42results about How to "Firm and reliable" patented technology

The invention relates to a large-volume concrete floor reinforcement supporting system and a construction method thereof. The supporting system comprises a floor lower layer reinforcement, inner supporting steel columns, additional steel columns, first supporting beams and second supporting beams, a platform plate is laid above a horizontal support, and additional supports are fixedly connected between vertical supports. The construction method includes the steps of construction of the lower layer reinforcement, construction of the inner supporting steel columns, construction of the additionalsteel columns, construction of the first supporting beam, the second supporting beam, the additional supports and the like, and then laying the platform plate above the horizontal support. Accordingto the large-volume concrete floor reinforcement supporting system and the construction method thereof, the additional steel columns are connected with the floor lower layer reinforcement, the inner supporting steel columns and the additional steel columns are fixedly connected with the horizontal support, the platform board is installed on the horizontal support so that the platform board can quickly become a binding platform for an upper portion reinforcement, the structure and procedure of laying large-volume concrete cooling cold water pipes in a reinforcement supporting frame body are eliminated, the platform plate is removed after binding the upper reinforcement, and construction is convenient.

The invention relates to the technical field of sterilization equipment, in particular to a base structure of a special sterilization equipment placement frame. The technical scheme adopted in the present invention is: a special sterilization equipment placing frame base structure, including a square base body, a cylindrical placement groove is provided at the center of the base body, the depth of the placement groove is less than half of the thickness of the base body, and the placement groove There are concentrically distributed cylindrical positioning holes at the center, and the positioning holes run through the main body of the base. A cylindrical structural fixing hole is respectively provided, and vertically distributed snap-fitting grooves are provided on the outside of the structural fixing hole. The advantages of the present invention are: it is very convenient to use, flexible and convenient to operate when replacement is required, it can be directly connected and fixed with the placement frame, and can also be directly connected with the sterilizing equipment, and the firmness of the connection is more reliable.

The invention discloses an apparatus for fixing the tail fiber and the probe of a portable Raman spectrometer. The apparatus comprises an upper cover of a case for disposing the Raman spectrometer, the upper cover is a hollow box body, one side of the upper cover is connected with a cover plate through a loose leaf, the cover plate is buckled to the upper cover, the cavity of the upper cover is filled with foam, a tail fiber groove for placing the tail fiber and a probe groove for placing the probe are correspondingly dug in the foam, and the locus of the tail fiber groove has an arc shape. The apparatus allows the tail fiber and the probe to be firmly and reliably fixed, so the shake of the probe and the tail fiber in the case is prevented; and the hollow space in the upper cover is utilized to dispose the tail fiber and the probe, so the volume of the whole case is saved, thereby the whole case is compact and portable. Grooves for preventing the shake of the tail fiber and the probe are made by using the foam, and the locus of the tail fiber groove is composed of a plurality of segments of arcs, so the tail fiber can be effectively protected from excessive bending damages.

The invention relates to the technical field of gear assembling, in particular to an improved gear assembling connection supporting frame. According to the adopted technical scheme, the improved gearassembling connection supporting frame comprises a rectangular first body assembling connection structure; an integrally formed rectangular second body assembling connection structure is arranged on the left side end face of the first body assembling connection structure; a cylindrical first center assembling hole is formed in the center position of the right side end face of the first body assembling connection structure; a cylindrical first center assembling clamping hole is formed in the center position of the first center assembling hole; and the center position of the left side of the first center assembling clamping hole is provided with a cylindrical center positioning connection hole penetrating a whole part. The improved gear assembling connection supporting frame has the beneficial effects that due to the reasonable structural design, the improved gear assembling connection supporting frame is more convenient during assembling connection, the firmness is more reliable after assembling connection, and the stability of various gear structures in the using process can also be guaranteed.

