289results about How to "Tight fit" patented technology

The invention discloses a preparation method of a multi-growth-factor slow release coating of a titanium and titanium alloy surface. According to the method, a plurality of layers of coatings containing nanoparticles of growth factors are prepared on the titanium surface by taking the nanoparticles as a growth factor carrier and charged high molecular thin films as a medium. The nanoparticles included in the coating are prepared by mixing polycation solution containing dopamine of certain concentration with polyanion solution containing the growth factors. The nanoparticles have good dispersibility, can protect the activity of the growth factors and are easy to fix on the surface of a material. By controlling the electric property of the nanoparticles and the high molecular thin films, nanoparticles carrying with different factors are embedded between the high molecular thin films. By adjusting the loading quantity and the loading sequence of different nanoparticles and the thickness of the coatings, effective control over release speed, release quantity and release sequence of the various growth factors can be realized.

The invention discloses a rotary lifting-type three-dimensional garage which comprises a parking frame, a carrier and vehicle carrying plates. The carrier is provided with a rotary driving device used for driving a carrier upright to rotate, a lifting seat is arranged on the carrier upright, a lifting driving device can drive the lifting seat to ascend and descend along the carrier upright, a lifting block is fixed on the lifting seat, each vehicle carrying plate comprises a vehicle carrying plate body and a sleeve platform, and the lifting block is coincident with each sleeve platform in shape and can be inserted into the same. The invention further discloses a vehicle carrying plate docking and lifting device for the three-dimensional garage. The vehicle carrying plate docking and lifting device comprises the lifting block and the vehicle carrying plates, and by applying the vehicle carrying plate docking and lifting device in the three-dimensional garage, one carrier can be matched with multiple vehicle carrying plates. The invention further discloses a method for parking vehicles in and getting the vehicles from the rotary lifting-type three-dimensional garage. By the structure of the rotary lifting-type three-dimensional garage, parking and getting the vehicles can be completed only through two actions including lifting and rotating.

A honed embossed adhesive tape basilemma is made of pure polyolefin resin, the roughness of the front face Ra value is 20-60 mu inch, the roughness of the back face Ra value is 60-200 mu inch, the production method thereof comprises steps of melting and extruding, embossing and finishing. The honed embossed adhesive tape basilemma prepared by the invention has special honed effect, even surface roughness, even thickness stability, good longitudinal and transverse tear resistance, good anti-blocking effect and excellent gluing effect. The method of the invention does not change the inner structure of the basilemma material, thus not influencing the physical performance of the basilemma material, and being applicable to production of honed embossed adhesive tape basilemma and production of honed basilemma for other special uses.

The invention discloses a device for locking a high-speed bearing. The device comprises a locking screw nut, a lock washer and an elastic collar, wherein the locking screw nut comprises a main body which is screwed with outer threads in a shaft; first anti-loose teeth parallel to the axis are arranged on the outer threads; a plurality of convex blocks which face outwards in the radial direction and the axial direction are arranged on the outer circumference wall of the main body; a groove for accommodating the elastic collar is formed in the inner wall of the axial part of the convex blocks; a plurality of radial bosses are formed in the outer circumference wall of the lock washer; a notch for accommodating the radial bosses is formed between every two adjacent convex blocks; second anti-loose teeth meshed with the first anti-loose teeth are arranged on the inner side wall of the lock washer; the outer diameter of the lock washer is smaller than or equal to the largest distance between the inner walls of the parts facing outwards in the axial direction, of two convex blocks; the distance between the inner side walls close to the end parts of the parts facing outwards in the axial direction, of the convex blocks, of the groove to the end surface where the main body is connected with the convex blocks, is greater than or equal to the sum of the thicknesses of the lock washer and the elastic collar. The device has the advantages that the locking moment is not changed.

The invention discloses an energy dissipator for an architectural drainage system. A simple and easy energy dissipation device used at present has the defects of large drainage noise, space occupation of a piping shaft and the like. The energy dissipator for the architectural drainage system is characterized in that an inner cavity of a main body is provided with two arc-shaped water flow baffle plates arranged up and down, the arc shapes of the water flow baffle plates are downward, and the width of the water flow baffle plates is 1/3 to 2/3 of the width of the main body; and the upper part of the main body is provided with a stand pipe switching-in port, the stand pipe switching-in port is communicated with the inner cavity of the main body, the lower part of the main body is provided with a stand pipe switching-out port which is communicated with the cavity of the main body. The invention can effectively eliminate the energy of water flow, can also lower the drainage noise and decreases the space of the piping shaft.

