61results about How to "Avoid risk of rupture" patented technology

A transfusion pump comprises a casing, a driving module, a piston, a pressure sensing module and a control module. The casing comprises a containing portion and a guide portion. The containing portion is used for containing a transfusion bag, and a liquid outlet is arranged in the lateral wall. The driving module is arranged at one end of the guide portion far away from the containing portion, and the driving end of the driving module can reciprocate along the guide portion. The piston is arranged in the casing and connected with the driving end. The pressure sensing module is arranged on the lateral wall of the piston far away from the driving module to obtain a pressure value between the transfusion bag and the piston. The control module, the driving module and the pressure sensing module are in communication connection. The control module receives the pressure value between the transfusion bag and the piston and measured by the pressure sensing module and controls the driving module according to the pressure value. When the pressure value is larger than preset pressure value, the control module controls the driving module to stop. When the pressure value is smaller than or equal to the preset pressure value, the control module controls the driving module to proceed at constant speed.

The invention discloses a system for monitoring reactor core parameters of a nuclear power plant. The system comprises measurement assemblies and a signal processing unit, wherein the measurement assemblies comprise multiple first measurement assemblies and multiple second measurement assemblies, each of the first measurement assemblies and the second measurement assemblies comprises multiple self-powered neutron detectors for collecting reactor core neutron-flux density in real time, and the multiple self-powered neutron detectors are distributed in the axial direction and / or radial direction along the periphery of the reactor core of the nuclear power plant; the signal processing unit comprises a reactor core neutron-flux density signal processing cabinet, and is used for receiving reactor core neutron-flux density signals collected by each self-powered neutron detector, processing the reactor core neutron-flux density signals and sending the reactor core neutron-flux density signals to a reactor core online monitoring system, so that the reactor core condition is monitored in real time. According to the system, the integrated measurement assemblies are adopted, so that the space occupied by equipment is reduced, and later maintenance and replacement are facilitated; real-time continuous monitoring for in-reactor neutron flux can be realized, measurement information is more reliable, and the accuracy rate is high.

The invention discloses a dual-arm mechanical arm and a method for moving plates by using the same. The method comprises the following main steps: ensuring a first mechanical arm and a second mechanical arm to simultaneously stretch into machining equipment; ensuring the first mechanical arm to simultaneously carry out stabilization operation and remove fixed suction from a previously borne firstplate when the second mechanical arm takes out a second plate in the machining equipment; and then lowering the first mechanical arm to place the first plate in the machining equipment. By the method, the risk of crack can be prevented when the first plate is placed, and the operation time needed by the first mechanical arm for waiting for stabilization and removing fixed suction is saved.

The invention discloses a plastic casing and a preparation method. The preparation method of the plastic casing comprises the following steps that step 1, injection molding is performed, specifically,optical-grade transparent plastic is adopted, meanwhile, injection molding is performed by the aid of a textured metal mold core, and the plastic casing in a required shape is formed; step 2, functionalization treatment is performed; step 3, machining by the aid of a numerically-controlled machine tool is performed, specifically, the hardened plastic casing is subjected to shape machining by theaid of the numerically-controlled machine tool; step 4, film coating is performed, a reflecting layer is prepared, specifically, the inner surface of the plastic casing machined by the numerically-controlled machine tool is coated with the film in a magnetron sputtering, CVD or evaporation manner, and the reflecting layer is formed; step 5, a shading layer is prepared, specifically, the shading material completely covers the inner surface of the plastic casing with a related technology, and the shading layer is formed; and step 6, the required plastic casing is formed finally through steps 1 to 5. According to the method, a plurality of problems existing in a technology for producing the plastic casing from the optical-grade transparent plastic are solved.

The invention relates to equipment and method for preparing a large-area high-density nuclear track nano-pore membrane. The equipment comprises an etching generation device, wherein the etching generation device comprises a clamping part and a liquid holding part; the clamping part is used for clamping a latent track film and is fixed on the liquid holding part filled with etching liquid; an intermittent ultrasonic action is provided by utilizing an ultrasonic generator, and an etching product remained in track holes can be peeled in time; the latent track film is subjected to radiating sensitization by utilizing an ultraviolet lamp, and the etching speed is accelerated. According to the equipment and method, uniform etching of the film can be realized; the etching product is peeled by utilizing ultrasonic waves, so that the etching liquid and the latent track can be sufficiently contacted, and the etching speed of the track can be accelerated; the film is protected against the broken risk due to long-time vibration of the ultraviolet waves by adopting the intermittent ultrasonic action; and the track nano-porous film has excellent reflection resistance, and has wide application range due to the large area and high pore density.

