38results about How to "Steady injection" patented technology

The utility model discloses an auxiliary syringe for nursing. The auxiliary syringe comprises a needle tube; a needle hub; a needle cylinder and an injection rod; the needle cylinder comprises a connector, the end, away from the needle base, of the connector is fixedly connected with a cylinder, and the end, away from the connector, of the cylinder is fixedly connected with a baffle; the outer wall of the piston is fixedly connected with a stand column, the outer wall of the stand column is fixedly connected with elastic plates, and the elastic plates are symmetrically arranged along the central axis of the stand column. The utility model relates to the field of injectors. The syringe is provided with the baffle ring, the stand column, the elastic plates and the limiting buckle, the dredging hole in the baffle ring ensures normal passing of fluid, the diameter of the baffle hole is slightly larger than the longest straight line in the cross section of the stand column and smaller than the distance between the end points of the free ends of the two elastic plates, and the problem that some people use the used syringe to extract medicine for secondary injection is solved; therefore, secondary pollution to the patient is avoided, the injection health of the patient is ensured to a certain extent, and the patient is more relieved.

The utility model discloses an injection molding machine with a quick injection molding mechanism, which comprises an injection molding machine main body, a hydraulic cylinder is mounted on one side in the injection molding machine main body, the output end of the hydraulic cylinder is fixedly connected with a first mold, and a second mold is fixedly mounted on the other side in the injection molding machine main body. A cooling cover is mounted outside the second mold, a storage tank is arranged on one side of the injection molding machine main body, a discharging pipe is fixedly connected to the bottom end of the storage tank, an injection molding pipe is arranged below the storage tank, and a fixing plate is mounted on one side of the injection molding pipe. According to the injection molding machine with the rapid injection molding mechanism, molten liquid is fully stirred through the heating pipe, the stirring motor can be started in the injection molding process, the stirring motor drives the stirring shaft to rotate, the molten liquid can be heated and stirred through the stirring rod outside the stirring shaft and the heating pipe, and the discharging efficiency can be improved through the cleaning and scraping rod; by means of the structure, the function of conveniently keeping the temperature of injection molding melt is achieved, and the problem that the injection molding effect is poor is solved.

The invention discloses an injection control method and system for dual-frequency characteristic signals of a centralized photovoltaic inverter, and the method comprises the steps: switching from a normal control strategy to a low-voltage ride-through control strategy and an additional signal injection control strategy according to a starting criterion after a power system breaks down; performing frequency separation on the alternating current electric quantity; a negative sequence suppression strategy is adopted for the power frequency negative sequence component, a reactive power priority strategy is adopted for the power frequency positive sequence component, and a first voltage modulation wave signal is obtained; obtaining a second voltage modulation wave signal for the double-frequency characteristic electrical quantity under the non-power frequency; and superposing the first voltage modulation wave signal and the second voltage modulation wave signal to realize injection of a double-frequency signal of the sending-out line. According to the invention, a low-voltage ride-through strategy and current limiting can be realized by using the inverter, and a control scheme for generating two different non-power-frequency signals is provided by depending on the regulation and control characteristics of the inverter, so that stable injection of double-frequency signals in a sending-out line is realized.

The utility model discloses a refrigerant detection and recovery device, which relates to the technical field of refrigerant detection and comprises a detector, connecting pipes are mounted at the top and the bottom of the detector, a connector is connected to the bottom end of the detector through the connecting pipes, a guide pipe is mounted at the bottom end of the connector, and an assembly head is mounted at the bottom end of the guide pipe. And a supporting assembly is installed at the bottom of the detector and comprises a supporting table installed at the bottom of the detector, the supporting table is located on the outer side of the connecting pipe, and a supporting plate is installed at the bottom of the supporting table. The connecting pipes and the detector are installed to detect passing refrigerants, the detector is fixedly connected with the connecting pipes at the top end and the bottom end, the connecting pipes are assembled with the connector, the tightness of the structure is guaranteed, stable transmission of the device is guaranteed, the bottom end of the connector is connected with the assembly head through the guide pipe, and stable transmission of the refrigerants is guaranteed.

