42results about How to "Increase injection pressure" patented technology

The invention relates to the technical field of building pipe piles, in particular to an improved precast pile in a collapsible loess area and a construction technology, the improved precast pile comprises a hollow steel pipe pile, and a receding hole is formed in the hollow steel pipe pile; the at least one guide insertion strip is rotationally connected with the hollow steel pipe pile, the rotating plane of the guide insertion strip is vertically arranged, the guide insertion strip extends into an inner cavity of the hollow steel pipe pile through the receding hole to form a linkage strip, the guide insertion strip and the linkage strip are both arranged in a hollow mode, and a plurality of grout outlets are formed in the guide insertion strip; an inner cavity of the hollow steel pipe pile communicates with the grout outlet through an inner cavity of the linkage strip. The rotation driving unit is movably arranged in an inner cavity of the hollow steel pipe pile, and the rotation driving unit is matched with the linkage strip to drive the guide insertion strip to rotate; the precast pile has the effects that the strengthening effect of the under-pressure concrete on the soil body around the precast pile is improved, and then the settlement amount of the precast pile is reduced when collapsible settlement occurs in the soil body.

The invention relates to the technical field of hydraulic stations, in particular to a hydraulic station cooling system adopting integrated design, which comprises an oil storage tank, a hydraulic oil pump and a distribution valve assembly, and the hydraulic oil pump and the distribution valve assembly are arranged on the oil storage tank. A control support pipe and a backflow support pipe are arranged in the oil storage tank, a communicating ring frame is arranged between the control support pipe and the backflow support pipe in a communicating mode, cambered surface heat conduction discs are symmetrically arranged on the two sides of the communicating ring frame, and the communicating ring frame and the cambered surface heat conduction discs are matched to form a closed cavity. Hydraulic oil in the oil storage tank can be cooled, meanwhile, when the liquid level of the hydraulic oil is too low, the cambered surface heat conduction disc can be actively controlled to bulge, so that the cambered surface heat conduction disc protrudes outwards, the occupied space is increased, the liquid level is increased, and the fluctuation range of the liquid level in the oil storage tank is reduced.

The invention relates to an automatic injection molding control method and system for toothbrush production, and the method comprises the steps: obtaining a toothbrush injection mold, analyzing the injection molding track of the toothbrush injection mold, and carrying out the injection molding key point positioning of the injection molding track to obtain the stepped injection molding track of the toothbrush injection mold; obtaining the melt flow velocity of the injection molding material, analyzing the injection molding influence of the melt flow velocity on the stepped injection molding track, adjusting the injection molding speed of each injection molding stage according to the analysis result to obtain stepped injection molding speed data, and analyzing the injection molding speed change relationship between adjacent cavities according to the stepped injection molding speed and the corresponding injection mold cavity. And a production control model of the toothbrush injection mold is constructed, the injection glue spraying speed and the injection glue spraying pressure of the mold are obtained, the injection glue spraying speed and the injection glue spraying pressure are input into the production control model for injection speed analysis, and complete injection control data of the toothbrush injection mold are obtained. The injection molding control method has the effect of improving the injection molding control accuracy in the toothbrush production process.

The present invention discloses a multifunctional water tank dishwasher, which is characterized by: comprising an ultrasonic transducer, which is arranged in the inner tank of the dishwasher; an ozone generator, which is arranged on the outer side of the bottom of the tank body; a static spray arm, at least one of which is arranged on the side wall of the tank body; a respirator, which comprises a respirator base connected to the outer side of the side wall of the tank body, and a respirator shell used in conjunction with the respirator base; a ventilation unit, which comprises an air duct air inlet arranged on the respirator base and an air duct connected to the air duct air inlet. The present invention provides a washing power system of a dishwasher, and also provides steam to achieve disinfection of tableware after washing; provides ultrasonic cleaning and spray mixed cleaning functions, which can achieve the cleaning of fruits, vegetables and seafood; and provides an ozone generator to make the chemical bonds of organic pesticides lose their medicinal properties, and kill various bacteria and viruses on the surface, so as to achieve the effect of removing pesticide residues in fruits and vegetables.

