15results about How to "Guaranteed pressure stability" patented technology

The utility model relates to a medicine bottle for a soft fog inhaler and a soft fog inhaling device.The medicine bottle comprises a bottle body, a plunger is arranged in the bottle body, and an inner cavity of the bottle body is divided into a sealed space for storing liquid medicine through the plunger; a filter element and an atomization chip are sequentially arranged at the outlet end of the bottle body, the filter element is located between the sealed space and the atomization chip, and the atomization chip is fixedly assembled at the outlet position of the bottle body; an elastic piece is arranged on the outer side of the atomization chip, a supporting piece is arranged on the outer side of the elastic piece, and the supporting piece is fixedly connected with the outlet end of the bottle body; when external force is applied to push the plunger, liquid medicine enters the atomization chip through the filter element and is atomized by the atomization chip to form fog drops to be sprayed out. According to the soft fog inhalation device, the medicine bottles in the soft fog inhalation device can be rapidly replaced, the atomization requirements of different particle sizes can be met, the cross contamination problem caused by different liquid medicine of an atomization chip is avoided, and the soft fog inhalation device can solve the problems that a soft fog generation driving device is high in operation difficulty, high in manufacturing cost, poor in working stability and the like.

The utility model discloses a flow guide body assembly structure, and belongs to the field of oxygen generators. The flow guide body assembly structure comprises a base plate, a mounting groove is formed in the base plate, the flow guide body assembly structure further comprises a connecting block arranged in the mounting groove, and a first air port and a second air port are formed in the connecting block; the first connecting pipe and the second connecting pipe are arranged on the connecting block; the first communicating groove and the second communicating groove are both formed in the bottom of the connecting block, the two ends of the first communicating groove communicate with the first air port and the first connecting pipe correspondingly, and the two ends of the second communicating groove communicate with the second air port and the second connecting pipe correspondingly; grooves corresponding to the first communicating groove and the second communicating groove are formed in the mounting groove; according to the utility model, the installation and the disassembly are more convenient, the downtime is reduced, the working efficiency is improved, the fixation through a rubber tube or silica gel is not needed after the installation, and the problem of gas leakage is avoided.

The utility model relates to a modified collapsible oil cylinder for a coiling machine in the technical field of collapsible oil cylinder modification, which comprises a support, a stop frame, a swivel joint, an end cover, a cylinder barrel, a flange plate and a piston, and is characterized in that the piston is coaxially connected with a piston rod, and the outer end part of the piston rod hermetically penetrates through the flange plate; an adjusting cover is installed on the inner side face of the end cover or the flange plate through a connecting piece and used for limiting the stroke of the piston. The adjusting cover is further provided with an oil way channel coaxial with the end cover oil way or the flange plate oil way. The adjusting cover is additionally arranged on the inner side of the end cover or the flange plate, the maximum displacement of the piston is directly limited, the stroke of the oil cylinder is accurately matched with the shortening amount of a reformed coiling shaft, and the problem that a steel coil cannot be pressed due to the fact that the stroke of original equipment is too long is solved; meanwhile, the adjusting cover is provided with an oil way channel, a modified hydraulic oil flow channel is free of blocking and turbulent flow, and the pressure stability of an original system is kept.

The utility model provides a whirlwind milling machine special for a short material worm, and belongs to the technical field of worm machining equipment. The problem that an existing whirlwind milling machine is low in short screw machining efficiency is solved. The whirlwind milling machine special for the short material worm comprises a machine body, a feeding mechanism assembly, a machine tool spindle assembly and a whirlwind milling head assembly, the machine tool spindle assembly is located between the feeding mechanism assembly and the whirlwind milling head assembly, the feeding mechanism assembly comprises a hopper, a lifting mechanism and a pushing mechanism, the lifting mechanism is used for lifting a workpiece upwards from the inside of the hopper, and the pushing mechanism is used for pushing the workpiece upwards from the inside of the hopper. The pushing mechanism is provided with a transversely-arranged push rod, and the push rod can push the lifted workpiece into the machine tool spindle assembly. The machine tool further comprises a tailstock mechanism which is located on one side of the whirlwind milling head assembly, and the tailstock mechanism is provided with a center which is transversely arranged and is opposite to the machine tool spindle assembly. According to the utility model, the workpiece to be processed can be designed to be shorter, the processing range is longer, the working procedures are fewer, and the processing efficiency is higher.