The invention relates to the technical field of pipeline fittings, in particular to a special anti-loosening connection fastener for pipelines. The technical solution adopted in the present invention is: a special anti-loosening connection fastener for pipelines, including a cylindrical connector main structure made of metal materials, and a trapezoidal snap-fit ​​fastening is provided in the middle of the right side of the main structure of the connector. Groove, the fastening groove runs through the right cylindrical surface of the main structure of the connector, the top of the main structure of the connector is provided with an opening slope, the opening slope and the fastening groove are connected through an arc-shaped opening structure, the main structure of the connector The bottom of the base is an integrally formed cylindrical assembly base, and the assembly base is provided with four base engaging holes evenly distributed around the circumference. The invention has the advantages of improving the efficiency of pipeline connection, making the assembly and connection of pipelines more convenient, and the firmness after connection is more reliable. Through the multi-directional anti-loosening design, the parts have better anti-loosening effect. The safety of the pipeline is more reliable when used.

The invention belongs to the technical field of processing and manufacturing of hangers. The hanger hook pressing device comprises a substrate, a pressing mechanism, a fixing mechanism and a positioning mechanism, wherein the substrate comprises two sidewalls which are arranged oppositely; the pressing mechanism is installed at one end of the substrate and is used for pressing a hook on a wood hanger; the pressing mechanism comprises a handle and a pressing shaft which is articulated with the handle; the fixing mechanism is installed at the other end of the substrate and is used for fixing thewood hanger; the positioning mechanism is installed on the substrate, is positioned between the pressing mechanism and the fixing mechanism and is used for positioning the relative position between the hook and the fixing mechanism. The hanger hook pressing device provided by the invention can make the hook be difficult to deform when the hook is assembled on the wood hanger, is high in processing precision, can alleviate the labor intensity and can promote increment of production benefits.

A speed change box oil level observation device comprises an inner end cap, an outer end cap, a star-shaped metal support and a transparent piece; the inner end cap is internally provided with an inner front cavity and an inner rear cavity; the outer end cap is internally provided with an outer front cavity and an outer rear cavity; the inner front cavity communicates with the outer rear cavity sequentially through the inner rear cavity and the outer front cavity; an inner step is arranged at the position of the joint of the inner front cavity and the inner rear cavity; an outer step is arranged at the position of the joint of the inner rear cavity and the outer front cavity; the star-shaped metal support is embedded in a support groove formed between the inner step and the outer step; the transparent piece is embedded in the position of the joint of the outer front cavity and the outer rear cavity; when the star-shaped metal support is assembled, the inner step needs to be downwards pressed and deformed so that the star-shaped metal support can be pressed; and when the transparent piece is assembled, an inner elbow feet need to be rotated and extruded in the direction of the outer front cavity so that the transparent piece and an outer O-shaped ring can be pressed. By means of the speed change box oil level observation device, the oil level height of a speed change box can be judged, the accuracy degree is high, observation is convenient, the assembly efficiency is high, the sealing performance is high, and it can be avoided that lubricating oil leaks from the interior and the exterior of the observation device.

The invention relates to the technical field of pipe fittings, in particular to a special adjustable pipe assembly connecting piece. The special adjustable pipe assembly connecting piece comprises a rectangular main body fixed base; an integrally molded cylindrical connecting assembly column is arranged in the center position of the upper end of the main body fixed base; the axis direction of theconnecting assembly column is the same with the width direction of the main body fixed base; the connecting assembly column is provided with an inverted U-shaped clamping support piece; U-shaped two edges of the clamping support piece are positioned at two ends of the connecting assembly column; the connecting assembly column and the clamping support piece are connected through connecting bolts; cylindrical wear resisting gaskets are arranged between two ends of the connecting assembly column and the clamping support piece; and the clamping support piece can perform a rotating motion relativeto the main body fixed base. The special adjustable pipe assembly connecting piece has the advantages of simple structure, convenience in operation, higher use flexibility, capability of allowing themounting operations of pipes under more complicated conditions, more convenience in use and higher firmness reliability after fixation.

