48results about How to "Timely maintenance and replacement" patented technology

The invention discloses a device for on-line health management of an insulated gate bipolar transistor, and belongs to the technical field of electronic circuits, so as to solve technical problems in the prior art that life of an IGBT cannot be detected in an operating process of the IGBT. The device for on-line health management comprises an electric heating detection module, a degradation detection module, and a life detection module. The electric heating detection module is used to detect junction temperature and temperature rise of the insulated gate bipolar transistor according to operating condition parameters of the insulated gate bipolar transistor, combined with the structure of the insulated gate bipolar transistor. The degradation detection module is used to detect performance degradation degree of the insulated gate bipolar transistor according to the operating condition parameters, the structure of the insulated gate bipolar transistor, and the junction temperature and temperature rise. The life detection module is used to detect consumption life of the insulated gate bipolar transistor according to the performance degradation degree.

The invention discloses a safe and intelligent electric power tower. The safe and intelligent electric power tower comprises a tower body, a grounding device, an intelligent detecting bird repelling device and a lightning arrester, wherein the tower body comprises four tower columns; each tower column sequentially comprises a tower column foundation layer, a reinforcing layer, a honeycomb sandwich layer, a tower column outer layer and a corrosion resistant layer from inside to outside; the intelligent detecting bird repelling device is arranged on the top of the tower body; three cross arms are arranged on the upper portion of the tower body; the lightning arrester, a red copper connecting plate and an insulator are sequentially connected between each two adjacent cross arms from top to bottom; the bottom cross arm is provided with a signal processing module, a solar cell panel and a cathode protection and control device; the cathode protection and control device, an auxiliary anode and a reference electrode form an impressed current protecting system; and the solar cell panel supplies power for the signal processing module and the impressed current protecting system. The safe and intelligent electric power tower is high in corrosion resistance, long in service life and low in maintenance cost; the purpose of repelling birds and monitoring a surrounding environment can be achieved; the electric power tower can be monitored and managed remotely; and intelligent degree is high.

The invention relates to a pneumatic soft robot for a pipeline. The pneumatic soft robot comprises a functional module, an air pump, a direction adjusting air bag set, a walking driving part and two fixed air bags, wherein the two ends of the walking driving part are connected with one end of each of the two fixed air bags, and the air pump is mounted at the other end of one fixed air bag; one end of the direction adjusting air bag set is connected with the other end of the other fixed air bag, and the functional module is mounted at the other end of the direction adjusting air bag set; the walking driving part can be extended and shortened along with inflation and deflation; the direction adjusting air bag set comprises at least three ellipsoidal air bags, each ellipsoidal air bag is tightly connected with the adjacent ellipsoidal air bag together, expansion and contraction movements of the ellipsoidal air bags is independent of each other, and steering of the robot is achieved through coordinated movement of all the ellipsoidal air bags. The robot can flexibly adapt to pipelines with different calibers, flexible contact between the robot and the inner walls of the pipelines can be achieved, and multifunctional operation is achieved.

The invention provides a humidifier leakage diagnosis method and a fuel cell system. The diagnosis method comprises the following steps: S1, shutting down the fuel cell system; S2, blowing the fuel cell system by continuously introducing air into the fuel cell system, keeping a throttle valve at the tail end of the fuel cell system at a set opening degree, and detecting an air path unit of the fuel cell system in the purging process; S3, acquiring the actual equivalent throttling flow of the air path unit according to the detection result, and judging the leakage degree of the humidifier in the fuel cell system according to the actual equivalent throttling flow. According to the humidifier leakage diagnosis method and the fuel cell system, the leakage degree of the humidifier can be diagnosed more accurately.

