34results about How to "Reduced installation effort" patented technology

The invention belongs to the technical field of pole-mounted circuit breakers in power systems, and particularly relates to a pole-mounted circuit breaker integrating communication, electricity taking and traveling wave distance measurement. The solid-sealed polar pole is located on the box body, an integrated capacitor C1 is arranged in the solid-sealed polar pole, and the wire inlet side of the integrated capacitor C1 is a high-voltage terminal; a secondary side circuit is arranged in the box body, a self-integrated capacitor C1 is sequentially connected in series with low-voltage capacitors C2 and C3 of a capacitor electricity-taking power supply and a high-frequency transformer T2, and a power-frequency electricity-taking transformer T1 is connected in parallel with the C2 and C3; the protection circuit is connected to the C3 in parallel; the high-frequency transformer T2 has two groups of output windings, one group of output windings is connected in series with the traveling wave acquisition circuit, and the other group of output windings is connected in series with the carrier communication circuit. Original four independent devices are integrated into one device, functions are deeply integrated, the limitation that in a traditional scheme, a plurality of devices achieve a single function is broken through, high integration of the devices is achieved, the number of the devices and the installation space are reduced, and the installation and maintenance cost is reduced.

The invention discloses a stretch bending machine for cable car outer frame metal profile machining, and belongs to the technical field of stretch bending machines. The stretch bending machine comprises an operation table, a template, a clamp and a clamp mounting mechanism. Mounting holes are formed in the operation table, and fixing pins are movably arranged on the lower surface of the operation table; a reinforcing block is arranged on the template, a fixing column is arranged below the reinforcing block, a fixing hole is formed in the lower end of the fixing column, a fixing pin slides relative to the fixing hole, and when the fixing pin is embedded in the fixing hole, the template is fixedly installed on the operation table; a mounting groove is formed in the clamp; the clamp installation mechanism comprises an installation protrusion and a rack, the clamp is installed on the installation protrusion through the installation groove, a nut cylinder is rotationally arranged at the upper end of the clamp, a driving gear is fixedly arranged on the nut cylinder, and the driving gear is meshed with the rack. The invention particularly provides a stretch bending machine for cable car outer frame metal profile machining, and the stretch bending machine can be used for conveniently installing a template and a clamp.

The utility model relates to the technical field of pipe fittings, in particular to a liquefied natural gas pipeline installing and positioning assembly which comprises a connecting disc, the connecting disc is installed between two liquefied natural gas pipelines, flanges are fixed to the ends of the liquefied natural gas pipelines, a plurality of screws are fixed to the two sides of the connecting disc respectively, and rubber sleeves are arranged on rod bodies of the screws in a sleeved mode. One end of the screw rod is sleeved and screwed with a nut, the outer ring surface of the connecting disc is provided with a rubber cover, and the rubber cover wraps the flange; the device has the beneficial effects that the rubber cover arranged on the outer ring surface of the connecting disc can wrap and protect the screw rod and the nut. After the screw rod and the nut are in threaded connection, the rubber cover is pulled out of the containing groove and arranged on the flange in a sleeving mode, the rubber ring is arranged at the connecting position of the liquefied natural gas pipe and the flange in a sleeving mode, erosion of external water vapor to the screw rod and the nut can be effectively reduced, the service life of a connecting part is prolonged, and the maintenance cost is reduced.

The utility model relates to the technical field of clinical examination instruments, and provides a small full-automatic blood type analyzer convenient to transport and install, which comprises a cabinet body, a workbench arranged in the cabinet body, a cabinet door arranged on the cabinet body corresponding to the workbench, and a sample adding module suspended above the workbench, a suction head carrying frame, a reagent carrying frame, a diluent carrying frame, a uniform shaking and refrigerating unit and a gel carrying frame are arranged on the working table in the length direction of the working table; a heating module, a puncture module, an interpretation opening and a waste clamping groove are arranged behind the gel carrier, an interpretation module is fixed to the position, close to the interpretation opening, of the back face of the workbench, a centrifugal module is arranged behind the heating module, the upper portion of the centrifugal module is connected with the workbench in a clamped mode, and the lower portion of the centrifugal module extends to a bottom plate of the cabinet body and is fixed to the bottom plate of the cabinet body. According to the scheme, by optimizing the layout of the workbenches and cooperation among the modules, the requirements of scenes such as primary medical treatment and mobile detection for portability and reliability of equipment are met.