The invention relates to a light projection angle adjusting structure of a lamp, comprising a rotating support assembly for connecting an electrical appliance box and a lamp body; the assembly comprises a rotating shaft connected with the lamp body and a rotating seat connected with the electrical appliance box; the rotating shaft and the rotating seat realize the angle adjustment of a lamp body through the longitudinal matching of an annular groove, an annular flange and mutually occlusive trapezoid sawteeth and are fixed through bolts after being adjusted; and the rotating seat and the electrical appliance box realize the angle adjustment and fixation of the lamp body in a horizontal circumferential plane through the horizontal matching of a flange plate, the annular groove and bolts. The structure is also provided with scales for facilitating adjusting process parameters. The structure provided by the invention realizes wide-range adjustment of an angle of the lamp and is flexible and convenient in adjustment mode; and the structure can be firmly fixed after being adjusted, is wide in application range and particularly suitable for angle adjustment of lamps with large sizes and weights.

The invention provides a driving device that enables easy installation and excellent manufacture efficiency of shape memory alloy parts, and a method of manufacturing the same. The driving device comprises shape memory alloy parts (2, 2...), a base body part (4) having fixing portions (3, 3), a movable part (5) that moves relative to the base body part in a way that the shape memory alloy parts contract because power is on , a force applying unit for applying force to the movable part in a direction when the shape memory alloy parts are in a shape under a power-off state, and a terminal fitting (6) that has press plates (20, 21) covering all sides of the fixing portions and is embedded with the fixing portions. An end basic side (2a) of each shape memory alloy part is configured along the surface of each fixing portion, and an end front side (2b) of each shape memory alloy part is configured along the back side of each fixing portion from an end surface portion (14) to a back side of each fixing portion in a returning manner. The end basic side and the end front side are clamped between the fixing portions and the press plates.

The invention discloses a method for manufacturing a sheet metal part stereo chemical milling sample plate. Based on the advantages of flexibility, transparency and high sticking performance, a gelatin plate is attached to a die tire, line drawing is carried out, then the gelatin plate is transferred to a blank; a chemical milling graphic is transferred to the blank; and the chemical milling sample plate is manufactured. By adopting the manufacturing method, the sample plate blank and the die tie are only required to be positioned once; the method has the advantages of simple operation, high practicability and high efficiency; and convenience is supplied to manufacturing of the stereo chemical milling sample plate.

The invention discloses a method for adopting a quantitative structure-activity relationship model to predicting soil or sediment adsorption coefficients of an organic compound. On the basis that a molecular structure of the organic compound is known, the soil or sediment adsorption coefficients of the organic compound can be quickly and efficiently predicted only by calculating a molecular descriptor with the molecular structure and applying a built QSAR (quantitative structure-activity relationship) model. The method is simple, quick, low in cost and capable of saving manpower, material resources and financial resources needed for experiment testing. Modeling is performed according to guidelines on building and using the QSAR model of the Organization for Economic Cooperation and Development, and a simple and transparent multiple linear regression analysis method is applied, so that easiness in understanding and applying is realized; the method has clear application domain, good fitting capacity, robustness and predicting capability; by the method, the soil or sediment adsorption coefficients of the organic compound in the application domain can be effectively predicted, and necessary basic data are provided for ecological risk evaluation and management of the compound; the method has important significance.

The invention discloses a model method for predicting reaction rate constant (kOH) of organic matter in atmosphere and hydroxyl. On the basic of obtaining a compound molecular structure, through a multiple linear regression method, a kOH model with 298K and temperature adherence is built, and a kOH value of organic compounds under 298K or other temperature can be predicted rapidly and efficiently; the goodness of fit, robustness and prediction capacity of the model are represented according to the guide rule, about the building and verification of the QSAR model, of the OECD. The application area of the model is definite, and compounds of nearly 900 different kinds are included; the prediction model is simple and is programmed easily, and significance data support can be provided for evaluation of environment durability of organic chemicals.

The invention discloses a fan impeller assembly machine comprising an assembly table. The assembly table is provided with a rotary table, the rotary table is in transmission connection with a first rotary electric machine, the rotation axis of the rotary table is arranged in the vertical direction, a plurality of positioning shaft sleeves are evenly arranged on the rotary table around the rotationaxis of the rotary table, rotation adjusting components are arranged at the positions, corresponding to the positioning shaft sleeves, of the assembly table, and the rotation axis of the positioningshaft sleeves is arranged in the vertical direction; and the assembly table is sequentially provided with a blade assembly mechanism, a front disk assembly mechanism, a reverse welding mechanism and atransfer discharging mechanism in sequence in a manner of surrounding the rotary table, and the blade assembly mechanism, the front disk assembly mechanism, the reverse welding mechanism and the transfer discharging mechanism correspond to the different positioning shaft sleeves. The fan impeller assembly machine uses machines to automatically assembly a fan impeller, the manual operation is reduced, the assembly failure rate is reduced, and the assembly efficiency is improved.

