18results about How to "Reduce seal" patented technology

The invention discloses a suspension type viscosity and density on-line measuring device and a suspension type viscosity and density on-line measuring method. The device comprises a cavity, a rotating part, a reference rotor, a suspension rotor, a torsional elastic piece and a distance measuring sensor, the rotating part is fixedly connected to the cavity; the reference rotor is fixedly connected to the outer wall of the rotating shaft, synchronously moves along with the rotating shaft and is higher than the liquid level of measured liquid; a suspension detection end is arranged at the upper end of a suspension body of the suspension rotor, the suspension body is connected with the rotating shaft through a torsion elastic piece, the suspension body suspends in detected liquid, the suspension detection end is exposed out of the detected liquid, and the suspension rotor is driven by the rotating shaft to rotate; the distance measuring sensor fixed in the cavity measures the rotating speed of the reference rotor, the axial displacement of the suspension detection end and the phase difference between the reference rotor and the suspension rotor so as to calculate the viscosity and density of the liquid to be measured. The device has the effects of measuring the density and the viscosity of the liquid in real time and being high in measurement precision.

The invention discloses an integrally-formed vaccine storage tank and a processing method thereof, and relates to the technical field of mechanical engineering. The bottom of the sealing assembly is fixedly connected with the outer wall of the storage tank body; and the sealing assembly comprises an inner sealing cap, the inner wall of the inner sealing cap is in threaded connection with the outer wall of the top of the storage tank body, the outer wall of the storage tank body is fixedly connected with a sealing table, and the outer wall of the top of the sealing table is in threaded connection with an outer sealing cap. The storage tank body is designed to be integrally formed, the structural integrity of the tank body is ensured, potential leakage risks and structural weaknesses are reduced, the overall stability and reliability of the storage tank are improved, the integrally-formed structure is free of welding seams, so that vaccines cannot remain in the welding seam defects, cleaning is very convenient, vaccine pollution is avoided, and the service life of the storage tank is prolonged. And the cleaned storage tank can be reused, so that the cost is saved.

This application discloses a one-way valve for automotive piping systems, relating to the field of one-way valve technology. The application includes a valve housing with an annular groove in its inner middle section. An abutment ring is fixedly connected inside the valve housing. A mounting platform is fixedly connected inside the valve housing, and a compression groove is formed inside the mounting platform. An elastic airbag is fixedly connected inside the compression groove. A T-shaped slide rod is fixedly connected to one end of the elastic airbag. An insertion hole adapted to the T-shaped slide rod is formed at one end of the mounting platform. One end of the T-shaped slide rod passes through the insertion hole and is fixedly connected to a valve plug adapted to the abutment ring. This application utilizes the elastic airbag and internal gas pressure to assist a spring in pushing the valve plug against the abutment ring, thereby creating contact. Simultaneously, the elasticity of the airbag absorbs some of the impact and vibration experienced by the valve housing, mitigating sealing problems caused by vibration. Furthermore, when the spring experiences metal fatigue, the elastic airbag can serve as a backup mechanism to ensure the system continues to operate normally, effectively improving the reliability of the device.

The utility model provides a vehicle charging seat, which relates to the technical field of connectors, and comprises an integrally formed hollow base shell, the side wall of the base shell is provided with an insertion port, an installation cavity communicated with the insertion port is formed in the base shell, and the top of the base shell is provided with a plurality of installation holes penetrating through the installation cavity. Each mounting hole is provided with an upper port positioned above the mounting cavity and a lower port positioned below the mounting cavity; the PCB is inserted in the longitudinal direction through the insertion opening and is fixed in the mounting cavity, and one end of the PCB extends to the insertion opening and forms an electric connection part used for being connected with external equipment; each terminal penetrates through the upper port of the corresponding mounting hole from top to bottom and is inserted into the lower port, and the part, located in the mounting cavity, of each terminal is electrically connected with the PCB. The vehicle charging seat adopts the integrally formed hollow base shell, so that the number of parts of a product is reduced. The production cost is reduced, the assembly process is simplified, and the production efficiency is improved.

