30results about How to "Guaranteed working life" patented technology

The invention relates to the field of air detection, in particular to a flux real-time monitoring system based on an ABB greenhouse gas closed-circuit analyzer. The invention discloses a flux real-time monitoring system based on an ABB greenhouse gas closed-circuit analyzer. The flux real-time monitoring system comprises a gas analysis subsystem, a meteorological observation subsystem and a data acquisition and processing analysis subsystem, the gas analysis subsystem is responsible for measuring the concentration change of greenhouse gas, the meteorological observation subsystem is responsible for providing atmospheric background information, a complete, continuous and real-time flux monitoring system can be formed, the system can efficiently operate in a field environment, the flux of the greenhouse gas can be monitored and accurately calculated in real time, and the real-time performance of the system is improved. And long-term ecological system research and climate change monitoring are supported.

The utility model relates to the technical field of hot press equipment, in particular to hot pressboard adjusting equipment for a hot press. According to the technical scheme, the hot-pressing device comprises a rack, universal wheels, a hot-pressing platform, telescopic limiting rods, a buffering mechanism and an adjusting mechanism, the universal wheels are arranged at the four corners of the lower portion of the rack, the hot-pressing platform is arranged on the rack, a fixing frame is arranged on the portion, on one side of the rack, of the hot-pressing platform, and the adjusting mechanism is arranged on the portion, on the fixing frame, in the rack. A hot pressing plate is connected to the adjusting mechanism in a sliding mode, and buffering mechanisms matched with the hot pressing plate are arranged on the upper side and the lower side of the rack; according to the device, the motor can be controlled to drive the two-way screw rod to rotate on the bearing seat and the fixed seat, the two-way screw rod is in threaded fit with the sliding block, so that the sliding block is driven to vertically move along the guide rods, and the guide blocks slide between the guide rods, so that stable movement of the hot pressing plate can be limited; the height of the hot pressing plate can be accurately adjusted, and it is ensured that the moving direction of the hot pressing plate is accurate.

The invention discloses a precision current transformer measurement and data analysis method, particularly relates to the field of current detection and dynamic signal analysis, and comprises a precision magnetic core design scheme based on a nanocrystalline strip and a dynamic magnetic performance test and frequency response analysis method. A nanocrystalline strip with high magnetic conductivity and low loss characteristics is selected as a magnetic core material, and a high-performance magnetic core suitable for multiple frequency ranges is designed; the magnetic stability and response characteristics of the magnetic core material under different working conditions are evaluated by combining high-frequency current source excitation with dynamic magnetic performance test; a signal acquisition and frequency decoding technology is adopted, an output voltage signal is analyzed in real time, and the linearity and precision of a measurement system are optimized through a mathematical model; according to the method, accurate measurement and data analysis of complex current signals under high-precision and high-frequency conditions are realized, and the applicability and reliability of the current transformer are improved.

The invention provides a composite nozzle for an oxygen hydrocarbon fuel torch igniter. The composite nozzle is suitable for oxygen-liquid hydrocarbon fuel and oxygen-gaseous hydrocarbon fuel. The composite nozzle mainly comprises a hydrocarbon fuel top cover, a hollow hydrocarbon fuel nozzle, an oxygen injection body, a hydrocarbon fuel annular cavity, an oxygen annular cavity, a cooling medium annular cavity, an annular oxygen channel, a cooling medium injection hole and the like which are coaxially arranged. By reasonably distributing oxygen, hydrocarbon fuel and cooling medium parameters, the wall face of the combustion chamber can be effectively cooled on the premise that high combustion efficiency is guaranteed, and long-time normal work and service life of the igniter are guaranteed.

