33results about How to "Quick impact" patented technology

The invention discloses a square pipe cutting device. The square pipe cutting device comprises a holding component, a cutter body and a cutter driving device, wherein the cutting body is arranged in the holding component, and a square pipe clamped in the holding component is cut under the control of the cutter driving device; the holding component comprises a holding body, and the holding body is provided with a cutter moving guide groove, and the bottom part of the holding body is further provided with a cutter cutting through groove; the middle between the cutter moving guide groove and the cutter cutting through groove is hollow for holding the square pipe to be cut; a first clamping square block and a second clamping square block for supporting the square pipe to be cut are respectively arranged on both sides of the cutter cutting through groove, and the first clamping square block and the second clamping square block are in a vertical V form along the axial direction of the square pipe cutting device; a cutter bit of the cutting cutter body is correspondingly formed to be a vertical V, thus the cutter point is aligned to the edge of the square pipe to be cut when the square pipe is cut. According to the square pipe cutting device, the square cutting can be rapidly completed with saved labor.

The invention relates to a numerically-controlled multi-point side-pressing frame hydraulic machine, which comprises a workbench and a sliding block, wherein a hydraulic cushion is arranged in the workbench; the hydraulic cushion is driven by a plurality of hydraulic cushion oil cylinders which are uniformly distributed in the workbench; the pressure of each hydraulic cushion oil cylinder can be independently controlled by a hydraulic oil circuit of the hydraulic cushion; the sliding block is driven by a sliding block oil cylinder; and a hydraulic buffering oil circuit and a fast pressure-relief oil circuit are arranged on the hydraulic oil circuit of the sliding block oil cylinder. The numerically-controlled multi-point side-pressing frame hydraulic machine has the advantages that: the pressure of each hydraulic cushion oil cylinder can be adjusted according to practical situations during pressing of a product; the product which is subjected to multi-point pressing is high in quality and low in rejection rate; under the action of the hydraulic buffering oil circuit, when the sliding block moves down at a lower speed, impaction or vibration cannot occur and the speed can be changed flexibly; and when the fast pressure-relief oil circuit performs pressure relief of the sliding block oil cylinder, short pressure-relief time, smooth pressure relief and no hydraulic impaction are ensured by secondary pressure relief.

The invention discloses air inflation type deodorization double-layer heating type cold and hot optional tea rolling equipment. Air inflation holes are formed uniformly in a rolling disc; an air cavity disc is arranged at the lower end of the rolling disc; an air cavity groove is formed in the air cavity disc; the air inflation holes are communicated with the air cavity groove; the air cavity groove is communication with an air source by air supply holes in the bottom surface; a retaining ring is arranged on the periphery of the rolling disc; an annular blow-off groove is formed between the retaining ring and the rolling disc; the annular blow-off groove is communicated with the air cavity groove; a pressure cap is arranged at the upper end of a rolling barrel; an air cylinder is arrangedin the center of the pressure cap; an arc-shaped reflection disc is arranged at the lower end of the air cylinder; a carbon fiber electric heating tube is arranged in the reflection disc; a transparent pressure plate is arranged at the front end of the reflection disc; exhaust holes are formed in the pressure cap; a displacement sensor is arranged on the air cylinder; an electric heating wire is arranged in the rolling disc. According to the equipment, the tea rolling quality can be improved, pressure regulating type rolling is performed fast and automatically, double-layer heating rolling isachieved, and the taste of tea caused by heaping for yellowing can be removed.

The invention discloses a hydraulic drive type ditch garbage intercepting device for a water conservancy project. The hydraulic drive type ditch garbage intercepting device comprises a frame, a reciprocating lead screw, an impeller and a clamping block, a filter screen is arranged at the inner side of the frame, a first bevel gear is in key connection with the lower end of the reciprocating lead screw, a sliding ring is arranged at the inner side of a first sliding groove, and a sliding block is arranged at the inner side of a second sliding groove; and a confluence cylinder is arranged at theouter side of the filter screen, a second bevel gear is in shaft connection with the interior of the lower end of the frame, a movable side plate is in shaft connection with the outer side of the frame, a supporting frame is arranged at the upper end of the frame, a pull rope is connected between the clamping block and a connecting shaft, a ditch body is arranged at the outer side of the frame, and limiting holes are formed in the surface of the outer wall of the ditch body. according to the hydraulic drive type ditch garbage intercepting device for the water conservancy project, interceptedgarbage can be automatically removed from a ditch through hydraulic power, the situation that normal water conveying of the ditch is affected due to blockage of the device is avoided, and meanwhile the intercepted garbage can be conveniently collected and treated in the later period.