The invention discloses a high-pressure water spraying rust removal device for a ship outer plate, and belongs to the technical field of ship rust removal. The high-pressure water spraying rust removal device comprises a water tank, a plurality of cameras are fixedly mounted on one side of the water tank, and a controller is fixedly mounted on the front side of the water tank; the spraying mechanism is used for spraying high-pressure water flow, the spraying mechanism comprises a high-pressure water pump and a spraying cylinder, a water outlet of the high-pressure water pump is communicated with a hose, the top end of the hose is communicated with the spraying cylinder, and the outer side of the spraying cylinder is communicated with a plurality of high-pressure nozzles; the lifting driving mechanism is used for driving the water tank to lift; and the adjusting mechanism is used for adjusting the power of the driving motor and the high-pressure water pump, and the adjusting mechanism comprises a resistor strip, a mounting frame and a U-shaped frame. Through the monitoring mechanism and the spraying mechanism, the spraying pressure and speed can be automatically adjusted according to the spraying distance and the corrosion degree of the ship outer plate, so that the structure of a thick rust layer is effectively damaged, and a base material is prevented from being damaged.

The invention relates to the technical field of high-rise fire fighting, in particular to a high-rise building community fire fighting emergency three-dimensional fire fighting rescue robot system which solves the problem that when a fire fighting rescue robot is used, the fire fighting rescue robot cannot be sprayed to a fire point due to the fact that the position of the fire point is too high and the pressure of a sprayed fire extinguishing agent is reduced. The problem that multiple unmanned aerial vehicles are out of control and fall due to the fact that a fire extinguishing pipe is easily wound when the unmanned aerial vehicles move when multiple unmanned aerial vehicles conduct fire extinguishing on different floors at the same time is solved, and the unmanned aerial vehicles comprise a robot module, a fire extinguishing module, a matching module, a monitoring module and an identification module. And a fire extinguishing module is arranged below the robot module. Through mutual cooperation of the two unmanned aerial vehicle mechanisms, the first unmanned aerial vehicle mechanism pulls a fire hose to the high altitude, and the fire extinguishing height of the device is increased in the manner that the connecting hose is connected with the second unmanned aerial vehicle mechanism, so that the situation that fire extinguishing cannot be carried out when the height of an ignition point is higher than that of the fire hose is avoided.

The utility model relates to a sliding clutch. The sliding clutch comprises a lifting plate, a pivot and a pressing plate which are sequentially arranged in the axial direction. The lifting plate and the pressing plate are fixed, the pressing plate is provided with a stand column penetrating through the pivot, a plurality of friction plates and steel plates are arranged between the pivot and the pressing plate at intervals, the stand column is sleeved with a spring, and the spring is connected between the lifting plate and the pressing plate in an abutting mode. A circumferential moving gap is formed between the pressing plate and the pivot, so that the pressing plate and the pivot can rotate relatively; a plurality of guide bosses are further arranged around the center of the pressing plate, guide grooves matched with the guide bosses are formed in the end face, opposite to the pressing plate, of the pivot in a one-to-one correspondence mode, and the matching faces of the guide grooves and the guide bosses are provided with spiral inclined faces which abut against each other and are attached to each other. The structure is more flexible and smooth in separation, rapid in separation and reunion and small in vibration.

The application discloses an injection molding method for a toy light guide pipe, which can avoid the occurrence of flow lines and bubbles in the toy light guide pipe after injection molding. The technical scheme is as follows: an injection molding method for a toy light guide pipe, which comprises a mold provided with a cavity, and the cavity is provided with a gate through which glue is injected into the cavity, and the glue injection is divided into five stages, i.e., a first glue injection stage, a second glue injection stage, a third glue injection stage, a fourth glue injection stage and a fifth glue injection stage. The glue injection speed of the first glue injection stage is the largest, the glue injection speed of the third glue injection stage is larger than that of the second glue injection stage and the fourth glue injection stage, and the glue injection speed of the fifth glue injection stage is the smallest. The glue injection pressure of the first glue injection stage is smaller than that of the second glue injection stage, and the glue injection pressure of the second glue injection stage is smaller than that of the third glue injection stage. The application belongs to the technical field of injection molding.