The invention relates to the technical field of gear structures, in particular to a specific durable bevel wheel. By means of the technical scheme, the specific durable bevel wheel comprises a cylindrical body connecting supporting column, clamped assembly connecting helical teeth are circumferentially and evenly distributed on the outer cylinder face of the body connecting supporting column, theupper and lower end faces of the clamped assembly connecting helical teeth are overlapped with the upper and lower end faces of the body connecting supporting column, a cylindrical center assembly connecting hole penetrating an overall part is formed in the center position of the upper end of the body connecting supporting column, a rectangular center positioning connecting groove is formed in theposition of the positive front end of the inner cylinder face of the center positioning connecting groove, the center positioning connecting groove completely penetrates the upper and lower end facesof the body connecting supporting column, and cylindrical stable assembly connecting holes are circumferentially and evenly distributed on the upper end face of the body connecting supporting column.The specific durable bevel wheel has the advantages that the assembly and connecting firmness is more reliable, durability is better, and the service life in the using process after assembly is longer.

The invention relates to the technical field of connecting fasteners, in particular to a special multifunctional position-stopping connection piece. According to the technical scheme adopted by the special multifunctional position-stopping connection piece, the special multifunctional position-stopping connection piece comprises a main body assembling and fixing connection seat, an integrally-formed cylindrical reinforcing connection supporting column is arranged in the center of the upper end of the main body assembling and fixing connection seat, a cylindrical first position-stop connectioncolumn is arranged in the center of the upper end of the reinforcing connection supporting column, and two sets of spirally-distributed first assembling connection threads are arranged on the position, close to the upper end, of the outer cylindrical surface of the first position-stop connection column; the upper ends of the first assembling connection threads and the upper end face of the first position-stop connection column are located on the same horizontal plane; and four rectangular clamping-joint anti-loosing connecting grooves which are evenly distributed circumferentially are formed in the connecting position of the main body assembling and fixing connection seat and the reinforcing connection supporting column. The special multifunctional position-stopping connection piece has the advantages that pipeline pieces with different structures can be assembled and sealed, thus a substance in the pipeline structure is safer and more reliable when the pipeline structures are not used, and the special multifunctional position-stopping connection piece is wider in using range and more convenient to use.

The invention discloses a movable V-shaped thrust rod sealing cover withholding machine and belongs to the field of V-shaped thrust rod machining equipment. The movable V-shaped thrust rod sealing cover withholding machine is characterized in that an end cover riveting tool is connected to the lower portion of a hydraulic cylinder (1) and comprises fixing mechanisms (3) and a downward-pressing riveting mechanism, the power output end is positioned through the vertical fixing mechanisms (3) on the two sides, and an end cover (6) of a V-shaped thrust rod (2) is pressed through the downward-pressing riveting mechanism and riveted to the top of an upper ball base (7); the contact end face of the inner side of the lower portion of the downward-pressing riveting mechanism and the upper portion of the upper ball base (7) is provided with a plurality of elastic clamping riveting points. According to the movable V-shaped thrust rod sealing cover withholding machine, the movable end cover riveting tool is arranged on the lower portion of the hydraulic cylinder, can be positioned through the hydraulic cylinder and can also achieve the downward-pressing and riveting action through the elastic clamping riveting points, the movable V-shaped thrust rod sealing cover withholding machine is suitable for a long or short production line and suitable for large-scale production, and large-scale and standard production of products can be achieved more conveniently.

The invention discloses a winding shaft which is formed in a way that a plurality of expansion rings are serially connected to a main shaft, wherein each expansion ring comprises an outer ring, a first reset spring piece and a second reset spring piece, the periphery of a guide seat is provided with a plurality of arc incline sliding sections, the outer ring is sleeved on the periphery of the guide seat, the outer ring is provided with a plurality of slide block holes and a plurality of friction piece holes, the tops of arc slide blocks are inserted into the corresponding slide holes, the tops of the arc slide blocks can partially exceed the outer surface of the outer ring when sliding, the bottom surfaces of the arc slide blocks support against the arc incline sliding sections of the guide seat, one end of the first reset spring piece is fixedly connected with the arc slide blocks and the other end supports against the inner hole wall of the outer ring, friction pieces are inserted into the corresponding friction piece holes of the outer ring, one end of the second reset spring piece is fixedly connected with the outer ring and the other end supports against the bottoms of the friction pieces, and the tops of the friction pieces exceed the outer surface of the outer ring. A steel pipe and a plastic pipe can be tensioned, and the winding material with high sanitation requirement can be wound, thus the winding shaft has a wide application range.