The invention discloses an arc welding machine for new energy automobile parts. The arc welding machine comprises an arc welding machine body, a heat dissipating plate, a disassembly mechanism, a connection mechanism and a resetting mechanism, the disassembly mechanism is located on the surface of one side of the heat dissipating plate and comprises a pull handle, and one side of the pull handle is located outside the heat dissipating plate. According to the arc welding machine, through the arranged pull handle, the situation that the heat dissipating plate cannot be conveniently and quickly disassembled to be cleaned due to long-time use is effectively avoided, the heat dissipating efficiency of a cutting machine is ensured, and thus the service life of the machine is ensured; through arranged fixing blocks, the situation that a screw-connected rear cover of the arc welding machine needs to be manually opened is effectively avoided, and when a failure occurs inside the arc welding machine body, inside parts of the arc welding machine body are conveniently maintained and replaced in time; and through an arranged resetting rod, the situation that function buttons may not be reset due to long-time use is effectively avoided, operations such as starting or stopping on the arc welding machine by an operation panel are ensured, and thus normal operation of the arc welding machine isensured.

The invention discloses a method for reducing longitudinal cracks in the surface of a large-section continuously cast billet. The method specifically comprises the steps: the section taper of 200 mm,300 mm and 330 mm is increased; the vibration amplitude of a crystallizer is increased; the drawing speed of the billet is reasonably controlled; and the atomization effect of a nozzle is improved. The section taper of 200 mm, 300 mm and 330 mm is increased, the contact degree between a billet shell and the crystallizer is increased, and tearing stress of the billet shell attached to the wall of the crystallizer is lowered; slag crusts with the slag crust thickness being larger than or equal to 15 mm are cleared, and scratching of the slag crusts to the billet shell of the billet is reduced; the vibration amplitude of the crystallizer is increased, and heat resistance is reduced; the drawing speed of the billet is reasonably controlled, and thus the thickness of the primary billet shell iseven; the atomization effect of a nozzle is improved, and thus cooling in the cast billet drawing process is even; a convex-bottom-type immersion water gap is used, and growth of the billet shell isfacilitated; and a steel plate with the qualified longitudinal cracks is obtained.

The invention provides a high-reliability submersible pump which comprises a water outlet section, a water lifting pipe, a fluid guide body and a rotor component which are sequentially connected in sequence from top to bottom. The rotor component comprises a water inlet section, an impeller, an impeller chamber, a motor extension shaft, a motor, a cylinder and an end cover, a cooling lubrication chamber is formed among the water inlet section, the cylinder and the end cover, a balance chamber is formed between the fluid guide body and the impeller, a pressure regulating chamber is formed between the impeller chamber and the water inlet section, and a cooling hole, a buffering hole, a pressure regulating hole and a flushing hole which correspondingly communicate with the cooling lubrication chamber, the balance chamber, the pressure regulating chamber and a bearing are arranged; a first-stage sand throwing cover and a second-stage sand throwing cover which are pressed are arranged on the two sides of a shaft sleeve, so that the pump can realize flushing, cooling lubrication, residual axial force balancing, impeller clearance adjustment and buffer starting functions; and a temperature detecting probe, a pressure detecting probe and a water leakage detecting probe are also arranged for achieving monitoring and automation, the running vibration and noise of the pump are reduced, the service life of the bearing and the rotor component are prolonged, and the operation safety and reliability of the pump is greatly enhanced.

The invention discloses a passive shock-absorption elastic element for a flexible robot joint, and belongs to the field of shock-absorption elements. According to the passive shock-absorption elasticelement for the flexible robot joint, an inner ring friction-reduction bushing and an outer ring friction-reduction bushing are arranged between an inner ring and an outer ring; in the rotating process of the robot joint, friction-reduction fine particles in the inner ring friction-reduction bushing are rapidly transferred to the surfaces of balls through speed-control blocks under the effect of irregular elastic balls, so that the friction force between the outer ring friction-reduction bushing and the inner ring friction-reduction bushing is effectively reduced, the stability of the elasticelement is improved, blockage caused during rotation is effectively reduced, and the control precision of a robot is improved; meanwhile, after balls are worn after long-time use, liquid outflow in two directions is prevented; on one hand, rapid lubrication can be achieved, and the friction is reduced; and on the other hand, fluorescent liquid flowing out can emit light to effectively remind workers that the balls are worn, and then the workers can repair or change the balls in time.

