36results about How to "Achieve work performance" patented technology

The invention relates to a broadband double-line polarization dipole antenna array used for receiving and transmitting a radio wave, which comprises at least two double-polarization dipole radiation elements, a conductor reflector plate and a feed system. The double-polarization dipole radiation element comprises two T-shaped dipole antenna units, one dipole antenna unit is vertically arranged in the middle of the other dipole antenna unit, and the polarization directions of antenna units are respectively parallel to two polarized states of the antenna array; the center distance between the two T-shaped dipole antenna units, one of which is vertically arranged in the middle of the other dipole antenna unit, is half the distance between radiation elements in the corresponding direction; the double-polarization dipole radiation element is the sequential arrangement array of a rectangular grid or the inverted sequence array of a triangle grid. The invention realizes a broadband double-line polarization antenna array which has the advantages of high isolation, low cross polarization, simple structure, and flexible and convenient feed, and at the same time has the engineering potential of realizing wide angle scan double-line polarization array.

The invention discloses a water replenishing method for photovoltaic panel cleaning machines. The water replenishing method is suitable for a water replenishing truck and includes the steps of receiving water replenishing commands of at least one photovoltaic panel cleaning machine, wherein the water replenishing commands carry water replenishing position information; and according to the water replenishing position information and preset driving paths, driving the water replenishing truck to the photovoltaic panel cleaning machines pointed by the water replenishing position information to replenish water. The invention further discloses the water replenishing truck. The paths of replenishing the water for the photovoltaic panel cleaning machines by the water replenishing truck are planned reasonably, the driving distance of the water replenishing truck is shortened, and the energy consumption is low. The water replenishing truck has the automatic water replenishing ability, the water replenishing task of photovoltaic matrixes and the multiple photovoltaic panel cleaning machines is completed in a full-automatic mode, unmanned operation is realized, the manpower input is reduced, and the cleaning cost is saved.

The invention discloses an offline working method and device of an auxiliary diagnosis system, terminal equipment and a medium. The method comprises the following steps: when a network state meets a first preset condition, starting an offline working mode, and obtaining local cache data; generating off-line data in response to the operation information of the local cache data, and respectively storing the off-line data according to the type and the generation time of the off-line data; and when the network state meets a second preset condition, synchronizing the offline data to the server according to the category and the generation time of the offline data, and exiting the offline working mode. According to the technical scheme provided by the embodiment of the invention, the diagnosis service is carried out based on the local cache data in the offline working mode, and the offline data corresponding to the diagnosis service is uploaded to the server after the network is recovered, so that the normal work of the auxiliary diagnosis system can be prevented from being greatly influenced by a poor network state or network disconnection, and therefore, the effect of supporting the normal work of the auxiliary diagnosis system in an offline state is realized.

The invention relates to an intelligent friction pendulum shock insulation support, which comprises an upper seat plate, a spherical pendulum, a lower seat plate and an elastic body, wherein the top end of the upper seat plate is used for being connected with a main bridge and bearing the main bridge; the top end of the spherical pendulum is slidably connected with the upper seat plate, and the bottom end can swing on the lower seat plate; the elastic body is connected to the bottom end of the lower seat plate and used for being connected to a pier; a strain sensor is arranged on the elastic body and is used for measuring the strain of the elastic body; an angular velocity measuring instrument is arranged on the spherical pendulum and used for measuring the rotation angular velocity of thespherical pendulum; a displacement measuring device is arranged on the upper seat plate or the spherical pendulum and used for measuring the horizontal displacement D of the upper seat plate or the spherical pendulum; a controller is connected with the strain sensor, the angular velocity measuring instrument and the displacement measuring device, and is used for calculating to obtain a vertical load W borne by the shock insulation support according to the strain of the elastic body; and the horizontal stress F of the support is calculated based on a preset calculation formula according to W and D, and real-time monitoring of the working performance of the friction pendulum shock insulation support is achieved.