The utility model discloses an anti-sticking mechanism for a feed pipe of a granulator, which relates to the technical field of granulation and comprises a body and an anti-sticking mechanism, a tank is arranged at the top end of the body, a movable cover is hinged to the top end of the tank, a feed pipe is connected to the top end of the movable cover, and the anti-sticking mechanism comprises a scraping ring movably connected to the inner wall of the feed pipe in a penetrating manner. An annular groove is formed in the feeding pipe, a heating wire is wound on the inner wall of the annular groove, a moving mechanism is arranged at the top end of the machine body, and an adjusting mechanism is arranged in the scraping ring. By means of the arrangement of the heating wire and the scraping ring, when an adhesive is injected into the tank body through the feeding pipe, the heating wire is powered on to work, and the interior of the feeding pipe can be heated, so that the adhesive is prevented from being adhered to the inner wall of the feeding pipe in the feeding pipe, and if the adhesive is adhered, the scraping ring cannot be damaged. And the scraping ring moves up and down in the feeding pipe, so that an adhesive bonded in the feeding pipe can be scraped off, and the adhesive can be stably injected into the tank body through the feeding pipe.

This utility model discloses an anti-bending protection injection molding device for data cable connectors, belonging to the field of data cable connector injection molding technology. Key technical features include a support base, a lower mold bolted to the top of the support base, a positioning fixture inside the lower mold, a terminal inside the positioning fixture, and a cable on the side of the terminal away from the positioning fixture. An anti-bending mechanism is provided on the front side of the support base. By setting a clamping component, the clamping component provides stable constraint to the cable, preventing it from bending or shifting due to external forces, ensuring accurate relative positioning between the cable and the terminal. By setting a tensioning component, the tensioning component provides appropriate tension to the cable, further preventing bending deformation and straightening any slightly bent cable, ensuring it is in the ideal molding position, thus further improving the production quality and yield of the data cable connector.

The invention relates to the field of internal combustion engines, in particular to a gasoline engine which comprises an engine body and a silencer, the silencer comprises a shell, a catalyst filter screen, an air inlet pipe and an exhaust pipe, the shell is connected to the engine body, the catalyst filter screen is connected to the inner wall of the shell, and one end of the air inlet pipe is connected to the surface of the shell and communicates with an inner cavity of the shell; the end of the exhaust pipe is connected to the surface of the shell and communicated with an inner cavity of the shell, and the catalyst filter screen is located between the air inlet pipe and the exhaust pipe. Through the arrangement of the shell, the catalyst filter screen, the air inlet pipe and the exhaust pipe, harmful gas is converted into harmless substances, tail gas exhausted by the exhaust pipe does not contain harmful gas, the standard in the American Environmental Protection Agency (EPA) certification is met, and for drivers, passengers and pedestrians exposed in the tail gas for a long time, the safety of the automobile is improved. Respiratory diseases, cardiovascular diseases and even cancers are not easily caused, so that the use safety of the gasoline engine is improved.

The present invention discloses a corrosion prevention and control device and method for use between cracking gas compressor sections of an ethylene device. The corrosion prevention and control device is specifically a corrosion inhibitor injection device, which includes a corrosion inhibitor storage tank, a pressure pump, a mass flow meter, an electromagnetic control valve, and a corrosion inhibitor injection pipe that are sequentially connected through pipelines, and the corrosion inhibitor injection pipe is installed on the compressor outlet pipeline between the cracking gas compressor of the ethylene device and the compressor outlet heat exchanger. The present invention can alleviate or inhibit the corrosion of steel equipment / pipelines between the cracking gas compressor sections of an ethylene device under multiple media. The core of the present invention is the corrosion inhibitor injection pipe and its nozzle structure and injection method, which enable the corrosion inhibitor to quickly and efficiently perform corrosion inhibition, while avoiding the problem of uneven dispersion of the corrosion inhibitor under high-flux cracking gas and accumulation and erosion of the wall surface that affects safe production. It has the advantages of high efficiency, stability, safety and environmental protection, and greatly improves the long-term safe operation period of the device.

