71results about How to "Insulate the influence" patented technology

The utility model discloses a modularized intelligent mobile fungus culture cabin, which belongs to the technical field of fungus culture cabins, and comprises support columns and heat insulation boxes, the bottoms of the four support columns are all fixedly provided with trundles, each heat insulation box is internally provided with a planting frame, monitoring equipment and a detection module, one end of each heat insulation box is fixedly provided with an intelligent special all-in-one machine, and the other end of each heat insulation box is fixedly provided with an intelligent special all-in-one machine. An illumination mechanism, a fresh air pipe and a humidifying pipe are arranged in the heat preservation box in a penetrating mode, and one end of the fresh air pipe and one end of the humidifying pipe are fixedly connected with the intelligent special all-in-one machine. The chamber body is supported through the supporting columns and the frame, the strength of the chamber body is improved, the chamber body is convenient to move through the trundles, conventional cultivated land is not occupied, the placement position is flexible, management and use are more convenient, equipment operation can be remotely monitored and controlled in a batched mode through communication of the 5G Internet of Things, various cultivation parameters in the fungus cultivation chamber are accurately controlled, and the cultivation efficiency is improved. And a remote monitoring user can monitor and track real-time data of a plurality of culture cabins in a centralized manner at any time.

The invention relates to a low-temperature liquefied natural gas spray cooling performance test system and a test method, belongs to the technical field of low-temperature fuel spray cooling, and solves the problem that a test system and a test method for taking liquefied natural gas fuel as a spray cooling material are lacked in the prior art. And the performance of the liquefied natural gas fuel as the spray cooling material cannot be accurately analyzed. The test system comprises a double-layer structure spraying chamber, a nozzle, a heat source and a data acquisition system, lNG mist sprayed by the nozzle flows in the inner space of the double-layer structure mist spraying chamber; liquid nitrogen flows in the interlayer space of the double-layer structure spraying chamber and is used for low-temperature cooling of LNG spraying. According to the test system, a double-layer heat preservation structure is adopted, and the LNG partially gasified due to storage and transportation can be cooled by using low-temperature liquid nitrogen, so that the phase change heat absorption capacity of the LNG is exerted in spray cooling. And meanwhile, the influence of the external environment on the test result can be well isolated, and the external interference is reduced.

The invention relates to a combined guide rail suspended type vehicle box sliding-out system which comprises a sliding-out box, a bearing plate, a bearing box, a supporting frame, a gear, a motor, a speed reducer, a rack, a rack frame, a first guide rail, a second guide rail, a first sliding block, a second sliding block, a third sliding block and a fourth sliding block. The sliding-out box is arranged at an opening of the vehicle body, bearing boxes of the same corresponding structure are arranged below the opposite side walls of the sliding-out box, the bearing plate is fixed to the bearing boxes, the first guide rail and the second guide rail are vertically parallel and fixed to the bearing boxes through the bearing plate, the first sliding block and the third sliding block are slidably connected with the first guide rail, and the second sliding block and the fourth sliding block are slidably connected with the second guide rail. The first sliding block, the second sliding block, the third sliding block and the fourth sliding block are fixed to the supporting frame, a long-strip-shaped opening is formed in the bottom of the bearing box, and the bearing box slides back and forth at the lower end of the supporting frame through the long-strip-shaped opening. The sliding-out and withdrawing of the vehicle box body can be realized, and the use space of the vehicle is increased.

The utility model discloses a mounting structure of a large-area thin film sensor for a strain test. The mounting structure comprises a mounting adhesive, a protective adhesive and an adhesive tape, the bottom of the large-area thin film sensor is adhered to the surface of the to-be-mounted surface through mounting glue, the mounting glue between the test area and the to-be-mounted surface adopts surface mounting glue or a glue film, and the mounting glue between the circuit area and the to-be-mounted surface adopts fixing glue; the protective glue covers the top of the large-area film sensor and completely wraps the top and the side face of the whole large-area film sensor, and the adhesive tape covers the outside of the protective glue and completely wraps the outside of the whole protective glue. A regional installation mode is adopted, the circuit area is fixed by fixing glue which is easy to use, and the test area is installed by surface mount glue which needs to be pressurized, heated and cured, so that the test precision is ensured, the area which needs to be pressurized and heated is reduced, the problem that large-area pressurization and heating are needed when a meter-scale sensor is integrally mounted is avoided, and the installation speed is improved.