The invention discloses an elevator health degree real-time monitoring system, and belongs to the field of intelligent monitoring systems. The system comprises an information collection module, a central processing module, a parameter division module, a component abrasion loss judgment module and a component stability judgment module. The information collecting module is used for collecting various operating parameters of an elevator, the parameter division module is used for arranging priorities of the accuracy of elevator fault judgment of the various parameters, and the central processing module is used for comparing the collected parameters with normal elevator working parameters to judge the overall healthy operating condition of the elevator. And the component abrasion loss judgment module is used for judging the abrasion degree of the component. By comparing the parameters with higher priorities, the overall operation health condition of the elevator can be more accurately judged, the judgment accuracy is higher, the number of the compared parameters is reduced, and the load of a CPU is effectively reduced.

The invention discloses an organic waste gas environment treatment system, and relates to the technical field of tail gas treatment. The system comprises a gas collection device, a filter purificationdevice, a condensing device and an adsorption device, the filter purification device comprises a filter box, a pair of filter plates are vertically arranged in the filter box, a purification plate isarranged between a pair of filter plates, the filter plates comprise frames and filter screens, the purification plate comprises a frame, a screen surface layer and activated carbon, the screen surface layer wraps the outer wall of the frame, the inside of the screen surface layer is filled with the activated carbon, the condensing device comprises a condensing box and sealed heads arranged at two ends of the condensing box, a condensing pipe is arranged in the condensing box, and a collection tank is communicated at the lower end of the condensing box. The system has the advantages that dustin tail gas is filtered by the filter screens and the activated carbon, methylbenzene is condensed by the condensing device and collected by the collection tank, environmental pollution caused by methylbenzene discharged into the air is avoided, and environmental pollution and resource waste are reduced.

The invention discloses a hole protecting mechanism of an aerial work vehicle. The hole protecting mechanism structurally comprises a car bottom guiding plate, a pressing shaft, a protection mechanismbody, a traction swing mechanism, a limit fixing ring buckle, a linkage movable plate, a pit support protection plate and a balance pressure stabilization detection device, the lower surface of the car bottom guiding plate is connected with the upper surface of the protection mechanism body through an electric welding mode, the pressing shaft is installed on the left surface of the protection mechanism body in an embedded mode, the pressing shaft penetrates through the upper end and the lower end of the limiting fixing ring buckle and is connected with the same axis through an attaching mode,the right surface of the limiting fixing ring buckle is connected with the left surface of the protection mechanism body in an electric welding mode. According to the hole protecting mechanism, whensupporting is carried out, the protection plate is subjected to force application balance by applying the connection pressure through the hydraulic pressure, so that the deformation of the plate surface is prevented from being unbalanced, the ultrasonic waves are arranged in the pressure applying plate to carry out detection imaging on the protection plate in a sound wave manner, so that the situation that the detection needs to be disassembled is avoided, and the maintenance and replacement can be timely known.

The invention discloses a heating air cushion hot salt bed convenient to maintain. The salt bed comprises a salt bed main body, a containing main body, a cover body, a connecting mechanism and a resetting mechanism, the connecting mechanism is located on the surface of one side of the cover body, the connecting mechanism comprises a button, a first mounting groove is formed in the cover body, a second mounting groove is formed in the surface of one side of the containing main body, and a clamping groove is formed in the surface of one side of the second mounting groove; according to the invention, the button is arranged, the cover body connected through a screw is effectively prevented from being opened manually, the process is complicated, the cover body is convenient to open, when an airpump in the containing main body fails, internal parts of the air pump are convenient to maintain and replace in time, normal use of the hot salt bed is guaranteed, the situation that the function button cannot be reset after long-time use is effectively avoided through the arranged reset rod, normal operation such as temperature adjustment, opening or closing of the hot salt bed by the operationpanel is guaranteed, and the comfort level of the hot salt bed is improved.