The invention relates to a dual-notch miniaturized ultra-wideband microstrip antenna with electrically adjustable frequency. The dual-notch miniaturized ultra-wideband microstrip antenna comprises a dielectric substrate, a microstrip feeder line and a radiation patch, the micro-strip feeder line and the radiation patch are loaded on the front surface of the dielectric substrate; the radiation patch is provided with an arc-shaped edge, and one end, provided with the arc-shaped edge, of the radiation patch is connected with the microstrip feeder line; the system further comprises a floor. The floor is of a rectangular structure and is loaded at the lower position of the reverse side of the dielectric substrate, the length of the floor in the horizontal direction is equal to that of the dielectric substrate, and the height of the floor in the vertical direction is equal to that of the microstrip feeder line, so that three sides of the floor coincide with three sides of the dielectric substrate; a notch groove is formed in the top edge of the floor, and symmetrical arc-shaped chamfers are arranged at the two ends of the top edge of the floor. The antenna size and cost can be reduced, and the antenna is simple in structure, stable in radiation performance and easy to integrate.

The present invention relates to a heat conduction rake of vacuum rake dryer. A rake shaft is arranged in the dryer, a plurality of radially arranged rake plates are distributed in the rake shaft in the axial direction, the rake shaft and the rake plates communicate with each other and are hollow to form a cavity, and a thermal medium is introduced into the cavity; and the rake shaft and the rakeplates are divided into inner layers and outer layers by partition plates, a liquid medium is arranged in the outer layers in a communication manner, and a gas medium is arranged in the inner layer ina communication manner. According to the heat conduction rake, a traditional rake rod is changed into the structural form of the rake plates, the heat transfer area is increased, the heat efficiencyis improved, the generation of dirt on an inner cylinder wall is avoided, the quality of the dried product is improved, the mixing is uniform, and the overall drying quality is improved; and meanwhile, a plurality of scraping plates are arranged on the edges of the outer sides of the rake plates, materials can be further disturbed by the scraping plates, the materials on the inner wall of the dryer are scraped by the scraping plates at the same time, the scraping plates are elastically arranged, abrasion of the scraping plates and the inner wall of the dryer is reduced, and the service life ofthe scraping plates is prolonged.

The invention relates to the field of optical fiber communication, in particular to a double-port Faraday rotating mirror and a circulator. A light beam enters one end of a double-port Faraday rotating mirror, emerges from the other end after the polarization direction deflects for 45 degrees, is transmitted to a following reflection-type light path system, is reflected, then enters the double-port Faraday rotating mirror and emerges from an original incidence port after the polarization direction deflects again for 45 degrees, 90-degree deflection can be conducted on the polarization direction of the light beam, and the working effect same as a single-port Faraday rotating mirror is achieved. The light path of the double-port Faraday rotating mirror is symmetrically designed, light path transmission has no direction selectivity, two ends can serve as light beam incidence ends, the influence on the Faraday rotating mirror of chromatic dispersion and temperature characteristics is eliminated, the working effect same as the single-port Faraday rotating mirror is achieved is achieved, and the double-port Faraday rotating mirror can be installed in a middle light path section and is suitable for different light path systems.

The invention relates to the field of vulcanizing equipment, in particular to an anti-dislocation device for a vulcanizing machine forming mold. An upper plate mold and a bottom plate mold both for molding a workpiece are separately and fixedly arranged on the vulcanizing machine; a medium plate mold which matches with both the upper plate mold and the bottom plate mold is movably arranged betweenthe upper plate mold and the bottom plate mold in push-and-pull mode; a positioning opening groove A is formed in one side of the medium plate mold; a guiding column, positioned at one side of the positioning opening groove A, is hinged with a positioning plate matching with the positioning opening groove A; the positioning plate is positioned right above the positioning opening groove A when themedium plate mold is in matching state with the upper plate mold and the bottom plate mold; and a proximity switch used for controlling start-stop state of a jacking hydraulic cylinder is arranged below one end, away from the medium plate mold, of the positioning plate. By means of the anti-dislocation device for the vulcanizing machine forming model, the occurrences of failure of hot melting molding of a rubber workpiece and damage of the mold due to the fact that the medium plate mold is not pushed in place in a traditional art are avoided, and the work efficiency is greatly improved.