The invention relates to the technical field of plastic molding, and in particular to a back cover plastic molding device for a corrosion-resistant axial flow pump, comprising a bottom plate and an extruder; and also comprising an injection molding pipe, an air pipe, a lower mold, a lower air delivery net pipe, an upper mold, a feeding pipe, an upper air delivery net pipe and a lifting mechanism, wherein the extrusion pipe of the extruder is connected with the injection molding pipe, the air pipe is sleeved on the outer wall of the injection molding pipe, the lower mold is installed on the lifting mechanism, a lower air delivery net pipe is arranged inside the lower mold, and a lower air outlet structure is arranged on the surface of a lower cavity of the lower air delivery net pipe, the upper mold is sleeved on the outer wall of the air pipe, an annular molding table is arranged in the middle of the upper cavity, the annular molding table is arranged with a plurality of injection molding holes, the injection molding holes are connected with the inside of the injection molding pipe after passing through the air pipe through a plurality of feeding pipes, an upper air delivery net pipe is arranged inside the upper mold, and an upper air delivery net pipe is arranged on the surface of the upper cavity; the plastic back cover is blown off by high-pressure air to avoid sticking, and the plastic back cover is quickly blown to cool and harden, thereby improving work efficiency.

The utility model discloses a portable veterinary medicine injector which comprises a rod handle, a needle cylinder seat and a positioning tube. A positioning disc is installed at the bottom of the positioning pipe, a storage barrel is installed on one side of the bottom of the outer portion of the positioning pipe, a needle cylinder base is placed at the top of the positioning pipe, a needle cylinder body is installed at the bottom of the needle cylinder base, scale marks are arranged on the outer surface of the needle cylinder body, and a medicine injection head is installed at the bottom of the needle cylinder body. A rod handle is placed on the top of the needle cylinder base, and a threaded containing groove is formed in the rod handle. The positioning disc is mounted at the bottom of the positioning tube, so that when a medical worker injects, the positioning tube can be attached to the body surface of an animal through the positioning disc, the needle cylinder body is pushed into the positioning tube, and when a needle head pierces into the animal body, the needle cylinder body can be prevented from generating large angular deviation through the positioning tube, and the needle head is prevented from being bent or broken; and stable injection by medical staff can be facilitated.

The invention discloses a vibration casting molding system for a high-aluminum castable and a molding process of the vibration casting molding system, and belongs to the field of high-aluminum casting. A vibration casting molding system for high-aluminum castable comprises a base and further comprises a vibration table, a conveying assembly arranged at the top end of the base, a supporting structure arranged on one side of the vibration table, a separation structure arranged at the top end of the base, a material injection structure arranged at the bottom end of the conveying assembly and a suspension assembly arranged on one side of the vibration table. The hydraulic cylinder drives the moving rod to move, so that the push block pushes the connecting rod to move upwards through the roller, and the push plate replaces a supporting spring to provide support for the vibration frame. By means of the design, the effective supporting function of the vibration frame is achieved, a supporting spring is stably replaced in the pouring mold conveying process, shaking of the vibration frame is greatly reduced, meanwhile, the placing height of the vibration frame is limited, it is ensured that the vibration frame is perfectly aligned with the storage frame, and therefore the smooth operation that the device automatically discharges the pouring mold is achieved.