The invention belongs to the technical field of antennas, particularly relates to a method for calculating a wing shielding effect based on a diffraction principle, and discloses a method for calculating a wing shielding effect based on a diffraction principle. The core of the design method is that the UTD is simplified by an electromagnetic propagation shielding algorithm based on a Fresnel zonetheory, and the complexity of ray tracing is reduced. Then, on the basis, establishing an electromechanical coupling model of the shielded conformal array in the presence of structural errors; by means of the method, the influence of the shielding object on the array far field can be calculated more quickly and accurately, and reference is provided for array layout design under next shielding. Themethod can be used for calculating the influence of the fixed shielding object on the carrier on the array conformal on the body of the large carrier. The method is suitable for calculating the influence of the fixed shielding object on the carrier aircraft on the conformal array located on the carrier aircraft on the far-field directional diagram.

The invention relates to a tire-type quick impact testing machine. The tire-type quick impact testing machine comprises an impact device, an accelerating device, a lifting device, a fixed ejection weight balance device, a buffering device and an impact testing platform; the impact device comprises a stepped shaft I, tires I and II, bearings I, a support guide rod and a straight spur gear I; the accelerating device comprises a speed variation device, a spline shaft, a slippage gear, a shifting fork device, a support I, a motor I, lower and upper box bodies, bearings II, III and IV, cone pulleysI and II, input shafts I and II, speed variation steel balls, stepped shafts II and III, bearing pedestals I and II, straight spur gears II, bevel gears I and II, an incomplete gear, a rocker, a speed variation connecting rod, a speed variation crank and a small motor; the lifting device comprises a crankshaft, connecting rods, telescopic rods and a motor II; the buffering device comprises buffering outer and inner shells, a spring I, balls and a buffering transparent cover; the fixed ejection weight balance device comprises a balancing weight, a fixed ejector and a support II. The tire-typequick impact testing machine has the advantages of being flexible and capable of achieving quick speed changing and lifting.

The invention provides a power quality comprehensive optimization system for a low-voltage distribution network power alternative scenario and a control method thereof. The power quality comprehensiveoptimization system in the present invention includes a passive reactive power compensation unit and multiple multi-objective power quality optimization units. The passive reactive power compensationunit includes a passive co-complementary capacitor, and one or two of a sub-complementary capacitor, and an interphase bridging capacitor. In view of the power consumption characteristics of the power alternative scenario, the system can effectively manage various problems such as three-phase imbalance, reactive power, and harmonics of power quality, and achieve multi-objective comprehensive optimization with a fast dynamic response under high-power and high-speed impact conditions so as to improve power supply reliability and power quality. In addition, the control method of the system can automatically select the optimal operating mode according to the real-time operating state of the system, that is, minimizes the system loss as much as possible on the premise of ensuring a system governance effect, and is an efficient and energy-efficient control management method.

The invention discloses an anti-blocking device for a water inlet pipeline of an irrigation water supply pump and a control method of the anti-blocking device, and aims to provide an anti-blocking device which has a good anti-blocking effect, realizes judgment of grindable or non-grindable impurities by taking a pressure difference value detected by two pressure detectors as a regulation and control standard and matching with the structural arrangement of an adjusting pipeline, and improves the accuracy of the impurities. According to the technical scheme, the anti-blocking device is characterized in that an adjusting pipeline is arranged, one end of the adjusting pipeline is communicated with the water inlet pipeline, the other end of the adjusting pipeline is in a closed state, and the adjusting pipeline structure is used for controlling the water pressure of the water inlet pipeline; the first piston sealing plate which is arranged in the adjusting pipeline and slides in the adjusting pipeline in a piston mode can move due to the fact that water pressure is gradually increased, meanwhile, the moving space of blockages is also increased, and therefore a passageway is gradually formed by a flow channel, the anti-blocking effect is greatly improved, and the pipeline anti-blocking device is suitable for the technical field of pipeline anti-blocking.

