21results about How to "Small section" patented technology

The invention relates to the technical field of surgical aspirators, and discloses a neurosurgical aspirator which comprises an aspiration body and further comprises a shell, the aspiration body is arranged in the shell, a positioning assembly is arranged between the aspiration body and the shell, a plurality of sliding grooves are formed in the shell in a penetrating mode, and the positioning assembly comprises a positioning ring, a locking ring, a connecting ring and a plurality of connecting rods. The connecting rods are arranged in the sliding grooves respectively, the locking ring is in threaded connection with the outer wall of the shell, the positioning ring is arranged at the ends, close to the locking ring, of the connecting rods, the connecting ring is arranged at the ends, away from the locking ring, of the connecting rods, and the attraction body is located in the connecting ring. By forming the sliding groove in the shell, the connecting rod is slidably installed in the sliding groove, the position of the connecting rod in the sliding groove is adjusted through the connecting ring, then the length of the positioning ring and the length of the suction body are controlled, a doctor can suck wounds with different depths conveniently, and meanwhile the positioning ring is matched to prevent the suction body from making direct contact with nervous tissue; and secondary injury in the operation process is prevented.

The invention relates to a variable-section spring type current lead which can be applied to superconducting electrical equipment such as a superconducting fan, a superconducting reactor and a superconducting cable and comprises a conductor substrate, a superconducting conductor and a flange cover plate, the flange cover plate is fixedly connected with a shell of a Dewar container, the conductor substrate penetrates through the flange cover plate, the superconducting conductor is located in the conductor substrate, and the superconducting conductor is located in the conductor substrate. One end of the conductor substrate is connected with the current leading-out terminal; the part, located below the flange cover plate, of the conductor substrate is made of a flexible conductive material, the conductor substrate is of a sandalwood-shaped structure, is in a spiral rising conical spring shape when unfolded and is in a disc shape when flattened, and the cone top of the conical spring shape is located on the bottom face of the flange cover plate. The joint of the conductor substrate and the current leading-out terminal is located at the cone bottom edge of the conical spring shape. Compared with the prior art, the invention has the advantages that: under different working conditions, the change of conduction heat leakage and electric loss can be realized by adjusting the length and the cross section, so that the heat loss is minimized under different working conditions.

The invention relates to the technical field of submerged arc furnaces, and discloses a large energy-saving direct-current submerged arc furnace which comprises a bottom plate and a fixing frame arranged on the bottom plate. According to the large energy-saving direct-current submerged arc furnace, the particle size of ore is controlled through extrusion and crushing, materials are automatically stricken by a strickling plate, a conical rod rotates and guides, the particle size is screened according to intervals, and ferromagnetic impurities are removed through a magnetic attraction belt; the electrode and furnace lining loss is reduced; inert gas is introduced into an airflow plate of a heating furnace to strengthen stirring of a molten pool and promote full contact of effective components and a fluxing agent, a full-direct-current framework is adopted to eliminate alternating loss, a double-inverse-star-shaped non-in-phase inverse parallel topology is matched, and mutual counteraction of current and a magnetic field is utilized, so that the material with the particle size exceeding the standard is obtained. Copper pipe hysteresis and eddy current loss are reduced, the operating temperature is controlled, the topological multi-pulse rectification optimizes the current waveform, the reactive power is reduced, and a high-capacity reactive power compensation device is omitted; and meanwhile, the length of the short net is shortened, the conductor section is optimized, an additional heat dissipation pipeline is not needed, and energy consumption and investment are reduced.

The invention discloses a movable supporting device for tunnel construction and a tunnel construction method. The problems that in the prior art, underground excavation construction of underground engineering is high in price and tedious in working procedure are solved. The movable supporting device for tunnel construction comprises a double-layer sleeve mechanism and a pushing mechanism used for providing jacking of the double-layer sleeve mechanism. The pushing mechanism comprises an outer-layer pushing driving part and an inner pushing driving part; the double-layer sleeve mechanism comprises an outer-layer sleeve and N inner sleeves, and N is larger than or equal to 2; the inner sleeves correspond to the inner pushing driving parts, the outer pushing driving parts correspond to the outer sleeves, and the adjacent inner sleeves, the inner sleeves and the outer sleeves and the outer sleeves and the tunnel can move relatively under the action of the pushing mechanisms. The equipment adopted by the invention is simple, efficient and low in manufacturing cost; meanwhile, excavation equipment can be flexibly selected according to actual conditions, and the reusability of the excavation equipment is good; and large-scale engineering application is facilitated.