The invention discloses a multi-layer net shaped staggered rib plate type hydrogen storage reaction device. The device is of a three-dimensional structure and comprises a housing, wherein the upper end and the lower end of the housing are correspondingly connected to an upper sealing head and a lower sealing head through flange structures in a sealing manner; a heat exchanging pipe is arranged inthe center of the housing; a plurality of layers of circumferential rib plates are sequentially arranged at the outer part of the heat exchanging pipe; a radial rib plate is arranged between two adjacent layers of circumferential rib plates; a reaction bed layer is arranged in each of the spaces formed by the radial rib plates and the circumferential rib plates; a tubular plate is arranged betweenthe upper sealing head and the housing, and an air phase buffering chamber is formed between the tubular plate and the upper sealing head; a heat exchanging liquid inlet which communicates with the heat exchanging pipe, an air phase inlet which is connected to the air phase buffering chamber and an air safety valve are arranged on the upper sealing head. The device is applicable to high reactionheat effect chemical reaction such as dehydrogenation or hydrogenation of metal hydride. The device has the advantages of being high in heat transfer rate, simple to operate, compact in structure, andconvenient to maintain.

The invention discloses a lithium ion battery anti-explosion valve with reinforcing ribs. The anti-explosion valve comprises an anti-explosion valve ring, an anti-explosion valve cover and the reinforcing ribs, wherein the reinforcing ribs comprise the first reinforcing rib and the second reinforcing rib, the anti-explosion valve cover is fixedly connected with the inner side of the anti-explosion valve ring, an annular groove in a shape identical to the shape of the anti-explosion valve ring is formed in the anti-explosion valve cover, the first reinforcing rib and the second reinforcing rib are arranged in the middle of the anti-explosion valve cover and both fixedly connected to the top of the anti-explosion valve cover, and the opening of the first reinforcing rib and the opening of the second reinforcing rib face opposite directions. According to the lithium ion battery anti-explosion valve with the reinforcing ribs, the first reinforcing rib and the second reinforcing rib are formed in the mode of extrusion or drawing from the anti-explosion valve cover, the anti-explosion valve can be avoided from being deformed and broken in the transportation process, the problems that in a breath testing experiment, the anti-explosion valve is excessive in amplitude and accordingly is tore, and the anti-explosion value is excessively decreased can be avoided, the risk that the anti-explosion valve is deformed and broken in the production process is avoided, and the service life of the anti-explosion valve is prolonged.

The invention discloses a lithium battery module transfer device and an implementation method thereof. The lithium battery module transfer device comprises a transfer box, lithium battery module bodies, a transfer box base, bottom plates, fixing assemblies and clamping assemblies, the multiple lithium battery module bodies are arranged in the transfer box, the multiple bottom plates are connectedin the transfer box in a sleeved mode, and the multiple fixing assemblies are arranged at the tops of the bottom plates. According to the lithium battery module transfer device and the implementationmethod thereof, a self-locking nut is screwed; a threaded column extrudes an extrusion plate; the clamping plate is extruded to clamp the lithium battery module bodies; the bottom plates are put intothe transfer box; top grooves in two sides of the bottom plates are clamped on the outer sides of top blocks, the fixation is completed, a traditional bundling fixing mode is abandoned, the clamping fixing is adopted, the fixing is firmer, the mounting and dismounting are convenient, a user can conveniently take the lithium battery module bodies and conduct layered filling and transportation, thesituation that heat dissipation cannot be conducted due to the fact that the space between the adjacent lithium battery module bodies is small is avoided, and the transportation of the lithium batterymodule bodies is facilitated.

The invention discloses a repair method for a graphite dusk. The method is characterized in that: first crack detection is performed on the surface of the graphite disk; when the first crack width ofthe surface of the graphite plate satisfying the first preset crack width is detected, a repair layer is prepared on the surface of the graphite plate, and repair is performed on the graphite plate. Detection is performed on the first crack of the graphite plate, repair is performed on the graphite plates which has the first crack, so that it is guaranteed that the first crack on the surface of the graphite disk can be covered and filled, the graphite plate being eroded by the graphite plate exposure is avoided, the quality of the product influenced by doping carbon is reduced, the preparing properties of the semi-conducting material is improved, the service life of the graphite plate can be prolonged simultaneously, and the risk of the crack of the graphite plate, which is caused by the stress accumulation is prevented.