The invention provides an ultra-high-speed electric connector which comprises an insulating body, the insulating body is provided with a lengthwise slot, a plurality of terminal slots are formed in lengthwise side walls on the two sides of the slot respectively, and a fool-proof part is arranged in the slot and used for dividing the insulating body into a power supply and low-speed signal area and a high-speed signal area which are located on the two sides of the fool-proof part; the plurality of terminals comprise differential signal terminals distributed in the high-speed signal area and other terminals distributed in the high-speed signal area and the power supply and low-speed signal area, every two differential signal terminals are adjacent, and two sides of every two adjacent differential signal terminals are respectively provided with a grounding terminal; every two adjacent differential signal terminals and two grounding terminals located on the two sides of the two differential signal terminals form a terminal module, and the two differential signal terminals and the two grounding terminals of each terminal module and an insulating block inserted into the insulating body are formed in an embedded mode. The ultra-high-speed electric connector can enable signal transmission to be better and more stable.

The utility model discloses an electrical switch cabinet, which comprises a cabinet body, an internal circulation air pipe, an internal circulation fan, a heat dissipation air bellow and a heat dissipation fan, electrical elements are arranged in the cabinet body, an air outlet hole is formed in the upper end of the cabinet body, an air inlet hole is formed in the side wall of the bottom of the cabinet body, and an opening and closing door is movably connected to the front side of the cabinet body; the internal circulation air pipe is arranged on the outer side of the cabinet body, one end of the internal circulation air pipe is connected to the air inlet hole, and the other end of the internal circulation air pipe is connected to the air outlet hole; the internal circulation fan is arranged at the air inlet hole; the heat dissipation air bellow wraps the inner circulation air pipe, an air inlet is formed in one side of the heat dissipation air bellow, and an air outlet is formed in the opposite side of the heat dissipation air bellow; and the heat dissipation fan is arranged at the air inlet. The internal circulation of the air in the cabinet body is realized, and the air is cooled in the internal circulation process, so that the influence of external dust, water vapor, oil stain and the like can be isolated while the electrical elements in the cabinet body are cooled.

The invention discloses a high-temperature-resistant, low-smoke, halogen-free, flame-retardant and fire-resistant polyolefin cable, relates to the technical field of cables, and aims to solve the problems that a cable core twisting or welding mode is often adopted for connection of a traditional polyolefin cable in the prior art, operation is troublesome, time and labor are consumed, cable core connection of the cable cannot be conveniently carried out, and practicability is poor. The cable body comprises a cable core and a functional sleeve, the cable core comprises a wire core and an inner sheath, the wire core comprises a conductor, an inner shielding layer, an inner insulating layer and a wire core protection sleeve, one side of the cable body is provided with a connecting piece, the connecting piece is composed of a connecting column and a winding layer, the two sides of the connecting column are symmetrically provided with jacks respectively, and the winding layer is arranged in the cable body. A plurality of connecting holes are formed in the connecting column, the two ends of each connecting hole are communicated with the two inserting holes respectively, a lower conductive plate is fixedly installed on the lower portion of the interior of the connecting hole of the connecting column, a conductive block is fixedly installed in the middle of the upper portion of the lower conductive plate, and an upper conductive plate is arranged above the conductive block.

The invention discloses a three-contact manual ground wire ice-melting grounding knife-switch and a use method of the three-contact manual ground wire ice-melting grounding knife-switch. The grounding knife switch comprises a base, one end of the base is provided with a first post insulator, the upper end of the first post insulator is provided with a static contact, and the static contact is provided with a supporting seat; a first supporting frame is arranged at the other end of the base, a second supporting insulator is arranged on the first supporting frame, and a moving contact is arranged on the second supporting insulator; a second support frame is arranged at one end, close to the first support frame, of the base; a grounding contact is arranged on the second support frame; the supporting seat is rotatably connected with a contact knife, the contact knife is provided with a pull ring plate, and the other end of the contact knife is matched with a grounding contact or a moving contact. According to the invention, the switch-on of the ice-melting power supply is realized through the switch-on of the disconnecting link, the grounding of the insulated ground wire is realized through the switch-off of the disconnecting link, only one switching operation is needed, the electrical disconnection with the ice-melting ground wire side can be realized when the ice-melting power supply wire is connected or disconnected, an operator is prevented from bearing the induced voltage of the ground wire, the structure is simple, and the operation is convenient and safe.