The invention relates to a brake system (1) of a motor vehicle. The brake system for the motor vehicle has at least a first wheel brake (5, 7) and at least a second wheel brake (6, 8). A first inlet valve (20, 22) is fluidically connected, on the one hand, to the first wheel brake (5, 7), and, on the other hand, to a brake pressure source (4), and a second inlet valve (21, 23) is fluidically connected, on the one hand, to the second wheel brake (6, 8) and on the other hand, to the brake pressure source (4). In this case, a switching valve (34, 35) is provided, which fluidically connects the one fluid outlet (36, 37) of the second inlet valve (21, 23) in a first switching position to the second wheel brake (6, 8) and in a second switching position to the first wheel brake (5, 7). Additionally, the invention also relates to a method for operating the brake system for the motor vehicle.

The invention discloses an agricultural mechanical seeding device capable of achieving synchronous seeding and material scattering and used for mechanical equipment. The agricultural mechanical seeding device comprises a base body, a torsion spring, a material guide hole and a discharging channel, the upper end of the left side of the base body is fixedly connected with a first material collecting box, a connecting shaft is mounted at the inner side of the upper end of the base body in a penetrating manner, and the outer side of the connecting shaft is fixedly connected with a movable disc; and the movable disc is connected with the inner side of the base body, a first gear is fixedly connected to the outer side of the shaft end of the movable disc, and a second gear is connected to the inner side of the base body through a bearing. According to the agricultural mechanical seeding device capable of achieving synchronous seeding and material scattering and used for the mechanical equipment, in the rotating process of the movable disc, the half-gear-shaped first gear in butt joint with the movable disc drives the meshed second gear with a smaller diameter to synchronously and directionally rotate along with the movable disc, and a connecting piece is driven by the first pull rope in butt joint to perform reciprocating connection treatment along a second material collecting box, so that the working effect of automatic fertilizer spreading is realized, and the working states of sowing and material spreading can be synchronously realized.

The invention discloses a sectional pressure relief type filling valve and a filling method thereof. The sectional pressure relief type filling valve comprises a valve body, wherein the valve body is provided with a feed port, a discharge port, a first exhaust passage and a second exhaust passage; a control valve is arranged at the discharge port; the first exhaust passage is communicated with a sectional pressure relief control device; the second exhaust passage is communicated with the outside atmosphere; a first control switch for controlling the first exhaust passage to open or close is arranged in the first exhaust passage; and a second control switch for controlling the second exhaust passage to open or close is arranged in the second exhaust passage. The two exhaust passages can be successively opened by orderly pressing the two control switches, which realizes that the gas pressure in the bottle body sectionally drops, thereby ensuring pressure difference for pressure relief in each section is kept within a proper range and the filled material has stable filling quality. Therefore, the invention makes medium temperature filling possible by increasing back pressure and filling temperature, and a bottle warming machine in low temperature filling can be omitted by adopting the medium temperature filling, thereby achieving the effects of energy saving and environmental protection.

The invention discloses a stirring device for desulfurization and denitrification. The device comprises a base, a base is assembled at the upper end of the base, and a stirring cavity is movably formed in the base. According to the stirring device for desulfurization and denitrification, through cooperation of a first driving wheel and a reset spring, a transmission rod drives a swing rod to slidein a reciprocating mode during sliding, so that a base plate drives stirring blades to swing, and the working effect that the stirring blades swing while rotating is achieved, a second driving wheelis arranged to be intermittently engaged with a sliding rod, and the gravity effect of the stirring cavity is matched, so that the sliding rod drives the stirring cavity to ascend and descend, the vibration stirring effect of the stirring cavity is achieved, and materials are effectively prevented from being deposited at the bottom of the stirring cavity, moreover, the two sides of the stirring cavity are slidably mounted with the guide rods through the assembly seats, and the vertical limiting springs are mounted at the lower ends of the assembly seats, so that the stirring cavity is lifted stably, and shaking generated in the lifting process of the stirring cavity is reduced.

