84results about How to "Solve the sealing problem" patented technology

The application discloses a through-layer drilling ring flow supply self-cleaning and blocking integrated hole bottom extraction non-jetting drill tool, which comprises a multifunctional rod body, an extraction inner group pipe, a radial cavity forming nozzle, an axial blocking nozzle, a conical hole screen plate strip, an air inlet transition piece, a cross-border air inlet pipe, a compression spring slide valve assembly and a ring flow opening and closing drill bit. The special slide valve control mechanism is adopted, the original radial cavity forming jet flow is reserved, and the instantaneous axial blocking jet flow is added, so that the conical hole screen plate strip is self-cleaned and blocked. The cross-border air inlet pipe and the transition air inlet piece are combined and sealed, so that the radial air inlet channel passes through the axial flow supply channel without air and water leakage. The ring flow supply anti-backflow opening and closing drill bit is designed, and the jet flow water medium pollution problem and the drill bit opening and closing problem are solved.

The present application belongs to the technical field of disposable plugging stopper, and specifically provides a combined pin plugging stopper and a slurry sealing and blocking method. The combined pin plugging stopper comprises a stopper pipe, a first pin, a sliding structure, a deformation piece, an inner support, a steel ball, a second pin, a connector, a slurry overflow port and a slurry outlet pipe. The stopper pipe is fixedly connected with a grouting pipe through the first pin. The other end of the stopper pipe is arranged along the central axis of the grouting pipe and is connected with the slurry outlet pipe. The steel ball is arranged inside the side of the stopper pipe close to the slurry outlet pipe. The second pin is arranged between the steel ball and the slurry outlet pipe. The sliding structure is sleeved on the stopper pipe and is provided with a plurality of deformation pieces. The end of the sliding structure close to the slurry outlet pipe is connected with the slurry overflow port arranged on the slurry outlet pipe through the connector. The inner support is arranged on the stopper pipe and between the adjacent two deformation pieces. The present application can solve the problem of sealing failure or difficult recovery in the high-pressure grouting process caused by the structural and technological defects of the existing plugging stopper.

This utility model relates to the field of wood ear mushroom packaging technology and discloses a wood ear mushroom packaging vacuum coating machine, including a worktable, a vacuum chamber hinged to the top of the worktable, a connecting pipe connecting the worktable and the vacuum chamber, multiple material feeders rotatably arranged at the bottom of the vacuum chamber, and a spreading component movably arranged inside the worktable. The spreading component includes a placement platform, a moving shaft, and a lifting column. The lifting column is fixedly arranged at the bottom of the placement platform, and the moving shaft is rotatably arranged inside the worktable. The lifting column is sleeved on the moving shaft. The placement platform clamps the wood ear mushroom product through the four-sided abutment plates. The disc eccentrically arranged on the moving shaft pushes the lifting column, and the lifting column pushes the placement platform. The placement platform, through the up and down vibration of the vibration spring, drives the packaging to vibrate and spread the wood ear mushroom evenly, so that the wood ear mushroom particles are evenly distributed in the packaging, avoiding the particles from breaking the packaging and solving the problems of poor sealing and easy moisture oxidation caused by the gaps between particles.

The utility model discloses a barreled water semi-sealing film with holes in folded edges. The barreled water semi-sealing film comprises a plastic packaging film and a sealing film, wherein the plastic packaging film is of a cylindrical structure; the folded edge is formed on the plastic packaging film; and the tearing and sealing structure is arranged on the plastic packaging film and is distributed along the folded edge. According to the utility model, firstly, the tearing and sealing structure is arranged at the folding edge, and the symmetrically distributed line holes enable a user to apply force more uniformly during tearing and sealing, so that the tearing and sealing difficulty and the risk of incomplete tearing are reduced, and meanwhile, the sealing problem caused by the fact that the line holes penetrate through the other surface of the plastic packaging film in the traditional design is avoided. In addition, in cooperation with the design of the convex edge and the concave opening, a user can easily find the starting point of tearing and sealing, the tearing opening is neater, therefore, the attractiveness and practicability of the product are improved, the user experience is remarkably optimized, finally, the distinguishing part is made of materials (such as rubber strips made of polypropylene) with the hardness different from that of the plastic packaging film, and through the design of strong and weak partitioning, the packaging effect is better. And the convenience of tearing and sealing and the aesthetic property of the sealing opening are further improved.