The invention belongs to the technical field of fire fighting equipment, and particularly relates to a high-efficiency water delivery multi-stage fire pump. The multi-stage fire pump comprises a supporting plate, a motor and connecting rings; a base is fixedly connected to the upper side of the supporting plate at the bottom; the motor is fixedly connected to the upper surface of the supporting plate at the top; one side, close to the motor, of the base is fixedly connected with the connecting rings; the plurality of connecting rings matched with the base are mutually combined with the top supporting plate to form a pressurizing cavity; a first cavity is formed in the base; a motor output shaft penetrates through the supporting plate, a shell and the base and extends into the first cavity;one end, located in the first cavity, of the motor output shaft is fixedly connected with a first cam; and a second cam is rotationally connected to one side, located on the first cam, of the first cavity. According to the high-efficiency water delivery multi-stage fire pump, the first cam and the second cam are driven to rotate at a constant speed through the rotation of the motor, so that a negative pressure is formed at an inlet of a water inlet pipe, an external water source is attracted by the negative pressure and enters the water inlet pipe so as to be introduced into the multi-stage fire pump to be sprayed out quickly through pressurizing.

The invention relates to the field of pipeline dredging, and particularly discloses a pipeline dredging device. A cleaning pipe and a cleaning unit are arranged in the device. A first scraper blade isarranged in the cleaning unit; rotating force of the first scraper blade and abutting force to the inner wall of the pipeline are both converted from power of water, so that when the first scraper blade is abutted against the inner wall of the pipeline, the first scraper blade and the inner wall of the pipeline rotate at the same time to fully clean impurities on the inner wall of the pipeline; meanwhile, the acting force of the water can be fully used, so that full use of energy is realized. The device in the scheme can efficiently fully clean the impurities on the inner wall of the pipeline.

The invention discloses a low-temperature energy saving generation system. An energy bin is communicated with a high bin through a water feeding pipe; the water feeding pipe is provided with a one-way flow valve; the high bin is communicated with a water source bin through a water draining pipe; the water draining pipe is provided with a hydraulic generator; the water source bin is communicated with the energy bin through a communication pipe; the communication pipe is provided with a one-way flow valve; the bottom of the water source bin is level with or higher than the top of the energy bin; a heater is arranged in the energy bin and connected with an external temperature control switch; and an air guiding pipe is arranged between the high bin and the water source bin. In the invention, the liquid with a low boiling point is evaporated by heating to form a steam pressure, and the aqueous solution is forced to rise to the high bin to form potential energy; and the aqueous solution inclines downwards under the gravity so as to push the hydraulic generator to generate electricity. As the liquid with the low boiling point has a relatively high density, the liquid is injected into the water source bin through low-temperature condensation and flows into the energy bin in a circulation process to realize circular use, thus the loss of the liquid is avoided, the use amount is relatively small, and the cost is relatively low.

The invention relates to the field of traffic facilities, in particular to a traffic signal lamp for a road of a remote and mountainous area. The traffic signal lamp for the mountainous area comprises a stand column installed on the roadside, signal lamp bodies installed at the upper end of the stand column, a battery and a control device, wherein the battery and the control device are installed in a control box below the stand column; a deceleration strip is arranged on the road surface near the stand column and is of a strip-shaped hollow flexible structure, the deceleration strip is filled with water, first flowing water pipes laid in a roadbed are arranged at the two ends of the deceleration strip and are converged to a tee joint, the other outlet of the tee joint is connected to the bottom of a water storage tank through a second flowing water pipe, the water storage tank is higher than the deceleration strip, a vent hole is formed in one lateral wall of the water storage tank, the second flowing water pipe is connected with a water generator in series, and the water generator is electrically connected with the battery. By the adoption of the scheme, the battery does not need to be frequently replaced, and maintenance is convenient.