The utility model relates to the field of unmanned plane discloses a kind of cleaning unmanned plane with multi-directional rotary spray arm, including the cleaning unmanned plane with multi-directional rotary spray arm, including body, the lower surface of the body is fixedly connected with support frame, the outer wall of the support frame is inserted with storage box, the front end of the storage box is fixedly connected with water delivery block, the inner wall of the water delivery block is provided with first water delivery pipe, and the front end of the water delivery block is provided with adjusting assembly;The adjusting assembly includes limit block, and the limit block is fixedly connected at the front end of water delivery block.In the utility model, the adjusting assembly of water delivery block front end is set to spray head pipe adjusting angle, when preparing to spray head pipe adjusting angle, first motor drives worm to rotate, is engaged with the meshing of rotating block outer wall worm wheel, drives rotating block and spray head pipe to rotate around second water delivery pipe, so that the upward angle of spray head pipe can be realized.

The utility model relates to the technical field of beauty injection guns, in particular to a component pressurization injection gun which comprises an injection gun body, a groove is formed in the top of the injection gun body, a medicine feeding groove is formed in the bottom of the inner side of the groove, and an electric push rod is installed on one end face of the inner side of the groove. The pressure sensor is installed in the center of one end of the electric push rod in an embedded mode, the distance sensor is installed on one side of the outer ring face of the electric push rod in an intrusive mode, and the needle cylinder is placed on the inner side of the medicine feeding groove. The two adjusters are used for adjusting the pressure value of the pressure sensor and adjusting the distance value of the distance sensor, so that the pressure value is adjusted by adjusting the elongation rate in the process that the electric push rod pushes the piston rod, the injection pressure is improved, meanwhile, the injection amount is controlled through the elongation distance of the electric push rod, and the injection efficiency is improved. And the control on the single injection amount is realized.

The invention relates to the related technical field of Korean pine introduction and cultivation, and discloses a fruit Korean pine introduction and cultivation device and a cultivation process thereof based on Maosuu sandy land, a special introduction and cultivation device is utilized to drive cuttings to rotate and intermittently enter a nutrient solution, so that the cuttings can be fully infiltrated, and meanwhile, the cuttings can be fully planted in the nutrient solution. The problem of oxygen deficit caused by long-time immersion of the cuttings in water is avoided, the rooting speed of the cuttings is also improved, root systems grown in the air are better than root systems of pure water culture and are easier to transfer into soil and transplant, and the cuttings can absorb a nutrient solution from the upper ends in a mode that the lower ends of the cuttings are sealed by wax and the upper ends of the cuttings are pressurized to introduce the nutrient solution. Part of the cuttings which are intermittently immersed into the nutrient solution from the lower end roots, so that the rooting parts of the cuttings are not easily infected by harmful bacteria, and the risks of rotting and blackening of the cuttings are reduced.

The invention discloses carbon dioxide reinforced plastering mortar, which is prepared from the following ingredients in parts by mass: 10 to 15 parts of cement, 10 to 18 parts of carbonization reinforcing agents, 120 to 140 parts of fine aggregates, 20 to 24 parts of mixing water and 0.2 to 0.5 part of additives. The carbonization enhancer is obtained by grinding carbide slag, steel slag, lithium slag, light calcined magnesia and magnesium sulfate as main raw materials. A large amount of industrial solid wastes are used as raw materials, and excellent working performance can be kept for a long time before construction; meanwhile, reinforcing liquid containing carbon dioxide is sprayed after the two-time plastering process, the plastered wall surface is rapidly hardened, the plastering construction interval is remarkably shortened, the construction efficiency is improved, meanwhile, good bonding strength and compressive strength are guaranteed, the carbon footprint of a mortar product is remarkably reduced, and the mortar has remarkable economic and environmental benefits and is suitable for application and popularization.

The ground powder spraying equipment for pest control comprises a base, wheel carriers are fixedly arranged at the four corners of the base respectively, and walking wheels are rotationally arranged at the lower ends of the wheel carriers; a medicine storage box and a turnover box are fixedly arranged at the upper part of the base; a bottom plate of the medicine storage box is obliquely arranged downwards in the direction close to the turnover box, and one end of the lower portion of the medicine storage box communicates with the lower end of the turnover box through a downwards-inclined material transferring channel; a horizontal pressurizing barrel is fixedly arranged on the turnover box, a material transferring hopper is arranged at the position, located in the turnover box, of the pressurizing barrel, and a turnover mechanism used for transferring powder into the material transferring hopper from the bottom of the turnover box is arranged in the turnover box; and a rotating pipe is rotationally arranged in the middle of the pressurizing cylinder. According to the automatic spraying device, automatic spraying operation of powder medicine is achieved, manpower input is reduced, and the spraying pressure and the spraying range of powder are effectively improved.

