74results about How to "Ensure normal power on" patented technology

A lighting unit for producing flash light toward subjects in a photographic scene comprises an matrix array of light emitting elements arranged so as to have individual lighting fields different from one another, a selective excitation circuit for exciting selectively the light emitting elements so as to produce flash light, different in intensity as appropriate, in predetermined lighting patterns and an excitation / extinction circuit 250 for exciting or extinguishing the light emitting elements. A photographic equipment equipped with the lighting unit has directive switches or buttons for directing the lighting unit to select lighting pattern according to focal lengths, zoom rations, operation modes including a communication mode, and / or demands of pre-lighting,

The invention discloses a household multifunctional safety protection distribution box which comprises a distribution box shell. A comprehensive digital display alarm is arranged on the upper side of a panel of the distribution box shell, a smoke sensor probe is arranged on the left lower side of the panel on the front side of the distribution box shell, an alarm buzzer is arranged on the middle lower side of the panel on the front side of the distribution box shell, a switch contact output socket is arranged on the right lower side of the panel on the front side of the distribution box shell, a temperature detection probe is arranged inside the distribution box shell, backup protectors are arranged on the leftmost side of the inside of the distribution box shell, power lightning protection devices are arranged on the right side of the backup protectors, an overvoltage and undervoltage protector is arranged on the right side of the power lightning protection devices, a leakage protector main switch is arranged on the right side of the overvoltage and undervoltage protector, and circuit breaker branch switches are arranged on the right side of the leakage protector main switch. The household multifunctional safety protection distribution box has the advantage that a comprehensive household electricity safety protection effect can be realized by the power distribution box with monitoring and protection devices.

The invention discloses a repeatable connecting and separating device. The repeatable connecting and separating device comprises a shell, a motor, a driving part, a locking hook, a guide part and pinshafts, wherein the motor is installed on the shell, the locking hook, the driving part and the shell sleeve the guide part in sequence, after the pin shafts are fixedly connected with the locking hook, the two ends of the pin shafts protrude on the surface of the locking hook, one ends of the pin shafts are clamped into first curve grooves of the guide part, and the other ends of the pin shafts are clamped into second curve grooves of the driving parts; the shell is fixedly connected with the guide part; the motor drives the driving part to rotate horizontally, the driving part horizontally rotates to make the pin shafts relatively move in the second curve grooves of the driving part, and meanwhile, the relative motion of the pin shafts is limited by the first curve grooves of the guide part; the pin shafts drive the locking hook to stretch out of or draw back from the shell; the locking hook is used for locking or unlocking an outer connecting and separating device. A fastening separating device of a modularized spacecraft comprises a compressing releasing device and the repeatable connecting and separating device.

The invention discloses an optical-fiber composite low-voltage intelligent cable used in coal mine. The optical-fiber composite low-voltage intelligent cable comprises: an insulation core, a fiber unit and a control cable unit. The cable is characterized in that: rubber strip fillers are filled in gaps between the insulation core, the fiber unit and the control cable unit; a taped covering, a fire protection layer and an over sheath are successively arranged out of the insulation core, the fiber unit, the control cable unit and the rubber strip fillers. The optical-fiber composite low-voltageintelligent cable of the invention has good fireproof performance, a mechanical property, an insulating property, a flame retardant property and an acid-resisting / alkali-resisting anticorrosion performance, and possesses low costs and a fiber communication function.

The invention discloses an electronic device shell assembly and a manufacturing method of the electronic device shell assembly. The method comprises the first step of acquiring a metal shell, wherein the metal shell is composed of at least two metal segmenting components, and the adjacent metal segmenting components are connected through metal connecting components, the second step of combining the metal shell and insulating components, wherein the adjacent metal segmenting components are also connected through the insulating components, and the third step of conducting electrochemical treatment on the metal shell and then removing the metal connecting components to obtain the electronic device shell assembly. By means of the method, the metal shell is subjected to electrochemical treatment, and the communication performance of an electronic device is not influenced.

