60results about How to "Safe and reliable work" patented technology

The invention discloses an automatic cleaning device of a monitoring camera, and aims to overcome the defects of low manual cleaning working efficiency, unsafety and occupancy of a crane for cleaning the monitoring camera arranged at a high place existing in the prior art. An electric push rod which can be linked with a lifting mechanism to push up to attach a rotatable rotary brush to an outer cover of the monitoring camera is supported and arranged on one side of an upright post of the monitoring camera. Since the electric push rod is arranged on the upright post of the monitoring camera and can be linked with the lifting mechanism to push up the rotary brush, the rotary brush is attached to the outer cover of the monitoring camera; the electric lifting mechanism and the rotary brush are operated to rotate, so that the outer cover of the monitoring camera can be cleaned; the monitoring camera is kept in a good monitoring state all the time by operating a cleaning mechanism at any time; cleaning personnel are not required to be hoisted under the monitoring camera with the crane to clean; and the automatic cleaning device is safe and reliable in automatic cleaning. The device has the advantages of simple structure, high working efficiency and no occupancy of a large-sized crane for production.

The invention discloses an efficient mixing machine convenient to move rapidly. The efficient mixing machine comprises a base, wherein a machine body is arranged in the center of the upper side of the base, a stirring rotating shaft is vertically arranged in the machine body, a connecting box casing is arranged on the upper right side of the machine body, a first belt pulley and a second belt pulley are arranged on the left and right inside the connecting box casing and connected through a drive belt, the first belt pulley is connected with the top end of the stirring rotating shaft, and a motor case is fixed on the outer wall of the right side of the machine body. The efficient mixing machine convenient to move rapidly adopts the belt pulleys for driving, is safe, reliable and stable in work, has low noise during work and can regulate the running speed; a drive device is arranged on the upper side of the machine body, sealing is not needed to be considered, the production and use costs are reduced, the stirring effect is good, the working efficiency is high, automatic cleaning and automatic discharging can be realized, time and labor are saved, and the working efficiency is further increased; besides, the efficient mixing machine can be moved rapidly and is high in convenience.

The invention discloses a device for wiping glass. The device for wiping glass comprises two adhesive discs respectively provided with a lifting mechanism which is used for making the adhesive disc being close or keeping away from the glass; two lifting mechanisms are connected through a feed mechanism and used for changing the horizontal distance of two adhesive discs; the upper parts of two adhesive discs are respectively provided with a rotating mechanism, which is used for rotating the adhesive disc along the vertical direction; a liquid injection mechanism is arranged for injecting the clear water or washing liquid; a wiping mechanism is arranged at the bottom of the adhesive disc and used for wiping the glass; each adhesive disc is connected with a vacuum generator and the adhesive disc is absorbed to the surface of the glass; a monitoring unit comprises a negative pressure sensor arranged in the adhesive disc, and a gravity sensor and a collision detector arranged outside the adhesive disc; a control unit is used for controlling the device for wiping glass for working according to the preset program and the monitoring signal feedback of the monitoring unit; the conventional work mode for manual operation of prior art is replaced by the device for wiping glass.

The invention discloses a high-power high-frequency transformer double-layer oil temperature monitoring adjusting system and a method thereof. The adjusting system comprises an oil temperature acquisition circuit for collecting oil temperature data in an oil immersed transformer, a filtering protection circuit used for receiving the data of the oil temperature acquisition circuit, processing the data and sending the data to a control circuit, the control circuit used for receiving the signal of the filtering protection circuit, converting the signal into a digital quantity and comparing the digital quantity with a preset value to judge whether temperature is too high or not, a PWM wave output circuit which is connected to the output port of the control circuit and outputs a PWM wave with an expected duty cycle when the temperature is higher than the preset value, a driving circuit which is connected between the PWM wave output circuit and the inverter circuit in a transformer oil temperature control main circuit, and a power supply circuit. According to the system and the method, the transformer can safely work in the safe condition of ensuring a service life and is well adapted to the characteristics of nonlinearity, variability and complexity in working.