The utility model belongs to the technical field of material conveying equipment discloses a kind of rotation feed valve using gas seal, including valve body and the rotor in the material passage of being installed in the valve body inside, the rotor is connected with driving device by rotating shaft, the rotor is driven by the driving device and rotates around its center line to realize the conveying of material;Gas seal device is installed on the valve body, and the gas seal device includes gas source, and sealing nozzle is connected with gas source by gas delivery pipeline, the sealing nozzle is installed at the clearance between the end portion of valve body and rotor, and gas is injected towards clearance and forms gas film at the clearance between the end portion of valve body and rotor.This utility model's rotation feed valve using gas seal can improve sealing performance, prolong service life, reduce maintenance cost, meet the needs of different industrial production processes, and can solve the problems of poor sealing performance and inconvenient maintenance in the prior art.

This utility model provides a high-temperature cleaning controller with a sealing structure, including a lower cover with an upper opening, an upper cover with a lower opening, a sealing gasket, and at least two connecting members. The upper surface of the lower cover has an annular protrusion surrounding the opening. The connecting members are respectively installed on at least one set of sides of the lower cover. The sealing gasket is installed on the lower surface of the upper cover, surrounding the opening. The upper cover and lower cover are snapped together, with the sealing gasket abutting against the lower part of the protrusion. The upper cover is fixed to the connecting members from its side by fasteners. This utility model adopts a non-top-bottom fastening structure, adding connecting members along the length direction to improve the overall sealing performance. The high-temperature cleaning controller, through the connecting members and sealing gasket, improves the sealing performance of non-top-bottom fastening, thereby solving the sealing problem of products with non-top-bottom fastening.

The utility model discloses a stab-proof outdoor filter bag relates to outdoor filter bag technical field, including connecting fixed subassembly and filter bag connecting subassembly, connecting fixed subassembly includes fixed ring, flexible protection bag and arc fixture block, the arc fixture block is fixed mounting in the top of flexible protection bag, and the fixed ring is fixed mounting in the flexible protection bag. The filter bag connecting assembly is fixedly mounted in the connecting and fixing assembly, the filter bag connecting assembly comprises a filter bag connecting ring and a connecting hole, and the connecting hole is formed in the filter bag connecting ring. Under the combined action of the flexible protection bag and the filter bag connecting ring, the filter bag is placed in the pressing groove in the filter bag connecting ring, then the filter bag is pressed through the filter bag pressing plate, the filter bag connecting ring and the filter bag pressing plate are fixed through the fixing column, and then the filter bag is placed in the flexible protection bag. The filter bag is protected to a certain extent through the flexible protection bag, and the situation that the filter bag cannot be used due to the fact that the filter bag is punctured by shrubs, trees and other objects is prevented.

This utility model discloses a compressible filter element, comprising a main body, a filter material, an upper soft seal, and a lower soft seal. The filter material is folded into multiple folded pieces, with adjacent folded pieces connected together. The connection point between two adjacent folded pieces on the outer side of the filter material forms two peak-shaped folded pieces. An upper sealing portion is formed by sealing the inner surfaces of the two peak-shaped folded pieces at the upper end of the filter material with a sealant material. A lower sealing portion is formed by sealing the inner surfaces of the two peak-shaped folded pieces at the lower end of the filter material with a sealant material. The upper end of the filter material is connected to the upper soft seal, and the lower end of the filter material is connected to the lower soft seal. This solves the sealing problem when the filter element is installed in an air purification assembly structure. The filter element can be squeezed and flattened to reduce its volume, thereby reducing the volume required for product transportation and lowering transportation costs.

The utility model provides a kind of engineering machinery LED spotlight, including rear shell, the lamp panel assembly with several LED lamps, front frame and optical assembly;The lamp panel assembly is arranged in rear shell interior and is connected with rear shell;The optical assembly includes face shield, face shield is provided with equal optical lens component with the number of LED lamp, face shield and optical lens component are integrated structure;The face shield is connected with rear shell, and each optical lens component cover is equipped with corresponding LED lamp, and the light emitted by LED lamp is emitted through optical lens component and face shield;The front frame is connected with rear shell and accommodates lamp panel assembly and optical assembly in rear shell interior.The utility model engineering machinery LED spotlight can solve the problem that the structure stability is poor and the sealing property is poor caused by the separation structure of face shield and optical lens, to improve the optical performance and lighting effect of LED spotlight.In addition, engineering machinery LED spotlight can adapt to different plug use, to improve practicality and versatility.