The invention discloses a lighting street lamp capable of being automatically powered off, relates to the technical field of lighting street lamps, and aims to provide the lighting street lamp capable of being automatically powered off, which can protect a high-pressure sodium lamp from being damaged by flames and can prevent burst fragments from splashing. A lamp post is arranged in the post body, the top end of the lamp post is connected with a high-pressure sodium lamp, a glass protective cylinder covering the high-pressure sodium lamp is arranged on the post body, and a supporting component vertically matched with the lamp post in a sliding mode is arranged below the glass protective cylinder. The high-pressure sodium lamp has the technical effects that by arranging the protection part and the on-off switch, when the temperature detected by the external temperature sensor or the internal temperature sensor exceeds the safe working value of the high-pressure sodium lamp, the electromagnetic valve is electrified to work and is separated from the steel casing, and the first spring in a compressed state pushes the steel casing which is not fixed to bounce upwards; and the high-pressure sodium lamp is protected by using the steel casing.

The present invention discloses a high-performance magnetic part and a production method thereof, comprising a magnetic ring, wherein the inner and outer layers of the magnetic ring are coated with an electrophoretic layer, the electrophoretic layer located on the outer layer is coated with a thermal conductive layer, V-shaped fins are installed on the thermal conductive layer, a filling layer is filled between each V-shaped fin, and the outside of the filling layer is coated with a sealing layer. The present invention can increase the corrosion resistance and firmness of the entire magnetic ring by coating the inner and outer layers of the magnetic ring with an electrophoretic layer, and can dissipate heat from the magnetic ring in a timely manner by coating the thermal conductive layer on the outer electrophoretic layer and the V-shaped fins arranged on the thermal conductive layer, and by arranging the filling layer between adjacent V-shaped fins, the hardness of the magnetic ring can be ensured, and the influence of the external temperature on the magnetic ring can be effectively isolated, and the performance of the magnetic ring can be effectively improved by the mutual cooperation between the structures.

The present application provides a photovoltaic module for rapid indoor replacement and a method for making the same, the method comprising: providing a photovoltaic module in a preset indoor environment, obtaining the size information of the photovoltaic module; making a special profile corresponding to the photovoltaic module on a preset mold according to the size information; the special profile comprises a groove adapted to the photovoltaic module; pressing a preset silicone strip into the groove; applying structural adhesive in the groove, and bonding the photovoltaic module to the groove through the structural adhesive; forming a gap after bonding the photovoltaic module to the groove; pasting a preset closed sponge in the gap between the photovoltaic module and the groove, ensuring that the photovoltaic module is in full contact with the surface of the closed sponge to isolate the photovoltaic module from the influence of the external temperature; inserting a foam rod on the outside of the closed sponge to ensure that there is no gap between the photovoltaic module and the special profile; applying weather-resistant sealant on the outside of the foam rod to obtain the finished photovoltaic module. The problem that the existing BIPV photovoltaic module is difficult to maintain after fixed installation is solved.

The invention provides a test mold for an air-sensitive solid-state battery, and an interface micro-analysis and controllable pressure system and method, and the test mold comprises a support which comprises a top plate and a plurality of adjusting rods; the first ejector rod and the second ejector rod are oppositely arranged, and the adjusting rod sequentially penetrates through and is connected with the ejector plate, the first ejector rod and the second ejector rod; the sealing assembly comprises at least two sleeves, two openings are formed after the two sleeves are combined, the first ejector rod and the second ejector rod abut against the opening positions of the two opposite sides of the sealing assembly respectively to form a sealing cavity, the sealing cavity is used for containing the solid-state battery, and the multiple adjusting rods are used for driving the second ejector rod to move relative to the first ejector rod; and the pressure applied to the solid-state battery by the second ejector rod is adjusted. According to the application, the pressure applied to the solid-state battery can be accurately controlled, different pressure conditions are further simulated, and the air-sensitive solid-state electrolyte material is allowed to be subjected to atmospheric transfer and in-situ testing in an air-isolated environment.