The invention discloses a composite plastic tube which consists of a plurality of layers, wherein the outermost layer is an anti-wearing layer consisting of 100 parts by weight of low density polyethylene, 3-10 parts by weight of EVA (ethylene vinyl acetate copolymer) and 0.5-2 parts by weight of an antioxidant; the middle layer is a reinforcing layer consisting of 80-85 parts by weight of high density polyethylene HDPE 100 and 5-15 parts of nano calcium carbonate; the inner layer is a clean type water delivery layer consisting of 96-100 parts of high density polyethylene HDPE 100, 4-6 parts of antibacterial master batch and 2-4 parts of an antioxidant; the antibacterial master batch is prepared as follows: adding 70-75 parts by weight of high density polyethylene HDPE 100 into 20-25 parts by weight of a nano inorganic antibacterial agent containing sliver irons to obtain a mixture; mixing the mixture with 1-3 parts by weight of a silane coupling agent to obtain a mixture II; and drying the mixture II and 3-5 parts by weight of POE or a bulking agent to prepare the antibacterial master batch. According to the composite plastic tube disclosed by the invention, three layers of tube materials are different and are formed under the same thermoplastic process condition, and therefore, the layers are tightly embedded and are firmly connected.

Positive active material and negative active material separated by lead wires are coated on two sides of composite slab lattice so as to constitute bipolar plate. The said lead wires can be cut into certainshape to become positive pole plate or negative pole plate with single pole. Single adjacent batteries separated by lead wires can be connected in series. Positive pole plate, diaphragm, and negative pole plate of single battery are winded on same core axle. Winded pole plates and diaphragm fixed by plastic fixture becomes battery core. Dried battery core is installed inside cylindrical battery box so as to complete electrochemical procedure. Then, firming agent is filled into the box. The invention combines advantages of both of quasi-bipolar battery and cylindrical winded battery, possessing features of low internal resistance, high specific energy, high specific power, and long service life.

The invention discloses a nuclear magnetic resonance spectrum denoising method based on a neural network algorithm, and relates to a nuclear magnetic resonance spectrum denoising method. The method comprises the steps of simulating noiseless and noisy FID signals by utilizing matlab program codes, and generating a nuclear magnetic resonance simulation pure wave spectrum and a noise wave spectrum after Fourier transform; establishing a spectrogram data set of a plurality of samples; dividing the whole data set into a training set, a verification set and a test set; designing a neural network structure and selecting neural network hyper-parameters by using the verification set; testing and checking the neural network model by using the test data; further testing and inspecting the neural network model by using the experimental data; the denoising function of the nuclear magnetic resonance noise spectrum can be quickly realized, and the experimental time for collecting the nuclear magnetic resonance spectrum is saved. Noise of one-dimensional and two-dimensional nuclear magnetic resonance spectra can be removed, and spectral peaks of the spectra are reserved; the method is also suitable for removing noise of noise spectra of multiple signal-to-noise ratios, and spectral peaks of the spectra can be reserved. And the method has better robustness for various different noise wave spectrums.

The invention aims to provide a fixed anti-skid locking device which is convenient to install, firm and reliable and a multifunctional rod comprising the same. The fixed anti-skid locking device comprises a clamping block, a bolt and a fixing plate, wherein the bolt penetrates through the fixing plate and is fixedly connected with a threaded hole in the clamping block; a mounting groove which is sunken towards the center and extends in the axial direction of a lamp pole is formed in the outer wall of the multifunctional rod; the clamping block of the fixed anti-skid locking device is placed inthe mounting groove; and the bolt is rotated to drive the clamping block in the mounting groove to rotate and be tightly attached to and abut against the inner wall of the mounting groove, so that the clamping block, the bolt and a mounting frame are fixed at the position. According to the fixed anti-skid locking device and the multifunctional rod comprising the same, the fixed anti-skid lockingdevice can be installed at any position of a slotting section of the multifunctional rod, various devices can be additionally installed on the fixed anti-skid locking device, the structure is simple,operation is convenient, the application range is extremely wide, and great convenience can be brought to the life of people.

The invention discloses an active phased array antenna based on a honeycomb skeleton and an array forming method thereof. The number of the honeycomb and the number of the antenna units in the honeycomb are calculated according to the front scale. Generating each cellular coordinate point, and closely arranging each cellular in the cellular antenna array; Generating a random submatrix in a honeycomb, namely a submatrix circle; A subarray circle is randomly rotate and installed in each honeycomb; The pattern of cellular antenna array is calculated by substituting the average pattern of antennaelements. Repeat the above steps until the array results meet the requirements. The random distribution of antenna elements in the subarray circle and the random rotation of the subarray produce the antenna array with strong randomness of antenna element distribution, effectively destroy the superposition of the pattern scanning grating lobe in the radiation space, and weaken the scanning gratinglobe.