The application relates to the technical field of multistage compression, in particular to a hydrogen pressurizing equipment based on a multistage compression technology, which comprises a plurality of series-connected pressurizing parts and a central control module for regulation and control. The application guarantees pressure stability in the pressurizing process by arranging pressure stabilizing pipes between the vortex pipes, so that the plurality of vortex pipes can be connected in series, and the central control module is arranged to accurately monitor the pressure of the pressure stabilizing chambers in the pressure stabilizing pipes and the compression chambers in the vortex pipes, accurately control the pressure state of each pressurizing part, accurately match the multistage pressurizing, and adjust the temperature of the internal compressed gas by cooperating with the cooling pipe layer, so that pressure fluctuation caused by gas temperature change is effectively avoided; the vortex compression structure effectively reduces the vibration and noise of the whole equipment, and the series connection of the pressurizing parts can be selected in number, so that the flexibility of the multistage compression is further improved.

The utility model discloses a high-stability leather cup air pump which comprises a shell, a cavity and a power source are fixedly connected to the shell, a leather cup body is arranged on the cavity, an output shaft of the power source is connected with a movable disc through a transmission assembly, the movable disc is connected with the leather cup body and used for stretching and compressing the leather cup body, and a movable part sunken towards one side is arranged on the leather cup body. The thickness of the movable part is smaller than that of the leather cup body, a bearing is arranged in the shell, and an output shaft of the power source extends downwards to be connected with the leather cup body with the bearing; the movable part moves under the action of stretching and compression, vibration and noise generated by the movable part are reduced by reducing the thickness of the movable part, meanwhile, the output shaft of the power source is rotationally limited through the bearing, lateral deflection generated when the output shaft of the power source works is avoided, the pressure stability when the air pump works is effectively guaranteed, and the service life is prolonged.

The utility model discloses a device for measuring sound velocity in a middle-high pressure hydraulic pipeline, which relates to the technical field of measuring devices and comprises a driving shaft, a rotary valve, a transition end cover, a hydraulic pipeline, a first fiber bragg grating sensor and a second fiber bragg grating sensor. An axial output port of the rotary valve is connected with a transition end cover, and the transition end cover is connected with a hydraulic pipeline; the front end of the hydraulic pipeline is connected with a first fiber grating sensor, and the tail end is connected with a second fiber grating sensor; the rotary valve comprises a valve cover, a valve body, and a rotary valve core and a bearing which are arranged in the valve body; the driving shaft is connected with the rotary valve element, and an explosion flushing cavity and a low-pressure cavity which are isolated from each other are formed in the rotary valve element; the blasting cavity is provided with a first conical nozzle, and the low-pressure cavity is provided with a second conical nozzle; an axial output port of the rotary valve is provided with a third conical nozzle; the transition end cover is provided with a fourth conical nozzle; measurement of the propagation sound velocity of oil in a hydraulic pipeline under a certain pressure is realized.