The invention discloses an oil injection system and a vehicle, and the oil injection system comprises an oil pump, an oil injector and a plurality of oil pipes. The oil sprayer is provided with a plurality of oil inlet holes; the inlet ends of the multiple oil pipes are all connected with the oil pump, the outlet ends of the multiple oil pipes are connected with the multiple oil inlet holes in a one-to-one correspondence mode, the multiple oil pipes comprise at least one first oil pipe, and the first oil pipe has the optimized length; the first oil pipe is configured to have the maximum pressure after fuel oil moves in the first oil pipe by the optimized length. According to the oil injection system, the pipe length of at least one oil pipe can be optimized, and therefore redundancy of the pipe length is reduced.

The utility model relates to the technical field of spray gun sprayers, and discloses a hot melt glue spraying anti-sputtering spray gun sprayer which comprises a spray gun body, a nozzle is arranged on one side of the spray gun body, a spraying quantity adjusting assembly is rotatably arranged at the nozzle and comprises an adjusting head, the adjusting head is rotatably arranged at the nozzle in a sleeved mode, and the adjusting head is connected with the spray gun body. A plurality of spray holes are formed in the adjusting head in a surrounding mode, a groove is formed in the adjusting head, a positioning rod is connected to the interior of the groove through a telescopic spring, a plurality of positioning grooves matched with the positioning rod are formed in the spray gun body in an equal-angle surrounding mode, a threaded groove is formed in the outer surface of the adjusting head, and a splash-proof cover is arranged on the adjusting head in a threaded connection mode. The splash-proof cover is of a double-layer structure and comprises an inner cover body and an outer cover body from inside to outside, the spray hole diameter is changed, the spray liquid flow is controlled, meanwhile, the splash-proof cover is arranged for protection, the aim of preventing spray liquid from splashing is achieved, and the splash-proof effect is good.

The utility model provides a medical tissue glue applicator. The medical tissue glue applicator comprises an applicator body, a multi-cavity tube and a protective sleeve. The applicator main body is used for mounting an injection device filled with tissue collagen liquid; the multi-cavity tube is connected with the applicator main body and is configured to receive and convey the tissue collagen liquid and the high-pressure gas; the multi-cavity tube is sleeved with the protective sleeve, the protective sleeve is used for protecting the multi-cavity tube, at least one part, away from the applicator body, in the multi-cavity tube is provided with a metal wire, and the metal wire is configured to enable at least one part of the multi-cavity tube to be bent.

The utility model relates to the technical field of grouting devices, in particular to a grouting device of a PHC pipe pile, which comprises a cylinder body, grout outlet holes are formed in the outer surface of the cylinder body at equal intervals in a penetrating mode, a plugging column is arranged at the bottom of the cylinder body, and a vertical rod is rotatably connected in the plugging column through a bearing. Turbine blades are fixed to the top end, located in the barrel, of the vertical rod through flat keys, and a cleaning assembly is arranged on the outer side, located in the barrel, of the vertical rod. The cleaning assembly comprises fixing sleeves arranged on the outer side of the vertical rod in a sleeving mode through flat keys at equal intervals, connecting plates are welded to the outer sides of the fixing sleeves at equal intervals, and wiping brushes are fixed to one ends of the connecting plates through bolts. When slurry enters the cylinder body, the turbine blade can be pushed to drive the vertical rod to rotate, the vertical rod rotates to drive the fixing sleeve and the connecting plate on the outer side of the fixing sleeve to rotate, the connecting plate rotates to brush the slurry outlet through the wiping brush, the slurry cannot be blocked in the slurry outlet, and the grouting efficiency cannot be affected.