The invention discloses a four-way valve for an air conditioner, comprising a four-way valve block arranged in a four-way valve shell. A four-way valve exhausting communication pipe, a four-way valve evaporator communication pipe, a four-way valve return air communication pipe and a four-way valve condenser communication pipe which are communicated with the inner cavity of the four-way valve shell are arranged on the four-way valve shell. The four-way valve has the following structural characteristics that: one end of the four-way valve block is connected with one end of a spring; the other end of the spring is connected with the inner wall of the four-way valve shell; and an electromagnetic coil for controlling the expansion and the contraction of the spring is arranged on the four-way valve shell at the position of the spring. The spring comprises a left spring and a right spring; the electromagnetic coil comprises a left electromagnetic coil and a right electromagnetic coil; the left and right ends of the four-way valve block are respectively connected with one ends of the left spring and the right spring; the other end of the left spring is connected with the left inner wall of the four-way valve shell; and the other end of the right spring is connected with the right inner wall of the four-way valve shell. The invention has the characteristics of less parts, low production cost, low energy consumption, easier control and wide application range.

The invention provides a cabinet cooking device and a cooking system. The cooking system comprises at least one central control system. The cabinet cooking device comprises a cabinet body which comprises an accommodation cavity, a cooking appliance which is arranged in the accommodation cavity, a power supply device which is connected with the cooking appliance to provide electric energy for the cooking appliance, and a control device which comprises a communication device. The communication device communicates with the central control system, and receives order information sent by the centralcontrol system. The control device converts the order information into cooking parameters, sends the parameters to the cooking appliance, and controls the cooking appliance to cook according to the cooking parameters. A first communication device can receive the order information sent by the central control system. A second communication device converts the order information into the cooking parameters and sends the parameters to the cooking appliance, so that the cooking appliance can cook according to cooking parameters. A customer does not need to manually select the cooking parameters onthe cooking appliance after the customer places an order. The personnel cost is reduced.

The invention discloses a centrifugal-force-based speed limiting device for an electrorheological fluid type wheelchair, and relates to the technical field of old-age care equipment. The device comprises a rotary disc, wherein uniformly distributed resistors are fixedly connected to the inner wall of the rotary disc, a negative plate electrically connected with the resistors is fixedly connected to the inner wall of the rotary disc, a positive plate symmetrical to the negative plate is fixedly connected to the inner wall of the rotary disc, and uniformly distributed electromagnets are fixedlyconnected to the inner wall of the rotary disc. According to the centrifugal-force-based speed limiting device for the electrorheological fluid type wheelchair, through cooperative use of a rubber film and a clamping groove, when the wheelchair exceeds the limited speed, a piston block can move to the outer side under the action of a centrifugal force, and electrorheological fluid in a U-shaped groove is extruded to the inner side through the piston block at the moment, so that the rubber film expands, the rubber film is attached to the clamping groove, and finally, the electrorheological fluid is changed into a solid state, the friction force between the rubber film and the clamping groove is effectively increased, the speed of the wheelchair is effectively reduced, and therefore the effect of preventing the wheelchair from stalling is achieved, the safety of old people is guaranteed, and the application range of the wheelchair is widened.

The invention relates to a device and method for comprehensively utilizing construction waste, and belongs to the technical field of construction waste disposal. The device comprises a machine frame.A pulverizing machine for pulverizing the construction waste is arranged on the machine frame. The pulverizing machine comprises a feed port and a discharge port. A screening plate is arranged on themachine frame and located under the discharge port. A pressing roller is arranged on the screening plate. An electromagnet is arranged in the pressing roller. A recovery hopper is arranged on one sideof the screening plate. A discharge hopper is arranged under the screening plate. A driving piece for driving the pressing roller to get close to or away from the recovery hopper is arranged on the machine frame. The driving piece drives the pressing roller to roll on the screening plate so as to further crush the construction waste; scrap iron in the construction waste is attracted to the surface of the pressing roller through the electromagnet, and other construction waste falls into the discharge hopper through the screening plate; and the aim of sorting out the scrap iron is realized, andthe scrap iron can be conveniently recovered.