The utility model discloses an injection oil cylinder for an injection molding machine, which comprises an oil cylinder and a piston rod, and the piston rod can extend into the oil cylinder and can move along the central axis of the piston rod in the oil cylinder; end covers are arranged at the two axial ends of the oil cylinder, so that a sealed oil cavity is formed in the oil cylinder; any end cover is connected with a displacement sensor, and the displacement sensor comprises a sensor connecting rod capable of extending into the oil cylinder; moreover, a position magnetic block capable of being matched with the sensor connecting rod is arranged at the end, close to the sensor connecting rod, of the piston rod, the position magnetic block and the piston rod move synchronously, and the displacement sensor outputs displacement signals of the piston rod by detecting magnetic field changes caused by movement of the position magnetic block. According to the utility model, the displacement sensor is directly integrated on the end cover of the injection oil cylinder, the structure is compact, the size of the whole device is reduced, and the installation space is saved; the device is compact in structure, high in measurement precision, strong in anti-interference capability and convenient to install and maintain.

The utility model relates to medical instrument technical field discloses a kind of quick assembly and disassembly mechanism of extracorporeal counterpulsation device capsule, including air pipe, gas shunt connecting seat and several capsules, capsule is arranged above counterpulsation bed, every capsule is equipped with one connection male head, the both ends of air pipe are equipped with connection female head, corresponding several second connection male head are provided on gas shunt connecting seat, one connection male head and the connection female head of air pipe one end are connected with joint, second connection male head and the connection female head of air pipe other end are connected with joint.The technical scheme of the utility model can solve the problem of the existing technology that thread connection mode leads to dismounting operation cumbersome, maintenance efficiency is low and long-term use is easy to cause gas leakage due to thread wear.

The utility model discloses an integrated connection structure of a fuel cell stack, which comprises an upper end plate, a lower end plate and a locking bolt arranged between the upper end plate and the lower end plate in a penetrating manner, and the bottom of the upper end plate is provided with a first positioning groove used for clamping the top end of a cell stack main body; the top of the lower end plate is provided with a second positioning groove for clamping the bottom end of the cell stack main body, and the elastic jacking assembly is fixedly arranged on the top surface of the first positioning groove and is used for jacking the upper end surface of the cell stack main body; and the lateral elastic extrusion parts are fixedly arranged on the side walls of the first positioning groove and the second positioning groove and are used for jacking and pressing the parts, clamped into the first positioning groove and the second positioning groove, of the cell stack main body. According to the utility model, the cell stack main body between the upper end plate and the lower end plate is locked by using the locking bolt, and the elastic jacking assembly is arranged on the upper end plate, so that the distance between the upper end plate and the lower end plate is not changed while size compensation is provided.

A reducing agent injection quantity accurate control device based on an SCR system is characterized in that a reducing agent storage box (1) is communicated with a supply pump (2), the supply pump (2) is communicated with a reducing agent pressure stabilizing pipeline UR and a pressure stabilizing valve (33), a plurality of branches are led out of the reducing agent pressure stabilizing pipeline UR, each branch is provided with a flow meter (4), a reducing agent supply electromagnetic valve (10) and an injection regulating valve (5) and then connected with a spray gun (6), and the spray guns (6) are inserted into an exhaust pipeline (7); the compressed air pressure stabilizing pipeline AR is provided with pressure regulating valves (34) which are communicated with a plurality of branches led out of the reducing agent pressure stabilizing pipeline UR in a one-to-one correspondence mode, the compressed air pressure stabilizing pipeline AR is communicated with a compressed air electromagnetic valve (8) and a spray gun (6), and a spray gun purging electromagnetic valve (9) is further connected between the compressed air pressure stabilizing pipeline AR and the reducing agent pressure stabilizing pipeline UR. The device can ensure the pressure stability of the reducing agent and the auxiliary injection compressed air on the basis of effectively reducing the equipment cost, so that the injection precision and the atomization effect are ensured.