The utility model discloses a shield door bearing driving device which comprises a door machine beam and a guide rail, the door machine beam is formed by splicing a lintel beam and a middle beam, supporting feet used for being connected with stand columns are arranged at the two ends of the lintel beam and the two ends of the middle beam, and the guide rail is connected with the side wall of the door machine beam. In the utility model, the door machine beam and the guide rail adopt a splicing structure, the weight of each single body is reduced, the installation is easy, the length of each single body of the door machine beam is reduced to half of the initial length or even less, the section of the guide rail is reduced, and the transportation is convenient.

The invention discloses a settlement testing device for a rail transit comprehensive hub. The settlement testing device comprises a base, the upper side of the base is fixedly connected with a box body, one side of the box body is provided with a plurality of through holes, deformation sensors are arranged in the through holes, one side of the base is fixedly connected with a vertical plate, and one side of the vertical plate is provided with a soil screening device; the middle part of one side of the box body is fixedly connected with the measuring box, and one side of the measuring box is a visual scale plate; the upper end of the vertical plate is fixedly connected with a transverse plate, the transverse plate is provided with a multi-stage pressing device, and the multi-stage pressing device extrudes soil in the measuring box and the box body; the system further comprises a water spraying device and a station model, and the station model is embedded in the box body. The porosity of a construction site is simulated through the soil body in the box body, and test soil bodies with different depths and different porosities can be prepared, so that a pre-test is performed in a laboratory, and a proper construction scheme is conveniently formulated according to the characters of the soil bodies on different construction sites.

The invention belongs to the technical field of noodle processing, and discloses a method for processing high-calcium noodles, comprising a machine body, an operation box fixedly installed on the top of the machine body, a controller arranged on one side of the operation box, a conveyor belt arranged at the bottom of the operation box and located at the top of the machine body, a feed pipe arranged at the top of the operation box, a first pressing roller arranged at one end of the feed pipe and located at the top of the operation box, a second pressing roller arranged at the bottom of the first pressing roller and located inside the operation box, and two cutting rollers arranged at the bottom of the second pressing roller. When the processed noodles are cut, the first nozzle and the second nozzle are moved left and right by the action of the first motor, the threaded rod and the movable block, and the first nozzle and the second nozzle are driven to move up and down by the movement of the mounting block, so that flour or water can be sprayed on the noodles when they are cut, so as to prevent the noodles from being too dry or too wet when they are cut, keep the humidity of the noodles moderate, reduce the occurrence of cross sections when they are cut, and improve the effect of noodle processing.

The invention relates to the field of building structures, in particular to a spoke type single-layer rigid reticulated shell structure which comprises an inner ring beam, an outer ring beam and a plurality of inner ring beams. The outer ring beam is of a plane structure, and the plane where the outer ring beam and the plane where the inner ring beam are located are not coplanar; the web members are arranged between the inner ring beam and the outer ring beam and used for connecting and supporting the inner ring beam and the outer ring beam which are not coplanar. The inner ring beam and the outer ring beam which are not coplanar and the web members jointly form a reasonable spatial curved surface form, the overall structure is in a three-dimensional stress characteristic, an internal force self-balancing system is formed, only vertical force is transmitted to a lower supporting structure, and the bending moment effect is not generated. Compared with an existing frame and truss structure, the structure height of the support is smaller, the section of the lower supporting structure is smaller, and the structure is light, attractive and economical and applicable; compared with an existing spoke type tensioning structure, the tensioning structure is large in rigidity, small in deformation, easy and convenient to design and construct and higher in adaptability to a building envelope. The invention can be used for building roof structures.