The present invention provides a manufacturing device and a manufacturing method for a double-layer soft-package hard enamel product, which belongs to the field of medical education equipment and solves the problems that the existing enamel products are all single-layer products and have low manufacturing efficiency. The manufacturing device includes a base and two elevators. A rotating mechanism and an injection mechanism are provided at the upper end of the base. A lifting plate is provided between the two elevators. A rotating mechanism is provided between the lifting plate and the injection mechanism. A demolding mechanism, a heating box, a spray cooling box and a blowing cooling box are provided in sequence between the lifting plate and the base. Four hinged molds are provided on the rotating mechanism. The manufacturing method includes the following steps: raw material proportioning; primary loading; primary injection, secondary loading; heating and firing; primary cooling; secondary cooling; secondary feeding, re-loading; firing and cooling, product demolding; mold closing, and re-preparation. The present invention can efficiently perform injection, one-layer firing, primary cooling, secondary cooling, two-layer firing and finished product demolding in an assembly line.

The utility model relates to the technical field of medical auxiliary tools, in particular to an insulin sprayer which comprises a sprayer body used for spraying insulin, and an auxiliary mechanism used for being tightly attached to the skin of a patient is arranged at one end of the sprayer body. The other end of the sprayer body is provided with an adjusting mechanism used for simply and conveniently applying pressure to the injection button. By arranging the adjusting mechanism, the device can electrically press the injection button, the strength needed by a patient during use is reduced, the micro motor is adjusted and controlled through the touch control switch, the micro motor drives the driving gear to rotate, and therefore the fixed gear ring drives the threaded thin wall to rotate in the threaded groove; according to the insulin injection device, the pressure applying plate applies pressure to the injection button, so that insulin injection is completed, a patient can be self-sufficient when needing to use the insulin injection device, meanwhile, the button can still be manually pressed through the round hole a and the round hole b, and the applicability of the device is improved.

The infusion device comprises an infusion tube, a connecting piece, an injection suite and a clamping piece, the connecting piece is fixedly arranged at the position of a tube body of the infusion tube in a penetrating mode, the injection suite is communicated with one end of the infusion tube in a sleeved mode, the clamping piece is perpendicularly communicated with the other end of the infusion tube, a fixing piece is arranged between the connecting piece and the clamping piece, and the fixing piece is fixedly connected with the connecting piece. The fixing piece is slidably connected to the position of a tube body of the infusion tube in a sleeving mode, the clamping piece comprises a first elastic clamping piece and a second elastic clamping piece, and the first elastic clamping piece and the second elastic clamping piece are attached and fixed to the other end of the infusion tube in a linear mode; according to the utility model, one end of the infusion tube is vertically communicated with the clamping piece, and the clamping piece can be stably clamped on one side of the tympanic membrane through matching with the fixing piece, so that the tympanic membrane can be placed in the tympanic chamber for a long time; besides, one side of the connecting piece is fixedly connected with a hanging lug, the hanging lug can be stably attached to the auricle position of the patient, and medicine injection can be completed at an external auditory meatus opening through a medicine injection hole formed in the injection suite.

The invention discloses a shoe manufacturing mold based on 3D printing, and relates to the technical field of shoe manufacturing molds, the shoe manufacturing mold comprises a base plate mechanism, the top of the base plate mechanism is fixedly connected with a top plate mechanism, and the top of the top plate mechanism is fixedly connected with a material injection mechanism. The problem that the production quality of shoes is affected due to the fact that a mold is exposed in air for a long time and is easily corroded by pollutants such as dust and water vapor is solved, specifically, during shoe manufacturing, a motor is started, an irregular fluted disc is driven to rotate through a transmission device, then a mold box connecting disc is driven to rotate, a mold outer box body is aligned with a rectangular groove of a top plate, and the mold outer box body and the rectangular groove of the top plate are fixed. When the irregular fluted disc is meshed with the irregular gear, the push-pull plate is pushed to drive the push rod to move upwards, the mold box is jacked to the top of the top plate, the mold cover is opened, the material is injected to the rear cover, the motor is restarted, and the system enters the next cycle.