The invention relates to the technical field of bus ducts, in particular to a slidably-connected low-voltage bus duct and an installation method thereof.The slidably-connected low-voltage bus duct comprises a bus duct body, a conducting bar, a bus duct connection mechanism, a conducting bar moving mechanism and a sliding connection mechanism, and the bus duct connection mechanism is installed on one side of the bus duct body; the other side of the bus duct connecting mechanism is slidably connected with a guide plate, one side of the bus duct connecting mechanism is provided with a conducting bar moving mechanism used for buffering, and the other side of the conducting bar moving mechanism is provided with a sliding connecting mechanism; according to the invention, a sliding connection structure is adopted, and the sliding blocks and the sliding grooves are matched with each other, so that the bus duct can slide in the sliding grooves when being subjected to external vibration, thereby effectively buffering vibration, ensuring the connection stability of the bus duct, and prolonging the service life of the bus duct.

The utility model discloses a capillary network structure for radiation air conditioner, including main pipeline, and the capillary pipeline is equipped on main pipeline, its characterized in that still includes: support main part, support main part is vacuum, and the plug -in block is located in support main part, and the main pipeline is inserted and locked, and the support arm is located in the outside of support main part, and the adjusting block is located in the support arm, and it is used for the capillary pipeline to hold up fixed. Capillary network structure for radiation air conditioner, support main part is vacuum, and the plug -in block is inserted and locked to the main pipeline, and the lock catch plate and the clamping block are combined and clamped, and the stable main pipeline fixed structure is formed, compared with bolt, and the ribbon connection reduces the installation step, and improves the installation efficiency, and the first adjusting groove is seted up in the outside of support main part, and the support arm is slid in the groove through connecting shaft and sliding roller, can adjust support arm position according to capillary network actual arrangement demand, realizes the random setting of fixed device, avoids the problem of traditional mode space restriction.

The invention discloses an organic liquid hydrogen storage tank assembling shell structure which comprises an inner tank, an inner support is fixedly connected to the outer surface of the inner tank, the inner support is annular, an outer tank is fixedly connected to the outer surface of the inner support, and the outer tank is composed of a first tank shell and a second tank shell. The fabricated hydrogen storage tank has the advantages that all parts of the fabricated hydrogen storage tank are prefabricated and assembled in a factory, the field installation workload is small, construction is easy, and the installation period can be greatly shortened. The assembly type hydrogen storage tank adopts an advanced sealing technology and a high-strength material, so that the sealing performance and the safety of hydrogen can be ensured. The assembly type hydrogen storage tank can be customized according to actual requirements, the size and the capacity can be adjusted according to requirements, and the requirements of different users are met. The manufacturing cost of the assembled hydrogen storage tank is lower, and meanwhile, due to the characteristics of high efficiency and energy conservation, the operation cost can be reduced in the use process, and the economic benefit is improved.

This invention discloses a method for constructing concrete lining for large-section, pure circular, thin-walled steel-lined tunnels, relating to the field of underground chamber construction technology. It includes prefabricated hook-type hooks, steel plate lining, and ear plates; assembling the steel plate lining to form a lining steel template, connecting the ear plates to the outer surface of the lining steel template; binding inner and outer reinforcing meshes on the outer surface of the lining steel template; binding the straight sections of the hook-type hooks and the inner reinforcing mesh, ensuring that all straight sections are aligned in the same direction; using multiple square wooden boxes assembled into end molds to seal the ends of the lining steel template, with multiple entry windows spaced circumferentially along the lining steel template on the end molds; pouring concrete in layers from bottom to top, each layer being 450mm thick, with a 1.5-hour interval between adjacent layers. This invention eliminates the need for any openings in the steel lining, avoiding the weak points in sealing caused by traditional perforated connection methods, and ensuring the overall integrity of the steel plate lining.