The thinning machine comprises a rotary table assembly, a grinding assembly, a liquid receiving disc and a sealing assembly, the rotary table assembly is used for bearing a to-be-machined part, the grinding assembly is used for grinding the to-be-machined part on the rotary table assembly, the liquid receiving disc is used for receiving waste liquid, and the sealing assembly comprises an annular sealing groove and a flange structure; the annular sealing groove is formed in the liquid receiving disc and used for storing sealing liquid, the flange structure comprises an annular drainage flange and an annular sealing flange, the annular drainage flange is used for guiding waste liquid on the rotary table assembly to flow into the liquid receiving disc, and the annular sealing flange is arranged between the annular drainage flange and the rotary table assembly; and the sealing ring is used for being inserted into the sealing liquid in the annular sealing groove. The problem that in the prior art, sealing is conducted through a sealing ring, and defects exist can be effectively solved.

The utility model belongs to the vertical mill technical field, concretely relates to a kind of automatic unblocking device on the feeding chute of slag vertical mill, including vertical mill shell, feeding chute is provided on the vertical mill shell, the inside fixedly connected with connecting pipe of the vertical mill shell, the inside of the vertical mill shell is provided with mill inner chute tongue board, connecting pipe is provided on the mill inner chute tongue board, air storage bag is provided on the connecting pipe, flow control valve is provided on the connecting pipe, nozzle is provided on the connecting pipe, nozzle is provided on the mill inner chute tongue board, the outside of the feeding chute is provided with sealing mechanism. By design feeding chute, air storage bag, connecting pipe, flow control valve, nozzle and mill inner chute tongue board etc. component, the inside of feeding chute on device is easy to block material to the characteristics such as the accumulation of different moisture of material into mill, cohere, block etc. have the problem of better adaptability.

This invention discloses a side-mounted magnetic stirring device and method. The device includes a storage unit, a spherical stir bar placed inside it, and a magnetic stirrer disposed on its outer wall. The spherical stir bar has an embedded magnet, and the magnetic stirrer drives the spherical stir bar to roll and / or rotate through a magnetic field. The outer wall of the storage unit may be provided with a slide rail or guide groove, and the magnetic stirrer can move axially via a slider or roller; it may also include a fixing component and an adjusting screw for connecting the magnetic stirrer and the liquid-pushing piston and adjusting their relative positions. The method includes placing the spherical stir bar inside the storage unit, starting the magnetic stirrer to drive stirring, and making the magnetic stirrer move synchronously with the liquid-pushing piston. This invention requires no modification to the opening, does not occupy bottom space, has no leakage risk, and is easy to assemble and disassemble, making it particularly suitable for tubular liquid storage units with limited bottom space or requiring temporary stirring.

The utility model is suitable for the technical field of special gas supply cabinet, provides a special gas supply cabinet anti -leak structure, including the cabinet body, the upper end fixedly connected with fixed plate of cabinet body inner wall, one end of fixed plate is provided with movable plate, the upper fixedly connected with the baffle of fixed plate, the exhaust pump fixed connection in one side of cabinet body, cabinet body inner wall between baffle and fixed plate is fixedly connected with air pressure sensor and gas monitor respectively, the other side of cabinet body is fixedly connected with air inlet pipe and pressure relief pipe respectively. The special gas supply cabinet anti -leak structure provided in the scheme utilizes baffle, movable plate and fixed plate, so that the leakage space is smaller, utilizes two gas monitors of upper and lower simultaneously, is convenient for more comprehensive detection to this space, and then is convenient for more convenient monitoring of heavier and lighter gas, and the leaked gas can be discharged after monitoring, avoids the security risk caused by too much leakage.