The invention discloses a self-adaptive physical therapy pillow with a pressure relieving function for neurology department and a pressure relieving method of the self-adaptive physical therapy pillow. The self-adaptive physical therapy pillow comprises a pillow body, a micro motor, a latex layer, transmission shafts and an electric shock heating switch, wherein a supporting cushion layer is mounted at the middle end of the pillow body in a nested mode, and a containing groove is formed in the inner side of the middle end of the pillow body and connected with the supporting cushion layer; and a micro motor is mounted at the lower end of the pillow body in a nested mode, and a movable part is mounted at the output end of the micro motor in a nested mode. According to the self-adaptive physical therapy pillow with the pressure relieving function for the neurology department and the pressure relieving method of the self-adaptive physical therapy pillow, as the head of a user leans against the outer end of the supporting cushion layer, the pressed supporting cushion layer moves downwards to apply pressure to a contacted bonding air bag, and then air is supplied to a corrugated pipe at the tail end through an air conveying through pipe, so that two sets of sponge pieces making contact with the corrugated pipe are pushed to get close inwards, then patients with different head types are softly attached and wrapped, the ears of the patients are semi-closed, and the situation that the patients hear outside noise in the cultivating process is avoided.

The invention discloses a grooving machine with blades easy to replace. The grooving machine comprises a dust suction box, a second protective cover and a device body, wherein the dust suction box isarranged at the inner top end of the device body, a fan is arranged at the position, above an activated carbon filter screen, of the inner top end of the dust suction box, a positioning lamp is arranged at the top end of a first protective cover, a second handle is arranged at the position, on one side of a connecting pipe, of the top end of the device body, a baffle is arranged between the innerwalls of the two sides of the device body, a water pump is arranged at the inner bottom end of a water tank, the second protective cover is arranged on the inner side of the first protective cover, and the blades are arranged on the outer wall of a rotary shaft. According to the grooving machine, the dust suction box is arranged at the inner top end of the device body, the function of dust suctionin the grooving process is achieved, so that the health of workers is prevented from being harmed by dust, and the grooving machine is easy to popularize and use.

The invention discloses a rainwater mud settling well, and relates to the field of sewage discharge. The rainwater mud settling well comprises a sand-water separation well chamber, a water inlet pipe, a water outlet pipe, a venthole and a mud settling well chamber, wherein the sand-water separation well chamber comprises a first part and a second part, the first part is in a straight cylinder shape, the second part is in a cone shape, and the second part is located at the lower side of the first part; the water inlet pipe is arranged on one side of the first part, the water inlet pipe communicates with the sand-water separation well chamber, and the axis of the water inlet pipe does not penetrate through the center of the first part, so that water flow entering the sand-water separation well chamber through the water inlet pipe forms rotational flow; the water outlet pipe is arranged above the water inlet pipe and communicates with the sand-water separation well chamber; the venthole is formed in the top wall of the sand-water separation well chamber; the mud settling well chamber is arranged below the sand-water separation well chamber, a mud containing barrel is movably arranged in the mud settling well chamber, and an opening in the upper end of the mud containing barrel communicates with the lower end of the second part; and rotational flow is formed in the sand-water separation well chamber, solid impurities are separated through the centrifugal effect and collected into the mud containing barrel, and the effect of removing the solid impurities is good.

The invention relates to the technical field of the circuit board, especially to a hard circuit board having a circular substrate. A plurality of annular welding plates distributed in a concentricity mode are arranged uniformly at the upper surface of the circular substrate; and a plurality of welding points are arranged uniformly at a transition region of each two adjacent annular welding plates. In addition, a plurality of reinforced ribs that are arranged in a radial mode are arranged at the multiple annular welding plates distributed in a concentricity mode. The provided hard circuit board has advantages of high structural strength and low manufacturing cost.