The invention discloses power monitoring equipment with a safety protection function. The power monitoring equipment with the safety protection function comprises an installation plate, a housing, anda vertical rod, wherein a camera main body is fixedly installed at the lower end of the housing; fixing screw rods are vertically inserted into two side ends in the installation plate in a penetrating manner; a first contact is fixedly mounted in the center of the upper wall in the installation plate; and the housing is arranged at the lower end of the installation plate. According to the power monitoring equipment with the safety protection function provided by the invention, a first motor drives a second rotating shaft to rotate, so that a first gear is driven to rotate, a second gear is driven to rotate, and first rotating shafts are driven to rotate; a third gear and a transmission chain drive a fourth gear to rotate, so that the first rotating shafts on two sides are in linkage and drive a first bevel gear to rotate; the first bevel gear drives a second bevel gear to rotate, so that a fourth rotating shaft rotates, and fan blades are driven to rotate; and heat dissipation work isconducted on the camera main body through generated wind power, so that the working temperature of the camera main body is reduced.

A fuel cell system is provided with a fuel cell that supplies fuel gas to an anode electrode and that supplies oxidant gas to a cathode electrode to generate electric power; a scavenging gas supply device that scavenges the inside of the fuel cell; a temperature detection device that detects a temperature of the inside of the fuel cell; a deterioration countermeasure scavenging device that executes deterioration countermeasure scavenging by the scavenging gas supply device and replaces the accumulated gas accumulated in the anode electrode with the scavenging gas; and a sub-zero countermeasure scavenging device that executes sub-zero countermeasure scavenging with a greater flow volume than the scavenging gas supplied during the deterioration countermeasure scavenging and to discharge the generated water in the inside of the fuel cell.

The invention relates to a vehicle backstop sliding window assembly. The vehicle backstop sliding window assembly comprises a whole window framework, fixed glass, an upper guide rail, a lower guide rail and a sliding window; defrosting heating lines are arranged on the fixed glass and the sliding window; the sliding window is provided with a cable rolling device; the cable rolling device comprisesa box, a rolling unit, a first electric conduction device and a second electric conduction device; the box comprises a bottom box body and a box cover; the bottom box body is arranged on the edge ofthe sliding window; the box cover is detachably installed above the bottom box body; the rolling unit is fixed inside the bottom box body; the first electric conduction device is arranged on the rolling unit; the rolling unit is wound with a first cable; the output end of the first cable is electrically connected with the first electric conduction device; the second electric conduction device is fixed to the inner surface of the box cover and in electric contact with the first electric conduction device; and a second cable is arranged between the second electric conduction device and the defrosting heating line of the sliding window for electric connection. The sliding window can ensure electrifying work of the defrosting heating line of the sliding window no matter in which state.

The invention relates to the technical field of LED lamp detection, and discloses a flow production detection device capable of rapidly screening LED lamps. The flow production detection device comprises a support, a lamp tube, a magnet sliding plate, a coil and a photoresistor are arranged in a columnar groove, a rectangular groove is formed in the lower side of a fixed shell, a conical surface is formed in the right side of a sliding block, a metal base is arranged in the sliding block, and a guiding device comprises an inclined face, a contraction groove, a swing rod, a metal sheet set anda third spring. A rotating wheel drives the lamp tube in the upper-end columnar groove to rotate anticlockwise so that the lamp tube can make contact with the metal base, if the lamp tube is damaged,the magnet sliding plate extrudes a first spring under the action of gravity, and the rectangular groove in the left side is opened; if the lamp tube works normally, the photoresistor receives stronglight, the coil generates a magnetic field opposite to the magnet sliding plate, and the coil drives the magnet sliding plate to block the rectangular groove in the left side, so that the problems that an existing LED lamp is low in detection efficiency and cannot detect a plurality of LED lamps are solved through the structure.