The utility model relates to the technical field of composite vibration reduction engine suspension supports, and discloses a composite vibration reduction engine suspension support. One end of the fixing plate is fixedly connected with a first connecting plate, the surface of the outer side of the first connecting plate is fixedly connected with a plurality of first bolt holes, one end of each first bolt hole is provided with a bolt, one side of the first connecting plate is provided with a second connecting plate, and the surface of the outer side of the second connecting plate is provided with a plurality of second bolt holes. According to the composite vibration reduction engine suspension support, a fixing support structure convenient to disassemble is additionally arranged, a bolt can penetrate through a first bolt hole to be in threaded connection with the interior of a second bolt hole, and the first bolt hole and a second connecting plate can be connected together through the bolt. The convenient disassembly design of the fixing support structure enables the whole support to be more convenient to maintain or replace parts when the parts need to be maintained. And an operator can quickly disassemble parts of the bracket to carry out necessary overhaul or replacement work, so that the maintenance time and the downtime are reduced.

The utility model relates to water treatment equipment field, a horizontal ceramic flat plate membrane component, including support foot square tube and frame square tube, frame square tube forms the frame structure of rectangle, and four support foot square tubes are located at the corner of frame structure respectively, four support foot square tubes and the inside of frame square tube intercommunication, one of support foot square tube is as water production pipeline, another of support foot square tube is as aeration pipeline, and the rest two support foot square tubes are closed, install several aeration pipes in frame structure, and the inside of frame square tube is connected with the aeration pipe and the end, install the membrane group guard board of four periphery frames on frame structure top, install several ceramic membrane sheets in the inside vertical of membrane group guard board enclosure, and every ceramic membrane sheet all is provided with water collecting port, and the water collecting port is connected with water production pipeline through frame structure, the ceramic flat plate membrane component improves the pollution resistance, easy maintenance, structural stability, and high loading density.

The present invention discloses a floor deck support assembly, a support system and an installation method of the support system, comprising a truss and an arch assembly, wherein the truss comprises an upper chord rod, and the upper chord rod is used to support the floor deck; the arch assembly comprises a mounting plate, an adjusting bolt and an adjusting plate, wherein the mounting plate is fixed to the middle part of the upper chord rod, the adjusting bolt is threadedly connected to the mounting plate, the adjusting plate is located above the upper chord rod, the upper surface of the adjusting plate is used to support the floor deck, the lower surface of the adjusting plate is provided with a limiting groove, and one end of the adjusting bolt is inserted into the limiting groove. The floor deck support assembly of the present invention can effectively reduce the risk of the floor deck deflection.

The utility model relates to a non-contact heat exchanger for a precooling system of an air separation machine, which comprises a base, a cylinder and a cooling flow channel, the cylinder is arranged on the base, the cylinder is in a three-section type and comprises an air inlet chamber, a cooling chamber and a purification chamber which are communicated in sequence, an air inlet pipe is arranged at the upper end of the air inlet chamber, a porous fin group and a corrugated fin group are arranged in the cooling chamber, and the cooling flow channel is communicated with the cooling chamber. The two porous fin sets are arranged at the two ends of the corrugated fin set respectively, the cooling flow channel comprises branch flow channels and main flow channels, the branch flow channels are in a U shape, the branch flow channels are inserted into the barrel side by side at intervals and connected with the porous fin sets and the corrugated fin set for heat transfer, and the two ends of each branch flow channel are communicated with the two main flow channels respectively. The whole equipment is integrally designed, the integration degree is high, the installation workload of field maintenance personnel is reduced, the design that the porous fin sets are arranged at the two ends of the corrugated fin set respectively can effectively improve the heat dissipation efficiency during diameter changing of compressed air, then the length of a cooling chamber can be reduced, and the overall occupied area of the equipment is effectively reduced.