The invention discloses a cable support with a looseness warning function, which comprises a channel, a plurality of vertical plates are symmetrically arranged on the inner wall of the channel throughfixing bolts, each vertical plate is horizontally and fixedly connected with a placement plate for placing a cable, and a mounting groove is formed in one side, close to the inner wall of the channel, of each vertical plate; a movable plate is elastically connected into each mounting groove through a reset spring, and a plurality of ejector blocks corresponding to the mounting grooves are evenlyand fixedly connected to the inner wall of the channel. According to the invention, when the cable support is deformed or the bolt is loosened, the indication roller can be driven to rotate through the cooperation of the reset spring, the movable plate and the pull wire, so that the position of the indication mark on the indication roller is changed, and an inspector can directly judge whether thesupport is loosened or not through the indication mark on the indication roller; therefore, timely processing can be realized, one-by-one inspection is not needed, and the working efficiency of inspection personnel is further improved.

The invention provides a monitoring device, a bearing seat, an air pump and a transformer, the monitoring device is suitable for the bearing seat provided with a bearing, the monitoring device comprises: a controller, wherein the controller is electrically connected with a driving part used for driving a rotating shaft of the bearing to rotate so as to control the movement of the driving part; and a sensor which is arranged on the bearing seat, is electrically connected with the controller and is used for detecting the vibration quantity of the bearing seat and transmitting a detection signal to the controller. The controller compares the vibration quantity of the detection signal with a preset vibration quantity range so as to judge that the bearing breaks down when the vibration quantity of the detection signal is not within the preset vibration quantity range and control the driving part to stop moving. The monitoring device solves the problem that no device for monitoring the state of the bearing of the gas pump for providing gas for the gas transformer exists in the prior art.

An urban electrical equipment carbon emission evaluation system disclosed by the present invention comprises an electrical appliance electricity consumption statistics module, a carbon emission calculation module and an electrical appliance control module, and the electrical appliance electricity consumption statistics module comprises a household electrical appliance electric quantity monitoring unit, an electric quantity state monitoring unit, an electric quantity calculation unit and an electric quantity output unit. The household electrical appliance electric quantity monitoring unit transmits electric quantity information to the electric quantity calculation unit for electric quantity calculation, the electric quantity state monitoring unit detects the power-on state of an electric appliance and transmits state information to the electric appliance control module, and the electric quantity calculation unit transmits the calculated electric quantity information to the carbon emission calculation module through the electric quantity output unit. And the carbon emission calculation module transmits the carbon emission information to the electric appliance control module for emission evaluation. According to the invention, the electric quantity monitoring unit is arranged to monitor the power utilization of the electric appliances, and the electric quantity statistical unit is used for counting, so that the power utilization condition of each electric appliance can be accurately measured, the monitoring is more accurate, and the evaluation accuracy is improved.

The invention provides a bin top type pulse back-blowing dust remover. The bin top type pulse back-blowing dust remover comprises a shell, a filter chamber, an air purification chamber, a security and protection system and an ash removal system, in the shell structure, the upper end and the lower end of a dust remover barrel are connected with an end socket and a stock bin through a top large flange and a bottom large flange, and a filtering chamber for filtering dust and a gas purifying chamber for storing gas are separated in the barrel through a perforated plate; the security and protection system comprises a rupture disk assembly and a differential pressure transmitter, is arranged at the bottom of the barrel and is used for preventing equipment burst and monitoring differential pressure; the ash removal system comprises a pulse control box, an air bag, a pulse valve, a filter bag and a blowing pipe, the pulse control box and the air bag are located on the two sides of the barrel, the filter bag and the air bag are connected through the blowing pipe, the pulse valve is arranged on the blowing pipe, and the pulse control box is used for controlling the pulse valve to feed compressed air into the filter bag for ash removal. The invention further provides a dust removal method and an ash removal method of the bin top type pulse back-blowing dust remover, the problem of gas dust removal in a limited operation space is solved, and recovery of powdery materials after dust removal is achieved.