The invention discloses a shock-absorbing, noise-reducing and dust-removing capacitor motor using a voltage relay. The base connection structure provided in the invention can have a good buffering and shock-absorbing effect on the vibration generated by the motor during the working process. On the one hand, it has a good protective effect on the motor, and on the other hand, it can ensure the normal operation of the motor; the first filter screen, the second filter screen, the dust-absorbing cotton filter screen and the sound-absorbing cotton filter screen in the wind cover device can prevent impurities and dust in the air from entering the motor during the heat dissipation of the motor, thereby protecting the internal components of the motor and ensuring the working life of the motor, and further eliminating the noise generated when the motor is working, reducing sound pollution and ensuring a good working environment; the fixed connection structure provided can realize quick installation and fixation of the wind cover device, and it is also very convenient to separate the wind cover device from the motor body, thereby providing convenience for the staff to maintain the wind cover device or the motor body.

The utility model relates to the technical field of advanced manufacturing and automation, and discloses a gantry hydraulic device which comprises a water-cooling pressing head, an upper pressing head is fixedly installed at the bottom of the water-cooling pressing head, a spring washer is arranged at the top of the water-cooling pressing head, an outer clamping sleeve is arranged at the top of the spring washer, and a lower pressing head is arranged at the bottom of the outer clamping sleeve. A first inner hexagon screw is fixedly installed in the outer clamping sleeve through threads, and a clamping ring is arranged on the periphery of the outer clamping sleeve. A sealing pressing ring is arranged at the top of the upper pressing head, a V-shaped sealing ring is arranged at the top of the sealing pressing ring, a middle ring is arranged at the top of the V-shaped sealing ring, and a first bolt is arranged on the left side of the middle ring. The water-cooling pressing head is arranged, the upper pressing head is arranged at the bottom of the water-cooling pressing head, the upper pressing head is driven by the hydraulic system to descend to make contact with the top of a workpiece so that the workpiece can be pressed, the water-cooling pressing head can cool the upper pressing head in the period, and the effect of guaranteeing the service life of the upper pressing head is achieved.

The utility model discloses a driving assembly for grinding and cleaning small parts, which belongs to the technical field of small part conveying and comprises a rotating shaft rotationally connected to the outer wall of a box. The rotating shaft is fixedly connected with a driving magnetic wheel; one end, close to the rotating shaft, of the conveying shaft extends out of the box body and is fixedly connected with a driven magnetic wheel; the driving assemblies such as the rotating shaft, the driving magnetic wheel and the driven magnetic wheel are designed on the outer side of the box body, so that during later maintenance, the driving assemblies do not need to enter the box body, a worker can perform maintenance directly on the outer side of the box body quickly and conveniently, meanwhile, the driving assemblies are designed on the outer side of the box body, and it is avoided that during grinding and cleaning, the grinding efficiency is greatly improved. Liquid is splashed to the surface of the driving assembly, the corrosion problem is avoided, and the working life is ensured.

The application discloses a kind of ferrite material and preparation method thereof, belong to inductance material field.The ferrite material includes main component and additive;The additive includes the following mass percentage component: Bi2O360%-80%, MoO3 10%-30%, SiO2 5%-20%.Bi2O3, MoO3, SiO2 of specific mass percentage content are used as additive and NiCuZn compound in the application, improve the magnetic permeability and thermal conductivity of inductor device product, guarantee the working life of device.

The invention provides a hydrogen fuel cell convenient for power supply, and relates to the technical field of cells, the hydrogen fuel cell comprises a cell fixing plate and a cell fixing cover, and the cell fixing cover is installed above the cell fixing plate; a protective cover is mounted between the battery fixing plate and the battery fixing cover; a guide sliding rail is mounted on the outer side of the protective cover; the side face of the guide sliding rail is provided with an open groove, and a metal conduction piece is installed in the open groove. A heating temperature control module and a catalyst detection module are mounted between the battery fixing plate and the battery fixing cover. The catalyst on the catalyst layer is heated by using the heating wire, the number, distribution and adsorption capacity of active sites on the surface of the catalyst are known by using an ascending-sequence heating adsorption and desorption curve method, the activity of the catalyst is evaluated, the detection efficiency is greatly improved, and the service life of the hydrogen fuel cell is ensured. The problem that the operation process is tedious and complex in the mode that a catalyst layer is directly detached from a battery for sampling detection is solved.