The invention belongs to the technical field of laser processing devices, and discloses a laser processing head device. The laser machining head device comprises a ceramic ring, a connector assembly, a locking ring, a slag stopping assembly and a probe assembly. The ceramic ring is provided with an annular through hole; the connector assembly comprises a connector body and a nozzle, the connector body is provided with a third through hole, the top end of the connector body penetrates through the annular through hole, the bottom end of the connector body is connected with the nozzle, and the nozzle is communicated with the third through hole. The locking ring is located in the annular through hole and connected with the ceramic ring and the connector body. The slag stopping assembly is located at the bottom of the ceramic ring and connected to the connector body in a sleeving mode, the slag stopping assembly is made of metal materials, a protruding part is arranged on the outer wall of the slag stopping assembly, and the distance from the outer side edge of the protruding part to the center of the slag stopping assembly is larger than the radius of the ceramic ring in the radial direction of the slag stopping assembly; and the probe assembly sequentially penetrates through and is connected with the ceramic ring and the joint body. The laser processing head device can effectively isolate the influence of metal return slag on the capacitance head, so that the processing quality stability is high.

The invention discloses a method for promoting flower growth by using an acetylisovaleryltylosin tartrate finished product liquid fertilizer, and relates to the technical field of fertilizer preparation, and the method comprises the following specific steps: step 1, firstly, screening out 1-ethyl-3-methylimidazolium acetate ionic liquid for subsequent treatment, the preparation method has the advantages that the polylactic acid is selected as a microcapsule wrapping material, so that the acetylisovaleryltylosin tartrate can be tightly and stably wrapped, an effective protective barrier is constructed, the influence of external adverse environmental factors on the acetylisovaleryltylosin tartrate is isolated, the activity of the acetylisovaleryltylosin tartrate is powerfully guaranteed to be maintained in the storage and subsequent application process, and the stability of the acetylisovaleryltylosin tartrate is improved. The temperature-sensitive hydrogel prepared from poly (N-isopropylacrylamide) is used as an intelligent response material, the temperature-sensitive characteristic of the temperature-sensitive hydrogel is the key point for realizing intelligent regulation and control, and the hydrogel presents obviously different states at different temperatures, so that the scientificity and accuracy of fertilization are greatly improved, and the application prospect is wide. The flower can obtain proper nutrient supply in different growth stages.

The utility model discloses a safe environment-friendly packaging box with an adhesive-tape-free use function, which belongs to the technical field of environment-friendly packaging boxes, and is characterized in that the safe environment-friendly packaging box comprises a box body and a box cover, the rear end of the box cover is fixedly connected with the box body through a flexible paperboard, and support plates are clamped on the front side and the rear side in the box body; a plurality of supporting plates are arranged on the inner wall of the box body, a plurality of partition plates are clamped between the opposite sides of the supporting plates and the inner wall of the box body, and pearl wool adheres to the opposite sides of the two supporting plates, so that the problems that due to the fact that an existing conventional environment-friendly packaging box is usually pasted and sealed through adhesive tape, the original structure of the packaging box is inevitably damaged in the adhesive tape tearing process in the box opening process, and the packaging effect is poor are solved. The packaging box solves the problems that the existing packaging box is difficult to put into use again, the recycling availability of the packaging box is influenced, the used box sealing adhesive tape is difficult to degrade in the natural environment, the environmental protection property of the packaging box is reduced, the heat insulation and shock resistance are poor, and articles in the packaging box are difficult to effectively protect.

The invention discloses a near space application-oriented perovskite solar cell and a preparation method thereof. The near space application-oriented perovskite solar cell sequentially comprises a PI substrate, a first metallic TaN electrode, a hole transport layer, a perovskite light absorption layer, an electron transport layer and a second metallic TaN electrode from bottom to top, when PI is a non-transparent substrate, a TaON passivation layer is arranged around the second metallic TaN electrode, anti-reflection layers are arranged on the second metallic TaN electrode and the TaON passivation layer, and at the moment, the thickness of the second metallic TaN electrode is smaller than 5 nm; when PI is a transparent substrate, a TaON passivation layer is arranged around the first metallic TaN electrode, an anti-reflection layer is arranged among the PI substrate, the first metallic TaN electrode and the TaON passivation layer, and at the moment, the thickness of the first metallic TaN electrode is smaller than 5 nm. The invention provides a high-stability perovskite battery for near space application.