The invention relates to the technical field of experimental equipment, and discloses a sample support used in a laboratory. The support includes a base, the base is a rectangular block, the upper wall surface of the base is provided with four long grooves, each long groove is rectangular, and each long groove passes through the front and rear wall surfaces of the base; and the bottom inner wall of each long groove is provided with a circular groove, the circular groove is circular, a rubber block is fixedly installed on the bottom wall surface of each circular groove, and two vertical blocksare fixedly installed on the upper wall surface of the base. According to the support, gaps are arranged, a test tube is pushed directly into one gas from the front to the back when the test tube is placed, so that the risk that the test tube can be damaged because when a test tube is placed in a current support, the test tube needs to be placed from the top to the bottom, and the bottom of the test tube touches the inner wall of a circular hole of the current support is avoided.

The invention belongs to the technical field of cryoablation, and particularly relates to a cryoablation catheter. The cryoablation catheter comprises a catheter body, a handle, a balloon, a sealing assembly and a first spraying hole assembly arranged at the far end of an incoming flow cavity; a freezing spray pipe provided with a second spray hole assembly is arranged in the balloon, and the incoming flow cavity is arranged in a displaceable mode so as to drive the sealing assembly which is located in a connecting cavity of the freezing spray pipe and can be opened or closed to separate or communicate the incoming flow cavity and the connecting cavity of the freezing spray pipe. The incoming flow cavity is arranged in a displaceable manner, so that the cryoablation catheter has the same pipeline structure during precooling and freezing, the balloon is folded and is not frozen during precooling, and an air inlet pipeline is pushed into the frozen balloon during cryoablation to expand the frozen balloon for cryoablation.

The invention discloses a glass cleaning system which comprises a vacuum adsorption module (1), a clean air ultrasonic module (2) and a high-temperature steam ultrasonic module (3), the vacuum adsorption module (1) conducts transmission movement between the clean air ultrasonic module (2) and the high-temperature steam ultrasonic module (3), and the vacuum adsorption module (1) comprises a vacuum jig (11) and glass (12) to be cleaned. The glass (12) is placed on the vacuum jig (11), and the glass (12) is kept in a flat state on the vacuum jig (11). According to the glass cleaning system, compared with an existing cleaning mode, in the cleaning process, glass or thin film products are always subjected to vacuum adsorption, and the risk of breakage caused by manual operation is avoided.

The invention discloses a lifting device for bearing a wafer. The lifting device comprises a lifting platform which is used for bearing the wafer and can move up and down, wherein the lifting platformis provided with at least one first through hole and at least one second through hole which penetrate through the lifting platform, at least one first through hole forms an annular shape, the interior of the annular shape can accommodate the horizontally placed wafer, and at least one second through hole is located in the annular shape; a first wafer supporting piece which is located on the uppersurface of the lifting table and in the annular interior; a second wafer supporting piece which penetrates through the lifting table through the second through hole, wherein the lifting table can move up and down along the second wafer supporting piece, when the lifting platform descends, the wafer is supported by the second wafer supporting piece, and when the lifting platform is lifted, the wafer is supported by the first wafer supporting piece; and a limiting structure which penetrates through the lifting table through the first through hole, wherein the upper surface of the limiting structure is higher than the upper surface of the second wafer supporting piece, the lifting table can move up and down along the limiting structure, and the limiting structure surrounds the periphery of the wafer and is used for limiting horizontal movement of the wafer.

The invention relates to a damper with an overload protection device. The damper comprises a shell, a rotating shaft and a piston, wherein the piston is rotatably arranged in the shell, can rotate synchronously along with the rotating shaft, is longitudinally and movably arranged on the rotating shaft in a sleeving mode relative to the rotating shaft, and a gap for flowing of a viscous liquid is formed between the piston and the rotating shaft; a closed cavity is formed by the rotating shaft and the shell together; and the cavity is filled with damping oil. The damper with an overload protection device is characterized in that the rotating shaft is provided with a pressure relief opening and a pressure relief channel communicating with the cavity, and a flexible buffering piece is arranged in the pressure relief channel. According to the damper with the overload protection device, by adopting the structure, the damage to the damper caused by an impact torque under an abnormal using state can be greatly reduced, and the service life of the damper is prolonged.

The present invention relates to a permeable suction mould arranged to support a fibrous product during application of a surface film onto a surface of said fibrous product, said mould including suction carrying structure for delivery of suction to the mould surface wherein said suction carrying structure is formed by a porous structure in a sintered material.

The invention discloses a display panel and a reinforcing method thereof, and a display device. The display panel comprises a substrate; at least one buffer layer arranged on one side of the substrate; a display function layer arranged on one side, far away from the substrate, of the buffer layer; a blocking function layer which is arranged on the side, away from the buffer layer, of the display function layer and covers the outer side face of the display function layer; and an adhesive layer arranged on the outer side surfaces of the substrate and the buffer layer. The problem that a thinned glass substrate is prone to generating microcracks in the cutting process can be solved, so that the edge strength of the flexible display panel is improved, and the curling reliability of the flexible display panel is improved.