The invention discloses an electroplating method of samarium-cobalt magnetic steel. The electroplating method comprises the following steps of 1) carrying out pretreatment on the samarium-cobalt magnetic steel; (2) carrying out nickel electroplating treatment on the samarium-cobalt magnetic steel, specifically, firstly, carrying out nickel electroplating by adopting large-current impact with the electroplating time of T1, carrying out nickel electroplating by adopting normal current with the electroplating time of T2, and carrying out nickel electroplating by adopting low current with the electroplating time of T3, wherein T1 is less than T2 and T3; and 3) carrying out post-treatment on the samarium-cobalt magnetic steel subjected to nickel electroplating. During nickel electroplating, large-current nickel electroplating, normal-current nickel electroplating and low-current nickel electroplating are sequentially adopted to form different levels of current density electroplating combinations, samarium-cobalt magnetic steel parts are prevented from being corroded by an acid nickel plating solution during nickel plating, a nickel coating with a certain thickness and fine surface crystallization is formed, and the appearance and the protection performance of the nickel coating are ensured.

The invention discloses a novel liquid storage and filling cover belt oil-blocking ventilation mechanism assembly for an automobile, which comprises a liquid storage filling cover, an oil inlet rubbersealing ring, a vent rubber sealing ring, a sealing bracket, a floating block, the sealing bracket and the floating block are both arranged in the liquid storage filling cover; the floating block issleeved with the bottom of the sealing bracket and is connected with the vent rubber sealing ring; the end surface of the bottom of the sealing bracket is connected to the end surface of an oil inletof a liquid storage tank through the oil inlet rubber sealing ring; the liquid storage filling cover is arranged at the oil inlet of the liquid storage tank, the sealing bracket is provided with an air communication channel which is communicated with the outside atmosphere and the inner side of the oil inlet of the liquid storage tank, and the upper movement of the floating block under the impactof oil liquid drives the vent rubber sealing ring to seal at the air communication channel. The assembly can effectively avoid the problem that the liquid in the liquid storage tank leaks from the oilinlet of the liquid storage tank when the automobile is bumped and braked in an emergency, and has the advantages of unique design and reliable and stable performance.

The invention belongs to the technical field of power transmission lines, and discloses a design method for an important crossing of a power transmission line that can be quickly repaired. Erection of one-phase wire as a spare spare phase wire is usually run in parallel with the adjacent phase wire or grounded; if a phase wire of a certain circuit breaks, only the broken phase wire is removed to relieve the impact on the important facilities across; Change the jumper and replace the broken phase wire with the spare phase wire to quickly restore the power supply. After adopting the present invention, if an important spanning section of the transmission line is disconnected, the impact on important facilities can be quickly removed, the impact on the facility can be avoided, and the power supply can be quickly repaired and restored, which is convenient, fast and basically free of cost.

The invention discloses energy-saving sewage treatment equipment for chemical industry production. The equipment comprises a reaction bin, an impeller, a medicament bin and a distillation bin, whereinthe upper end of the reaction bin is connected with a water conveying pipe, the impeller is welded at the lower end of a connecting shaft, the medicament bin is formed in the inner side of the reaction bin, a first guide column and a second guide column are arranged on the outer side of a movable block, a feeding bin is arranged on the outer side of the reaction bin, a supporting column is fixedbetween the reaction bin and the distillation bin through bolts, a heat conduction block is arranged at the bottom of the reaction bin, and a condensation pipe is connected to the outer side of the distillation bin. According to the energy-saving sewage treatment equipment for chemical industry production, part of mechanisms of the equipment can be driven by utilizing the potential energy of sewage, so that the effect of automatically and quantitatively adding a neutralizer is achieved while heat generated in the sewage treatment process can be recycled, and the environment-friendly and energy-saving properties of the equipment are improved.