This invention relates to the field of casting technology. It discloses a flow-controlled, slag-avoiding single-line gating and riser system and a casting mold, including a single-line gating precisely connected to the casting mold body. A core mechanism is integrated at the outlet end of the single-line gating, corresponding to the cavity inlet, to achieve flow control and anti-overflow functions. The core mechanism includes a folding mechanism and an anti-deviation mechanism, which work together to achieve precise control of the molten metal flow rate, avoiding deviation and leakage. The single-line gating interior is equipped with an anti-nodule mechanical scraping structure and a stepped slag-avoiding structure, used respectively for real-time cleaning of metal nodules on the inner wall of the gating, layering and settling of slag, and guiding the smooth flow of molten metal. The system has a reasonable structure, reliable operation, and can effectively reduce internal defects in castings, improve casting quality, and increase production efficiency.

The utility model discloses a flow resistance testing device suitable for a direct-acting solenoid valve, which belongs to the field of valve tests and comprises a pressure-bearing water tank, a testing pipeline and a collecting water tank, a water inlet of the pressure-bearing water tank is communicated with an injection pipeline, and the injection pipeline is communicated with a water source. The test pipeline is communicated with a water outlet of the pressure-bearing water tank, a pressure detection component is arranged on the test pipeline, and one side of the test pipeline is communicated with the direct-acting electromagnetic valve. The collecting water tank comprises a containing cavity, and the containing cavity is communicated with the drainage pipeline; the collecting water tank is further provided with a mass flow detection component. The utility model provides a flow resistance testing device suitable for a direct-acting solenoid valve, which can adapt to direct-acting solenoid valves with different performances, and can realize accurate testing of flow resistance of the direct-acting solenoid valves with different performances. The flow resistance test cost of the direct-acting solenoid valve can be obviously reduced, meanwhile, the flow resistance test can be carried out on the direct-acting solenoid valve at any time, and the flow resistance detection efficiency of the direct-acting solenoid valve is improved.

The utility model discloses an alcohol product discharging device which comprises a plurality of storage tanks fixed through a support, each storage tank is further provided with a pressure release valve and a liquid level meter, the upper ends of the storage tanks are each provided with a liquid inlet branch pipe and a gas inlet branch pipe through a three-way valve, and the liquid inlet branch pipes are jointly connected with a liquid inlet main pipe through a buffer tank; a first electromagnetic valve is installed on the liquid inlet main pipe, a first pressure gauge is installed at the position, located on the connecting flange and the first electromagnetic valve, of the liquid inlet main pipe, the multiple air inlet branch pipes are jointly connected with an air inlet main pipe, liquid outlet branch pipes are installed at the bottom of the storage tank, and the two liquid outlet branch pipes are connected with a liquid outlet main pipe through a second electromagnetic valve. And a third electromagnetic valve is mounted on the liquid outlet main pipe. According to the device, unloading can be provided for a large storage tank, self-inspection of the leakproofness of the device can be completed in the whole process, too large washing cannot be caused to a pipeline in the unloading stage, the whole unloading process is stable, safe and efficient, and the final unloading link and the valve can be frequently operated and are easy to maintain.

The utility model discloses a liquid pesticide proportioner, and particularly relates to the technical field of pesticide proportioning, the liquid pesticide proportioner comprises a proportioning assembly, the top of the proportioning assembly is in threaded connection with three pesticide dispensing assemblies, the proportioning assembly comprises a proportioning kettle, a motor cavity is formed in the bottom in the proportioning kettle, and a motor is arranged in the motor cavity. According to the liquid pesticide proportioning device, the three pesticide dispensing assemblies are arranged, so that three different pesticides can be sucked at a time, the pesticide dispensing steps do not need to be repeatedly taken by proportioning personnel, and the liquid pesticide proportioning device is simple in structure, convenient to use and high in practicability. Meanwhile, the piston can be slowly and stably pushed to move in the pesticide adding cavity by controlling the rotation of the adjusting screw rod, so that the required dosage can be stably injected into the proportioning cavity, the proportioning precision can be improved, residual pesticide in the pesticide adding cavity can provide pesticide for next proportioning, multiple pesticide proportioning operations can be realized, and the pesticide proportioning efficiency is improved. And the practicability of the proportioning device can be effectively improved.