The utility model relates to the technical field of electric heating, in particular to a high-temperature-resistant explosion-proof electromagnetic heating rod of a storage tank for an oil field, which is lower in cost, not easy to oxidize and light in weight, and comprises a shell, a heating coil, a temperature sensor and a power line, a heating coil is arranged in the shell, a power line supplies power to the heating coil, the heating coil is made of a high-temperature-resistant composite aluminum wire material, a temperature sensor is further arranged at the position of the heating coil, and by means of the combination of an aluminum core and a high-temperature-resistant insulating layer, the electrical conductivity and the thermal conductivity of the heating coil are guaranteed; and the insulating property and the high temperature resistance of the heating coil are ensured, and the problem that copper or copper alloy is easy to oxidize and expand at high temperature is effectively solved.

The utility model discloses a filter structure of a fresh air ventilator, which belongs to the field of filter structures and comprises a filter mechanism mounted on the fresh air ventilator, and the filter mechanism comprises filter gauze, a through groove, a lower fixing frame, an upper fixing frame, a second rubber pad, an extrusion plate, a storage box and an outlet. The filter gauze filters oil fume at the indoor air inlet, so that a large number of oil fume particles are adhered to the gauze, the situation that a large number of oil fume particles enter the draught fan box to damage the fresh air machine is avoided, the situation that a large number of oil fume particles are adhered to the filter element to reduce the working efficiency of the filter element is avoided, and the working life of the filter element is kept; the filter gauze movably moves in the indoor air inlet, and when oil smoke in the gauze in the indoor air inlet is too much, the filter gauze is pulled downwards, so that the filter gauze is movably replaced by a new gauze, and the filter gauze is convenient to replace.

The invention discloses a novel cold drawing packaging machine which comprises a main machine frame, a film supporting assembly is arranged on the main machine frame in the first direction, a conveying assembly is arranged below the main machine frame in the second direction, the conveying assembly is connected with a material pushing assembly, and a discharging sealing assembly and a film feeding assembly are arranged close to the main machine frame. The discharging and sealing assembly and the film feeding assembly are the same in operation principle. The device is simple in structure and reasonable in design, the whole device completely replaces traditional carton packaging, the cost is greatly reduced, the packaging efficiency is improved, the safety performance is high, the automation degree is high, and the dampproof and anti-oxidation effects are achieved.

The utility model discloses a transformer trunking structure which comprises a transformer iron core and a coil, a transformer trunking assembly is installed on the top of the transformer iron core and comprises an outer partition plate and an inner partition plate, a limiting assembly is installed on the inner partition plate, the limiting assembly comprises a sliding groove and a guide rod, and the outer partition plate and the inner partition plate are connected through the sliding groove. A locking assembly is installed on the outer partition plate, the locking assembly comprises a guide pin and a second elastic piece, a heat dissipation assembly is installed on the outer side of the transformer iron core, and the heat dissipation assembly comprises a first elastic piece and silicone grease. The inner partition plate and the outer partition plate are used for increasing the heat dissipation area, the heat dissipation efficiency of the coil is effectively improved, the working temperature of the coil is reduced, the working safety of the coil is guaranteed, the service life of the transformer is further guaranteed, and the transformer coil fixing device is suitable for being used for installing and fixing the transformer coil.

The utility model relates to the technical field of batteries, in particular to a thermal management system and a power battery, and the thermal management system comprises a strip-shaped temperature adjusting component which is internally provided with a temperature adjusting working medium; the number of the temperature conducting components is multiple, and the multiple temperature conducting components are sequentially arranged in the length direction of the temperature adjusting component; each temperature conducting component is provided with a coating part, and the coating part is in contact with at least one wall surface of the temperature adjusting component; the temperature conducting component is in contact with the battery cell, and the temperature of the temperature adjusting working medium can be transmitted to the battery cell through the temperature conducting component to adjust the temperature of the battery cell. According to the thermal management system provided by the invention, the combination of the heat pipe and the conventional cooling pipeline is utilized, so that the temperature regulation requirements of cooling and heating of the battery system are efficiently met, the thermal uniformity is improved, and the number of joints of the heat pipe and the cooling pipeline is greatly reduced, so that the working life of the thermal management system is effectively ensured; and the probability and risk of leakage of the temperature adjusting working medium are reduced.