The invention discloses a groove-type rare earth permanent magnet brushless motor, and relates to the technical field of brushless motors, in particular to a groove-type rare earth permanent magnet brushless motor which comprises a motor shell. A right side bearing support is fixedly installed on the right side in the motor shell, a ball bearing is fixedly installed in the middle of the right sidebearing support in a sleeving mode, and the middle of the ball bearing is fixedly sleeved with a driving shaft. According to the groove-type rare earth permanent magnet brushless motor, a micro controller controls a plurality of micro electric telescopic rods to drive a magnet rotor to move, and the effective contact length of the magnet rotor, a stator and a winding wire is adjusted, so that therotating speed of the motor is adjusted, the problem that the motor is easily damaged due to frequent adjustment of current in the prior art is solved, the service life of the motor is improved, andmeanwhile, through mutual cooperation of a limiting clamping ring and a limiting bearing, the miniature electric telescopic rods are limited, and the stability of the miniature electric telescopic rods driven by the magnet rotor to rotate is guaranteed.

The invention belongs to the field of machine repair, and particularly relates to a bearing lubricating device. The bearing lubricating device comprises a machine frame, a lubricating portion and a rotary portion. A sliding rail is arranged on the machine frame. The lubricating portion comprises a supporting seat, an oil tank and two or more oiling units symmetrically arranged relative to the axisof the supporting seat, a first flow guide hole is formed in the supporting seat, and the oil tank is provided with an oil inlet pipe communicating with the first flow guide hole. Each oiling unit comprises an electromagnet fixed to the machine frame, an oiling bar connected with the machine frame in a sliding mode and a sliding hole formed in the supporting seat, wherein a tension spring is fixed between one end of the oiling bar and the electromagnet, the other end of the oiling bar extends into the sliding hole, an oil outlet and a second flow guide hole capable of communicating with the first flow guide hole are formed in the oiling bar, and the oil outlet communicates with the second flow guide hole. The rotary portion comprises a moving table, a rotary table and a rotary wheel, themoving table can slide on the sliding rail, the rotary table is rotationally connected with the moving table, a positioning shaft is arranged on the rotary table, and the rotary wheel and the rotary table are in belt transmission. By means of the scheme, the problem of non-uniform lubrication in the prior art is solved.

A power supply outlet assembly for powering and / or recharging electric vehicles, comprising a casing that accommodates at least one power socket and at least one automatic protection breaker that is electrically associated with said socket; said outlet assembly being characterized in that it comprises an adapter, to which said at least one power supply socket is fixed, and a support, to which said at least one automatic protection breaker is attached; said outlet assembly further comprising an automatic reclosing device, which is associated with said automatic protection breaker, and an actuation means that is associated with said socket and is adapted to actuate said automatic reclosing device.

The invention discloses polishing equipment for aluminum alloy imitation wood grain materials. The polishing equipment comprises a main equipment body, wherein the main equipment body is provided witha groove, and sliding guide rails are fixedly installed at the upper end of the main equipment body; a first stepping motor is fixedly installed in the main equipment body, and a first gear is arranged at the upper end of the first stepping motor; and a moving plate is arranged on the sliding guide rails, a first rack is fixedly installed on the lower surface of the moving plate, and the first rack is located in the groove and is in meshing connection with the first gear. In conclusion, the polishing equipment has the beneficial effects that the polishing equipment for aluminum alloy imitation wood grain materials is provided with the moving plate, a detachable vice and a lifting rod and can move horizontally with the materials, the use flexibility of the polishing equipment is improved,materials needing to be polished can be fixed, the polishing accuracy is improved, the height of a polisher can also be adjusted, different sizes of materials can be polished conveniently, and convenience is realized.