The invention discloses dimming glass and a preparation method thereof, and belongs to the technical field of glass. The dimming glass comprises a first glass substrate, a first metal layer, a first orientation layer, a dye liquid crystal layer, a second orientation layer, a second metal layer, a second glass substrate and an annular glue layer; a first metal layer is arranged on the first glass substrate, and a first orientation layer is arranged on the first metal layer to obtain a first plywood; a second metal layer is arranged on the second glass substrate, and a second orientation layer is arranged on the second metal layer to obtain a second plywood; a dye liquid crystal layer is poured between the first metal layer of the first plywood and the second metal layer of the second plywood; an annular glue layer is arranged on the outer ring of the dye liquid crystal layer and is used for bonding the first plywood and the second plywood; the thickness of the first metal layer and the second metal layer is 5-20 nm, and the used metal has a near-infrared reflection effect. The dimming glass is free of local black spots, uniform in dimming and high in yield during manufacturing.

The utility model relates to a diesel generating set chassis oil inlet and return port sealing structure, and relates to the technical field of diesel generating sets, the diesel generating set chassis oil inlet and return port sealing structure comprises a chassis shell, the chassis shell is provided with an oil inlet and return port, and the chassis shell is provided with a flange seat and a flange plate; a connecting assembly is arranged on the flange plate, and the flange plate and the flange base are connected to the chassis shell through the connecting assembly. An oil inlet and return pipe is arranged on the flange plate, a sealing assembly is arranged between the flange plate and the flange seat, and the sealing assembly is used for sealing a gap between the flange plate and the flange seat. According to the chassis shell, an asbestos gasket can be omitted, and then the sealing effect of the chassis shell is improved.

The utility model belongs to the technical field of wine jar, specifically relates to a integrally formed glass wine jar, it includes jar body, characterized by: the lower part of jar body is equipped with the valve seat of integrally forming with jar body, is equipped with the valve cavity in the valve seat, the upper end of valve cavity is the mounting port, the lower end is communicated valve nozzle, the inner diameter of valve nozzle is less than valve cavity, and valve cavity is linked together with jar body, still include valve cover and elastomer, valve cover can be assembled on the mounting port, the top wall of valve cover is equipped with through -hole, is equipped with valve rod in through -hole, the lower part of valve rod is located in valve cavity, the lower part of valve rod has valve head, valve head can block valve nozzle, the lower end of elastomer is connected valve rod, and the upper end is connected valve cover, the jar only needs to install valve cover and valve rod on the valve seat, reduces the connection between valve seat and jar body and the sealing of junction, not only has simplified the connecting structure between discharge valve and jar body, still makes the connection between discharge valve and jar body and the service life of jar body, avoids the connecting part of both to leak due to the sealing problem.

The present invention relates to a solenoid valve with a hard seal structure, comprising a valve body with a fluid channel and a receiving chamber provided therein, and a valve assembly installed in the receiving chamber, wherein the fluid channel and the receiving chamber are connected; the valve assembly comprises a liquid inlet seat, a valve core matched with the liquid inlet seat for closing or opening the fluid channel, and a driving mechanism for driving the valve core to reciprocate; the liquid inlet seat is provided with a guide hole for allowing the lower end of the valve core to extend therein, the middle section of the liquid inlet seat is provided with a plurality of liquid inlet holes arranged along the circumference of the liquid inlet seat, the lower section of the liquid inlet seat is provided with a valve core fluid channel and a flow channel inclined surface located at the upper part of the valve core fluid channel for regulating the flow rate, and the valve core comprises a large diameter section, an inclined surface section, a small diameter section and a valve core end inclined surface from top to bottom. Compared with the prior art, the present invention adopts a hard seal assembly method, which is not easy to cause leakage and greatly increases the service life of the solenoid valve.

The invention discloses a long-term sealing pipeline stress reduction device and a safety performance detection system, and relates to the technical field of pipeline stress reduction. The telescopic structure of the pipeline stress reducing device comprises a short pipe, a sealing sleeve assembly welded with the short pipe into a whole and a telescopic pipe arranged in the short pipe and the sealing sleeve assembly in a penetrating mode, the two ends of the short pipe and the two ends of the telescopic pipe are welded to the pipeline, and the telescopic pipe stretches out and draws back along with thermal expansion and cold contraction of the pipeline so as to reduce the thermal stress of the pipeline and ensure safe operation of the pipeline. The anti-falling clamping ring is welded to the inner end of the telescopic pipe, leakage accidents caused by pipeline separation due to excessive extension of the telescopic pipe are avoided, long-term sealing can be achieved after one-time installation, and maintenance is not needed.