This utility model provides a magnetic levitation low-friction dual-hub device suitable for heavy-duty medical equipment, belonging to the technical field of hub devices. This magnetic levitation low-friction dual-hub device for heavy-duty medical equipment includes an outer load-bearing hub, an inner drive hub, radial ceramic bearings, and an axial magnetic levitation module. The outer load-bearing hub is sleeved on the outside of the inner drive hub. The radial ceramic bearings are disposed between the outer load-bearing hub and the inner drive hub, and are connected to the inner wall of the outer load-bearing hub and the outer wall of the inner drive hub, respectively. The axial magnetic levitation module is disposed at the end of the outer load-bearing hub away from the radial ceramic bearings, and is connected to the end of the outer load-bearing hub. This invention solves the problems of high friction coefficient, high movement resistance, heavy operating burden for medical personnel, and difficulty in meeting the frequent movement requirements of traditional heavy-duty medical equipment hub systems.

The utility model discloses a side chain lubrication oiling machine for a mesh screen of a tobacco redrying machine, which relates to the technical field of oiling machines and is provided with a positioning mechanism comprising a clamping sleeve, a sliding sleeve, a sliding rod, a positioning structure and a locking structure. A positioning structure is arranged between the clamping sleeve and the sliding rail; the sliding sleeve is fixedly installed on the clamping sleeve, and the bottom end of the sliding rod is inserted into the sliding sleeve in a sliding fit mode and provided with a locking structure. A liquid spraying rod is further arranged, and the liquid spraying rod is fixedly installed at the top end of the sliding rod. The position of the liquid spraying rod parallel to the rolling path of the roller is adjusted through the positioning mechanism, lubricating oil or cleaning liquid can be conveniently sprayed to the roller through the liquid spraying rod after accurate positioning so as to lubricate or clean the roller, the lubricating state of the roller can be well kept, roller deformation caused by accumulation of oil dirt is avoided, and the service life of the roller is prolonged. Normal work of the mesh screen is guaranteed, and the service life of the roller is prolonged.

The utility model discloses a grinding machine transverse feed ball screw pre-tensioning structure which comprises a screw rod installed on a bearing seat I and a bearing seat II through a bearing assembly I and a bearing assembly II, the bearing assembly II comprises a pair of angular contact ball bearings which are installed on the screw rod and located in a bearing hole II, and the opposite angles of the angular contact ball bearings are in contact. An inner ring and an outer ring of an angular contact ball bearing are limited in a shaft step of the lead screw and a hole step of a bearing hole II respectively, a locking nut II screwed on the lead screw limits the inner ring of the other angular contact ball bearing, and a gland installed on a bearing seat II limits the outer ring of the angular contact ball bearing. The first bearing assembly comprises a deep groove ball bearing and a thrust bearing which are installed on the lead screw and located in a first bearing hole, an inner ring of the deep groove ball bearing is limited to a shaft step of the lead screw, a gasket is arranged between the thrust bearing and the deep groove ball bearing, the gasket is limited to a hole step of the first bearing hole, and the thrust bearing is pressed on the gasket through a first locking nut screwed on the lead screw. And an interval of 2mm is reserved between the gasket and the end face of the deep groove ball bearing.

The utility model relates to the technical field of stirrers, in particular to a stirrer capable of quickly discharging air and dissipating heat, which comprises a host assembly and a stirring rod assembly, the host assembly is in driving connection with the stirring rod assembly, a first end of the host assembly is provided with an air inlet, a second end of the host assembly is provided with an air outlet, and a heat dissipation air duct is formed between the air inlet and the air outlet. A fan assembly for forming heat dissipation airflow is arranged in the heat dissipation air duct; a wind scooper is arranged in the air outlet and corresponds to the fan assembly, and a plurality of air outlet grooves are distributed in the periphery of the side wall of the wind scooper. According to the arrangement, the air guide cover corresponding to the fan assembly is arranged in the air outlet, and the air outlet grooves are uniformly distributed in the periphery of the side wall of the air guide cover, so that the air exhaust efficiency is higher, high-temperature heat generated when the fan assembly works can be quickly and effectively reduced, and the stirring performance of the stirrer and the service life of the stirrer are further ensured.