The invention relates to the technical field of grinding devices, and discloses an anti-blocking grinding machine conveying device capable of achieving uniform feeding. The anti-blocking grinding machine conveying device comprises a shell, the side face of the outside of the shell is movably connected with a motor, and the output end of the motor is fixedly connected with a first transmission gear. The side, away from the motor, of the first transmission gear is fixedly connected with a conveying shaft, the surface of the first transmission gear is engaged with a second transmission gear, andthe circle center of the second transmission gear is fixedly connected with a first rotary shaft. The surface of the second transmission gear is engaged with a third transmission gear, and the circlecenter of the third transmission gear is fixedly connected with a transmission shaft. The motor drives the conveying shaft to rotate, grains in a feeding groove evenly pass through a stirring groove,and then enter a grinding device below through a discharging hole, and therefore feeding can be more uniform, the grinding load of the grinding device is relieved, and the grain grinding effect is better.

The invention belongs to the technical field of antennas, and particularly relates to a dual-phase center height-measurement frequency scanning antenna. The dual-phase center height-measurement frequency scanning antenna comprises a dielectric block and two same-structure receiving antennas, wherein the two receiving antennas are fixedly connected, the dielectric block is fixedly connected with the two receiving antennas, each receiving antenna comprises a slow wave line assembly and two wing plates, a receiving hole is formed in an inlet of a straight waveguide cavity of the slow wave line assembly, the two wing plates are respectively arranged at two sides of the receiving hole, a waveguide converter is arranged at one end part of the slow wave line cavity of the slow wave line assembly,the two receiving antennas are vertically arranged in parallel, the slow wave line assemblies of the two receiving antennas are fixedly connected, and the dielectric block is fixedly arranged on thewing plates of the two receiving antennas. By the antenna, a relatively large pitching measurement angle range is achieved on the premise of no influence on the working performance of a single-phase central frequency scanning antenna, and the pitching measurement demand of actual engineering application is satisfied.

The invention brings forward an open-ended ridge waveguide array antenna integrated with internal correction channels. According to the antenna, coaxial connectors arranged at the bottoms of open-ended waveguides are used for realizing feed; fundamental mode broadband conversion between the coaxial line and the ridge waveguide is realized by gradually-changed stair-stepping transition matching segments; rectangular open-ended waveguides with square ridges radiate electromagnetic waves to space; and the cross section dimensions of the open-ended waveguides are compressed fully to obtain two-dimensional wide-angle scanning features. Choke grooves are formed between adjacent antenna units; coupling grooves are arranged at the bottoms of the open-ended waveguides longitudinally to connect correction waveguides, thereby forming internal correction channels. One correction waveguide can be coupled with two adjacent columns of antenna units; and correction waveguide ridges and coaxial connectors are arranged in the correction waveguides to realize transmission and interfaces of the internal correction signals. Compare with the prior art, the antenna has advantages of broad band, two-dimensional wide-angle scanning , small size, low weight, and high reliability and integration and the like; and the internal correction function of a small-unit-space phased-array antenna is realized.

The invention discloses a wind turbine generator capable of resisting strong wind. The wind turbine generator is characterized in that a fan impeller and a tower frame are specially designed, so that the performance of the wind turbine generator of still normally working in the strong wind environment is guaranteed. The wind turbine generator comprises an impeller, a hub, a machine room and a tower frame; the impeller is installed on the side surface of the hub; one end surface of the hub is connected with one side surface of the machine room; the top end of the tower frame is connected with the bottom surface of the machine room; the impeller is provided with an impeller mounting seat, an impeller connecting hole and impeller mounting seat holes; and the hub is in a triangular cone shape and is provided with a hub mounting flange and hub impeller mounting holes. As the impeller is installed at a certain inclination, larger bending stress cannot be applied to the impeller when the wind power is too large, and thus the action of resisting the strong wind is reached. The designed wind turbine generator realizes the effect of still working in the strong wind environment, has the characteristics of high power generation efficiency, good stability, long service life and the like and is suitable for practical application and popularization.