The invention discloses a zinc oxide valve plate breakdown point detection device based on image recognition. The detection device comprises an image detection module, an image recognition module, a temperature detection module, a microprocessor module, a communication module and a rear platform; the image detection module comprises an infrared thermal imager, wherein the infrared thermal imager performs thermal imaging on a lightning arrester, and transmits a thermal imaging graph to the image recognition module; the temperature monitoring module monitors the temperature of a zinc oxide valveplate; and the image recognition module analyzes and identifies the received thermal imaging graph, identifies a temperature anomaly point on the basis of the monitored temperature data, and sends analarm signal to the rear platform. According to the device, the temperature anomaly point in the zinc oxide valve plate thermal imaging graph is identified through an image automatic identification technology, the breakdown point on the valve plate is judged, and the information is timely transmitted to the rear platform. The invention further discloses a zinc oxide valve plate breakdown point monitoring method based on image recognition. The method is high in detection timeliness and high in precision.

The invention discloses a medical air disinfection and purification device, and particularly relates to the technical field of disinfection and purification devices. The medical air disinfection and purification device comprises a transverse plate and a box body, wherein moving wheels are fixedly connected to one side of the bottom end of the transverse plate, fixed wheels are fixedly connected tothe other side of the bottom end of the transverse plate, and the box body is fixedly connected to the top end of the transverse plate; and a fan is fixedly connected to one side of the box body, anair outlet is fixedly connected to the other side of the box body, a filtering structure is arranged on one side of the interior of the box body, and partition plates are arranged on the two sides ofthe filtering structure. According to the medical air disinfection and purification device, by arranging a fixing frame, a first ionization plate, an electrostatic adsorption plate and a second ionization plate, during use, the fixing frame is arranged below a sterilization mechanism, the bottom of the fixing frame is connected with the first ionization plate, the electrostatic adsorption plate and the second ionization plate, and air passes through the second ionization plate firstly and then passes through the electrostatic adsorption plate; and finally, the air is discharged outwards through the first ionization plate, secondary filtering is conducted on the mass in the air, and the high efficiency of the device is improved.

The invention discloses a fiber grating sensor for measuring pressure of a shield segment. The fiber grating sensor includes a grouting hole shaft tube device, an inner ring protection device and an outer ring measurement device; and the grouting hole shaft tube device includes a grouting hole shaft tube (5), the grouting hole shaft tube (5) includes a grouting hole shaft tube segment (6) and a grouting hole shaft tube end section (7), a plurality of reserved holes (9) are disposed inside the grouting hole shaft tube (5), the inner ring protection device includes a steel protection cover (2),a threaded hole (4) is disposed in the center of the steel protection cover (2), and the outer ring measurement device includes a fiber grating (12). The invention also discloses a method for measuring the pressure of the segment. The fiber grating sensor of the invention can accurately measure the water and soil pressure outside the segment, can monitor the water and soil pressure outside the segment during an entire period, an entire interval, and an entire process, provides more comprehensive information outside a tunnel for tunnel construction and operation stages, and can be repaired andreplaced in time once the sensor is damaged,.

The invention discloses a laying method of apple drip irrigation pipes, and relates to the technical field of drip irrigation. The laying method comprises a vigorous cultivation mode and a dense-planting cultivation mode, specifically, as for the vigorous cultivation mode, main pipe pre-buried grooves are dug among rows of fruit trees on the ground, circular branch pipe pre-buried grooves are dugaround the fruit trees, and drip irrigation main pipes and drip irrigation branch pipes are buried into the corresponding pre-buried grooves; and as for the dense-planting cultivation mode, branch pipe pre-buried grooves are dug in the two sides of each row of trees on the ground, the drip irrigation main pipes are laid at the head positions of the rows of trees on the ground, and the drip irrigation branch pipes are buried in the branch pipe pre-buried grooves; the invention relates to the technical field of drip irrigation. According to the laying method of the apple drip irrigation pipes, the two drip irrigation pipe laying methods are set, thus different laying modes can be selected according to different fruit tree planting modes, and through the laying mode, the drip irrigation pipesare laid underground, so that aging caused by direct sunlight is avoided, meanwhile, damage of farming operation is avoided, and the service life of the drip irrigation pipes is prolonged; and waterand fertilizer are directly dripped out from the 10-30 cm position under the ground surface, ground surface evaporation and ground surface fertilizer waste are reduced, and the water and fertilizer utilization rate can be increased to a certain degree.