The utility model relates to battery technology field, concretely relates to electric core cover plate subassembly, electric core and battery package. Electric core cover plate subassembly includes cover plate body, pole, first sealing washer and second sealing washer. Pole includes pole column body and pole bottom plate, along the length direction of cover plate body, pole column body is eccentric arrangement on pole bottom plate, pole column body is insulated with cover plate body, the surface of pole bottom plate is equipped with the annular sealing groove around pole column body to cover plate body, first sealing washer is set up on pole column body, second sealing washer is located in sealing groove and is sealed between cover plate body and pole bottom plate by compression, and the compression rate of second sealing washer satisfies preset condition. The utility model discloses through sealing groove and double sealing washer design, effectively solved the problem of poor sealing of eccentric pole because of the bottom plate warping, avoids the electrochemical corrosion or insulation aging between pole and cover plate body, reduces the short circuit risk.

This invention relates to the field of animal husbandry technology and discloses a sealed modular pigsty, including a modular pigsty body, a load-bearing slatted floor, a V-shaped baffle, and an isolation and odor-proof unit. The isolation and odor-proof unit includes an air cushion isolation module, an isolation and odor-proof module, an anti-adhesion module, and a dry and wet separation module. By setting the air cushion isolation module, a horizontal air cushion layer is formed between the load-bearing slatted floor and the V-shaped baffle. The airflow pressure physically isolates heavy odorous gases such as ammonia and hydrogen sulfide produced by manure fermentation, preventing them from flowing back up along the gaps in the slats to the pigs' activity area. At the same time, the air blowing holes guide the airflow downwards to the inclined surface of the V-shaped baffle, pushing the manure and urine attached to the inclined surface downwards, reducing the residence time of manure and urine at the bottom, avoiding the problem of airflow short-circuiting or local negative pressure, and solving the technical problem of odor easily diffusing upwards from the bottom in traditional sealed modular pigsties, leading to a decline in indoor air quality.

The invention discloses a medical infectious disease protection device, and relates to the field of medical instruments. The device comprises a head-mounted support, a front support and a rear support of the head-mounted support achieve multi-angle adjustment through a rotating mechanism, and a detachable soft support is arranged on the inner side of the head-mounted support; a vertical support of a hard frame of the eye protection assembly is rigidly connected to the lower side of a front side support, a transparent cover body is detachably installed on the hard frame in a magnetic attraction mode, and the cover body is provided with side protection wings bent backwards; according to the mask assembly, a soft frame is connected to the lower end of the vertical support through a ball head clamping piece, a U-shaped groove with a memory soft cushion is formed in the frame to seal the nose bridge, a protective film is fixed outside the soft frame, and the frame is tightly attached to the mouth and the nose through a pull rope with an adjuster. Eye protection and mouth and nose protection are integrated, comprehensive protection, dynamic sealing, pressure balance and convenient replacement are achieved through an adjustable mechanism and a self-adaptive sealing structure, and the wearing comfort and protection safety of medical staff are remarkably improved.

The utility model provides a motor output shaft sealing structure, a motor and a machine tool, and belongs to the technical field of motors. The motor comprises a motor body and an output shaft, a front end cover of the motor body is provided with a shaft outlet hole, a first end of the output shaft penetrates through the shaft outlet hole and extends out of the motor body, and the output shaft is provided with a main air channel and a plurality of branch air channels respectively communicated with the outside and the main air channel; the main air channel extends in the axial direction of the output shaft, and the multiple branch air channels are arranged in the circumferential direction of the output shaft at intervals. Gas exhausted by each branch gas channel can be blown to the inner wall of the shaft outlet hole and is reflected to the outside of the machine body; and in the rotating process of the output shaft, air exhausted by all the branch air channels can jointly form an air curtain used for blocking the shaft outlet hole. The motor can solve the problem that a high-speed motor cannot be sealed by an oil seal at a shaft outlet through an air seal mode.

