the whole device, a pay-off disc is arranged on the pay-off rack, a brake is arranged on a side surfaceof the pay-off disc, a support roller is arranged on the pay-off rack, the twisting cage comprises a twisting cage rear seat, a twisting core and a twisting cage front seat which are sequentially connected, an annular support is arranged on the twisting cage rear seat and the twisting cage front seat, a rotatable twisting core is arranged on the annular support, the twisting core comprises a linedisc rack and the pay-off disc on the line disc rack, the brake is arranged on the side surface of the pay-off disc, a support wheel is arranged at a right side of the line disc rack and is used for guiding the twisting line core, a support wheel is arranged at the twisting cage front seat, a branch machine is arranged at a right side of the support wheel, and breakage line-prevention device is arranged on the pay-off rack, the twisting cage and the line die holder. The tension of a cable is monitored by the breakage line-prevention device, and the cable is prevented from being damaged by pulling or broken due to abrupt tension.