The invention relates to a horseshoe-shaped lock which is used on a bicycle or an electric bicycle and is used for locking a wheel and limiting the wheel to rotate, in particular to a horseshoe-shaped lock which is unlocked electromagnetically. According to the technical scheme, the electromagnetic horseshoe-shaped lock is characterized in that a cavity is formed in a lock shell, an electromagnetic retractable device, a spring bolt and a torsional spring are arranged in the cavity, a locking piece is arranged at one end of the spring bolt, a retractable rod of the electromagnetic retractable device is connected with the spring bolt, and the spring bolt drives the locking piece to be abutted to the side surface of a lock ring under the effect of the torsional spring; when the lock ring is driven to move to enable a lock groove to correspond to the locking piece, the locking piece immediately rotates into the lock groove so as to realize locking, the electromagnetic retractable device works, and the retractable rod drives the spring bolt to overcome a force of the torsional spring so as to rotate; and when the locking piece leaves away from the lock groove, the lock ring is reset by the spring to realize unlocking. By the scheme, the novel electromagnetic horseshoe-shaped lock is quick and convenient to use and does not require to be unlocked by a mechanical key.

A tidal current energy generating device includes an outer frame (1), at least one inner frame (2), at least two hydro turbines (3), at least one center shaft (4), at least one generator (5), and at least three bearings (6). The at least one inner frame (2) is separably disposed in the outer frame (1). At least two hydro turbines (3) are located below a water surface and are disposed in one inner frame (2). At least two hydro turbines (3) are disposed coaxially and are vertical-axis hydro turbines. At least one center shaft (4) is disposed through the at least two hydro turbines (3), the axis direction of the center shaft is perpendicular to the horizontal plane, and the center shaft (4) rotates along with the rotating of the hydro turbines (3). The at least one generator (5) is located above the water surface and connected with one end of the center shaft (4). The at least three bearings are sleeved on the center shaft (4) and are located on two sides of and between the two hydro turbines (3), respectively. The tidal current energy generating device can be modularly assembled and replaced above the water surface and can extend along the water depth direction, thereby improving the power generating efficiency.

The invention relates to the technical field of fireproof cables, in particular to a composite fire-resistant fireproof cable and a preparation method thereof. The composite fire-resistant fireproof cable comprises an outer sheath, a steel tape armor layer, a flame-retardant interlayer, a fireproof layer and a cable core, the cable core is formed by twisting three wires, and each wire comprises a conductor, a ceramic silicone rubber insulating layer and a metal wire braid layer from inside to outside; each conductor is formed by twisting a plurality of copper guide wires; the fireproof layer is prepared by filling a silicone rubber material with polytetrafluoroethylene fine powder, and the polytetrafluoroethylene is obtained by irradiation cracking and ultramicro airflow crushing; and the insulating sheath is made of a silicon rubber material. According to the fireproof cable disclosed by the invention, normal electrification of a line within a certain time can still be ensured at a certain flame temperature, and the fireproof cable has excellent high-temperature-resistant fireproof performance.

The invention provides a material clamping mechanical hand movement device, and belongs to the technical field of medical apparatuses and instruments. The material clamping mechanical hand movement device solves the technical problems that an existing carbon photon treatment instrument carbon rod is unstable in clamping, the movement effect is poor, and the movement accuracy is low; the material clamping mechanical hand movement device comprises an installing plate arranged horizontally, a movement plate arranged on the installing plate and movably connected with the installing plate, and at least two material clamping bases movably arranged on the movement plate and used for clamping a carbon rod; and the movement plate can move in the axial direction of the installing plate, the material clamping bases can transversely move on the movement plate, and two adjacent material clamping bases get close to or be far away from each other. According to the material clamping mechanical hand movement device, clamping and movement of the carbon rod are separately carried out, the clamping effect of the material clamping bases on the carbon rod is better, the carbon rod moves on the movement plate through the material clamping bases, the movement plate moves on the installing plate, movement of the carbon rod in the axial direction and the transverse direction is achieved, the stability during carbon rod movement is better, and the movement accuracy is higher.