The invention relates to a linear filling plug-hanging and cover-hanging cover pressing machine which is used for providing a plug and a cover for a bottle type packing container used for the pharmaceuticals and food industry and is especially suitable for packing oral liquid. The linear filling plug-hanging and cover-hanging cover pressing machine of the invention comprises a bottle feeding-arranging component, a filling component, a cover-pressing component, a bottle discharge thumb wheel component and a machine stand, wherein a plug-hanging component and a cover-hanging component are arranged between the filling component and the cover-pressing component. The invention divides the traditional plug-cover combined type cover hanging component into two separated components, namely the plug-hanging component and the cover-hanging component, thereby putting an end to pollution possibly generated by the traditional hanging cover and preventing the normal running of the machine from beinginfluenced by the malposition of the plug and the cover. The invention has the advantages of reasonable design, novel structure, high degree of standardization and universalization and low productioncost.

A controller consists of power unit, signal receiving and A/D converting unit, signal processing unit, operating and displaying unit and driving unit. The controller detects real time height signal continuously and opens parachute reliably at certain height as soon as the paraboy is out of airplane.

The invention discloses a reflow backwashing mechanism for automatic filtration of fluid. The reflow backwashing mechanism is characterized in that: a fluid inversion chamber (2) is internally provided with a hollow shaft sleeve (12), a blade and a baffle plate are connected with the hollow shaft sleeve (12) which is provided with an opening at a position of the lower part of the baffle plate of the hollow shaft sleeve (12), the hollow shaft sleeve (12) is internally provided with a hollow core shaft (13) with an upward opening, and a shaft wall of the hollow core shaft (13) is distributed with a through hole (14). The reflow backwashing mechanism is provided with a guide through hole with obliquity, thus being capable of fully utilizing composite force of reflow backwashing produced by normal fluid flow and fluid flow out of the oblique guide through hole to quicken rotation frequency of the inversed fluid. The inversed fluid is more stable due to dependence on the core shaft for rotation and arrangement of a counterweight balance, thus the reflow backwashing mechanism has advantages of causing the whole system to have safe and reliable operation and greatly improving automatic filtration effect.

The invention relates to large-scale semi-solid die forging hydraulic machine, which comprises frame composed of upper beam, lower beam fixed with liftout attachment, slide block and brace linked by tie bar, plant, power system connected with main and side cylinders both fixed on lower beam, and electric system to control power system; wherein, the piston is arranged in cylinder with hollow plunger and its sleeve; the liftout pad is fixed on piston top; a rotation-proof flange is fixed on piston with guide pole connected with travel digital display, a cylinder outlet flange is fixed on cylinder; the guide sleeve for cylinder outlet is in cylinder; both guidance tape and seal ring are embedded in piston wall; and a seal ring leveler and block drop-proof device of X-shaped are arranged on the machine. This invention has advantages composed of high speed, low power, high efficiency and precision.

The invention discloses an unblocking device for a cylindrical flat-bottom-shaped reinforced concretebunker and belongs to an auxiliary device for mineral separation. The unblocking device is characterized by comprising an air compressor, manual ball valves I, II and III, air storage tanks I and II, manual ball valves, left and right distribution boxes, an electric control cabinet, a pneumaticflow-assisting device and a pneumatic control device, wherein an auxiliary bunker is mounted at the flat bottom of the bunker; discharging hoppers are mounted on the bottom surface of the flat bottom of the bunker; the pneumatic control device mainly comprises a master control pipeline, an FRL combination (namely, the combination of an air filter, a pressure reducing valve and an atomized lubricator), a two-position two-waysolenoid valve, a pressure gauge II, acircular control pipeline, main control pipelines I and II, a branch control pipeline and pneumaticactuators I; the pneumaticflow-assisting device mainly comprises a master flow-assistingpipeline, a non-return valve, a pneumatic ball valve, a pneumaticactuator II, a pressure gauge I, a circular flow-assisting pipeline, main flow-assisting pipelines I and II, branch flow-assisting pipelines I and II, arc-shaped flow-assisting pipelines, semi-circular flow-assisting pipelines, pneumaticbutterfly valves and flow-assisting nozzles I and II; thus, the efficiency and the quality of mineral separation production are improved.

