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6results about How to "Increase friction factor" patented technology
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Fisheye needle applied to welding-free terminal
ActiveCN222563006UInsert firmlyprevent bucklingCoupling contact membersAnatomyBiomedical engineering
The utility model discloses a fisheye needle applied to a welding-free terminal, which comprises a functional area, and the fisheye needle is sequentially divided into a terminal strength area, a retention area, a transition area, an insertion area and a pre-insertion area by the functional area along the insertion direction of the fisheye needle; the surface of the fisheye needle is concaved to form the inner concave pits, the inner concave pits span the transition area and the insertion area, the two inner concave pits extend in opposite directions, and a central rib sheet is formed between the bottom surfaces of the two inner concave pits; the width of the fisheye needle is gradually reduced from the transition area to the retention area; the width of the fisheye needle is gradually reduced from the insertion area to the pre-insertion area; and the width of the central rib sheet is gradually reduced from the center to the two ends. According to the fisheye needle, the design that the two oppositely-sunken inner pits are separated by the central rib sheet is adopted, so that the fisheye needle has both hardness and elasticity.
Owner:HUANGYU PRECISION TECHNOLOGY (SUZHOU) CO LTD
Video electronic intelligent installation wiring auxiliary device
ActiveCN222601898Uincrease friction factorImprove the limit effectStructural engineeringMechanical engineering
Owner:ZHUHAI HUAYANG ELECTRONIC TECH CO LTD
Polyurethane thermal insulation pipe with anti-skid structure
The utility model relates to the technical field of polyurethane thermal insulation pipes, in particular to a polyurethane thermal insulation pipe with an anti-skid structure, which comprises a polyurethane thermal insulation pipe, a notch mechanism is arranged on the polyurethane thermal insulation pipe, an anti-skid mechanism is mounted on the inner side of the notch mechanism, the notch mechanism comprises a mounting groove, and longitudinal teeth are arranged on the inner side of the mounting groove. According to the anti-skidding mechanism, the anti-skidding mechanism is installed on the inner side of the installation groove in a clamped mode, the anti-skidding mechanism can be stably installed on the polyurethane heat preservation pipe in a clamped mode through the resilience force effect of a reset spring, and transverse anti-skidding grains and longitudinal anti-skidding grains in the anti-skidding mechanism are matched. The polyurethane thermal insulation pipe is relatively stable during placement or transportation, practicability is improved, and the whole anti-skid mechanism is an additional structure, can be taken down from the pipeline after being installed, is equivalent to an anti-skid tool, does not interfere with the polyurethane thermal insulation pipe and is high in practical applicability.
Owner:HEBEI YUANFENG PIPELINE ENG CO LTD
Double-seal nut fastening cylindrical battery cell
ActiveCN224417853UGuaranteed tightnessImprove structural stabilityElectrical batteryStructural engineering
The utility model relates to battery technical field, concretely relates to a double -layer sealing nut fastening cylindrical battery core. The utility model provides a double -layer sealing nut fastening cylindrical battery core, including the casing, the one end of casing is provided with through -hole, the one end of stud passes through the through -hole, and the stud is equipped with first sealing ring, the nut is equipped with second sealing ring in, and the nut can be connected with stud thread, the wedge washer is connected in the stud outside, along the axial direction of battery core, the wedge washer sets up between the nut and casing, and the wedge washer includes upper washer and lower washer, and the combined surface of upper washer, lower washer is provided with the wedge tooth that can adapt respectively, along the axial direction of battery core, the insulating washer sets up between the wedge washer and casing. The utility model can strengthen the structure stability after nut fastening, need not adopt laser welding to carry out fusion welding to the nut and stud, and the double -layer sealing ring inside and outside the casing can effectively guarantee the battery core sealing effect.
Owner:YANTAI LIHUA ELECTRIC POWER TECHNOLOGY CO LTD
Copper-based powder metallurgy friction material and preparation method thereof
InactiveCN119491142AImprove matrix strengthhigh strengthTransportation and packagingMetal-working apparatusFerrochromeTribology
The invention relates to the field of design and preparation of powder metallurgy friction materials, in particular to a copper-based powder metallurgy friction material and a preparation method thereof. Raw materials used in the method comprise, by mass, 45%-55% of copper powder, 8%-20% of iron powder, 6%-15% of ferrochromium, 16%-22% of graphite, 0.5%-4% of molybdenum disulfide, 0.5%-4% of tin sulfide and 0.5%-4% of nickel-coated tungsten disulfide, and the mass ratio of the tin sulfide to the nickel-coated tungsten disulfide is (1-2): (1-2). In the nickel-coated tungsten disulfide, the content of nickel is 5-40%; the sum of the total amount of molybdenum disulfide, nickel-coated tungsten disulfide and tin sulfide is less than or equal to 5%. The preparation method comprises the following steps: weighing raw material powder according to the designed components, mixing, pressing and sintering to obtain the product. The composition design has the characteristics of scientificity, simple and controllable process and the like, and the obtained product has excellent tribological performance and completely meets the friction braking requirement of high-speed heavy-load equipment of 400km / h and above.
Owner:CENT SOUTH UNIV
Pipe clamp for bicycle hub and sleeve
PendingCN119616971Aquick disassemblyavoid pinchingHubsFriction grip releasable fasteningsStructural engineeringGasket
The invention discloses a pipe clamp for a hub and a sleeve of a bicycle, which comprises arc-shaped clamping rings including a first arc-shaped clamping ring and a second arc-shaped clamping ring, the buffering ring is provided with a double-layer attaching part, and the inner ring of the arc-shaped clamping ring is in contact with the buffering ring; and in the radial outward direction of the buffer ring, the attaching part sequentially comprises a covering section and a convex tongue section, the covering section is clamped by the clamping position, and a kidney-shaped hole allowing a bolt to penetrate through is formed in the covering section. The kidney-shaped holes comprise the first kidney-shaped hole and the second kidney-shaped hole which are perpendicular to each other and attached in a crossed mode, a square through hole is formed in the overlapping position of the first kidney-shaped hole and the second kidney-shaped hole, the outline of the square through hole is square, the side length of the square through hole is smaller than the diameter of the bolt, and the diagonal length of the square through hole is larger than the diameter of the bolt. By the adoption of the buffer ring, a bicycle sleeve or a hub can be buffered and protected, the locating and tightening effect of the buffer ring is good, and the buffer ring also has the effect of improving assembly similar to that of a gasket for a bolt.
Owner:KUNSHAN XINGHAO PRECISION HARDWARE CO LTD