The utility model relates to the technical field of ozone generator production, and provides an ozone generator which comprises a shell and a tubular discharge unit, the tubular discharge unit comprises an inner electrode, a dielectric medium tube and an outer electrode which are installed in a sleeved mode, and a first fixing plate and a second fixing plate are arranged at the two ends of the shell respectively. The tubular discharge unit penetrates through the discharge unit first mounting hole and the discharge unit second mounting hole, the outer diameter of the outer electrode is smaller than 4.8 mm, the outer electrode is sleeved with a first sealing ring and a second sealing ring, the first sealing ring seals a gap between the discharge unit first mounting hole and the outer electrode, and the second sealing ring seals a gap between the discharge unit second mounting hole and the outer electrode. And the second sealing ring seals a gap between the second mounting hole of the discharge unit and the outer electrode. According to the utility model, the sealing mode of the external electrode of the micro-diameter discharge unit and the corresponding efficient external electrode penetrating pipe are adopted, so that the ozone generator of the micro-diameter discharge unit can be efficiently and quickly produced in batches, the concentration of generated ozone is improved, and meanwhile, the ozone production cost is reduced.

The utility model discloses a positioning system for belt conveyor protection equipment, which comprises a plurality of protection equipment, a plurality of encoders, a communication bus and a communication gateway, and is characterized in that each encoder is connected with one corresponding protection equipment or paired protection equipment; the communication bus is in jumper connection with the plurality of protection devices and the plurality of encoders, and the plurality of encoders are connected with the communication bus in parallel; the communication bus is connected with the communication gateway, the communication gateway is connected with external control equipment, and the communication bus transmits positioning signals with the communication gateway based on an adopted communication protocol, so that communication interaction between the plurality of protection equipment and the external control equipment is realized. According to the system, a bus control framework is adopted, so that belt protection fault points can be accurately and quickly positioned on the basis of reducing laid cables and simplifying a circuit structure.

The invention discloses a universal generator test connection transmission device, comprising an inner boss connection plate, a transmission pin, a first elastic sleeve, a second elastic sleeve, a transition plate, a special nut, a self-made screw pin, a screw, and a stop screw; the transmission pin passes through the hole on the transition plate, the second elastic sleeve, the boss of the inner boss connection plate, and the first elastic sleeve in sequence, and the transmission pin is fastened by a special nut and a stop screw, the self-made screw pin passes through the threaded hole on the transition plate from the notch of the inner boss connection plate and is inserted into the pin hole of the rotor dynamic balance connection plate, and the screw passes through the through hole on the transition plate from the notch and is connected to the dynamic balance connection plate. The invention has the advantages of elasticity, quick installation, and universality.

This invention provides a retractable tail nozzle connected to the engine tail section, comprising: a connecting assembly including a connecting element and a first cylindrical thin-walled tube, the air inlet end of the first cylindrical thin-walled tube being detachably connected to the engine tail section via the connecting element; a straight section including a second cylindrical thin-walled tube, the air inlet end of the second cylindrical thin-walled tube being sleeved on the outer wall of the air outlet end of the first cylindrical thin-walled tube; and a round-to-square section connected to the air outlet end of the second cylindrical thin-walled tube. This invention solves the problem of difficult engine installation in modern stealth aircraft by reducing engine installation workload through the retractable tail nozzle and utilizing the different coefficients of linear expansion of different materials to achieve sealing of the tail nozzle during operation.

The utility model relates to LED light modulation technical field, specifically disclose a kind of all-in-one LED light modulation circuit, including power module, control module, DMX512 light modulation module, DALI light modulation module, VR light modulation module and LED drive module, the control module is respectively electrically connected with power module, DMX512 light modulation module, DALI light modulation module, VR light modulation module and LED drive module;The DMX512 light modulation module receives DMX512 light modulation signal and is transmitted to control module, the DALI light modulation module receives DALI light modulation signal and is transmitted to control module, VR light modulation module receives manually regulated VR light modulation signal and is transmitted to control module;Control module will DMX512 light modulation signal, DALI light modulation signal and VR light modulation signal are handled and converted, and output LED control signal to LED drive module, LED drive module drives LED light according to LED control signal and carries out light modulation.The utility model high integration, reduce production cost, support multiple light modulation mode, can satisfy the light modulation demand under different scenes, it is convenient to install and maintain.