The invention discloses an injector and a common rail fuel injection system, and relates to the technical field of diesel engines. The injector comprises: a supercharging part, comprising a supercharging cylinder and a piston; and an injection part, comprising an injector body, a control valve and a needle valve. The control valve comprises a control valve stem and a driving mechanism, and the driving mechanism can drive the control valve stem to move to a first position, so that the control valve stem simultaneously blocks a first on-off port and a second on-off port, conducts the oil path between the control chamber and the oil drain port, and conducts the oil path between the oil inlet and the supercharging oil inlet chamber, thereby causing the needle valve to close the injection port; the driving mechanism can also drive the control valve stem to move to a second position, so that the control valve stem simultaneously opens the first on-off port and the second on-off port, disconnects the oil path between the control chamber and the oil drain port, and disconnects the oil path between the oil inlet and the supercharging oil inlet chamber, thereby causing the needle valve to open the injection port. The injector can provide a higher fuel injection pressure, simplify the setting of the common rail fuel injection system, and reduce costs.

The utility model provides a track self-cleaning pressurizing spraying mechanism which is characterized in that fixing clamps are distributed on at least one side of the upstream or the downstream of a mounting rod, a vertical rod pressurizing spraying pipe is arranged on the mounting rod through the fixing clamps, spraying heads are distributed on the vertical rod pressurizing spraying pipe, a water inlet hose is connected with the vertical rod pressurizing spraying pipe, and a water outlet hose is connected with the vertical rod pressurizing spraying pipe. And the mounting rod is connected with the vertical rod pressurizing spray pipe. The spraying mechanism is driven by a self-cleaning track mechanism, vertical rod pressurizing spraying arrangement is adopted, the vertical rod pressurizing spraying arrangement is beneficial to being matched with a horizontal track distribution mode, so that the track arrangement is beneficial to being optimized, the effect of gravity can be fully utilized through the arrangement of the vertical rod pressurizing spraying mechanism, the spraying pressure of a spraying head is increased, and the running cost of equipment is reduced; by optimizing the arrangement of the spraying head, effective cleaning of the cleaning part is achieved, full coverage of the cleaning part is guaranteed, no dead angle is left, and meanwhile the energy-saving and water-saving effects are achieved; under the control that the PLC is matched with the three-way valve and the booster pump, spraying cleaning with the water pressure and the water quantity adjusted is achieved.

The invention relates to a precise plunger screw head which is fixedly installed at the front end of a screw, the screw is coaxially arranged in a material conveying channel of a material pipe, an injection assembly is arranged at the front end of the material pipe, a plunger sealing part is arranged at the front end of the plunger screw head, and the plunger sealing part is arranged at the front end of the plunger screw head. And a plunger sealing channel matched with the plunger sealing part in a grinding manner is arranged in the injection assembly. The plunger structure is ingeniously integrated into the screw, the integration degree is high, original equipment can be transformed, new equipment does not need to be purchased, and therefore repeated investment is saved, after the precise plunger screw head is adopted, the injection pressure can be increased, the injection weight can be reduced, the phenomena of plastic carbonization and degradation can be reduced, the quality can be improved, and the production cost can be reduced. And the purpose of precise injection molding is achieved.

The present invention discloses a material injection device for die-casting equipment, including a material injection mechanism and a longitudinal pushing mechanism connected to the material injection mechanism, wherein the longitudinal pushing mechanism includes a longitudinal pushing mounting seat, a longitudinal pushing servo motor arranged on the longitudinal pushing mounting seat, a driving gear connected to the output shaft of the longitudinal pushing servo motor, an eccentric wheel structure arranged transversely on the longitudinal pushing mounting seat and meshing with the driving gear, and a longitudinal pushing structure arranged longitudinally on the longitudinal pushing mounting seat and connected to the eccentric wheel structure; the material injection mechanism includes a furnace, a material injection mounting seat arranged on the furnace, a material injection nozzle inserted transversely into the material injection mounting seat, and a material injection pushing assembly arranged in the material injection mounting seat and connected to the longitudinal pushing structure. The material injection device for die-casting equipment provided by the present invention has high material injection stability and accuracy, and can ensure material injection filling saturation.