The invention discloses a floating device of a deep water unmanned submarine. The floating device of the deep water unmanned submarine comprises a deep water submarine. The deep water submarine is provided with an inflatable chamber for holding a gas source, a fairing, and a floating bag positioned in the fairing. The floating bag is provided with a safety valve, a differential pressure valve, and an inflatable nozzle communicated to the interior of the inflatable chamber, the floating bag is internally provided with an inflatable manifold connected with the inflatable nozzle, the inflatable manifold is connected with a plurality of flexible air ducts, a plurality of exhaust vents are sequentially provided on the flexible air ducts along the pipeline, and the inflatable nozzle, the inflatable manifold, the flexible air ducts and the floating bag form a loop. According to the invention, the inflatable manifold is provided, so that gas becomes multi-point output from single-point input, the instantaneous inflation pressure around the inflatable nozzle is decreased, and the synchronization of inflation is improved; the flexible air ducts are additionally provided, so that gas flows to the folding end of the inside of the bag in the first time, the synchronization and uniformity of rapid inflation are improved, and the risk of bursting of the bag caused by too high local pressure due to uneven inflation is avoided.

The invention discloses a smelting furnace for producing copper products. The smelting furnace comprises a feeding box, a crucible and a furnace body. The furnace body is arranged below the feeding box. The crucible is fixedly connected into the furnace body. The outer side of the furnace body is fixedly connected with a furnace tilting rod. The furnace body is fixedly connected to a base. One end of the base is fixedly connected with a first sleeve, and a supporting frame is movably inserted into the first sleeve. The top end of the supporting frame is fixedly connected with the feeding box. The high-temperature smelting furnace for producing the copper products is simple in structure, the phenomenon that workers make close contact with the high-temperature smelting furnace is avoided by adding the combination of an electric resistance wire, a leaking net and a cam, uniform feeding is achieved, heating is conducted while stirring is performed, block-shaped materials which are added can be fully preheated rapidly, crushed materials can sink to the bottom through rotation of the cam and further leak out of the leaking net to enter the crucible, automatic screening in the feeding process is realized, and the crucible crushing danger caused by improper manual operation is avoided.

The invention relates to an aluminum shell PTC (positive temperature coefficient) brake resistor which comprises a PTC core, an upper contact piece, a lower contact piece, a contact plate, a leading-out conductor, a positioning frame, an aluminum shell and an insulation sleeve. The upper surface and the lower surface of the PTC core are fitted with the upper contact piece and the lower contact piece and electrically connected with the outside through the leading-out conductor welded at one end of the contact plate, the vertically laminated PTC core and the contact pieces are positioned and fixed by the positioning frame, the insulation sleeve sleeves the outer side of the PTC core, and then the PTC core is embedded into the aluminum shell and fixed. Compared with the prior art, the brake resistor has the advantages of compact part structure, easiness in machining, good mechanical performance and the like.

The invention discloses a combustor with glass and of a complex structure. The combustor with glass and of the complex structure comprises a bottom shell and an upper cover. The bottom shell and / or the upper cover are / is made of glass. An upper end opening of the bottom shell is covered with the upper cover. A flame distribution base made of metal and a flame cover made of metal are sequentially arranged between the bottom shell and upper cover from bottom to top. Air inlets exposed out of the bottom of the bottom shell are formed in the flame distribution base. An outer circular flame outletis formed between the bottom shell, the upper cover and the flame cover. An outer circular channel enabling the outer circular flame outlet to communicate with the air inlets are formed between the bottom shell, the flame distribution base and the flame cover. A central hole is formed in the upper cover. Inner circular flame outlets through which flames can come out of the central hole are formedbetween the flame distribution base and the flame cover. The flame distribution base communicates with the flame cover to form an inner circular channel enabling the inner circular flame outlets to communicate with the air inlets. The bottom shell and the upper cover are made of glass and located on the outer side. The combustor with glass and of the complex structure has the characteristics of being high in corrosion resistance, resistant to color changes and easy to clean, and an outer shell is formed to protect internal metal components.