This utility model discloses a five-axis dispensing machine, including a worktable, a mounting plate, a dispensing head, and a moving plate. An X-axis motion mechanism and a Y-axis motion mechanism are mounted on the upper part of the worktable via a support frame. A Z-axis motion component is mounted on the side of the mounting plate. An R-axis motion component is mounted on the lower surface of the moving plate to drive the dispensing head to rotate along the R-axis. A U-axis motion component is mounted on the upper surface of the moving plate to connect a column to rotate along the U-axis. The X-axis, Y-axis, and Z-axis motion mechanisms enable the moving plate to move along the X, Y, and Z axes. The R-axis and U-axis motion components then drive the dispensing head to move along the R and U axes. By mounting the R-axis and U-axis motion components on the upper surface of the moving plate, the dispensing head can be moved along five axes, eliminating the need for an additional lower platform, reducing installation workload, and minimizing the overall footprint of the five-axis dispensing machine.

The utility model discloses an integrated SIP (Session Initiation Protocol) chip for predictive maintenance of industrial equipment, which comprises a packaging space formed by a substrate and a packaging shell, a vibration sensor, an analog-to-digital converter, a microprocessor, a Flash memory, an SRAM (Static Random Access Memory) memory, an AI (Artificial Intelligence) core and a wireless communication module which are integrated on the substrate are arranged in the packaging space, and the Flash memory, the SRAM memory, the AI core and the wireless communication module are electrically connected with the microprocessor. The vibration sensor is electrically connected with the input end of the AI core through the analog-to-digital converter; the vibration sensor monitors the running state of equipment and outputs a vibration analog signal, the analog-to-digital converter converts the vibration analog signal into a digital signal, the AI core performs feature extraction and analysis on the digital signal and gives out fault prediction, and the microprocessor coordinates the work of each module and processes according to the fault prediction. And the information is received and sent to the cloud through the wireless communication module. The system is small in size, reduces the installation complexity, and improves the integration level, reliability and operation efficiency of the system.

The utility model relates to a land-saving system which is preferably designed to be a conveying device of a processing station and composed of a scale at the downstream of the conveying device, a weighing belt is directly connected with the conveying device and ensures that products only reach the weighing belt in an unclamped state through a releasing part of the conveying device because the length of the weighing belt is not smaller than that of the releasing part.

The present invention discloses an integrated whole-house fresh air system with air supply and exhaust modules, comprising: an air supply and exhaust module, which is arranged on a wall of a public space or one of the rooms; the air supply and exhaust module comprises an exhaust chamber and an air inlet chamber, the air inlet chamber connects the public space / room with the outside of a room group, and the exhaust chamber connects with the outside of the room group; branch air inlets are arranged on each room to realize the connection between each of the rooms and the public space; a main exhaust duct is connected with the exhaust chamber, and the main exhaust duct is also connected with each room through a return air duct; under the action of a first fan, outside fresh air directly enters the public space through the air inlet chamber or enters the public space through a room with an air inlet chamber; positive pressure is formed in the public space, so that fresh air enters each room through the branch air inlet, replaces the dirty air in the room, and then under the suction action of a second fan, the dirty air is discharged through the return air duct, the main exhaust duct, and the exhaust chamber.