The invention discloses an electromagnetic heating system and a switch-on control device and method of a switching tube. The electromagnetic heating system comprises a resonant circuit and a driving circuit, wherein the resonant circuit comprises a heating coil, a resonant capacitor and a switching tube, and the driving circuit is used for driving the switching tube. The switch-on control device comprises a voltage detection circuit and a master control unit, the voltage detection circuit is connected with a collector of the switching tube and is used for detecting instantaneous voltages of two ends of the collector and an emitter of the switching tube, the master control unit is connected with the driving circuit and the voltage detection circuit and is used for adjusting heating power of the electromagnetic heating system according to the instantaneous voltages of the two ends of the collector and the emitter of the switching tube, so that the preset switch-on requirement of the switching tube is satisfied, the switching tube is intelligently adjusted under the preset switch-on requirement to be switched on, different pans are adapted well, the demand of a user is satisfied, and moreover, the switching tube can be prevented from being heated or even damaged since switch-on of the switching tube is performed in advance or delayed.

The invention relates to the technical field of bus communication control, in particular to a method for testing bus communication among multiple devices. The multiple devices comprise master devices and slave devices adopting microcontrollers, wherein the master devices and slave devices comprise communication modules; and the communication modules of the master device are communicated with the communication modules of the slave devices through buses. The method is as follows: the master devices execute the following self-test operations at an interval of communication time: (11) testing whether the communication port of the bus of the main device is in a busy state; and (12) if the communication port of the bus of the master device is in the busy state, initializing the communication module of the master devices, otherwise, quitting the self-test operations. In the invention, through self-test, the anti-jamming capability of microprogrammed control unit (MCU) communication can be greatly improved by using a software error correction method capable of automatically recovering after communication failure is found, thereby ensuring the safe and reliable work of electrical equipmentsystems.

The invention relates to a variable frequency driven cable reeling device which comprises a variable frequency motor, a collector, a cable reel, an electric control box, a mounting shaft, a supporting frame and a stand, wherein the mounting shaft is arranged on the supporting frame, and the cable reel is arranged on the mounting shaft; the supporting frame is fixed on the stand; the electric control box is arranged on the mounting shaft and connected with the collector; the electric control box is internally provided with a speed reducer; the upper end of the electric control box is connectedwith the variable frequency motor; and a cable guide frame is arranged on the end head of the cable on the cable reel. The invention has the advantage of safe and reliable work and can improve the production efficiency and the automation degree of crane equipment.

The invention discloses a carton automatic folding device. The carton automatic folding device is characterized by comprising a left edge folding mechanism, a rear edge folding mechanism, a front edgefolding mechanism and a right edge folding mechanism. The left edge folding mechanism comprises a first support, a first horizontal air cylinder, a first sucker, a first turn-over air cylinder and afirst turn-over pressing plate. The rear edge folding mechanism comprises a second support, a second horizontal air cylinder, a second sucker, a second turn-over air cylinder and a second turn-over pressing plate. The front edge folding mechanism comprises a third support, a third turn-over air cylinder and a third turn-over pressing plate. The right edge folding mechanism comprises a fourth support, a fourth turn-over air cylinder and a fourth turn-over pressing plate. Automatic folding of four edges at the bottom of a carton can be achieved, and production efficiency can be improved. In addition, the invention further discloses a carton sticking machine.