This utility model belongs to the field of compressor technology, and specifically relates to an oil baffle assembly, rotor assembly, and compressor for a compressor. It includes a first oil baffle and a second oil baffle arranged parallel to each other and spaced apart, capable of rotating synchronously with the compressor rotor. The cylindrical enclosure has a cylindrical structure, and both the first and second oil baffles are disposed within the cylindrical enclosure. The first oil baffle, the second oil baffle, and the cylindrical enclosure are coaxially arranged. This utility model has a simple structure, effectively improves the efficiency of oil-gas separation, reduces the loss of refrigerant oil, and ensures the normal operation and service life of the compressor.

The utility model provides electronic equipment. The electronic equipment comprises a first circuit board, a vibration assembly, a sensing assembly and a functional device, the first circuit board is provided with a first air channel. The vibration assembly is installed on one side of the first circuit board and comprises a vibration structure and a first shell, the vibration structure and the surface, facing the vibration structure, of the first shell are arranged in a spaced mode, and the vibration assembly is communicated with a first cavity of the first air channel. The sensing assembly is installed on the other side of the first circuit board, the sensing assembly comprises a sensing structure, a second shell and a second circuit board, the sensing assembly is provided with a second cavity, and the second cavity is communicated with the first air channel. The functional device is connected to the first circuit board. The second circuit board is connected between the second shell and the first circuit board, the second circuit board is provided with a second air channel, and the second air channel is communicated with the first air channel. According to the embodiment of the invention, the sensing structure is electrically connected with the first circuit board through the second circuit board, so that the wiring space on the first circuit board is saved, and the area of the first circuit board can be further reduced.

The utility model relates to the technical field of medical equipment, and discloses a pipeline assembly and a sphygmomanometer, the pipeline assembly comprises a main pipeline, an air release valve, an air pump and an electromagnetic valve, the main pipeline is provided with a first pipe opening communicated with the air release valve, a second pipe opening communicated with the air pump and a third pipe opening communicated with the electromagnetic valve, and the first pipe opening is located above the second pipe opening; the second pipe opening is located above the third pipe opening so that the air pump can be located above the electromagnetic valve. According to the sphygmomanometer, the air escape valve is located at the highest position of the main pipeline, so that the difficulty that dust is sucked by the air escape valve is increased, the possibility that the dust possibly enters the air escape valve to block the air escape valve is reduced, the problem that the air escape valve is prone to being blocked is solved, and then normal work of the sphygmomanometer and the service life of the sphygmomanometer are guaranteed; the air pump is located above the electromagnetic valve, so that the air pump is separated from the bottom wall of the shell, a gap is formed between the air pump and the bottom wall of the shell, the difficulty that dust in the shell is sucked into the main pipeline through the air pump is increased, and normal work of the sphygmomanometer is further guaranteed.

The present invention relates to the field of oil and gas drilling technology, and in particular to a downhole electronic component cabin cooling system, which aims to solve the problem that downhole instruments are greatly reduced in stability, work efficiency and service life due to high temperature. The present invention includes an instrument body and a semiconductor refrigeration component; the instrument body includes a cylinder and a cover plate, a storage bin is provided on the cylinder, the semiconductor refrigeration surface of the semiconductor refrigeration component and the storage bin form an electronic component cabin to accommodate electronic components, and the cover plate is in contact with the semiconductor heat dissipation surface of the semiconductor refrigeration component; a heat dissipation channel is provided on the instrument body to allow drilling fluid to pass through and cool the cover plate. The present invention uses Peltier active cooling technology to cool the downhole electronic component cabin through semiconductor refrigeration components to ensure the normal operation and service life of electronic components. At the same time, a heat dissipation channel is provided to use drilling fluid to take away the heat transferred to the cover plate by the semiconductor refrigeration component, assist the semiconductor refrigeration component in heat dissipation, and avoid untimely heat dissipation.