The utility model discloses a ceramic nanofiber coating material storage device which comprises a storage bin and an upper sealing plate, the upper sealing plate is in threaded connection with the storage bin, the storage bin is of a double-layer structure, a material stirring set is arranged in the storage bin, and the material stirring set comprises a rotating shaft support, a rotating shaft, a material mixing shaft, a driving motor and an air blowing assembly. The rotating shaft support is located in a through hole of the storage bin, the rotating shaft is connected to the rotating shaft support in a sleeving mode, and the mixing shaft is located on the outer side of the rotating shaft. According to the device, the comprehensive efficiency of material storage, mixing and using is remarkably improved, high quality and long service life of ceramic nanofiber materials are ensured, and the upper sealing plate is in threaded connection with the storage bin; the external environment influence is effectively isolated; the built-in material stirring group realizes uniform and efficient mixing of materials by utilizing cooperative work of a rotating shaft support, a rotating shaft, a mixing shaft and a driving motor, caking is avoided, and the dispersion uniformity before use is improved.

The invention belongs to the technical field of power equipment, and particularly provides a protective peripheral device of an electric energy metering device, which comprises a box body, a locking mechanism, an alarm module, a control box and a power supply module for supplying power to the whole device, a box door is arranged on the box body and rotationally connected with the box body through a rotating shaft, a lock cylinder mechanism is arranged on the side, away from the rotating shaft, of the box door, the locking mechanisms are symmetrically arranged on the box door on the upper side and the lower side of the lock cylinder mechanism, transmission rods are arranged between the locking mechanisms and the lock cylinder mechanism, the control box is arranged on the inner side of the box door, and the alarm module is in communication connection with the control box. The electric energy metering device has high protection performance, effectively protects the electric energy metering device from being influenced by the external environment and man-made damage, has a real-time alarm function, can timely find and deal with abnormal conditions, and is of great significance in guaranteeing stable operation of an electric power system and maintaining safety of a user.

The application relates to a replaceable optical fiber monitoring cable and a replacement method thereof, and belongs to the technical field of optical fiber monitoring. Step one: when the optical fiber in the monitoring cable needs to be replaced, a part of the outer tube, the stainless steel wire layer and the inner tube at one end of the monitoring unit in the monitoring cable are peeled off in sequence, so that one end of the optical fiber unit to be replaced is exposed; step two: aramid yarn at one end of the exposed optical fiber unit to be replaced is peeled off, and the peeled aramid yarn and aramid yarn in the optical fiber unit to be installed are uniformly wound together, and the two are integrated; step three: the other end of the optical fiber unit to be replaced is uniformly pulled out, and the optical fiber unit to be replaced is uniformly wound on the take-up frame at a constant speed; the optical fiber unit to be installed is uniformly released through the pay-off frame at a constant speed, the optical fiber unit to be installed is pulled and introduced into the monitoring cable, and the replacement of the optical fiber is realized. The application can quickly replace the optical fiber, saves time and effort, and ensures that online monitoring can be continuously carried out during the use of the overhead cable.

The invention belongs to the technical field of back contact cells, and particularly relates to a graphite boat saturation method suitable for a PECVD tunneling polycrystalline layer deposition process and application, the graphite boat saturation method comprises the following steps: depositing a silicon nitride film on the surface of a graphite boat, then starting glow for hydrogen treatment, and then depositing a silicon oxide film on the graphite boat obtained after hydrogen treatment; wherein the thickness of the silicon nitride film is 50-100 nm, and the thickness of the silicon oxide film is 375-700 nm; the hydrogen treatment conditions are as follows: the flow rate of the introduced hydrogen is controlled to be 10000 to 20000 sccm, the power is controlled to be 6000 to 10000 W, and the reaction time is 600 to 1800 seconds. According to the graphite boat saturation method, the high-quality tunneling polycrystalline layer can be deposited, the passivation level can be improved, the conversion efficiency of the battery can be improved, the influence of graphite boat saturation on previous coating can be solved, the production yield can be improved, and meanwhile, the pickling time of the graphite boat can be greatly shortened by the graphite boat saturation method.