The utility model discloses an automobile lamp sealing structure which comprises a lamp holder and a lamp shell, the lamp shell is fixed to the outer side of the lamp holder in a sleeved mode, a lampshade is connected to the top of the lamp shell in a clamped mode, a light uniformizing lamp panel is fixedly connected to the interior of the lampshade, a wiring cable is connected to the bottom of the lamp holder, and a sealing bunching pipe is connected to the outer side of the wiring cable in a sleeved mode. A multi-layer sealing structure is formed in the splicing process of the first annular protrusion and the second annular protrusion, the sealing performance and the waterproof performance of the whole lamp can be further improved, and the situation that gas and liquid easily enter a lampshade due to the fact that a single thread sealing structure is used is avoided; in addition, a sealing gasket with a larger and thicker size can be selected for use, the sealing performance of connection between the light uniformizing lamp panel and the lampshade can be further improved, a cable can be fully wrapped for water prevention, a gap between the wiring cable and the lamp holder can be prevented from being fully sealed when the wiring cable is in through connection with the lamp holder, and the overall lamp hole is further reduced.

The utility model discloses a sealing device for processing a glass fiber reinforced plastic septic tank, which relates to the technical field of environmental protection equipment, and comprises a tank body, the top end of the tank body is fixedly connected with three groups of cleaning openings, and the sealing device for processing the glass fiber reinforced plastic septic tank is provided with an inner cover, a sealing ring and a connecting block. Due to the fact that the first expansion rubber ring and the second expansion rubber ring can expand when encountering water due to the material characteristics of the first expansion rubber ring and the second expansion rubber ring, if the water level in the pool body rises into the cleaning opening, the first expansion rubber ring and the second expansion rubber ring extrude each other after being expanded when encountering water and are tighter, and gas or liquid is prevented from overflowing upwards. Meanwhile, leakage can be prevented through preliminary isolation of the inner cover, after the inner cover is installed downwards, the top cover is directly inserted downwards into the top end of the inner cover, the sealing ring surrounds the periphery of the inner cover for further sealing and preventing overflow, at the moment, the top cover and the cleaning opening are fixed, secondary isolation is conducted, leakage is prevented, and the problem that the sealing performance of the device cannot be enhanced is solved.

The invention discloses a screw supply device and brush head shell assembling equipment applying the same, and relates to the technical field of automatic assembling equipment. The screw supply device comprises a screw feeding mechanism, a conveying pipeline, a temporary storage module and a driving mechanism. The tail end of the conveying pipeline is provided with a stop valve for controlling the screws to enter the temporary storage cavity; a piston capable of moving up and down is arranged in the temporary storage cavity and moves synchronously with the screwdriver, and a closed air chamber with variable volume is formed between the piston and the inner wall of the temporary storage cavity; an elastic sealing and folding structure is arranged at the bottom of the temporary storage cavity. During working, the piston is pressed downwards to compress air in the air chamber, so that the posture of the screw is stable, and the contact between the screwdriver and the head of the screw is buffered through the air cushion effect; and then the screwdriver rotates and pushes the screw out for locking. The problems that due to conveying and locking rigid coupling of a traditional screw machine, efficiency is low, the tail end posture is not stable, and the head of a screw is prone to being damaged are solved, and high-stability, high-efficiency and high-quality automatic assembly is achieved.

The utility model discloses a high-performance well completion hanger, which relates to the technical field of well completion hangers and comprises an alloy pipe body, a plurality of sealing rubber rings are sleeved on the alloy pipe body, a sleeve is mounted at the lower end of the alloy pipe body, and a well cementation accessory is sleeved at the lower end of the sleeve. The anchoring and sealing effects are achieved after the pipe body is expanded and extruded, the problems that anchoring is not stable and the sealing effect is poor are solved, and the anchoring reliability and sealing performance of the hanger are improved. The T-shaped fixing block is matched with the central pipe and the tail pipe rubber plug, so that the tail pipe rubber plug and the central pipe are connected and are disconnected and separated after being pressed, the problem that the tail pipe rubber plug and the central pipe are difficult to separate is solved, and the convenience of component separation in the construction process is improved.

This invention belongs to the field of check valve technology, specifically a float-type check valve, including a valve body, a mounting base, a float housing, and a hollow float. The float housing is rotatably assembled via a spherical seat on the mounting base. A ball bearing is provided between the spherical seat and the ball head of the float housing, allowing the float housing to automatically adjust its verticality when the valve body is tilted, maintaining its central axis perpendicular to the horizontal plane. The float housing has a through hole communicating with the inlet, a spherical cavity accommodating the float, and a through groove communicating with the outlet. A branch channel extending to the valve seat sealing surface is opened on the inner wall of the through hole, which can assist in pushing the float open during forward flow. A multi-stage staggered-hole throttling disc is provided on the inner side of the outlet end to reduce the reverse flow velocity. The float housing adopts a split plug-in structure. This invention solves the problems of poor sealing, difficulty in opening under low pressure, and susceptibility to water hammer in traditional float valves installed at tilted angles. It has advantages such as reliable sealing, sensitive response, and adaptability to complex installation environments.