The invention discloses an infrared and visible light image fusion method based on semantic prior. The method comprises the following five steps: defining a source input image and network structure parameters, constructing a three-level optimization objective function, constructing a grid coding network by adopting a residual representation module with a two-dimensional scanning characteristic, constructing a double-branch multi-level visual priori self-prompting mechanism, and performing staged processing on the characteristics by prompting an interactive fusion network. According to the method, the problem that visual quality and downstream task adaptability are difficult to consider in an existing method is effectively solved, semantic consistency, space structure integrity and visual effect of the fused image are remarkably improved, dependence on manual annotation is reduced, generalization ability and robustness of a model in a complex scene are enhanced, and the method is suitable for popularization and application. The method is suitable for multiple fields of robots, remote sensing, automatic driving and the like.

The utility model discloses a mold for integral injection molding of mesh cloth and an insert. The mold comprises a movable mold, a fixed mold and a positioning mechanism, the metal insert to be subjected to injection molding is suitable for being inserted into the corresponding position of the movable mold, and the screen cloth to be subjected to injection molding is suitable for being placed on the movable mold; the positioning mechanism is mounted on the movable mold and is suitable for bending and positioning the two bent side positions of the screen cloth; the fixed mold is suitable for being combined with the movable mold to form a cavity wrapping the metal insert and the mesh cloth, and the mesh cloth is tensioned between the fixed mold and the movable mold through a tensioning structure. The injection molding device has the beneficial effects that the metal insert to be subjected to injection molding and the mesh cloth are placed in the same mold, the stability in the injection molding process is guaranteed through insertion of the metal insert, meanwhile, the mesh cloth is positioned and tensioned through the positioning mechanism and the tensioning structure, then it is guaranteed that the injection-molded safety airbag has high precision, and the injection molding efficiency is improved. And the required product can be obtained through one-time injection molding, so that the production efficiency of the air bag restraint system can be effectively improved.

The utility model relates to the technical field of primary explosive production tray distribution equipment, in particular to a primary explosive production liquid tray distribution device which comprises a rack, a kettle body used for primary explosive production is arranged on the surface of the top end of the rack, and a corrugated pipe communicated with the discharging end of the kettle body is assembled on the surface of the bottom end of the rack. In the using process of the initiating explosive production liquid distribution equipment, a pneumatic telescopic rod at the bottom of the rack can operate to conveniently push a ring seat to move, and the ring seat drives a spray pipe, a pneumatic valve body and a flow valve to be close to a suction filtration drying disc; then pneumatic valve bodies at the bottom of the kettle body and the bottom of the flow valve operate, the turbid liquid is guided by a corrugated pipe to penetrate through the flow valve and enter a spraying pipe, the turbid liquid is released into a suction filtration drying disc through the spraying pipe, and a pneumatic telescopic rod operates and slowly retracts in the releasing process; therefore, the spray pipe is driven to be slowly separated from the suction filtration drying disc, and turbid liquid can be conveniently and more stably added into the suction filtration drying disc.