The invention relates to a garlic seeding machine. The garlic seeding machine comprises a machine frame, and a power system, a seed tank, seed extracting systems, an air pressure lifting system, a spring righting system, a duckbilled insert seeding device, a trenching device, and supporting wheels which are fixedly arranged on the machine frame; the plurality of seed extracting systems are arranged in a row to shield a front side opening of the seed tank; in applications, garlic seeds are introduced into righting springs through a convey channel; the duckbilled insert seeding device is fixedlyarranged on a spring pedestal; the righting springs are arranged on a connecting square tube in a double row linear back and forth symmetrical arrangement manner; the righting springs and the duckbilled insert seeding device are driven to move upward and downward, and forward and backward by the air pressure lifting system, so that garlic insert seeding is realized. The garlic seeding machine iscapable of realizing righting and insert seeding integrated operation, ensuring that bulb buds are maintained to be upward in falling process and insert seeding process of garlic cloves, avoiding garlic damage, and ensuring vertical plantation, and is high in working efficiency and seeding quality.

The invention belongs to the technical field of prataculture machinery in the field of agricultural machinery and discloses a pasture and biomass briquetting machine. The briquetting machine comprises a rack (1), a motor (2), a driving belt (3), a loading hopper (4), a mold disc (5), a collecting and discharging device (8), a spindle (9) and a plurality of mold sleeves (7), wherein the mold disc (5) is a hollow disc; horn-shaped mold holes (6) facing the center of the mold disc (5) are formed in a side wall of the mold disc (5); the mold sleeves (7) are inserted into the mold holes (6) and are in clearance fit with the mold disc (5); the mold disc (5) is internally provided with a plurality of press rollers (10) distributed uniformly; the press rollers (10) are contacted with the internal surface of the side wall of the mold disc (5); the press rollers (10) are mutually connected by rotating arms (11). The pasture and biomass briquetting machine can meet requirements of different material compression technologies, is low in production cost, high in efficiency, simple in structure and convenient to dismount and maintain, and operates safely and reliably.

In the case of a wedge drive (1) with a slide element receptacle (2), a movable slide element (3) and a driver element (5), wherein sliding surfaces (301, 302) are provided between the slide element (3) and the driver element (5), a dovetail-like or prismatic guiding device (6) is provided between the slide element (3) and the slide element receptacle (2).

The invention relates to an emptying device of a cool fan submersible pump and a control method, the device comprises a machine body and a water circulating system which is arranged in the machine body, the water circulating system is provided with a submersible pump which is electrically connected with an electronic control board, the electric control board is provided with an emptying program which controls the submersible pump to work intermittently, and air in the submersible pump is rapidly expelled under the control of the emptying program. The control method is as follows: after each power-off, when the machine is started again, the submersible pump is energized and works for 1-30 seconds and then stops working for 1-30 seconds, and then after repeating 2-10 times, the submersible pump works continuously. The control program which is set in the electronic control board can control the submersible pump to work intermittently, and after repeating power-on and power-off for several times, the air in the submersible pump can be rapidly expelled within 10 seconds. The emptying device has the advantages of having simple and reasonable structure, working safely, pumping water rapidly, having low cost and high efficiency and saving energy.

The invention provides a fuel gas generator and a testing device suitable for a test of swallowing gunpowder gas by an engine. The fuel gas generator comprises an ignition device, a combustor, a gas collection chamber and an exhaust nozzle, wherein the ignition device is arranged at one end of the fuel gas generator, a plurality of grains are installed in the combustor and are in contact with the ignition, the gas collection chamber is arranged outside the combustor, the combustor is covered with the gas collection chamber, and the exhaust nozzle is arranged at the other end of the fuel gas generator and communicates with the gas collection chamber. The fuel gas generator and the testing device are high in controllability, safe and stable in operation, capable of precisely simulating the environment of high-temperature gas ejected from rocket projectiles, guided missiles and other weapon exhaust nozzles, capable of meeting the demand of conducting the test of swallowing gunpowder gas by the engine or a test of sucking weapon exhaust gas when an aircraft and the engine are shaped, and fills up the vacancy in the special test field at home.