The embodiment of the present application provides a composite structure for building reinforcement, which comprises a plate-shaped composite structure, wherein the plate-shaped composite structure is fixedly attached to the surface of a building and comprises a first fiber layer, a metal layer and a second fiber layer from the surface of the building outward in sequence; the plate-shaped composite structure has flexibility and changes with the shape of the surface of the building after being fixed to the surface of the building. The plate-shaped composite structure in the composite structure has the characteristics of low cross-sectional height, large unfolding area and stress dispersion, and has the advantages of good adhesion after being fully glued to the interface of the building, can effectively provide support, can provide rapid reinforcement and increase the bearing capacity for the building with small construction space, and is especially suitable for the installation of internal small-limit buildings and tunnels. The composite structure can very effectively, flexibly and quickly provide a new reliable option for the constructor, and realizes the life extension of the reinforced building.

The utility model discloses an automobile wire with ultrahigh terminal retentivity, which relates to the technical field of automobile wires and comprises an insulating layer, a plurality of conductor layers are arranged in the insulating layer, each conductor layer is formed by twisting a plurality of annealed soft copper wires, a plurality of sheath layers are detachably connected outside the insulating layer, each sheath layer comprises a lower sheath and an upper sheath, and the lower sheath and the upper sheath are respectively provided with an outer sheath and an inner sheath. The upper sheath is hinged to the upper end of the lower sheath, the end face, far away from the hinged position, of the lower sheath is fixedly connected with an embedded part, the end face, far away from the hinged position, of the upper sheath is provided with an embedded groove matched with the embedded part, and the two adjacent sheath layers are detachably connected. And if a certain part of the electric wire has a fault, a protective sleeve of the electric wire may be damaged to maintain the fault part, and the requirement of 50N of 0.35 mm < 2 > cannot be met.

The application provides a charging socket, and relates to the technical field of charging accessories. The charging socket comprises at least two power terminals, the power terminals are provided with connecting end faces, at least two connecting assemblies, the two connecting assemblies are connected with the connecting end faces of the two power terminals in one-to-one correspondence, and at least four conductive pieces, at least one power terminal is connected with at least two conductive pieces through the connecting assembly. The application connects a single power terminal with multiple conductive pieces (such as at least two conductive pieces) through the connecting assembly, so that the charging power is increased. Compared with the method of increasing the charging power by using a single large-section wire, since the increased power and total current-carrying capacity remain unchanged, the single large-section wire is replaced by multiple conductive pieces, so that the cross-sectional area of each conductive piece is smaller than that of the single wire, the conductive piece with a small cross section is easier to prepare, and the cross section is smaller, so the conductive piece is easier to bend and wire, and assembly is facilitated.

The invention discloses a flexible combined type sealing device and a sintering circular cooler, and belongs to the technical field of sintering circular coolers. The sealing device comprises at least one flexible isolator sealing pressure regulating unit which is arranged in the moving direction of a trolley of the sintering circular cooler, and each flexible isolator sealing pressure regulating unit comprises a steel wire curtain layer capable of falling to the surface of sintered ore along with gravity, a fixing piece and a connecting piece, wherein the fixing piece and the connecting piece are used for connecting the steel wire curtain layer to the inner side of a smoke hood. The two rotatable bolts are arranged in the middle of the outer side of the air outlet pipe, the two iron wires on the two sides of the upper end of the steel wire curtain layer are made to ascend by rotating the two bolts, and therefore the whole steel wire curtain layer is made to ascend. And the air seal sealing pressure regulating unit is matched with the flexible isolation body sealing pressure regulating unit and can spray hot air to the two sides of the lower end of the steel wire curtain layer, so that air seal is formed between the two sides of the steel wire curtain layer and the trolley.