The invention discloses a friction damping device, a passive joint with the same and a surgical robot and relates to the technical field of surgical robots. In order to solve the problem that in an existing surgical robot with a complicated structure and circuit, if a permanent magnet brake is suddenly electrified due to electromagnetic interference or other factors, the permanent magnet brake possibly releases a rotating shaft to enable the rotating shaft to rotate freely, and on the other hand, personnel such as operation assistants may touch a mechanical arm to enable the rotating shaft to rotate, so that major personal safety accidents may be caused. A hollow shaft and a hub are coaxially arranged, wherein a plurality of spoke assemblies are evenly arranged on the outer surface of the circumference of the hollow shaft; an actuator cylinder assembly is arranged between every two spoke assemblies, and the bottom of each actuator cylinder assembly is fixedly connected with the outer wall of the hollow shaft through bolts; a plurality of through holes are formed in the outer surface of the circumference of the hub; the top of each actuator cylinder assembly is inserted into one through hole in the outer surface of the hub; and the outer surface of the hub is sleeved with a friction wheel. The friction damping device is suitable for the surgical robot.

The invention discloses a real-time double-line communication method of an LED (light-emitting diode) control system. An LED lamp is controlled and fed back by adopting a time-division half-duplexing method on a two-wire system communication link. With the adoption of the real-time double-line communication method of the LED control system, real-time transmission and processing of data are realized under the condition that links are not increased, so that the cost is lowered, and the maintenance is convenient.

The invention discloses a hole protecting mechanism of an aerial work vehicle. The hole protecting mechanism structurally comprises a car bottom guiding plate, a pressing shaft, a protection mechanismbody, a traction swing mechanism, a limit fixing ring buckle, a linkage movable plate, a pit support protection plate and a balance pressure stabilization detection device, the lower surface of the car bottom guiding plate is connected with the upper surface of the protection mechanism body through an electric welding mode, the pressing shaft is installed on the left surface of the protection mechanism body in an embedded mode, the pressing shaft penetrates through the upper end and the lower end of the limiting fixing ring buckle and is connected with the same axis through an attaching mode,the right surface of the limiting fixing ring buckle is connected with the left surface of the protection mechanism body in an electric welding mode. According to the hole protecting mechanism, whensupporting is carried out, the protection plate is subjected to force application balance by applying the connection pressure through the hydraulic pressure, so that the deformation of the plate surface is prevented from being unbalanced, the ultrasonic waves are arranged in the pressure applying plate to carry out detection imaging on the protection plate in a sound wave manner, so that the situation that the detection needs to be disassembled is avoided, and the maintenance and replacement can be timely known.

The invention discloses a double-sided display device with a decorative lighting. The double-sided display device comprises a Chinese knot rack, a portal type frame, a wheatear knot, a light bar, a display screen, threaded barrels, threaded rods, fixed rings, fastening parts, a limiting barrel, a limiting column, a threaded column, a fixed screw cap, a double-ended fixed rod, a slide hole, a spring, a fixed plate and a fixed hole, wherein multiple threaded rings are fixedly arranged at one side of the portal type frame at equal distance; threaded rods are mounted in the threaded barrels in anengaged mode; the outer sides of the threaded rods are equipped with the fastening parts in an engaged mode; the end parts of the threaded rods are symmetrically and rotatably equipped with fixed rings; one side, away from the threaded barrels, of the portal type frame is equipped with the Chinese knot rack; and the top end of the Chinese knot rack is fixedly connected to the portal type frame. According to the double-sided display device with the decorative lighting disclosed by the invention, the display screen is stably mounted, mounting and dismounting convenience is high, the display screen is conveniently and timely maintained and replaced; meanwhile, the device can regulate mounting length and horizontal perpendicularity; and moreover, dimensions of the fixed rings can be regulatedaccording to different mounting conditions, so that mounting convenience is improved.