This utility model relates to the field of electronic patch panel technology and discloses an electronic patch panel with dustproof function. It includes a patch panel body, a dustproof component on the side wall of the patch panel body, and a fixing component on the side wall of the patch panel body. The dustproof component includes a lower shell and an upper shell. The side wall of the upper shell is rotatably connected to the inside of the patch panel body, and the side wall of the lower shell is fixedly connected to the side wall of the patch panel body. A second fixing sleeve is fixedly connected to the side wall of the lower shell, and a first fixing sleeve is fixedly connected to the side wall of the upper shell. A first locking block is fixedly connected inside the first fixing sleeve. In this utility model, a torsion spring drives the upper shell and lower shell to fit tightly together, and a sealing block eliminates gaps. Simultaneously, a spring drives the second locking block to engage with the first locking block to achieve locking. The sealing gasket in the groove forms a wrapping seal for the cable. Pressing the push block releases the lock and opens the upper shell. This structure improves the dustproof reliability and ease of use of the equipment.

The utility model relates to the technical field of fractionating tower trays, in particular to an efficient fractionating tower tray for ethyl chloroacetate rectification, which comprises a fixedly arranged upper tower drum, a liquid inlet pipe is mounted on the outer side wall of the left side of the lower part of the upper tower drum, and the tail end of the liquid inlet pipe is horizontally rightward and fixedly connected onto the outer side wall of the upper tower drum in a sealing manner; the interior of the liquid inlet pipe is communicated with an upper cavity of the upper tower drum through a liquid inlet, the outer side wall of the lower portion of the upper tower drum is sealed and movably connected to the outer side wall of the upper portion of the lower tower drum in a sleeving mode, a coaxial fluted disc is integrally formed and fixed to the outer side wall of the upper portion of the lower tower drum, and a gas-liquid mixing assembly is installed in a lower cavity of the lower tower drum. Through the structural design that the upper tower drum is sleeved with the lower tower drum and the lower tower drum can rotate circumferentially, and in combination with the arrangement of the vertical scrapers, the vertical scrapers can rotate along with the lower tower drum to scrape the liquid inlet, so that the materials near the liquid inlet are prevented from being accumulated and blocked, the liquid is ensured to smoothly enter the upper tower drum, and the stability and continuity of the fractionation process are maintained.

This utility model discloses an emergency depressurization device for an oxygen chamber, including a mounting base with a groove on the inner side and a depressurization hole on the groove. A silencer is installed on the outer side of the depressurization hole. A pressure plate is provided above the groove, and a rotatable valve plate is provided between the groove and the pressure plate. The valve plate has a first through hole. The mounting base has an inner handle and an outer handle that are linked together. The inner or outer handle can drive the valve plate to rotate, adjusting the overlap between the first through hole and the depressurization hole. This utility model utilizes the design of the valve plate being linked with the inner and outer handles. In an emergency, the operator only needs to rotate the handle to quickly adjust the valve plate, so that the first through hole and the depressurization hole quickly reach a complete overlap, achieving rapid depressurization of the chamber and ensuring the safety of the oxygen chamber and the personnel inside.

The invention belongs to the technical field of electrochemical in-situ characterization, and particularly relates to a packaging layer processing method for near-normal-pressure photoelectron spectroscopy analysis. The method comprises the following steps: constructing an initial packaging layer covering liquid electrolyte on the surface of a working electrode; integrating the samples on a sample carrying table and transferring the samples to an analysis equipment chamber; the thinning system of the equipment is used for carrying out in-situ thinning on a target area, the analysis beam of the equipment is synchronously or alternately used for monitoring the signal change of the thinned area in real time, and the thickness of the packaging layer is precisely regulated and controlled to the target nanoscale based on signal feedback. According to the method, through a strategy of first packaging and then in-situ optimization, the contradiction that effective sealing and high signal transmittance are difficult to consider in a traditional method is solved, high-quality in-situ and dynamic characterization of an electrode-electrolyte interface in a volatile liquid electrolyte environment is realized, and the accuracy and reliability of test data are remarkably improved.