The invention provides a method for controlling temperature rise of electronic equipment under the conditions of light, small, low thermal conductivity and low convective heat transfer, which comprises the following steps of: classifying circuit boards with different power consumptions, including high-power-consumption circuit boards and medium-power-consumption circuit boards; the metal heat insulation structure of the electronic equipment adopts an aluminum alloy product and adopts natural color anodizing treatment; a high-power-consumption circuit board is placed on the outermost side of the shell, a plurality of layers of metal heat insulation structures are arranged, and a phase-change heat insulation material structure is placed between the high-power-consumption circuit board and the instrument for heat insulation; the middle-power-consumption circuit board is placed between the shell and the instrument, and a single-side heat insulation structure is adopted for heat insulation; a temperature equalizing structure is pasted on the instrument; and performing finite element transient thermal simulation analysis to obtain the steady-state temperature of the core area of the electronic equipment under the same circuit board power consumption configuration. The temperature rise rate of the core area of the electronic equipment is solved.

The application provides an electronic heating atomization unit and device with a ventilation micro-groove structure. The electronic heating atomization unit comprises a main body, a first sealing member and an atomization core. The main body comprises a base and a protruding part arranged on the main body. The protruding part is provided with a protruding part ventilation hole for communication between the inside and the outside. The first sealing member is arranged at one end of the protruding part provided with the protruding part ventilation hole. A ventilation micro-groove structure is arranged between the first sealing member and the protruding part for guiding airflow from the outside of the protruding part to the protruding part ventilation hole. The electronic heating atomization device comprises a shell and the electronic heating atomization unit. The electronic heating atomization unit and device have simple structure and are convenient to assemble, and the sealing required between parts is reduced. Through the cooperation of the protruding part of the main body and the first sealing member and the ventilation micro-groove structure, sealing is realized while the liquid storage bin ventilation function is considered, and the stability of liquid supply to the atomization core is ensured.

The traditional Chinese medicine decoction piece rinsing equipment comprises a rinsing box body, a cleaning assembly is arranged in the rinsing box body, the cleaning assembly comprises a water tank, a traditional Chinese medicine inlet, a filtering and washing plate, a driving motor, a rotating shaft, a filter screen and a medicine outlet, the water tank is arranged on one side of the rinsing box body, the traditional Chinese medicine inlet is formed in the top of the water tank, and the traditional Chinese medicine outlet is formed in the middle of the rinsing box body. A filtering and washing plate is arranged in the moistening and washing box body, a driving motor is arranged on one side of the moistening and washing box body, in the using process, traditional Chinese medicine is manually put into the moistening and washing box body along a traditional Chinese medicine inlet, and the driving motor is manually started to drive a rotating shaft at the output end to rotate, so that a filter screen is driven to clean the traditional Chinese medicine; and finally, the moistened and washed traditional Chinese medicine is discharged from a medicine outlet, so that the technical problem that in the background technology, after the medicinal materials are soaked, due to the existence of precipitates, when the medicinal materials are taken out, the medicinal materials cannot be effectively separated from residues is solved.

The present invention provides a dishwasher water system and a dishwasher, the water system comprising an inner tank for accommodating items to be washed; a water pump arranged at the bottom of the inner tank, the water pump being provided with a washing impeller for providing washing power; a spray arm arranged in the inner tank, the spray arm having a spray chamber; at least part of the washing impeller being located in the spray chamber. The dishwasher water system provided by the present invention is conducive to shortening the water path length between the water pump and the spray arm, lowering the height of the spray arm in the inner tank, and facilitating the spatial arrangement of the dishwasher by arranging at least part of the washing impeller in the spray chamber; and avoiding the need to arrange a connecting pipe from the water pump to the spray arm, thereby saving space and operations such as connection and sealing of the connecting pipe, and thus improving manufacturing efficiency.

The invention discloses a non-contact oil and gas sealing device, comprising an outer oil retaining ring, an end cover, an oil storage box and a first conduit, wherein the outer oil retaining ring body is sleeved on the outer side of the rotating shaft and is spaced from the rotating shaft, the end cover is located on the side of the outer oil retaining ring away from the housing, the end cover is sleeved on the outer side of the rotating shaft and defines a first expansion space together with the outer oil retaining ring, the lower end of the outer oil retaining ring body is provided with a first oil outlet hole connected to the first expansion space, one end of the first conduit is connected to the first oil outlet hole and the other end extends below the liquid level of the oil in the oil storage box, the side wall of the oil storage box is provided with an oil return hole with a height higher than the liquid level of the oil in the oil storage box, and the oil storage box is connected to the oil and gas cavity of the housing through the oil return hole. Thus, the oil and gas entering the first expansion space can be introduced into the oil storage box through the first conduit, and the oil and gas in the oil and gas cavity are blocked by the oil after entering the oil storage box, and will not flow back to the first expansion space through the first conduit, thereby reducing oil and gas reflux and oil and gas leakage, and achieving oil and gas sealing.