The invention discloses a traveling device with a quickly detachable power device, and belongs to the field of proceeding power equipment. The traveling device with the quickly detachable power deviceis characterized in that the traveling device comprises a traveling fixed machine frame, a vibration reduction wheel fork and a traveling wheel; the traveling wheel comprises a center shaft and a wheel body; the center shaft penetrates through the rotary center of the wheel body, one end of the center shaft is hinged to an installation hole formed in one side of the vibration reduction wheel fork, and the other end of the center shaft penetrates through an installation hole formed in the other side of the vibration reduction wheel fork to be connected with a proceeding motor; and a proceedingmotor box is fixed to the vibration reduction wheel fork, and the proceeding motor is arranged in the proceeding motor box. The traveling device can be operated on special ground conditions, and eventhough on the premise that no professional maintenance personnel or maintenance tools exist, the power device can be conveniently overhauled and replaced in time once power outage occurs. The traveling device is simple in structure, practical, low in production and using cost and suitable for being popularized in the industry.

The invention discloses a hot runner flow dividing and side pouring method and mold. The method comprises the steps of (1) arranging a pouring gate base plate, forming a pouring gate groove in the pouring gate base plate, and forming two or more flow dividing transition grooves or flow dividing ports in the edge of the pouring gate groove; 2) arranging a flow dividing cavity at the tail ends of the flow dividing transition grooves or the flow dividing ports, and communicating the tail end of the flow dividing cavity with a side pouring gate; and 3) communicating the side pouring gate with a molding cavity, and carrying out side pouring molding. By means of the hot runner side pouring method and the hot runner mold provided by the invention, the hot runner molding period can be greatly shortened, for example, the one-step molding of a glass bottle plastic cover can be reduced by about 2 seconds, and the yield can be increased by 15% or above. Meanwhile, due to the implementation of thehot runner side pouring gate, the structure of a multi-molding cavity hot runner is simplified, the product quality is more stable, the number of mold cavities can be increased, and the yield is increased. Due to the side pouring mode, there is no degraded material, the labor cost is reduced, materials are saved, the environment is protected, and considerable economic benefits are brought.

The invention discloses a breaking head structure for cement silo cleaning. The breaking head structure comprises a breaker rotation shaft, cutting saw blades and breaking hammers; the multiple cutting saw blades are fixed to the breaker rotation shaft, and the position, between every two adjacent cutting saw blades, of the breaker rotation shaft is circumferentially and movably provided with themultiple breaking hammers; and a chunk of cement accumulated material in a cement silo is divided into a plurality of small cement accumulated material sections through the cutting saw blades, and inthe dividing process, the small cement accumulated material sections are broken into small blocks through the breaking hammers. Each cutting saw blade is formed by combining two semi-circular saw blades, and the semi-circular saw blades are provided with installation holes. The cutting saw blades are vulnerable parts of the breaking head structure and usually prone to being damaged, and if a traditional integrated disc saw blade is adopted, displacement is very difficult; the combined saw blades are creatively adopted, each cutting saw blade is formed by combining two semi-circular saw blades,thus, specific replacement can be conducted according to the damage degree of the semi-circular saw blades, and opening and disassembling are not needed.

The invention discloses an electrical automation distribution box with convenient-to-observe and convenient-to-assemble and disassemble functions, and relates to the technical field of distribution boxes, the electrical automation distribution box comprises a mounting plate, fixed plates are fixedly connected to the left and right positions of the front surface of the mounting plate, and trapezoidal plates are slidably connected in trapezoidal grooves formed in the fixed plates. According to the electrical automation distribution box with the convenient-to-observe and convenient-to-assemble and disassemble functions, a first rectangular sliding sleeve moves downwards, then the first rectangular sliding sleeve and a second rectangular sliding sleeve are far away from each other, and then under the combined action of a first hinge seat, a first pin shaft, a second hinge seat, a second pin shaft and a supporting rod, two movable plates are close to each other; and then clamping rods are separated from clamping grooves and do not limit the trapezoidal plates any more, the trapezoidal plates can slide out of the trapezoidal grooves, a power distribution box body can be disassembled, the disassembling process is convenient and rapid, time and labor are saved, the working efficiency of workers can be improved, the working difficulty is reduced, convenience is brought to the workers, and the using requirements of users are met.