The utility model discloses a thoracic surgery nursing auxiliary support which comprises a tray containing box, a hollow supporting column, a first tray piece and a second tray piece, the first tray piece and the second tray piece are both movably arranged in the tray containing box and covered with a protective cover plate, and the hollow supporting column is fixedly arranged in the middle of the bottom end of the tray containing box. According to the pedal type air bag type tray, the pedal base plate, the pedal type air bag and the ventilation pipeline are arranged, the pedal type air bag inflates the interior of the hollow supporting column in a pedal control mode, the hollow channel of the hollow supporting column is provided with a piston pushing block, and one end of the vertical ejector rod extends into the tray containing box and is connected with the second tray piece. And a motor does not need to be adopted for control, the structure is simple and compact, storage is convenient through a tray storage box, a protection cover plate has a good protection effect, and the influence of dust and water vapor is effectively isolated.

The sand separation device comprises a sand blasting machine body, a sand separator used for storing sand is arranged on the sand blasting machine body, a vibration assembly is arranged on the sand separator and comprises a pneumatic vibrator arranged on the outer surface of the sand separator, and the pneumatic vibrator is connected with an air source through an air control pipeline. The sand blasting device has the effect of improving the sand blasting quality of the sand blasting machine.

The present invention provides a low-temperature furnace body and a low-temperature dry body temperature calibrator including the low-temperature furnace body, the furnace body includes a furnace core and a cooling fan, the cooling fan is placed below the furnace core, the furnace core includes a foam insulation body, a thermostatic block arranged inside the foam insulation body and integrally foamed, a heat equalizing block installed in the thermostatic block, and a radiator and a cooling plate fixed on both sides of the foam insulation body, one side of the cooling plate is in contact with the thermostatic block, and the other side is in contact with the hot end of the radiator. The cross section of the thermostatic block in the furnace body of the present invention is set to an hourglass shape with wide ends and narrow in the middle, so that the thermostatic block is light in weight, small in heat capacity, and more sensitive to temperature changes, and the size of the cooling plate is also large, and the heat dissipation effect is good; the low-temperature dry body temperature calibrator of the present invention adopts a modular design, the furnace body structure layout is reasonable, the structure is compact, and the independent two air duct sealing design improves the stability of the furnace body and the temperature measurement accuracy, and is suitable for the temperature measurement of low-temperature devices under test.

The utility model relates to water conservancy technical field especially a water conservancy shunt flow regulating device, including door frame, door frame top fixed mounting has power box, power box lower extreme is connected with screw rod, screw rod outside thread is equipped with movable seat, movable seat one end fixed mounting has gate, gate slidingly arranged in door frame, door frame bottom fixed mounting has bottom sill, the back of door frame top and bottom is fixed mounting has upper support board and lower support board respectively, screw rod lower extreme penetrates upper support board and is connected with lower support board rotation, and upper support board lower surface and movable seat upper surface fixed mounting have first protective sheath, and this water conservancy shunt flow regulating device can carry out the protection to screw rod, avoids the influence transmission performance of screw rod inside residual dust or sandstone.

The invention provides a photovoltaic module for indoor rapid replacement and a manufacturing method thereof, and the method comprises the steps: providing a photovoltaic module in a preset indoor environment, and obtaining the size information of the photovoltaic module; manufacturing a special profile corresponding to the photovoltaic module on a preset mold according to the size information; the special section bar comprises a groove matched with the photovoltaic module; a preset silica gel strip is pressed into the groove; structural adhesive is smeared in the groove, and the photovoltaic module is bonded with the groove through the structural adhesive; a gap is formed after the photovoltaic module is bonded with the groove; a preset closed sponge is pasted in a gap between the photovoltaic module and the groove to ensure that the photovoltaic module is in complete contact with the surface of the closed sponge so as to isolate the influence of external temperature on the photovoltaic module; a foam rod is inserted into the outer side of the closed sponge to ensure that no gap exists between the photovoltaic module and the special profile; and the outer side of the foam rod is coated with a weather-proof sealant, and the manufactured photovoltaic module is obtained. The problem that an existing BIPV photovoltaic assembly is difficult to maintain after being fixedly installed is solved.