The invention discloses a fan-blade-shaped welding device comprising a workbench, an electric appliance cabinet, a feeder, a discharge device and a welding device body. The workbench is provided withthe feeder, the discharge device and the welding device body. The electric appliance cabinet is arranged on the side face of the workbench. A control panel is arranged on the electric appliance cabinet. A main power source, a control mainboard and a servo driver are arranged in the electric appliance cabinet. The main power source, the control panel and the servo driver are in electric connectionwith the control mainboard through data cables. The feeder comprises a driving device and a weldment clamping device. The driving device comprises an additional motor, a speed reducer, a motor fixingplate, a coupling, a bearing base, a sealed bearing, a rotary shaft, a fan blade plate and an end cover. The weldment clamping device comprises a cover plate and ring soft plastic fixedly arranged onthe fan blade plate. The cover plate is arranged at the top of the ring soft plastic. The fan-blade-shaped welding device has the characteristics of automatic feeding, automatic locating and safe andreliable work, to-be-welded parts of any shapes can be placed, manual welding is replaced to a great extent, the accuracy rate is high, and thus work efficiency is improved.

The invention discloses a pneumatic lifting device for a hanging basket. The pneumatic lifting device for the hanging basket comprises a blade type pneumatic motor, wherein one end of a rotating shaft of the blade type pneumatic lifting motor is connected with a braking device, and the other end serving as an output end is connected with a hoister through a reduction gear; and a gas hole is formed in the casing of the blade type pneumatic motor, and a gas direction control valve is arranged on the gas hole and mutually communicated with a remote controller. The pneumatic lifting device for the hanging basket is safe in operation, cannot be influenced by vibration, high temperature, electromagnetism, radiation and the like, is applicable to a harsh working condition, and can operate normally under the adverse conditions of flammability, explosive environment, high temperature, vibration, moistness, dust and the like; and further, compressed air is adopted as a power source, so that the operation and maintenance costs are low.

The invention discloses heating equipment and a heating method of a cast-welding iron hard die. The heating equipment of the cast-welding iron hard die comprises high-frequency induction coils capable of generating 20-40khz high-frequency induction magnetic force lines, wherein the high-frequency induction coils are mounted on a support base, and connected with a control cabinet by a wire. The heating method of the cast-welding iron hard die comprises the steps that a cast-welding iron hard die body is placed above the high-frequency induction coils capable of generating the high-frequency induction magnetic force lines; a reactance value is adjusted to 0.5-1.5 microhenrys; the control cabinet controls the high-frequency induction coils to run to allow the high-frequency magnetic force lines generated by the high-frequency induction coils to pass through the cast-welding iron hard die body; and the cast-welding iron hard die body is automatically heated to 150-200 DEG C within 1-2min at a high speed. The heating equipment and the heating method are high in heating speed, precise, efficient, safe and environment-friendly, and are particularly suitable for the heating of the cast-welding iron hard die in the lead accumulator industry.

The invention belongs to the technical field of intelligent power grid monitoring and control, and particularly relates to an intelligent monitoring and control system for a prison perimeter high voltage power grid, which comprises a lower computer PLC data acquisition subsystem and an upper computer dynamic monitoring subsystem, wherein the lower computer PLC data acquisition subsystem is used for acquiring various state parameters of operation of the power grid and transmitting the well-processed power grid parameters to the upper computer dynamic monitoring subsystem; the upper computer dynamic monitoring subsystem is used for carrying out early warning processing on the power grid operation parameters, making corresponding feedback according to the early warning information, being linked with other perimeter systems and ensuring the safety of the prison perimeter; and the other perimeter systems comprise a video monitoring system, a door access system, an interphone system and an infrared system. Functions of high voltage power grid intelligent detection, intelligent striking, process recording, region linkage and the like are integrated, the perimeter high voltage power grid and other devices are not mutually independent but operate cooperatively, and prison perimeter safety management intelligence is thus realized.