The invention discloses a method for electroplating samarium-cobalt magnets, which comprises the following steps: 1) performing pretreatment on the samarium-cobalt magnets; The time is T1; then use normal current to electroplate nickel, and the electroplating time is T2; finally, use small current to electroplate nickel, and the electroplating time is T3; T1 is less than T2 and T3; 3) Post-treatment the nickel-plated SmCo magnet. The present invention adopts high current electroplating nickel, normal current nickel electroplating and low current electroplating nickel sequentially during nickel electroplating to form different levels of current density electroplating combinations, preventing samarium cobalt magnetic steel parts from being corroded by acid nickel plating solution during nickel plating, forming Nickel coating with a certain thickness and fine surface crystallization ensures the appearance and protective performance of the nickel coating.

The invention relates to a hydraulic impactor regulated by a piston. The upper end of the shell of the hydraulic impactor regulated by the piston is threadedly connected to the upper conversion joint, and the lower end of the housing is provided with an anvil, and the lower end of the anvil is a lower conversion joint; The body is fastened in the shell, there is an upper spacer sleeve and an upper valve seat between the upper conversion joint and the cylinder body, the valve cover is installed in the upper valve seat, there are flow channels around the valve cover, the valve cover and the cylinder body form a valve chamber, The impact hammer extends into the valve chamber through the cylinder body, the bottom of the impact hammer contacts the casing, a low-pressure chamber is formed between the impact hammer and the cylinder body, the casing has a low-pressure hole, and the low-pressure hole connects the low-pressure chamber with the annular space; the impact hammer There is a cylinder at the upper end, and the first piston bottom plate is located in the cylinder; there is a valve cylinder at the upper end of the anvil, and the second piston bottom plate is located in the valve cylinder, and the second piston top plate is a free end. There is a piston groove at the bottom of the impact hammer, and the impact hammer is connected to the anvil. , the second piston top plate is located in the piston groove. The invention solves the problem of poor impact effect of the existing hydraulic impactor.

The invention discloses a power transaction high-concurrency declaration front-end response method and system. The method comprises the following steps: checking mass transaction declaration data acquired by external network service; and storing the verified transaction declaration data in a cache library preset by an external network. The power transaction platform provided by the invention has the supporting capability of ten-thousand-level concurrent transaction declaration, can effectively improve the data declaration efficiency of the extranet client, increases the response speed of the client, and improves the user experience.

The invention discloses a height adjustment power maintenances rack with a high-efficiency oil dissolver. The maintenance rack structurally comprises a device pedestal, a mount, a chute rack, a workbench, the high-efficiency oil dissolver and a photovoltaic panel; the chute rack is positioned in the upper side surface of the mount and welded to the mount to form an integrated structure, the workbench is embedded into the chute rack and is in clearance fit with the chute rack, the device casing is vertical to the lower lateral side of the mount and fixedly connected with the mount, and the photovoltaic panel is vertical to the upper end surface of the chute rack and is in integrating connection with the chute rack to form an integrated structure. Thus, solar energy is collected to provide high-temperature high-pressure gas for maintenance via a focusing heating medium, and a high-efficiency oil dissolution mechanism is provided for a work staff, better help is provided for the work staff, and a memory sponge rack and a hinging rack instead of a spring provides a slow rebounding space for equipment.

The invention relates to an HL type high-strain pile-trialing method hammering system, comprising from up to down: a lock disk type detacher, a hammer and a retractable guide frame, wherein a box is arranged outside the lock disk type detacher; a lock disk is arranged in the box; the lock disk is a flat square shell; a lock catch is arranged on an upper surface of the shell; two side outside the lock catch are respectively provided with parallel lock arms; two long side faces of the lock disk are respectively equipped with two extension rods; a spring is mounted on a lower portion of one of two short side faces; the spring is connected with an extension rod control rope and an extension rod lock; four corners of the upper surface of the lock disk are respectively provided with hoisting holes along a diagonal direction; the hammer is a hammer body; a vertical lock head is arranged on the top of the hammer body; a hoisting nose is arranged on the lower portion of the lock head near to the hammer body; the retractable guide frame is a vertical frame and is composed of a basic joint and an adjustment joint; a longitudinal section of the basic joint is trapezoid; the basic joint is provided with a top face and a bottom face; bevel edges on two sides are composed of a lower segment, a middle segment and an upper segment from down to up; the longitudinal section of the adjustment joint are two rectangles, so that a new high-strain pile-trialing method hammering system is formed.