The utility model discloses a circulating heat dissipation oil duct, which relates to the technical field of oil ducts and comprises an oil inlet pipe, an oil pump is fixed at one end of the oil inlet pipe, the oil inlet pipe is fixed with an external cooling oil pipeline through one end of the oil inlet pipe, a pore plate is driven by a connecting pipe to be fixed with the outer surface of a groove block, and the outer wall of a limiting column is sleeved with the inner wall of a connecting hole. One side of the limiting column is matched with the inner wall of a groove formed in the outer surface of the supporting plate, a power switch externally connected with an oil pump is conveniently turned on, the oil pump improves the pressure of cooling oil in an oil inlet pipe and conveys the cooling oil into a groove block, and the device can conveniently and evenly distribute the oil to each brake; the outer surface of the oil outlet pipe is fixed to the outer wall of the groove block, then one side of the connecting plate makes contact with the outer surface of the groove block, the limiting block fixed to the connecting plate is matched with the inner wall of the limiting groove, the installation stability of the oil outlet pipe on the outer surface of the groove block is conveniently improved, and therefore cooling oil can be evenly distributed into the brake.

This invention belongs to the technical field of oil drilling equipment, specifically a particle injection device for oil drilling, including a particle tank, which is a parallel double tank that can be used alternately; an outlet pipe is installed at the lower end of the particle tank, and an regulating pipe and an injection pipe are sequentially installed on the outlet pipe. A nozzle pipe and a mixing pipe are respectively installed at both ends of the injection pipe, and the mixing pipe is connected to the main manifold; a spiral plate is installed inside the mixing pipe; a control hose is installed inside the regulating pipe, and a control pipe is installed on the regulating pipe, connecting the control hose and the inner wall of the regulating pipe, and the control pipe is connected to an external hydraulic pump; this invention has a simple structure, can impact and agitate the particles in the tank to prevent particles from clogging the outlet, and at the same time, agitate the particles to make the particles and drilling fluid evenly mixed, while continuously controlling and adjusting the particle injection volume to change the concentration of injected particles.

The invention relates to an impurity uniform filling device and method for aviation fuel filter testing, and relates to the field of filtering performance detection, the impurity uniform filling device comprises an impurity-containing aviation fuel storage device, and a first internal circulation unit and a second internal circulation unit which are communicated with the impurity-containing aviation fuel storage device; the first internal circulation unit comprises a first pump; the second internal circulation unit comprises a first valve, a second pump, a second valve, a third valve, a fourth valve and a fifth valve which are connected in sequence; a filling end is arranged between the third valve and the fourth valve; the material inlet pipe diameter in the filling end is larger than or equal to the material outlet pipe diameter; the fourth valve is connected with a hybrid aviation fuel storage device through a back pressure valve; and the hybrid aviation fuel storage equipment is provided with stirring equipment. The filling device provided by the invention ensures that solid particles in the pipeline can be uniformly dispersed in aviation kerosene to form uniform impurity liquid in the aviation kerosene filter testing process by introducing the double internal circulation pipelines and matching the multi-section filling design with the stirring equipment, so that the performance testing accuracy of the aviation kerosene filter is improved.

This utility model discloses a light-shielding syringe, including a syringe barrel. The syringe barrel is equipped with a light-shielding tube for shielding the drug from light and a push rod for injecting the drug. The light-shielding tube is printed with scale lines. This utility model uses the scale lines on the light-shielding tube to replace the drug volume scale lines on the syringe barrel. By using a scale indicator ring that is on the same horizontal line as the piston, the position of the scale indicator ring indicates the position of the piston inside the syringe barrel. When the push plate is pushed to make the piston squeeze the drug inside the syringe barrel to inject the patient, the position of the scale indicator ring on the light-shielding tube is the injection volume of the drug. Thus, the injection dosage can be clearly specified through the scale indicator ring, making it easy to control the injection volume of the drug without the need for manual estimation, thereby making the drug injection more stable.