The invention belongs to the technical field of electrical cabinets, and particularly relates to an active avoidance-based anti-collision electrical cabinet. The active avoidance-based anti-collision electrical cabinet comprises a rear plate, a bottom plate, a top plate, a side plate, a front plate, element mounting shells, avoidance mechanisms, connecting support parts, guide rails, a transverse beam, and avoidance sliding blocks, wherein the multiple element mounting shells are connected together through the connecting support parts, and are all mounted on the transverse beam; the transverse beam is slides in guide rail grooves of the guide rails through the avoidance sliding blocks; the front and back parts of the element mounting shells are connected with the front plate and the rear plate through the four avoidance mechanisms; when the front plate or the rear plate is subject to impact force and deforms, the adjacent avoidance mechanisms are released; then the original force balance between the two sides of the element mounting shells is lost; and the element mounting shells move to the other side under the function of pulling force of the avoidance mechanisms on the other side, so that the overall electrical cabinet is far from the impact point side, and the element mounting shells are protected. According to the active avoidance-based anti-collision electrical cabinet, the failure of the avoidance mechanisms is triggered by impact, then the element mounting shells move to avoid impact, and therefore, the active avoidance-based anti-collision electrical cabinet has a relatively good practical effect.

The invention discloses a power line wideband communication signal attenuation method which comprises the steps. S1, a power line wideband communication signal is divided into two power line wideband communication signals which are connected in parallel; S2, a part of a power line wideband communication signal allows current to pass and is processed by a low-frequency signal high-frequency signal resistance signal; S3, the other part of the power line wideband communication signal conducts signal attenuation processing; S4, a signal which passes in a step S2 and the signal which passes in a step 3 are coupled together, and the step S2 and the step S3 are simultaneously conducted. When a power line is ensured to be normally galvanized, the power line wideband communication signal can be attenuated, current is stable, electrical equipment in a whole experiment network works stably, and the unnecessary problem that environment can not be really simulated due to abnormal power supply is avoided.

The invention discloses distribution transformer energy efficiency metering detection equipment. Thedistribution transformer energy efficiency metering detection equipment structurally comprises a placing table, an electric control box, a supporting frame and a direction adjusting mechanism, the electric control box is installed on the upper end face of the placing table, the rear side end of the placing table is welded to the lower end of the supporting frame, and a resistance testing head is adjusted to be in the direction abutting against the outer side of a coil. The spring rod is used for elastic supporting, a wire is synchronously pulled, the torsion spring drives a winding roll to rotate, and the length of the wire is automatically adjusted, so that normal electrification of the resistance testing head is ensured, and the resistance testing head is prevented from falling off from the coil; in the descending process of a linkage disc, the middle end of the outer side of the transformer abuts against an extrusion sliding block, the two ends of the outer side of the attaching piece draw close to the inner side, at the moment, the extrusion ball generates elastic force, the abutting capacity of the abutting piece and the outer side surface of the transformer is improved, and displacement of a detection head at the lower end of the linkage disc in the detection process is avoided, therefore, the accuracy of detecting the resistance of the coil by the detection head is improved.

The invention provides a high-heat-dissipation easy-to-carry power distribution cabinet based on an injection and suction principle, and relates to the technical field of power equipment. The high-heat-dissipation easy-to-carry power distribution cabinet based on the injection and suction principle comprises a cabinet body, ventilation openings are formed in the left side and the right side of thecabinet body, a wind shield is rotatably connected to the interior of the ventilation opening, a gear is fixedly installed on the side, close to the interior of the cabinet body, of the wind shield,the inner side of the gear is engaged with a bending rod, a first spring is fixedly connected to the bottom end of the bending rod, and a lifting rod is fixedly installed in the center of the top endof the bending rod. The high-heat-dissipation easy-to-carry power distribution cabinet based on the injection and suction principle can extract and discharge the hot air at the top of the cabinet body, so that the heat dissipation effect of the cabinet body is improved; the cabinet body is sealed after the normal temperature is recovered, so that dust cannot enter the cabinet body, and normal power-on of an internal circuit is guaranteed; and the cabinet body can be carried conveniently, and meanwhile, operation of universal wheels is more convenient and faster.