The invention relates to the technical field of spraying equipment, in particular to a spraying device for processing an office stationery placing shelf, which comprises a spray head body, the spray head body is provided with a spraying cavity and a first chute, a sliding plate is in sliding fit in the first chute, the sliding plate is located at the outlet of the spraying cavity, and the sliding plate is provided with more than two nozzles; a movable ring is arranged in the spray cavity in a sliding fit mode, an expansion bag mechanism is arranged on the movable ring, an electromagnet mechanism is arranged in the spray head body, and the expansion bag mechanism is in driving connection with the electromagnet mechanism. A feeding switching mechanism is arranged on the spray head body, and a coating feeding pipe and a water inlet pipe are arranged on the feeding switching mechanism. Through the arrangement of the feeding conversion mechanism, after the spraying work of the device is finished, the water inlet pipe is adjusted to communicate with the spraying cavity, and water sequentially passes through the spraying cavity and the nozzle to clean the interiors of the spraying cavity and the nozzle, so that the corrosion phenomenon caused by internal residual paint and the influence on the next use after the paint is cured in the device are prevented.

The present invention relates to a parent-child screw injection molding device, wherein a driving mechanism is slidably connected to a base, a barrel is fixedly connected to a barrel seat of the base, the barrel seat is slidably connected to the base, the barrel includes a front barrel and a rear barrel, one end of the screw is inserted into the barrel, and its end is detachably connected to a mother screw head, and the other end is transmission-connected to the driving mechanism, and a sub-screw head is installed on the mother screw head, and the sub-screw head cooperates with a pressurized inner cavity in the front barrel, or a secondary sub-screw head is installed at the front end of the sub-screw head, and the secondary sub-screw head cooperates with a pressurized inner cavity in the front barrel. The present invention adds a sub-screw head or even a secondary sub-screw head to the mother screw head, and can simultaneously obtain high pressure or ultra-high injection pressure under a large injection amount, greatly improve product quality, increase injection amount, shorten feeding time, improve production efficiency, reduce wear of the screw barrel, save electricity, and is also suitable for plastic products with particularly long feeding time, saving costs.

The utility model relates to the field of dangerous chemical article fire safety, concretely relates to a dangerous chemical article storage area intelligent fire extinguishing device, including fire control connecting pipe, as the main support structure of device, the outside of fire control connecting pipe is fixed from left to right and installed with catalytic combustion formula sensor, electrochemical sensor, photoionization sensor, double wave band infrared flame detector and laser smoke sensor in proper order. Through a variety of sensors to the dangerous chemical article storage area monitoring, the fire extinguishing agent is shunted to multiple groups of oblique flow guide strips through conical support disc, and the flow guide strip is close to the inner wall of shell and guides the fire extinguishing agent to form spiral, enhances the injection pressure, and is evenly distributed to each spray head through the multichannel connector, makes the spray head rotate, ensures that the fire extinguishing agent covers no dead angle, the shell and the sensor synergistic effect, and the pressure is different and opens different passages, both adapts to different fire degree, and also avoids the traditional fixed passage because of the flow matching imbalance and leads to the problem that the fire is not completely extinguished or medium is wasted, and the fire extinguishing efficiency and resource optimization are considered.

The present application discloses a water thruster and a satellite for use in a space environment. The water thruster includes a water supply unit, a vaporization unit, a discharge unit, and an injection unit. The discharge unit further heats the water vapor output from the vaporization unit through pulse discharge, so that the water thruster provides a greater injection pressure, thereby enabling the satellite to more effectively utilize the water stored in the thruster and more effectively change orbits or adjust attitudes.

The invention relates to the technical field related to the introduction and cultivation of Korean pine, and discloses an introduction and cultivation device for Korean pine for fruit based on Maowusu sandy land and a cultivation process thereof. By utilizing a special introduction and cultivation device, a cutting is driven to rotate and intermittently enter a nutrient solution, thereby ensuring that the cutting can be fully infiltrated, avoiding the problem of hypoxia caused by the cutting being immersed in water for a long time, and improving the rooting speed of the cutting. At the same time, the root system grown in the air is also superior to the root system of pure hydroponics, and is easier to transfer to soil and transplant. At the same time, the lower end of the cutting is sealed with wax, and the upper end is pressurized to pass the nutrient solution, so that the cutting can absorb the nutrient solution from the upper end, and the part intermittently immersed in the nutrient solution from the lower end takes root, so that the rooting part of the cutting is not easily infected by harmful bacteria, and the risk of cutting rot and black stem is reduced.

