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

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.

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 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.

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.