The invention relates to a water circulation sealing component on a trunk-type rewinding machine. The water circulation sealing component on the trunk-type rewinding machine comprises a main shaft, wherein one end of the main shaft is provided with a circulation water intake and drainage section; the circulation water intake and drainage section along the peripheral direction of the main shaft is provided with an annular water inlet groove and an annular water outlet groove respectively; the annular water inlet groove and the annular water outlet groove are internally provided with a circulation water inlet and a circulation water outlet respectively. The water circulation sealing component on the trunk-type rewinding machine is characterized in that the circulation water intake and drainage section of the main shaft is provided with a rear sealing seat and a front sealing seat through bearings; a middle sealing seat is arranged between the front sealing seat and the rear sealing seat; the front sealing seat is provided with a water intake connection hole communicated with the annular water inlet groove; the rear sealing seat is provided with a water drainage connection hole communicated with the annular water outlet groove; inner cavities between the front sealing seat and the main shaft and between the rear sealing seat and the main shaft are internally provided with mechanical sealing elements respectively. The water circulation sealing component on the trunk-type rewinding machine, which is provided by the invention, has a favorable sealing effect, and can effectively guarantee the normal and safe operation of the rewinding machine and the normal production process.

The invention discloses a multifunctional junction box supporting USB (universal serial bus) OTG (On-The-Go) mode. The multifunctional junction box is characterized by comprising a serial port isolation module, a USB-to-TTL (transistor-transistor logic) module, a serial port type conversion module, a power supply protection circuit, a DC (direct current) DC power supply chip, and a DC voltage output module. A smart phone, a PAD and a Beidou device are connected with adoption of the function of USB OTG; a power supply adopts wide-range input voltage design and supports different DC power supply types used by users; protection against surging, overvoltage and reverse connection is adopted for design of the power supply, so that the junction box can operate safely and reliably in the bad power supply environment; IP67 waterproof design is adopted by the structure, and the junction box can operate in the bad environment.

The invention discloses a coal-fired boiler pneumatic soot blowing system with a circular lower spray pipe type nozzle and a soot blowing method. The coal-fired boiler pneumatic soot blowing system comprises a cylindrical air chamber, an air chamber seal head and a lower spray pipe, one end of the cylindrical air chamber is provided with a sunken interface for connecting a compressed air or steammedium pipeline, the air chamber seal head is welded to the other end of the cylindrical air chamber, a plurality of air ports are formed in the upper portion of the cylindrical air chamber, and the lower spray pipe is welded to the positions of the air ports in the outer wall of the cylindrical air chamber. The nozzle is arranged in an area where ash is easy to accumulate in horizontal and tail flues of a coal-fired boiler, compressed air or steam is used as a medium for blowing ash, enters from the cylindrical air chamber, flows into the lower spray pipe from an air hole in the upper portionof the air chamber, and is sprayed out from a nozzle of the lower spray pipe; and the medium is directionally sprayed towards the wall surface or the heat exchange surface of the flue through the nozzle of the lower spray pipe, accumulated ash in the flue is blown and fluidized, all-directional blowing around the nozzle is guaranteed, disturbance to the accumulated ash is enhanced through directional jet flow of the lower spray pipe, and the problem of accumulation of the accumulated ash in the flue is effectively solved.

The invention provides a transverse moving device in a gear machining machine, which belongs to the technical field of machinery. The transverse moving device in the gear machining machine comprises a machine body and a driving mechanism, wherein a guide rail in the X axis direction, and a slide block sliding along the guide rail under the driving of the driving mechanism are installed on the machine body; a worktable is driven by the slide block; the driving mechanism comprises a screw rod, a fixing base and a motor; the slide block is sleeved at one end of the screw rod and meshed with the screw rod; and the other end of the screw rod is inserted into the fixing base and connected with an output shaft of the motor. The transverse moving device in the gear machining machine has the advantages that the screw rod is driven by the motor to drive the slide block to move along the guide rail, and the worktable moves along the X axis direction; the tightness of a gap between deep-groove ball bearings is regulated by a locking nut, so that the whole transverse moving device works stably, safely and reliably and the gear machining precision can be improved; components are compact; and defects in the prior art are overcome.