The utility model discloses a flat wire winding and a flat wire motor, and belongs to the field of motor insulation. The flat wire winding includes: a conductor; a first insulating layer, wherein the conductor is coated with the first insulating layer; and the second insulating layer is arranged on the periphery of the first insulating layer, and the second insulating layer comprises an adhesive layer and a foaming layer. According to the scheme, the flat wire winding and the flat wire motor which are good in durability and high in insulating property are provided.

The utility model relates to the technical field of special gas systems, in particular to a VCR gas filter gasket sealing joint device which comprises a VCR outer ring, a VCR filter screen arranged in the VCR outer ring and a VCR connector inserted in the VCR outer ring, the VCR filter screen is used for filtering gas flowing into the VCR connector from the VCR outer ring, a first sealing ring is arranged on the inner side wall of the end, connected with the VCR connector, of the VCR outer ring, and a second sealing ring is arranged on the inner side wall of the end, connected with the VCR connector, of the VCR outer ring. A second sealing ring and a third sealing ring are arranged at the two ends of the VCR filter screen respectively, the side, away from the VCR filter screen, of the second sealing ring is tightly attached to the inner wall of the VCR outer ring, and the side, away from the VCR filter screen, of the third sealing ring is tightly attached to the side wall of the VCR connector. By the adoption of the technical scheme, the first sealing ring, the second sealing ring, the third sealing ring, the VCR connector and the VCR outer ring are matched with one another to press the VCR filter screen at the connector connecting position, the VCR filter screen cannot be separated from the working position and cannot deform to generate a gap under the condition that looseness and damage of the VCR filter screen do not occur, and the working life of the VCR filter screen under high strength is guaranteed.

The invention discloses a high-frequency grid-connected and off-grid energy storage inverter, and relates to the technical field of inverters, the high-frequency grid-connected and off-grid energy storage inverter comprises a grid-connected and off-grid energy storage inverter body, a cavity is formed in the grid-connected and off-grid energy storage inverter body, and an air inlet which is through inside and outside is formed in the rear side of the top of the grid-connected and off-grid energy storage inverter body; a protective net ring is fixedly connected in the air inlet, a cooling mechanism is arranged on the left side, close to the air inlet, of the top of the grid-connected and off-grid energy storage inverter body, and a plurality of positioning assemblies are arranged on the rear side, close to the outer wall of the cooling mechanism, of the inner wall of the cavity in a rectangular array mode. The lower sides of the left and right ends of the grid-connected and off-grid energy storage inverter body are respectively provided with a dustproof assembly, and the upper side of the interior of the cavity is provided with a heat dissipation assembly. According to the invention, the cooling mechanism is arranged to absorb heat generated by the electrical components in the cavity, and at the same time, through cooperation with operation of the heat dissipation assembly, the flowing speed of air in the cavity is accelerated, and the heat dissipation effect is improved.

The present invention discloses a fluorine-erbium co-doped tin oxide film, a preparation method thereof, and an application in the field of near-infrared electroluminescence. The preparation method comprises: introducing a mixed gas of argon and oxygen under vacuum, and using a radio frequency magnetron sputtering method to co-sputter and deposit a thin film on a fluorine-doped tin oxide target and an erbium oxide target; the mass percentage of stannous fluoride in the fluorine-doped tin oxide target is not more than 20%; in an oxygen or nitrogen atmosphere, heating the film obtained by co-sputtering deposition to above 200°C for high-temperature heat treatment, and cooling to obtain a fluorine-erbium co-doped tin oxide film. After the film of the present invention is used to make an electroluminescent device, under the condition of applying a reverse bias, strong electroluminescence can be achieved based on the electron impact ionization effect occurring in the space charge region.