The present invention relates to the technical field of hydraulic stations, and specifically to a hydraulic station cooling system with an integrated design, comprising an oil storage tank, a hydraulic oil pump and a distribution valve assembly arranged on the oil storage tank, the hydraulic oil pump extracts hydraulic oil in the oil storage tank and transports it to the distribution valve assembly, the oil storage tank is provided with a control support pipe and a return support pipe, a connecting ring frame is connected between the control support pipe and the return support pipe, arc-surface heat-conducting disks are symmetrically arranged on both sides of the connecting ring frame, and the connecting ring frame cooperates with the arc-surface heat-conducting disk to form a closed cavity; the present invention can cool the hydraulic oil in the oil storage tank, and at the same time, can actively control the arc-surface heat-conducting disk to bulge when the hydraulic oil level is too low, so that the arc-surface heat-conducting disk bulges outward, increases space occupancy, thereby raising the liquid level and reducing the fluctuation range of the liquid level in the oil storage tank.

The present invention relates to the technical field of ship rust removal, and discloses a ship rust removal high-pressure water jet system and a working method thereof, wherein a ship rust removal high-pressure water jet system comprises: a casing; a spray mechanism, the spray mechanism comprises a pump casing, a drive motor, a spray pipe and a spray nozzle, the spray nozzle is slidably sleeved on the outside of the spray pipe, and the angle between the spray nozzle and the lower surface of the casing is 60°; an adsorption mechanism, the adsorption mechanism comprises an electromagnet, a permanent magnet, a battery and a resistor bar. The present invention is reasonably designed, and the spray mechanism can maintain a constant spray angle for spraying and removing rust on the ship while the casing moves along the outer surface of the ship, and when encountering an area with a large degree of rust, the spray pressure of the water is increased and the moving speed of the casing is reduced, thereby improving the rust removal effect, and the adsorption effect on the ship is increased while the flushing pressure is increased, thereby avoiding falling off, and when an unexpected falling off occurs, the drive motor can be turned off in time to stop the continued spraying.

The invention discloses a construction method for a horizontal jet grouting pile advance support to penetrate through a water-rich sandstone section surrounding rock tunnel. The construction method comprises the following steps that a, construction preparation is conducted, specifically, construction drawings and geological data are familiar, a construction scheme is determined, materials, equipment and tools needed by construction are prepared, and a construction site is cleaned and leveled; and b, measuring and positioning according to the design axis and mileage of the tunnel. The method has the beneficial effects that the stability of surrounding rock is improved, a curtain body can be formed on the periphery of the tunnel to bear part of stratum pressure, the stability of sandy soil soft rock after excavation is kept, and vault slump, collapse and ground surface settlement are effectively controlled; the degree of mechanization is high, equipment matching is perfect, for example, a pst-60 horizontal rotary spraying drilling machine and the like are adopted, the construction efficiency is improved, and the construction safety risk is reduced; and safety guarantee is provided for tunnel excavation, and the possibility of dangerous conditions such as collapse and collapse in the construction process is reduced.

The invention relates to the technical field of fire extinguishing, in particular to a split handheld fire extinguisher which comprises a main tank body, an injection pressure handle, a spray pipe and a spray nozzle, the upper end and the lower end of the main tank body are provided with lateral mounting seats protruding outwards, and the injection pressure handle is mounted on the lateral mounting seat at the upper end of the main tank body. According to the split handheld fire extinguisher, the main tank body and the injection pressure handle are of a split structure and can be quickly separated and replaced after being used, so that the cyclic utilization rate of the fire extinguisher is increased, and the recovery and use cost is reduced; the split type centrifugal booster pump is fixedly mounted on the lateral mounting seat at the lower end of the main tank body, so that a lateral hanging type flow guide pipe on the outer wall of the main tank body is communicated with an air outlet of the split type centrifugal booster pump, the injection pressure is increased through bottom pressurization, and internal fire extinguishing raw materials can be completely used in a bottom opening manner; the resource utilization rate is improved.