The invention belongs to the technical field of bearing quenching, and particularly relates to a large bearing quenching stirring device. The large bearing quenching stirring device comprises a stirring paddle and a driving mechanism, wherein the stirring paddle is arranged in a quenching oil pool; the driving mechanism drives the stirring paddle to move through a transmission mechanism; a flow guide cylinder covers the stirring paddle; one end, close to the bottom of the quenching oil pool, of the flow guide cylinder is open; a flow guide opening is formed in the flow guide cylinder in the circumferential direction; the flow guide opening communicates with the flow guide cylinder and the quenching oil pool; the flow guide opening is located above the stirring paddle; the height of the flow guide opening is matched with the height of a workpiece to be machined; and the flow guide cylinder at the upper part of the flow guide opening is closed. The large bearing quenching stirring device is novel in structure and convenient to work. Quenching oil in the pool can quickly impact the inner diameter of the workpiece through the flow guide cylinder, and heat on the surface of the inner diameter is taken away, so that the optimal quenching state is achieved.

The invention discloses a rotary excavating cutting pick with long service life. The rotary excavating cutting pick comprises a pick handle, wherein a connecting opening is formed in the bottom end of the pick handle; a limiting structure is arranged at the top end of the pick handle; a bearing is fixedly connected to the upper part of the pick handle; a protecting structure is arranged at the upper part of the pick handle; a durable structure is arranged at the upper part of the pick handle, and comprises a head body; the head body is fixedly connected to the upper part of the bearing; a diamond layer is arranged at the top end of the inner part of the head body; a conical shell is fixedly connected to the upper part of the head body; a pick head is fixedly connected to the top end of the conical shell; and a plurality of layers of diamond are arranged in the diamond layer in a staggered manner. According to the rotary excavating cutting pick with long service life disclosed by the invention, the head body, the diamond layer, the pick head and the conical shell are arranged, so that the service life is prolonged, the cost is reduced, the consumption of the cost is reduced, the rotary excavating cutting pick has certain durability, and the problems that the service life is short, the consumption of the cost is high, and the rotary excavating cutting pick does not have certain durability are solved.

The invention relates to the technical field of blast furnace by-product returning, in particular to a blast furnace fly ash batching and returning system which comprises a main body. A power box is mounted on one side of the main body, a separation mechanism is arranged in the main body, an air distribution mechanism is mounted in the bottom end of the main body, a one-way mechanism and a brake mechanism are arranged on the power box, the one-way mechanism is communicated with the air distribution mechanism, the brake mechanism drives the one-way mechanism, and a refining mechanism is erected on the separation mechanism. Through the separation mechanism and the refining mechanism, coked dust can be refined and crushed conveniently; the air distribution mechanism can better enable dust particles to flow in the separation mechanism conveniently; the separation mechanism is assisted in better achieving a sorting effect, so that the vulcanization circulation effect in a blast furnace is improved; and through the arrangement of the brake mechanism and the one-way mechanism, blast furnace material returning air can be continuously conveyed into the main body conveniently, and conveying of the material returning air into the main body is not influenced mutually, so that the failure rate during conveying is reduced.

The invention discloses an oscillation impact testing device. The oscillation impact testing device comprises a sensor, an oscilloscope, a frame foundation, a barrel seat, two barrel connecting hoops, two barrels, a guide tube, a vehicle, a launcher and a launcher seat. The frame foundation is fixed onto a test stand, the barrel seat and the launcher seat are fixed to the two ends of the frame foundation respectively and are coaxial. The two barrels are coaxially connected with the barrel seat and the launcher seat through the barrel connecting hoops. The other ends of the two barrels are fixed to the inner portion of the guide tube. The vehicle is installed inside the barrel connected with the launcher seat. A plurality of pressure sensors are evenly arranged on the lateral walls of the two barrels in the axial direction. The pressure sensors are connected with the oscilloscope. The launcher is installed inside the launcher seat. By means of the oscillation impact testing device, the oscillation impact state inside a propellant bed bore can be better simulated, the mechanical property in the propellant powder action process can be evaluated objectively and truly, the basic performance of different propellant powder dynamic mechanical strengths is obtained by comparing the broken state of powder particles before collision and the broken state of the powder particles after collision and a technological means is provided for studying high-strength propellant powder and improving the technical level of high-gun-pressure guns.