The invention provides an illegal parking detection device based on computer vision, comprising an omnidirectional vision sensor, a fast ball camera device and a microprocessor, wherein the illegal parking detection device further comprises: a connecting frame, wherein the connecting frame is used for mounting the omnidirectional vision sensor and the fast ball camera device; and a cleaning device, wherein the cleaning device is used for cleaning the surface of a transparent glass cover of the omnidirectional vision sensor, and the cleaning device is mounted on the connecting frame. Accordingto the illegal parking detection device based on computer vision provided by the invention, when the surface of the transparent glass cover of the omnidirectional vision sensor is cleaned, an operatordoes not have to climb for working, thereby being safer.

The invention relates to an electric protection door controller for civil air defense construction, which mainly comprises an anti-explosion operation cabinet, a touch screen, a program logic controller (PLC), an anti-explosion calling device, a middle relay, an alternating current contactor, a wiring terminal bar, an electric protection door, a hot air blower, an electric ball valve, a position limiting switch and a temperature and humidity sensor and is characterized in that the controller adopts the anti-explosion cabinet as a cabinet body and uses the PLC as a core controller, the electric protection door controller concretely comprises an optoelectronic isolation module, an input module, an output module and an analog-to-digital (A/D) conversion module. The device provided by the invention adopts various electromagnetic pulse protection measures, also adopts anti-corrosion and moisture-proof measures and ensures that a system can safely and reliably work in the nuclear electromagnetic pulse and the civil air defense construction.

The invention discloses a pulsating heat pipe heat dissipating type high-power ultrasonic transducer and relates to the technical field of ultrasonic transducers. The pulsating heat pipe heat dissipating type high-power ultrasonic transducer comprises a piezoelectric ultrasonic transducer and a pulsating heat pipe heat dissipating device. The piezoelectric ultrasonic transducer comprises a stressbolt, a rear cover plate, piezoelectric ceramic elements and a front cover plate, wherein a series of holes are formed along the radial direction of the front cover plate. The rear cover plate is cylindrical, and the front cover plate is conical. The front cover plate, the piezoelectric ceramic elements and the rear cover plate are closely connected through the stress bolt. The pulsating heat pipeheat dissipating device is organically coupled inside the piezoelectric ultrasonic transducer. On the premise that the performance of the transducer is not influenced, based on the mechanical structure of a traditional piezoelectric ultrasonic transducer, the pulsating heat pipe heat dissipating type high-power ultrasonic transducer is formed through organic coupling with pulsating heat pipes. The efficient heat-transferring characteristic of the pulsating heat pipes is utilized to take away heat generated inside the high-power piezoelectric ultrasonic transducer when the high-power piezoelectric ultrasonic transducer works; it is guaranteed that the transducer runs efficiently and safely within a normal-temperature range; and in addition, the service life of the piezoelectric ultrasonictransducer can be prolonged.

The invention relates to a diesel filter capable of automatically pumping oil. The diesel filter comprises a filter seat (2) and a filter tank (3); the filter tank (3) is arranged on the filter seat (2) in a rotatable mode; the filter seat (2) is provided with a motor driven pump (1); an oil cavity (2a) is formed between the filter seat (2) and the motor driven pump (1); and an oil inlet (2b) and an oil outlet (2c) are formed in the oil cavity (2a) of the filter seat (2); and a check valve (4) is arranged at the oil inlet (2b) and the oil outlet (2c) respectively. The motor driven pump is integrated on the diesel filter to replace a manual pump, so labor intensity is reduced, and the diesel filter works safely and reliably and is convenient to use.