The invention discloses a lifting conveying mechanism, which comprises a frame, a first conveying mechanism and a second conveying mechanism. The first conveying mechanism and the second conveying mechanism are mounted in the frame, capable of moving up and down and partitioned through a partition plate. Therefore, the lifting conveying mechanism has advantages that double-line operation effects can be achieved, so that production efficiency and automation are improved, and labor intensity of workers is relieved; in addition, the mechanism is compact in structure, so that space saving is realized.

The invention relates to a shock absorber piston structure based on a variable damping throttle valve, which comprises a piston body composed of an upper piston and a lower piston. There are two sets of variable damping throttle valves installed between them. The variable damping throttle valve includes a cylinder and a valve stem. The two ends of the cylinder are respectively provided with a base and an end cover. The magnetorheological material is sealed in the cylinder. One end of the valve stem extends into the cylinder from the end cover, and is slidably matched with the base. An iron core is fixed on the valve stem, and a coil is wound on the iron core. The other end of the valve stem is fixed with a The valve head of the damping channel, a spring is arranged between the valve head and the end cover, the valve heads of each variable damping throttle valve respectively extend into the corresponding damping channel, the valve heads of two groups of variable damping throttle valves are installed in the opposite direction. It adjusts the valve opening speed point of the piston by adjusting the electromagnetic field strength in the variable damping throttle valve, and optimizes the throttling performance of the shock absorber.

The invention relates to the technical field of grinding devices, and discloses a grinder feeding device that prevents clogging and can evenly load materials, including a casing, the outer side of the casing is movably connected with a motor, and the output end of the motor is fixedly connected with a No. 1 transmission gear, the side of the No. 1 transmission gear away from the motor is fixedly connected with the feeding shaft, the surface of the No. 1 transmission gear is meshed with the No. 2 transmission gear, and the center of the No. 2 transmission gear is fixedly connected with a No. 1 rotating shaft , the surface of the No. 2 transmission gear is engaged with the No. 3 transmission gear, and the center of the circle of the No. 3 transmission gear is fixedly connected with a rotating shaft. The motor drives the rotation of the feeding shaft, and the grain inside the feeding trough passes through the mixing tank evenly, and then enters the inside of the grinding device below through the discharge hole, so as to achieve a more uniform feeding and reduce the grinding burden of the grinding device. The effect of making the effect of grain grinding better.

The invention relates to the related technical field of boiler accessories, and discloses a boiler chimney capable of preventing scaling from affecting smoke exhaust efficiency, the boiler chimney comprises a chimney body, a protective exhaust ring is installed on the inner wall of the chimney body, smoke exhaust holes are formed in the protective exhaust ring in an array mode, the smoke exhaust holes are communicated with a control valve pipe, the control valve pipe is provided with an exhaust port, and the exhaust port is communicated with the chimney body. The chimney body is provided with a top end protection device, the top end protection device comprises a mounting side shell, and the mounting side shell is detachably provided with a carrying top shell; according to the boiler chimney capable of avoiding the influence of scaling on the smoke exhaust efficiency, through the arrangement of the top end protection device, the detachable carrying top shell and the mounting side shell form a top end protection shell with the rainwater shielding and protecting effect on the chimney opening end, and the barrel wall treatment device is carried in the carrying top shell; the cylinder wall processing device is used for being matched with the internal structure of the chimney to effectively clean the inner wall of the chimney.