The invention discloses a sanitary and environment-friendly facility for captive breeding of livestock farms, which comprises a captive breeding house. A house foundation is fixedly laid on the lowersurface of the captive breeding house, an entrance-exit is formed in the surface of the captive breeding house, ventilation nets are fixedly installed on the portions, located on the two sides of theentrance-exit, of the surface of the captive breeding house, and a drainage roof is fixedly installed on the upper surface of the captive breeding house. A mounting rod is fixedly mounted on the surface of the inner side of the captive breeding room, residue discharge channels are formed in the positions, close to the two sides, of the upper surface of the house foundation, an enclosing wall is fixedly mounted on the upper surface of the house foundation, and feeding troughs are fixedly mounted on the side, close to the residue discharge channels, of the surface of the enclosing wall. According to the sanitary and environment-friendly facility for captive breeding of livestock farms, troubles caused by manual excrement removal can be avoided, most harmful bacterium residues can be eliminated, bacterium propagation is inhibited, the risk caused by virus infection of livestock is reduced, a good ventilation and drying effect can be achieved, and breeding of harmful bacteria is prevented.

The invention relates to a hydraulic impactor regulated and controlled by a piston. The upper end of a shell of the hydraulic impactor regulated and controlled by the piston is connected with an upperportion switching joint in a threaded mode; the lower end of the shell is provided with an anvil; the lower end of the anvil is provided with a lower portion switching joint; a cylinder body is fastened in the shell; an upper portion spacing sleeve and an upper valve seat are arranged between the upper portion switching joint and the cylinder body; a valve cover is arranged in the upper valve seat; a passageway is arranged around the valve cover; a valve cavity is formed by the valve cover and the cylinder body; an impact hammer passes through the cylinder body and stretched into the valve cavity; the bottom of the impact hammer contacts with the shell; a low pressure cavity is formed between the impact hammer and the cylinder body; the shell is provided with a low voltage channel, and the a low pressure chamber communicates with a annulus by the low voltage channel; the upper end of the anvil is provided with a valve cylinder; a first piston bottom plate is located in the valve cylinder; the upper end of the anvil is provided with a valve barrel, and the second piston bottom plate is located in the valve barrel; the second piston bottom plate is a free end; the bottom of the impact hammer is provided with a piston groove; and when the piston is connected with the anvil, and a second piston top plate is located in the piston groove. The hydraulic impactor controlled by the piston solves the problem of a poor impact effect of an existing hydraulic impactor.

The invention discloses an electronic component on-line high and low temperature detection device, a high and low temperature test socket and a chip high and low temperature test method. The electronic component on-line high and low temperature detection device comprises the test socket, a base body of the test socket is provided with an installation hole or groove, and the base body is made of a first heat conduction material; the base body is provided with a heating device located on the outer side of the installation hole or groove and a medium pipeline surrounding the installation hole or groove, the medium pipeline is made of a second heat conduction material, the heat conduction coefficient of the second heat conduction material and the heat conduction coefficient of the first heat conduction material are both not lower than 300 W / m.K, and the inlet end of the medium pipeline is connected with a cooling medium supply pipeline. According to the scheme, a heating structure and a cooling structure are integrated on the base body, rapid conversion of temperature is effectively guaranteed by combining the design of the heat conductivity of materials and accelerating heat conduction, the temperature can be completely loaded into an online detection system, functional integrity testing of electronic elements in high and low temperature environments is achieved, and reliability and accuracy of a testing structure are guaranteed.