The invention relates to an integrated electric heating ceramic tile. The integrated electric heating ceramic tile comprises ceramic tile body units and electric heating wire groups. Chamfers are arranged on the four corners of each ceramic tile unit. Cut surfaces are located at the chamfers. The four corner splicing portions of every four ceramic tile body units are provided with a sealed waterproof junction box. A transit binding post (or a waterproof plug-in piece) is arranged in each sealed waterproof junction box. The electric heating wire groups in the ceramic tile body units are connected with the transit binding posts in the sealed waterproof junction boxes (or the electric heating wires and the waterproof plug-in pieces are in butt joint in box bodies in an integrated compoundingmanner). The electric heating wires are connected with the transit binding posts (or the waterproof plug-in pieces) through threaded columns or male tabs. When the ceramic tile body units are spliced,the apex angles of every four ceramic tile body units correspond to one sealed waterproof junction box, and then one large heating floor tile unit can be composed, and the sealed waterproof junctionbox has the functions of transit and electric conduction. The integrated electric heating ceramic tile has the main advantages that spicing and installation are convenient, the installation environment is flexible, the heat conversion efficiency is high, and the number of the ceramic tile body units can be changed at will according to the size of a site.

The invention relates to an intelligent charging station for electric vehicles, which is used for an underground parking lot and comprises a control center, a standby parking area, a conveying assembly and a plurality of charging piles, wherein the control center is connected with and regulates the conveying assembly and the charging piles, the charging piles can move back and forth along the conveying assembly, the charging piles are provided with liftable charging guns, the control center is used for regulating and controlling the charging station, the standby parking area is provided with an overhaul stand and an overhaul cabinet, the conveying assembly is used for moving the charging pile to the position needing to be charged, and the charging pile is provided with a liftable charginggun. The intelligent charging station for the electric vehicles provided by the invention can make full use of the upper space of the parking lot, saves land resources, is convenient and fast, and enables the charging of a user to be more convenient.

The invention discloses a glazed flame-retardant PVC material for a cable sheath and a preparation method thereof. The material comprises the following components in parts by weight: 100-150 parts ofPVC, 30-50 parts of a glaze, 4-5 parts of a stabilizer, 45-60 parts of dioctyl phthalate, 0.5-1.0 parts of a lubricant, and 5-10 parts of zinc borate. The preparation method comprises the following steps of: S1. preparation of the glaze, S2. kneading of the glazed flame-retardant PVC material, and S3. plasticized granulation of the glazed flame-retardant PVC material. The glazed flame-retardant PVC material for the cable sheath provided by the invention has A-class flame-retardant property, can effectively prevent the flame-retarding and dripping of the wires and cables, has the heat insulation effect, can protect an insulating layer from thermal breakdown, and ensures that the material can be powered on at a fire site for a period of time.

The invention relates to the technical field of environment monitoring and specifically a regional environment monitoring method. The regional environment monitoring method comprises the steps of S1,determining a detection region and a monitoring point; S2, after arriving at the monitoring point, detecting the soil at the monitoring point by utilizing a soil detector, sampling the water at the monitoring point by utilizing a water quality sampler, detecting the irradiation dose of the sunlight by utilizing a solar power generation device which is electrically connected with a flow meter, andmeasuring the wind speed at the monitoring point by utilizing a wind meter; and S3, sending the water sample obtained in the step S2 to the water quality monitoring station for detection. The method can monitor the environment of the detection point preliminarily by detecting the water quality, the soil, the air volume and the irradiation at the detection point; furthermore, the regional environment monitoring method not only finishes a detection task, but also provides electric energy to other electric devices as the solar power generation device is adopted for irradiation detection.