The invention provides a stent conveying system. The stent conveying system comprises an inner pipe, an outer pipe and a guide rail lock assembly. A shifting piece assembly and a handle assembly sleeve the outer portion of the guide rail lock assembly. The tail end of the inner pipe is fixedly connected with the tail end of the guide rail lock assembly, and a rear release assembly and a flushing assembly are further arranged at the tail end of the guide rail lock assembly. The outer pipe is arranged at the front end of the inner pipe in a sleeving mode, and the tail end of the outer pipe is connected with a connecting rod in the shifting piece assembly through a detachable lock catch structure. The handle assembly sleeves the outer portion of the shifting piece assembly. Internal threads of a rotating handle in the handle assembly are meshed with external threads of a shifting piece in the shifting piece assembly. The stent conveying system is simple in structure and excellent and reliable in performance. In the release process of a covered stent, the covered stent can be stably and accurately released in the mode of combining rotary accurate release and sliding rapid release, andthe problem that due to the fact that the covered stent blocks blood flow for a long time, a blood vessel or an aneurysm is broken can be avoided; and meanwhile, the problem that the release accuracyof the stent is influenced by the wind bag effect can be avoided.

The invention relates to the field of vehicle-mounted accessories and discloses a vehicle-mounted lock fastener structure. The vehicle-mounted lock fastener structure is used for mounting and fixing of a display screen panel and a center console and comprises at least one fastener position end and a rotary detaching arm connected with rotating arms of the fastener position ends. The lock fastenerposition ends comprise fastener position blocks, fastener inlet pre-pressing elastic arms are arranged on the rear faces of the fastener position blocks, and ejection elastic arms are arranged on thefastener inlet pre-pressing elastic arms. By adopting the vehicle-mounted lock fastener structure, the assembly and disassembly force is small, the risk of fracturing of a display screen body due to disassembly and assembly can be effectively avoided, and the vehicle-mounted lock fastener structure is simple in structure and low in cost.

The invention relates to the technical field of medical instruments, and discloses a transcatheter interventional artificial valve. The artificial valve comprises a stent, a sealing membrane, a tissueleaflet, a skirt pocket frame and an outer skirt pocket, wherein the stent is of an annular structure capable of expanding and contracting in a radial direction; the sealing membrane is arranged on an inner surface of the stent; the tissue leaflet is arranged inside the stent, and an outer edge of the tissue leaflet is sewn on an inner surface of the sealing membrane; the skirt pocket frame is arranged on an outer side of the stent in a protruding mode; the outer skirt pocket is arranged on an outer surface of the stent, an upper end of the outer skirt pocket is sewn with the stent, a lower end of the outer skirt pocket is sewn with the skirt pocket frame, and the outer skirt pocket can be unfolded along with the skirt pocket frame in a valve releasing process. The artificial valve can effectively reduce valve perivalvular leakage and prevent backflow.

The invention discloses a colored plastic mobile phone rear cover manufacturing process, which is characterized in that compared with the prior art, a colored plastic mobile phone rear cover (6) produced by the colored plastic mobile phone rear cover manufacturing process is provided with a hole site (7) for mounting a camera, and four corners and four sides of the colored plastic mobile phone rear cover (6) are provided with fixedly connected reinforcing ribs (8); the reinforcing ribs (8) and the colored plastic mobile phone rear cover (6) are seamlessly and fixedly connected or integrally formed, the colored plastic mobile phone rear cover (6) sequentially comprises a shading layer (5), a reflecting layer (4), a shell layer (1), a texture layer (2) and a functional coating (3), and according to actual requirements, L * a * b * values of the colored plastic mobile phone rear cover (6) comprise a * and b * values of the shell layer (1) and L * values of the reflecting layer (4). A series of problems existing in the colored plastic mobile phone rear cover manufactured by the mobile phone shell rear cover manufacturing process are solved.

The invention relates to a system (1) for assembling electrical cabinets (2) in a switchboard (10), comprising: a fixing ring (6) extending vertically along the rear side (5a) of each electrical cabinet; one or several Assembly rails (4), each assembly rail comprising a vertically extending insertion opening (7), each assembly rail designed to slide vertically along the group formed by the engagement of the two fixing rings of two adjacent electrical cabinets , the two fixing rings (6) are located in the insertion opening.

The invention provides a double-triangle polytetrafluoroethylene sealing O ring, the cross section of the polytetrafluoroethylene sealing O ring is a quadrangle formed by two isosceles triangles witha common bottom edge, the polytetrafluoroethylene material serving as the sealing O ring has the defect that the material is hard, due to the fact that the texture of a quartz window is brittle, if face sealing is used like a silica gel O ring, needed pressure is quite large, the quartz window can be easily crushed by the force, while two contact ends of the O ring are machined into triangles, thesurface contact is changed into the line contact, the pressure intensity is greatly increased under the same pressure, the window can be sealed without need of large force, and the problem that the window is crushed due to too large pressure is solved.