The application discloses a centrifugal fan air outlet structure, a fan applying the same and a combined fan, and belongs to the technical field of centrifugal fans. The centrifugal fan air outlet structure comprises an outer shell plate, an air outlet and an air inlet. The air inlet is arranged on one side wall of the outer shell plate. The other side of the outer shell plate is open to form an opening. The air outlet is arranged on one end of the outer shell plate. The centrifugal fan air outlet structure further comprises a wind guide part. The wind guide part is arranged on the upper edge of the outer shell plate connected with the air outlet. When viewed along the air outlet direction of the air outlet, the included angle between the inner side of the wind guide part facing the inner cavity and the horizontal plane is B, and 0° < B ≤ 15°. The flow rate difference of the air inlet is adjusted through the inclination angle of the wind guide part, so that the airflow turbulence at the outlet is reduced, the noise of the fan is reduced, and low-pressure surge is eliminated.

The utility model belongs to the technical field of new energy automobiles, and particularly relates to a ceramic fireproof liquid-cooled high-voltage cable for an electric automobile, which comprises a sheath layer, a shielding layer, an insulating layer, a conductor and a hollow pipe are arranged in the sheath layer, the shielding layer adopts an oxygen-free metal copper wire, the surface of the shielding layer is tinned, the purity of the copper material is required to be more than 99.99%, and the insulating layer is made of an insulating material. A braided layer is arranged inside the shielding layer, a layer of aluminum-plastic composite belt is wrapped outside the braided layer, the shielding layer is composed of the braided layer and braided copper wires, the braiding process is adopted for shielding, braided wires are 0.21 mm, and the braiding density is 85%. According to the ceramic fireproof liquid-cooled high-voltage cable for the electric vehicle, the cooling pipe made of the polyurethane material is added to the center of the conductor, so that the temperature of the conductor can be effectively reduced while the flexibility of the original conductor is ensured, the cross section of the conductor is smaller, the cost of the cable is lower, and the size is smaller; the fireproof performance of the cable is increased, and the current-carrying capacity of the cable can be increased through combined use.

The utility model belongs to the field of large-span grid structure coal storage shed design, and particularly relates to a large-span grid structure coal storage shed gable wall structure which comprises a grid structure coal storage shed, inhaul cable supporting trusses, transverse supporting trusses, inhaul cable supports, triangular section three-dimensional trusses, inhaul cables, supporting rods, double-lug plates, end plates, reinforcing base plates, pin shafts and gusset plates. A cable supporting truss is arranged in the grid structure coal storage shed, and a transverse supporting truss is arranged in the grid structure coal storage shed. According to the utility model, the inhaul cable supporting truss is arranged, the inhaul cable supporting truss is composed of the triangular-section three-dimensional truss, the inhaul cable and the supporting rod, the triangular-section three-dimensional truss and the supporting rod are made of round steel pipes, and the inhaul cable is made of the prestressed steel wire bundle. During construction, after the inhaul cables are tensioned to generate pretension force, the triangular-section three-dimensional truss is supported through the supporting rods, the bending moment and deformation of the truss under wind load are reduced, and therefore the section of a rod piece is reduced, and the steel consumption is reduced.

The utility model discloses a flue type waste heat boiler which comprises a swirler, a steam generator, a membrane type economizer and a hyperbolic ash bucket which are sequentially connected in the vertical direction. The swirler is provided with an air inlet pipe seat which is tangentially arranged, so that the flowing track of high-temperature furnace gas is converted into spiral rotation from top to bottom, and the high-temperature furnace gas sequentially enters the steam generator and the membrane type economizer to be subjected to dividing wall heat transfer and then is discharged; technologies such as tangential air inlet, intensified heat transfer inside and outside a heating surface, a transition annular header, cold and hot state automatic positioning, a fin serpentine tube bundle and a hyperbolic ash bucket are adopted, and the explosion-proof function is achieved; the product replaces a membrane tube water cooling wall which is continuously used by a waste heat boiler in the prior art, so that the steam generator can be integrally arranged in a flue, the heat of furnace gas is completely absorbed, the section of the flue is smaller, and the flow velocity of flue gas is improved; and the steam yield is more than one time of that of a waste heat boiler with the same capacity in the prior art.