The invention relates to the technical field of flue gas flow velocity detection, in particular to a probe fixing device and a flue gas flow velocity monitoring device. The probe fixing device comprises a supporting sleeve, a push-pull mechanism, a transmission mechanism and a plurality of connecting mechanisms; the supporting sleeve can be arranged in the peripheral wall of the chimney in a penetrating mode, the supporting sleeve is provided with an installation channel, the connecting mechanisms are rotatably installed on the side portion of the supporting sleeve, all the connecting mechanisms are distributed at intervals in the axial direction of the supporting sleeve, and the connecting mechanisms are provided with installation parts; the transmission mechanism is arranged in the mounting channel of the supporting sleeve, and the push-pull mechanism is mounted at the head end of the supporting sleeve; the push-pull mechanism drives the connecting mechanism to rotate through the transmission mechanism so that the connecting mechanism can rotate between the folding position and the unfolding position. By adopting the probe fixing device provided by the invention, the number of the formed mounting holes is reduced, so that the mounting workload of the probe is reduced, and the mounting period is shortened.

The utility model discloses an anti-freezing integrated orifice plate flowmeter which comprises a flange, an integrated assembly and a radiator, the top end of the integrated assembly is fixedly connected with a first radiator, the top end of the first radiator is fixedly connected with a second radiator, the top end of the second radiator is fixedly connected with a two-valve group, and the two-valve group is fixedly connected with a valve. The top end of the second valve group is fixedly connected with a third valve group, and the top end of the third valve group is fixedly connected with a differential pressure type transmitter. The steam anti-freezing integrated orifice plate flowmeter is provided with the first radiator, the second radiator, the two-valve group and the differential pressure type transmitter, the orifice plate, the radiators, the two-valve group, the three-valve group and the differential pressure type transmitter are integrated, steam is condensed into water through the radiators and flows back into a pipeline, and measurement of steam medium flow can be achieved. According to the utility model, the differential pressure transmitter, the three-valve group and the orifice plate flowmeter are integrated, so that the length of the pressure tapping pipe is effectively reduced, and the material cost is reduced.

The present invention relates to a three-phase voltage imbalance management device and method based on voltage dynamic compensation. By detecting the voltage information of the three phases A, B and C, the processor determines that the three-phase voltage difference exceeds a preset value, and then determines that the three-phase voltage is unbalanced. Then the processor intelligent control device performs inter-phase current transfer according to the voltage imbalance situation to achieve the goal of voltage balance at the terminal installation point. The present invention does not require the additional installation of current transformers, and can solve the problem of dynamic imbalance of three-phase voltage at the terminal installation point of the line in the current distribution network. It can dynamically adjust the three-phase voltage at the device installation point without power outage to ensure reliable operation of the load.

The utility model relates to the technical field of energy storage, and discloses a wire harness assembly and an energy storage device, the wire harness assembly is installed between at least two battery packs, and the wire harness assembly comprises a wire harness; the protection tube comprises an installation cavity extending in the length direction of the protection tube, and the wire harness is arranged in the installation cavity; the connectors comprise a first connector and a second connector which are arranged at the two ends of the mounting cavity respectively, conductive ends are arranged at the ends, away from the mounting cavity, of the first connector and the second connector respectively, and the conductive ends are connected with the battery pack in a pluggable mode; and when the conductive ends of the first connector and the second connector are respectively connected to the two battery packs, the two battery packs are electrically connected through the wire harness. The utility model has the advantages of easy assembly, high installation efficiency and stable performance.

The present invention discloses a full compensation device and method using a stepless regulating arc extinguishing coil, wherein the full compensation device comprises a grounding transformer, a stepless regulating arc extinguishing coil, an adjusting mechanism and a full compensation part, wherein the grounding transformer is connected to the system bus, the stepless regulating arc extinguishing coil is connected in series between the neutral point of the grounding transformer and the ground, the adjusting mechanism is connected to the stepless regulating arc extinguishing coil, and the full compensation part is connected to the controlled end of the stepless regulating arc extinguishing coil, and is used to adjust the inductive reactance of the stepless regulating arc extinguishing coil XH when the system is operating normally, and can fully compensate the system when a single-phase grounding fault occurs in the system. The present invention can cooperate with the stepless regulating arc extinguishing coil to perform system compensation, and the output voltage of the full compensation device is adjusted to the expected amplitude and phase by gradually adjusting the full compensation output voltage and the inductive reactance value of the stepless regulating arc extinguishing coil, thereby achieving full compensation of the grounding voltage and the grounding current, and the adjustment process has no step difference.