An electric heating structure of a hot blast stove comprises a plurality of electric heating units connected in series, a circulating fan, a hot blast heat exchanger, a high-temperature air duct connected between the electric heating units and the hot blast heat exchanger, and a low-temperature air duct connected between the hot blast heat exchanger and the circulating fan; an air outlet of the circulating fan is connected with a low-temperature air inlet of the electric heating unit; the circulating fan is a high-temperature resistant centrifugal fan; an air inlet of the circulating fan is connected with one end of the low-temperature air duct, and an air outlet of the circulating fan is connected with the low-temperature air inlet of the electric heating unit; the hot blast heat exchanger is a shell-and-tube heat exchanger made of finned tubes; a heat releasing medium flowing through a shell side of the hot blast heat exchanger is hot blast air driven by the circulating fan; a heat absorbing medium flowing through a tube side of the hot blast heat exchanger is water, CO2, air, steam, heat conducting oil, and a medium capable of flowing in a pipe and conducting heat; an air outlet of the hot blast heat exchanger is connected with the other end of the low-temperature air duct, and an air inlet is connected with a high-temperature air outlet of the electric heating unit through the high-temperature air duct.

The utility model relates to solenoid valve technical field, concretely is a kind of remote control regulating valve, including shell, valve body, telescopic link, upper bolt and lower bolt, shell and valve body connect, and the mounting flange is formed on the shell and valve body connecting surface, the valve rod bottom end of valve body is provided with plunger, plunger can cooperate with the valve seat in shell, and the mounting groove is formed on the opposite surface of mounting flange, telescopic link is located in the mounting groove, and two ends are connected mounting flange respectively, upper bolt and lower bolt are arranged on the mounting flange of valve body, shell respectively, and the screw hole that can cooperate with upper bolt is formed on lower bolt, when pipeline leads to pressure increase due to icing, the mounting flange of valve body and shell can separate protection valve rod and plunger to avoid component damage, and pressure can be released to the mounting flange separation place, help to guarantee working life, avoid icing to cause valve damage, with practical significance and popularization value, expected to produce good economic benefits.

The utility model belongs to the technical field of plant lighting, and particularly discloses a greenhouse aviation aluminum heat dissipation light supplement lamp which comprises a lamp shell, a supporting rod is arranged on the top of the lamp shell, and an adjusting assembly is arranged between the lamp shell and the supporting rod. The adjusting assembly comprises two electric push rods, the two electric push rods are fixedly connected with the bottom end of the supporting rod, the output ends of the two electric push rods are fixedly connected with the fixing plate, fixing rods are arranged at the two ends of the bottom of the supporting rod, and the two ends of the fixing plate are fixedly connected with limiting blocks; the height of the light supplementing lamp can be conveniently adjusted according to actual requirements through the arrangement of the adjusting assembly, the height of the light supplementing lamp can be adjusted conveniently, the height of the light supplementing lamp can be adjusted conveniently, the height of the light supplementing lamp can be adjusted conveniently, and the light supplementing lamp is convenient to use. Compared with manual operation, the illumination distance adjusting device is more convenient and efficient, and manpower and time are saved.

The invention discloses a double-filter exhaust and oil supply system, and belongs to a diesel vehicle engine oil supply filtering system, the double-filter exhaust and oil supply system comprises a double-filter exhaust and oil supply system, the double-filter exhaust and oil supply system comprises a double-filter assembly, an oil tank and an engine, the double-filter assembly comprises a main shell, and the main shell is provided with an oil inlet and an oil outlet; a first filter is fixedly installed at the inner bottom of the main shell, a second filter is fixedly installed on one side of the inner top of the main shell, an electric pump is fixedly installed on the other side of the inner top of the main shell, and an exhaust one-way valve is fixedly arranged at the inlet end of an oil-gas mixed fuel oil pipeline of the electric pump. The problem of excessive gas accumulation in the engine can be avoided, the service life of the diesel vehicle engine is guaranteed, the oil suction resistance of the oil delivery pump after the engine is started is reduced, the power effect of the engine is guaranteed, and the use cost of the whole double-filter exhaust and oil supply system is saved.