The application provides a high-temperature interference-resistant manganese-zinc ferrite magnetic ring applied to the field of magnetic rings, and through the cooperation between the heat exchange bin and the sheath, when the temperature in the magnetic ring continuously rises, the heat expansion capsule expands and extrudes the heat dissipation column capsule, and then the pressure is transmitted to the annular channel, so that the heat dissipation liquid and the internal gas in the annular channel flow back to the heat exchange bin, the M-shaped spring sheet is extruded, the M-shaped spring sheet is extruded to press the air bin, the gas in the air bin is blown away to the surface of the heat dissipation ceramic sheet through the exhaust hole, when the temperature of the heat dissipation ceramic sheet decreases, the heat expansion capsule retracts, under the elastic force of the M-shaped spring sheet, the liquid bin is extruded and the heat dissipation liquid in the liquid bin is pushed back to the annular channel and the heat dissipation column capsule, and the circulation heat dissipation operation is carried out, so that the heat generated by the magnetic ring during operation is reduced, the phenomenon that the anti-electromagnetic interference ability of the magnetic ring is reduced due to the high temperature of the magnetic ring is avoided, the operation stability is improved, the market prospect is good, and the application is suitable for promotion and application.

The utility model discloses a kind of polyethylene cables, it is related to cable technical field, including cable core, the cable core is made of four annular distribution wire core stranding, the wire core is made of conductor and the insulating layer being set in the conductor outside, the interstice of the cable core is filled with epoxy resin glue, overlapping wrapping iron fluorine long composite fireproof belt outside cable core, iron fluorine long composite fireproof belt is extruded and covered with thermoplastic silicone rubber inner protective layer, the outside braiding of thermoplastic silicone rubber inner protective layer is by tinned copper braid, the outside wrapping of tinned copper braid is glass fibre rubber coated cloth, the outside of glass fibre rubber coated cloth is covered with high temperature resistant aluminium plastic composite belt, the outside overlapping wrapping of high temperature resistant aluminium plastic composite belt is high silica fibre fireproof belt, the extruded and covered with thermoplastic halogen-free low smoke flame-retardant polyolefin outer sheath of high silica fibre fireproof belt, the scheme solves the problem that polyolefin sheath power cable exists in high temperature resistance and flame retardant performance aspect deficiency, cannot work stably under high temperature environment.

This utility model discloses a coating replenishment device, relating to the technical field of coating and encapsulation equipment. It includes an operating table and a connecting line, with a thermistor fixedly connected to the bottom end of the connecting line. The thermistor is coated via a coating mechanism. By setting up a coating mechanism and adjusting the height of each coating tube opening to be consistent through processing and assembly precision, this utility model provides a uniformly high-height coating surface for multiple points due to the consistent height and shape of the naturally formed micro-convex surfaces after each liquid overflow. Furthermore, the naturally formed coating surface after each liquid overflow provides a coating surface with very high repeatability. Because the viscous coating liquid has a high surface tension, the coating tube cross-section is small, and the internal extrusion naturally repairs the micro-convex coating surface without the influence of external forces such as scrapers that introduce air, thus minimizing coating defects such as bubbles and dents, facilitating the coating of thermistors.

The present invention provides a horizontal truss structural system supported by hinged columns, which includes a horizontal ring truss, an inner ring column and an outer ring column; wherein the horizontal ring truss includes an inner ring beam, an outer ring beam and a cross beam system for connecting the inner ring beam and the outer ring beam; the horizontal ring truss is hingedly connected to the inner ring column through the inner ring beam, and the horizontal ring truss is hingedly connected to the outer ring column through the outer ring beam. The structural system provided by the present invention bears the tension of the cable structure through the overall action of the horizontal ring truss, eliminates the local bending moment of the inner ring beam caused by the tension of the cable structure through the one-to-one correspondence between the horizontal ring truss nodes and the cable nodes, has a clear idea and clear force transmission, can reduce the cross section of the ring beam, and solves the problem of the existing technology that the cross section of the ring beam is large and affects the building effect and use.