The utility model relates to a kind of power taking track, its track pedestal is arranged with multiple power taking positions along its length direction, and sealing plate is provided with the sealing plate socket corresponding to multiple power taking positions;Safety door component includes the protective door of transverse sliding setting in support plate, and the protective door is provided with the zero line convex column, live line convex column and ground wire convex column corresponding to the sealing plate socket of each power taking position;When power taking position is not inserted socket adapter, the zero line convex column, live line convex column and ground wire convex column of protective door close the sealing plate socket;When socket adapter is inserted into power taking position, its zero line plug post, live line plug post and ground wire plug post press down corresponding zero line convex column, live line convex column and ground wire convex column, drive the protective door to move downward and transversely to avoid the plug post, so that the sealing plate socket is opened.The scheme has the advantages of improving the sealing property of socket protection, simplifying the structure, improving safety and reliability.

The utility model relates to a novel geothermal well thermal insulation pipe, and relates to the technical field of geothermal wells, the novel geothermal well thermal insulation pipe comprises a foundation, a thermal insulation mechanism is arranged in the foundation, a limiting mechanism is arranged outside the thermal insulation mechanism, the thermal insulation mechanism comprises an outer pipe, and the outer part of the outer pipe is fixedly connected to the interior of the foundation; an aluminum foil layer is fixedly connected to the interior of the outer pipe, a penetrating hole is formed in the exterior of the aluminum foil layer, a heat insulation layer is fixedly connected to the interior of the aluminum foil layer, an inner pipe is fixedly connected to the interior of the heat insulation layer, a connecting assembly is arranged on the exterior of the inner pipe, and a sealing assembly is fixedly connected to the exterior of the connecting assembly. The vacuum heat insulation layer is driven through the penetrating hole structure between the outer pipe and the aluminum foil layer, and convection heat dissipation is blocked, so that heat loss is reduced to the maximum extent in the conveying process of geothermal energy, and the energy utilization rate and operation reliability of a geothermal utilization system are improved.

The utility model relates to the technical field of gas spectrum analysis, in particular to an automatic calibration and storage device of a gas spectrum database, which comprises a gas chamber, a sealing cover is arranged on the upper side of the gas chamber, and an adjustable light source module, a gas spectrum calibration module and an integral processor are sequentially arranged on the upper side of the sealing cover from left to right. A heat dissipation type storage module is arranged at the right end of the lower side of the gas chamber, two gas path assemblies are arranged in the gas chamber and can be divided into a calibration gas path assembly and a cleaning gas path assembly, the calibration gas path assembly is used for normal gas calibration and conveying, and the cleaning gas path assembly is used for cleaning the calibration gas path assembly. According to the utility model, a highly integrated modular structural design is adopted, and the adjustable light source module, the gas spectrum calibration module, the overall processor and the heat dissipation type storage module are organically integrated around the gas chamber, so that the integrated functions of automatic calibration, analysis and storage of gas spectrum data are realized; and independent maintenance and upgrading of each functional module are facilitated.

The invention relates to the field of membranes, membrane separation and membrane catalytic reaction, and discloses a novel U-shaped hollow fiber membrane separation and catalytic membrane reactor assembly, which sequentially comprises a U-shaped hollow fiber membrane bundle, a heat insulation layer and a packaging base from top to bottom. The packaging base comprises two cavities used for air inlet and air outlet of the U-shaped membrane respectively, the U-shaped hollow fiber membrane penetrates through the heat insulation layer and the upper layer of the packaging base and is arranged in the two cavities, and the heat insulation layer plays a role in protecting the hollow fiber membrane and prevents a sealant used by the membrane and the packaging base from being melted. The packaging base is connected with gas, and the gas flows in from one end of the packaging base, passes through the U-shaped hollow fiber membrane bundle and flows out from the other end of the packaging base. The U-shaped hollow fiber membrane module provided by the invention is simple and compact in structure, high in flexibility, convenient to seal and low in leakage risk, the effective membrane area is increased, and the U-shaped hollow fiber membrane module has higher reliability and is easy to intensively amplify.