This invention discloses a hybrid power transmission shifting system based on a parallel shaft structure, solving the technical problem that excessively large transmission dimensions lead to difficulties in hybrid power transmission structural design, or insufficient structural applicability and reliability. The invention includes an actuator and a shift fork assembly housed within the transmission housing. The actuator includes a main gearbox shifting module, a secondary gearbox shifting module, and a gear selection module. The output mechanisms of the main and secondary gearbox shifting modules move in directions parallel to the axial direction of the shift fork shaft; the gear selection output mechanism moves in a direction perpendicular to the axial direction of the shift fork shaft. The top of the shift fork assembly has shift fork selection slots, and each shift fork selection slot is staggered axially. The gear selection block has clearance fits with the shift paddle and the gear selection output mechanism, respectively; the shift block has clearance fits with the main gearbox shift output mechanism. This invention arranges the main gearbox shifting module, the secondary gearbox shifting module, and the shift fork shaft in parallel, effectively shortening the axial length of the shifting system.

The invention discloses a high-speed motor test system for refrigerant lubricated rolling bearings, comprising a refrigerant storage tank, a refrigerant pump, a high-speed motor, a heat exchanger, a bearing fluid supply pipeline, a motor fluid return pipeline, a first- and second-stage interstage pipeline of the motor, a second-stage outlet pipeline and a first-stage inlet pipeline, wherein one side of the second-stage outlet of the high-speed motor is connected with the second-stage outlet pipeline, the other end of the second-stage outlet pipeline is connected with the heat exchanger, one side of the first-stage inlet of the high-speed motor is connected with the first-stage inlet pipeline, and the other end of the first-stage inlet pipeline is connected with the heat exchanger, the first- and second-stage interstage pipelines of the motor are installed on the outer walls on both sides between the cold high-speed motors, and the two ends of the first- and second-stage interstage pipelines of the motor are connected with the outer walls of the second-stage inlet and the first-stage outlet of the high-speed motor; the invention can perform a nuclear running test on the whole machine without load through this system, eliminating the need to seal the air inlet and draw negative pressure at the air outlet, the system is simple, can be directly tested, and the work efficiency is improved.

The invention discloses a high-performance constant-temperature air source box and a control method thereof.The high-performance constant-temperature air source box comprises a box body used for storing and protecting an internal installation structure, and a valve terminal controller is detachably installed at the position, close to the bottom, in the box body and used for distributing entering compressed air; the constant temperature unit is detachably installed at the inner bottom of the box body and used for controlling the temperature of the space in the box body in real time, and the temperature sensor is installed at the position, close to the middle, of the inner side wall of the box body and used for detecting the temperature of the space in the box body in real time. The constant-temperature unit is additionally arranged in the air source box, so that the constant-temperature unit can control the temperature in the air source box in real time according to a set threshold value, elements in the air source box can be kept at the conventional temperature for use for a long time, the service life of the air source box is prolonged, and the service life of the air source box is prolonged. And the sealing problem caused by regularly opening the gas source box for maintenance by a worker is reduced.

The application discloses a wide-angle endoscope lens, which comprises, in sequence from the object side to the image side, a protective window sheet, a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a protective glass sheet and an image sensor, wherein the first lens, the second lens and the fifth lens have negative focal lengths, and the third lens and the fourth lens have positive focal lengths; the object side surface of the protective window sheet and the first lens is a plane, so that the protective window sheet is convenient to assemble, and the sealing and assembly difficulty of the lens is reduced; the combination of the first lens and the second lens with negative focal lengths is beneficial to collect large field of view light, reduce the light aperture of the lens, reduce the size of the lens, and reserve sufficient non-photosensitive areas for the sealing of the lens, so that the endoscope lens has the characteristics of extremely low cost, few lenses, large depth of field and super wide angle while ensuring the image definition of the endoscope lens.