The present invention discloses a spray cryoablation catheter with pressure closed-loop control, which belongs to the field of medical devices. In order to solve the problems of intrapulmonary high pressure caused by the existing passive exhaust method, the spray cryoablation catheter provided by the present invention includes: a catheter connector located at the proximal end of the catheter, a catheter nozzle located at the distal end of the catheter body, and a path channel arranged in the catheter body and used for material, energy or information transmission; the path channel at least includes a working fluid delivery channel and a pressure collection channel; a regulating device is also provided, and the regulating device controls the working fluid flow rate in the regulating device based on the pressure in the pressure collection channel, thereby realizing pressure closed-loop control, so that the amount of sprayed refrigerant during treatment can be dynamically and accurately controlled to prevent intrapulmonary high pressure.

The utility model discloses a capacitor and a magnetic core structure thereof. The magnetic core structure comprises a magnetic core body and a shell, wherein the magnetic core body is provided with a hollow through hole arranged along the axial direction; the shell wraps the outer side wall of the magnetic core body and the inner side wall of the hollow through hole so that the surface of the magnetic core body can be wrapped by the shell. The protective layer is additionally arranged around the magnetic core body, so that the influence of stress on the magnetic core is isolated, and the performance of the magnetic core is prevented from being reduced due to stress.

The utility model relates to the technical field of water level measurement, and discloses a water level measuring device for a water conservancy project, which comprises a first fixed connecting piece and a second fixed connecting piece, and further comprises a support rod bolted on the surface of the first fixed connecting piece, a solar cell panel bolted at the other end of the support rod, and a water level sensor connected with the solar cell panel, an electric push rod is in bolted connection with one side of the first fixed connecting piece, and a cleaning mechanism is arranged at the acting end of the electric push rod; the protective barrel is bolted to the other end of the second fixed connecting piece, and an upper guide block is fixed to one side of an inner cavity of the protective barrel; when the device is used, under the action of the protection barrel, the influence of waves on the suspension head can be isolated, the accuracy of the suspension head during working is improved, in addition, under the action of the electric push rod and the cleaning mechanism, the purpose of cleaning the inner wall of the protection barrel can be achieved, and the practicability of the device is improved; and the normal work of the suspension head is prevented from being influenced by sundries growing on the inner wall of the protection barrel.

The utility model provides a kind of bus expansion connector of ultrahigh transmission rate, including an insulating body, with a length slot, multiple terminal slots are respectively arranged in the length side wall of the both sides of slot, an anti-stupid part is arranged in slot, for the insulating body is separated into the power supply and low-speed signal area and high-speed signal area located at the both sides of anti-stupid part;Multiple terminals, including the differential signal terminal distributed in high-speed signal area and the remaining terminal distributed in high-speed signal area and power supply and low-speed signal area, every two differential signal terminals are adjacent, and every two adjacent differential signal terminals are embedded with one insulating block inserted in insulating body Forming, insulating block is hollow at the gap between two differential signal terminals;The remaining terminals are all independent terminals inserted in corresponding terminal slot of insulating body;The bus expansion connector of ultrahigh transmission rate can make signal transmission more good and stable.

The utility model discloses an ultralow-temperature stop valve with a pressure relief device, and relates to the technical field of ultralow-temperature stop valves of pressure relief devices. The ultralow-temperature stop valve with the pressure relief device comprises a valve body, a cold-resistant protective sheet, a protective shell and a limiting unit. According to the ultralow-temperature stop valve with the pressure relief device, the structure that the cold-resistant protection unit is arranged outside the main valve body is adopted, the first protection layer is made of stainless steel, physical protection and external impact resistance are conveniently provided, the second protection layer is made of polyurethane foam, and the ultralow-temperature stop valve has excellent heat preservation performance and mechanical strength; the third protective layer is made of an aluminum silicate fiber felt material and has a low heat conductivity coefficient and good flexibility, and the cold-resistant protective unit can achieve the purposes of protection and heat preservation on the valve body main body.