The utility model discloses a fuel injection quantity measuring device which comprises a fuel oil / gas injection module, a fuel oil / gas supply module connected with an inlet of the fuel oil / gas injection module and a fuel oil / gas collection module connected with an outlet of the fuel oil / gas injection module. The fuel oil supply module comprises a nitrogen cylinder used for storing high-pressure nitrogen and an energy accumulator used for storing fuel oil. A first pressure adjusting device is connected between an outlet of the nitrogen cylinder and a nitrogen inlet of the energy accumulator, and a fuel outlet of the energy accumulator and an inlet of the fuel injection module are connected with a second pressure adjusting device. The fuel gas supply module comprises a gas storage tank used for storing fuel gas and a third pressure adjusting device connected between the gas storage tank and the fuel gas injection module. The fuel oil / gas injection module comprises an oil / gas rail and an oil / gas injector connected with an outlet of the oil / gas rail. And the fuel oil / gas collecting module comprises a fuel oil / gas collecting container connected with an oil / gas injection port of the oil / gas injector.

The application discloses a double-energy-storage oil-gas spring integrated damping suspension hydraulic cylinder and a vehicle, which comprises a mounting cylinder bottom, a suspension cylinder and energy accumulators, wherein the mounting cylinder bottom is internally provided with an oil passing channel and is provided with one communication port one and two communication port twos on the mounting cylinder bottom; the suspension cylinder and the energy accumulators are fixedly installed on the mounting cylinder bottom, the energy accumulators are provided in two groups, the two groups of energy accumulators are respectively located on the two sides of the radial direction of the suspension cylinder, the suspension cylinder and the energy accumulators are connected with the oil passing channel through the communication port one and the communication port two, and the suspension cylinder and the energy accumulators are connected through the oil passing channel. The application effectively solves the pressure loss problem caused by the long oil circuit of the traditional suspension system, realizes the internal transmission of the oil circuit through the integrated mounting cylinder bottom, forms the redundant pressure compensation mechanism through the symmetrical layout of the double energy accumulators, and ensures the pressure stability of the system under the continuous vibration working condition. The compact overall structure design reduces the space occupation, and meets the miniaturization demand of the suspension system of the special vehicle.

This invention discloses an environmentally friendly, low-emission bag filter dust collector, relating to the technical field of bag filter dust collectors. The dust collection box has several mounting seats evenly embedded at equal intervals at its top. An outer frame tube is threaded onto the outer side of the bottom of each mounting seat, and an inner frame tube is threaded onto the inner side of the bottom of each mounting seat. An outer bag is fitted onto the outer side of the outer frame tube, and an inner bag is embedded into the inner wall of the inner frame tube. Several through slots are formed at equal angles along the circumference at the top of the mounting seat corresponding to the position between the outer and inner frame tubes. This invention can construct a dual-channel dust collection path and a synchronous dust removal path. During dust collection, the dust collection pressure is monitored in real time, enabling automatic switching between the two paths. This indirectly achieves uninterrupted dust collection and continuous dust removal, improving the compatibility and stability between dust collection and dust removal operations, enhancing the dust collection effect, reducing the wear rate of the outer and inner bags during operation, extending their effective service life, and indirectly improving their endurance stability and working efficiency.

The utility model discloses a novel piston type energy accumulator, belongs to the field of energy accumulators, and solves the problem that an existing energy accumulator is inconvenient to select materials and process. The hydraulic cylinder comprises a cylinder sleeve, an upper end cover and a lower end cover are arranged at the two ends of the cylinder sleeve respectively, the lower end cover is detachably connected with the cylinder sleeve, a piston is installed in the cylinder sleeve in a sliding mode, a limiting step is arranged on the inner wall of the end, close to the upper end cover, of the cylinder sleeve, and the upper end cover comprises a round cover and a limiting flange. The limiting flange is arranged on the outer wall of the round cover in a surrounding mode, the round cover is movably connected in a center hole formed in the inner side wall of the limiting step in an inserted mode, the limiting flange is connected in the cylinder sleeve in a sliding and inserted mode, the limiting flange is connected to the limiting step in a clamped mode, and a first sealing ring is arranged between the limiting flange and the inner wall of the cylinder sleeve. The piston type energy accumulator provided by the utility model has the characteristics of convenience in material selection and processing while meeting the use requirements of the energy accumulator.