The utility model relates to medical instrument technical field discloses a needleless injector, including liquid pass main part, needleless injection head and liquid outlet valve, liquid pass main part is equipped with liquid outlet chamber, transition chamber and power chamber, and is equipped with first piston in power chamber, needleless injection head is equipped with distribution chamber and at least two injection holes in, and injection hole intercommunication distribution chamber and outside, liquid outlet valve includes valve body and first valve core, and is equipped with axial through in valve body, and with distribution chamber opposite liquid flow channel, and the outer periphery of first valve core and the inside wall of liquid outlet chamber have first gap, and first valve core is equipped with first liquid guide groove in the end away from transition chamber, and first liquid guide groove sets up towards valve body opening, and with liquid flow channel, first gap intercommunication, and first valve core sets up in liquid outlet chamber one end close to transition chamber, and first valve core can along axial reciprocating movement with transition chamber in medicine liquid pressure change to make first gap and transition chamber communicate or disconnect. The utility model discloses a needleless injector, and the injection efficiency is high, and injection effect is stable.

The invention relates to the technical field of production of electrochromic hollow glass, in particular to a special special-shaped hollow glass argon filling process which comprises the following gas filling steps: 1, placing hollow glass by taking a long side as a bottom which is horizontal, arranging a gas needle on a sealing structure corresponding to the bottom of an inner cavity of the hollow glass, an exhaust hole is formed in the sealing structure corresponding to the highest position of the inner cavity of the hollow glass; secondly, an argon concentration detection module is arranged to detect the concentration of argon in the hollow glass in real time; thirdly, the air needle is connected with an air source, inflation is started, and the inflation pressure ranges from 2 bar to 5 bar; fourthly, when the argon concentration detection module detects that the argon concentration close to the exhaust hole in the inner cavity of the hollow glass reaches the standard, inflation is finished, the gas source is rapidly closed, and the exhaust hole is closed. The holes are formed in the sealing structure at the top of the hollow glass and avoid the spacing bars to serve as the exhaust holes, the exhaust holes conduct natural exhaust, balance of air pressure inside and outside a cavity of the hollow glass is kept, air is naturally and orderly exhausted, and the inflation efficiency is improved.

The invention discloses a full-automatic filling device for can production, and belongs to the technical field of can filling, the full-automatic filling device comprises a can body conveying mechanism, and further comprises a movable filling mechanism arranged above the can body conveying mechanism and used for periodically executing lifting motion to perform continuous and stable filling; the blocking and separating mechanism is arranged below the movable filling mechanism, the blocking and separating mechanism is triggered to be opened when the movable filling mechanism descends to execute filling, and the blocking and separating mechanism is automatically closed when the movable filling mechanism completes filling and ascends to reset, so that an outlet of the movable filling mechanism is isolated; therefore, according to the blocking and separating mechanism, before filling is started and after filling is finished, the multiple blocking pieces are closed under the action of the torsional spring, the filling nozzle is isolated from the conveying belt, any liquid possibly remaining or dripping from the nozzle is directly intercepted and stored, the possibility that the liquid drips to the conveying belt is eradicated, the production environment is improved, and the production efficiency is improved. The problem of pollution caused by drip leakage of the nozzle is solved.

According to the technical scheme, the deformation joint leakage filling device is characterized in that the deformation joint leakage filling device comprises a grouting pipe, one end of the grouting pipe is provided with a tail end, and the outer portion of the tail end is in threaded connection with a connector; the fixing assembly is arranged outside the grouting pipe and used for fixing the grouting pipe, the fixing frame is arranged, the fixing frame is movably installed outside the grouting pipe, the fixing frame can be firmly connected with peripheral structures (such as the building structure surface and a supporting object) through fixing bolts, and the grouting pipe can be effectively prevented from shifting; meanwhile, when the depth of the grouting pipe penetrating into the deformation joint needs to be adjusted, the fastening bolt can be unscrewed and adjusted to the proper position, then the fastening bolt is tightened, different grouting requirements are met, after the grouting pipe is fastened through the fastening bolt, shaking of the grouting pipe during grouting can be effectively reduced, and the grouting pipe can be stably fixed through stabilizing the grouting pipe; the grout can be uniformly and stably injected into a target area, and the compactness and integrity of grouting are improved, so that the engineering quality is improved.