The invention relates to a broadband double-line polarization dipole antenna array used for receiving and transmitting a radio wave, which comprises at least two double-polarization dipole radiation elements, a conductor reflector plate and a feed system. The double-polarization dipole radiation element comprises two T-shaped dipole antenna units, one dipole antenna unit is vertically arranged inthe middle of the other dipole antenna unit, and the polarization directions of antenna units are respectively parallel to two polarized states of the antenna array; the center distance between the two T-shaped dipole antenna units, one of which is vertically arranged in the middle of the other dipole antenna unit, is half the distance between radiation elements in the corresponding direction; the double-polarization dipole radiation element is the sequential arrangement array of a rectangular grid or the inverted sequence array of a triangle grid. The invention realizes a broadband double-line polarization antenna array which has the advantages of high isolation, low cross polarization, simple structure, and flexible and convenient feed, and at the same time has the engineering potentialof realizing wide angle scan double-line polarization array.

The invention aims to provide a variable flow type ejector for a fuel cell based on an electromagnetic control valve, the variable flow type ejector comprises an ejector main body, an annular main and auxiliary type nozzle main body and a main air channel electromagnetic control valve, and the ejector main body internally comprises a suction chamber, a mixing chamber, a diffusion chamber and a mixed gas outlet which are communicated in sequence; an annular main and auxiliary nozzle body is arranged between the suction chamber and the end of the ejector body and comprises an annular main nozzle and an annular auxiliary nozzle, an ejection flow main air channel is formed in the annular main nozzle, an ejection flow auxiliary air channel is formed between the annular auxiliary nozzle and the annular main nozzle, and a main air channel electromagnetic control valve is arranged in the ejection flow main air channel. The circulating sectional area of hydrogen at the inlet is controlled by controlling on-off of the electromagnetic valve, so that small-flow circulation of hydrogen under a small load and large-flow circulation of hydrogen under a large load are realized, the working performance of the ejector is automatically adjusted, and the requirement of a fuel cell on hydrogen circulation under all working conditions is met.

The invention discloses a protective municipal pipeline laying device with a pressure relief structure. The protective municipal pipeline laying device with the pressure relief structure comprises a base, an embedded part, a movable supporting seat, a containing groove and a buffer air cushion, wherein the embedded part is fixedly connected to the upper end of the base; the movable supporting seat is installed at the outer end of the embedded part in an embedded mode; a protective layer is connected to the upper end of the movable supporting seat in an adhesive mode; the inner end of the protective layer is connected with a first air bag in an adhesive mode; and a first air supply hose is installed at the outer end of the first air bag in a penetrating mode. According to the protective municipal pipeline laying device with the pressure relief structure, a cement pipe fitting is lowered to the upper end of the movable supporting seat, and the spherical first air bag on the surface is stressed in advance and deforms, so that the supporting area is enlarged to preliminarily support the cement pipe fitting; and meanwhile, a second air bag communicated with the spherical first air bag expands accordingly, and the cement pipe fitting is subjected to secondary supporting work in cooperation with rubber abutting pieces pressed to deform for supporting, so that pressure relief supporting work is further conducted on the pressure generated when the cement pipe fitting is put down.

The invention relates to the field of fuel oil engines, in particular to an oil supply technology adopting intake pipe injection and in-cylinder direct injection, and discloses a fuel oil high-temperature vaporization oil supply system of a fuel oil engine. In the system, heat discharged by an engine exhaust passage is used for heating a high-temperature evaporation chamber, and fuel oil is instantly vaporized into oil vapor by the heat after being injected into the high-temperature evaporation chamber, and then enters an air cylinder to be combusted to act. The high-temperature evaporation chamber is arranged in the center of the top end of an engine air cylinder cover and located in the middle of the exhaust passage, an evaporation chamber oil injector is arranged at the top of the high-temperature evaporation chamber, an intake pipe oil injector is arranged on an intake pipe, oil injection circuits of the two oil injectors are connected with an oil injection circuit converter, and the line inlet end of the oil injection circuit converter is connected with an oil injection power supply of an engine control computer. When the system works, the high-pressure atomized fuel oil is instantaneously evaporated and vaporized under the action of the heat when being injected to the inner wall of the high-temperature evaporation chamber, and the oil vapor generated after vaporization enters the air cylinder at the lower end to be ignited and combusted to act, so that the working performance of high-temperature vaporization oil supply is realized.