The invention discloses a toggle slide comprising a fixed seat, a plug, a friction hub, a spring and a toggle cam, wherein the fixed seat is provided with a sliding hole connected with pipes in a sliding way; the plug is fixedly connected with the fixed seat; the friction hub is provided with a pivot section, a control section and a hoop section, the hoop section can hoop pipes, and the pivot section is pivoted at the fixed seat to enable the friction hub to rotate between a lock position and a release position; the spring is arranged in the fixed seat to generate elasticity enabling the friction hub to be kept at the lock position; the toggle cam is provided with a cam section pivoted in the fixed seat and a toggle section extending out of the fixed seat, and the cam section can act at the front of the control section to enable the friction hub to rotate between the lock position and the release position. In the invention, the space position of the friction hub is controlled by the lead change of the cam section so that the hoop and contact strength of the friction hub and pipes are controlled, the elasticity degree between the slide and pipes is controlled, and lock and release between the slide and pipes are realized.

The invention discloses a bactericidal breathable film, a preparation method and application thereof. The bactericidal breathable film contains carbon nitride and has air holes with a diameter of 100-200 nm. The preparation method of the bactericidal breathable film includes: after forming a film from a precursor solution containing carbon nitride, a high molecular polymer and an organic solvent, pre-drying, drying at 110-130°C after the pre-drying, and then removing the organic The solvent forms vent holes. The film prepared by the present invention has a bactericidal effect under visible light and is breathable, and can be used in antibacterial band-aids, infusion patches, medical dressings, bandages, medical adhesive plasters, plasters, greenhouse films, fresh-keeping bags, self-sealing bags, water purification devices, etc. field.

A magnetic universal handset carriage is characterized by comprising a pedestal, a universal connecting rod and a handset support structure. The pedestal and the handset support structure are detachably connected through threads and the universal connecting rod. The handset support structure has a round accommodation recess, and a support magnet is arranged in the round accommodation recess. The pedestal is fixed on a support surface. The shape of the support magnet is identical to the shape of the round accommodation recess. The support magnet is detachably fixed in the round accommodation recess. A small iron sheet is adsorbed on the support magnet and can be individually adhered to a handset rear housing.

The invention relates to a clearing support tool of a rotor of an MW (megawatt)-level permanent magnetic direct drive wind driven generator. The clearing support tool comprises a support H steel, an upper support end plate welded on the top of the support H steel, rib plates welded on two flanks of the support H steel, and a lower support end plate welded on the bottoms of the support H steel and the rib plates, wherein a protection end plate is arranged on the upper support end plate; the protection end plate is fixedly connected with the upper support end plate by virtue of a fastener; and lower support square pipes are welded beneath the lower support end plates. According to the clearing support tool of the rotor of the MW-level permanent magnetic direct drive wind driven generator, the support stability of the rotor can be realized by adopting three or more than three clearing support tools, and the cylindricity quality of the rotor is improved. By utilizing the clearing support tool, the clearing work of the inner wall of the rotor is safely, easily, conveniently and fast completed, the clearing efficiency is high, and the production efficiency is improved.

The present invention discloses electricity equipment, which comprises a shell, wherein foot rods are fixedly arranged on the bottom portion of the shell, the bottom portions of the foot rods are rollingly provided with rollers, a hollow cavity capable of extending left and right is arranged in the shell, the left end and the right end on the bottom end portion of the hollow cavity are respectively and symmetrically provided with a left sliding movement groove and a right sliding movement groove, a first motor is arranged in the shell between the left sliding movement groove and the right sliding movement groove, and a left screw rod and a right screw rod are respectively and symmetrically arranged in the left sliding movement groove and the right sliding movement groove, and are respectively provided with a left pressing fixation device and a right pressing fixation device in a matched manner. According to the present invention, the structure of the pressing fixation apparatus is simple, the production cost is low, the operation is simple and convenient, the working efficiency of the electric board pressure fixing molding is substantially increased while the waste of labor and material resources is reduced, the electric board being subjected to the pressure fixing molding is firm and reliable and is convenient and rapid to remove, and the flatness and the beautiful degree of the electric board are effectively improved.