The invention relates to the technical field of data centers, and discloses a water supply device of an offshore data center cooling system, which comprises a pump protection pipe, a pipeline assembly and a submersible pump, the lower end of the pump protection pipe extends into seawater, the upper end of the pump protection pipe extends above an ocean platform, the pipeline assembly and the submersible pump are arranged in the pump protection pipe, and the submersible pump is fixedly connected to the lower end of the pipeline assembly. The pipeline assembly comprises a plurality of water pipe units which are connected with one another, the water pipe units can move in the axial direction of the interior of the pump protection pipe, and the water pipe units and the submersible pump can be hoisted out of or hoisted into the pump protection pipe section by section from the position above the ocean platform. Through the modular design, the pipeline assemblies can be flexibly combined according to the water depth, the water pipe units are short in length, the requirement for hoisting equipment is low, maintenance can be completed through conventional tools of the platform, divers are not needed during maintenance, all operations are conducted on the platform, and the difficulty and cost are greatly reduced.

The invention discloses an ultra-long transparent flexible screen conductive substrate and a preparation method thereof, and the substrate comprises multiple sections of flexible films which are provided with opposite head ends and tail ends; the flexible film comprises a tail end and a head end, the tail end is bonded with the two bonding pads, the head end is provided with two through holes, the two bonding pads are connected to one end of a film circuit on the flexible film, and the other end of the film circuit extends into the through holes. The two bonding pads are inserted into the two through holes of the adjacent flexible films and are electrically connected to the other ends of the film circuits of the adjacent flexible films, and the bonding pads are connected to the hole walls of the through holes in a dispensing manner; the reinforcing wires are fixedly arranged on the sides, away from the bonding pads, of the adjacent flexible films, and the two ends of each reinforcing wire are connected to the two bonding pads of the corresponding flexible film. The problem that an existing flexible transparent display product is not high in attractiveness after being spliced is solved.

The present application relates to the technical fields of piston temperature and stress measurement, and particularly relates to a piston temperature and stress testing device and method based on fiber Bragg grating, which is installed on a piston and comprises an FBG sensor, at least two through holes are formed on the surface of a combustion chamber at the top of the piston and are communicated with the inner cavity of the piston, a flexible armored tube is arranged below each through hole in the inner cavity of the piston, the FBG sensor is fixed on the surface of the combustion chamber by high-temperature resistant epoxy resin adhesive, the optical fiber at the input end of the FBG sensor is inserted into the inner cavity of the piston from one through hole, passes out of the piston through the flexible armored tube below the through hole and is connected to a light source, and the optical fiber at the output end of the FBG sensor is inserted into the inner cavity of the piston from another through hole and passes out of the piston through the flexible armored tube below the through hole and is connected to a demodulator. The present application can realize high-precision, real-time and reliable measurement, and can ensure the integrity of the surface of the piston and reduce the influence on the normal operation of the piston.

This utility model belongs to the technical field of plate heat exchangers, specifically a plate heat exchanger for siphon oil cooling. It includes a heat exchanger body composed of multiple thin plates, with an inlet and an outlet. Multiple support blocks are fixedly connected to both ends of the heat exchanger body. One end of each support block is rotatably connected to a sliding sleeve via a rotating rod, and a knob is fixedly connected to the other end of the rotating rod. Due to its unique structure, this plate heat exchanger allows for changes to the interface positions without altering the overall dimensions, making it more suitable for actual construction conditions and facilitating on-site installation. This reduces installation workload and saves piping materials. The plate heat exchanger's thin-plate design creates turbulence, achieving a heat transfer coefficient 3-5 times that of shell-and-tube heat exchangers. It is particularly suitable for cooling high-viscosity oils, rapidly reducing oil temperature, preventing oil oxidation or equipment wear due to overheating, reducing replacement frequency, and lowering subsequent maintenance costs.