72results about How to "Normal performance" patented technology

The invention discloses a training hurdle bracket easy to ascend and descend. The training hurdle bracket comprises bases, hurdle columns and a hurdle plate. The hurdle columns are vertically arranged on two sides of the bases, the hurdle plate is arranged on the tops of the two hurdle columns and is connected with the two hurdle columns, a seat with an opening is arranged in each base, a swing rod which upwardly extends out of the corresponding opening and can drive the corresponding hurdle column to swing towards the direction of a track when an athlete kicks the hurdle plate is arranged inside each seat, the tops of the swing rods are connected with the hurdle columns, and the bottoms of the swing rods are elastically connected with the seats in a swing manner. The training hurdle bracket has the advantages that the seats are matched with the swing rods, and trouble caused by the fact that an existing hurdle plate needs to be manually lifted up when kicked down can be prevented owing to mutual effects of reset supporting springs on two sides of the swing rods; the swing rods are arranged in the bases, so that the training hurdle bracket is compact in structure and long in service life; the training hurdle bracket is simple in structure, low in cost and suitable for popularization and application.

The invention discloses an inner support body of a safety tire, which comprises an inner ring, a metal ring and a buffer ring which are orderly arranged along the direction from a hub steel ring to an outer tire. The outer ring surface of the metal ring is provided with a buffer ring installing groove and a buffer ring limiting groove, the inner ring surface of the buffer ring is provided with a limiting rim and a limiting platform, the limiting rim is correspondingly embedded in the buffer ring installing groove on the outer ring surface of the metal ring, the lifting platform is correspondingly embedded in the buffer ring limiting groove on the outer ring surface of the metal ring, the relative sliding of the buffer ring and the metal ring is limited, and the outer ring surface of the buffer ring faces toward the inner surface of the outer tire. The inner support body of the safety tire, disclosed by the invention, can efficiently overcome and resolve suddenly increased friction caused by tire explosion so as to maintain the stable driving and the direction-controllable status of automobiles, thereby avoiding danger of sudden tire explosion of automobiles at high speed. In addition, the invention has advantages of reasonable design, production and assembly, simple installation, easy operation, reliable quality, enhanced practical applicability and potential replication of the product.

The invention discloses a dead-time compensation method of a motor excitation device. A section is arranged near a phase current zero crossing point, and corresponding compensation is directly performed beyond the section according to the current direction. Pulse width compensation is performed in the section according to a cubic curve, and in other words, due to the fact that the larger uncertainty of polarity of currents is, the closer the zero point is, the compensation effect at the moment is correspondingly weakened so that influences brought by misjudgment of the polarity of the currents of the zero crossing point can be weakened. The invention further discloses a motor excitation device for achieving the method. The motor excitation device comprises an inverter circuit and a controller. The controller comprises a phase current sampling unit, an optoelectronic coding unit, a filtering unit and a zero crossing compensation processing unit. The device can solve the problem of waveform distortion at the phase current zero crossing point, and normal performance of a motor is guaranteed.

The invention provides a high temperature resistant and aging resistant chloroprene rubber composition. The high temperature resistant and aging resistant chloroprene rubber composition comprises the following components: chloroprene rubber, zinc oxide, magnesium oxide, stearic acid, an anti-aging agent ODA, an anti-aging agent NAUGARD445, an anti-aging agent MB, paraffin, fast extruding carbon black N550, diatomaceous earth, semi-reinforcing carbon black N774, TegMer804, Paraplex A-8000, ethylene thiourea and an accelerant DM. By virtue of contrastive analysis of chloroprene rubber formula experiment, the formula performance can fully meet the standard requirement, the hot air aging resistance is prior to that of the traditional chloroprene rubber formula, and good performances can be preserved under the hot air environment of 125 DEG C. Intercooler rubber tubes are produced by using the chloroprene rubber formula so as to ensure normal use in an automobile of a turbocharging system; the performances of chloroprene rubber products are improved, so that the service life of the automobile is ensured, and the cost of the turbocharging system is reduced.

The invention discloses a height-adjustable photovoltaic component bracket, aims to solve the technical problems that the quantity of consumables for a longitudinal and transverse framework type bracket is large and the construction progress is low and belongs to the technical field of constructional engineering. The photovoltaic component bracket structure is characterized in that a U-shaped clamping piece, a plurality of photovoltaic components, a carrying plate and a support are arranged in sequence from top to bottom and are in threaded connection with one another through a long double-screw bolt; the photovoltaic components are symmetrically arranged on two sides of the long double-screw bolt respectively; the upper surfaces of the photovoltaic components are connected with the lower surface of a flanging of the U-shaped clamping piece; the lower ends of the photovoltaic components are arranged in grooves in the carrying plate; nuts are arranged on the long double-screw bolt above the U-shaped clamping piece and below the carrying plate, so that the U-shaped clamping piece, the photovoltaic components and the carrying plate are fixedly connected with one another; the lower end of the long double-screw bolt is in threaded connection with a screw hole in the top of the support; a non-threaded region for the long double-screw bolt is formed above the top of the support. The photovoltaic component bracket structure has the active effects that the photovoltaic component bracket structure is reasonable and convenient to mount, the consumables are saved, the mounting height can be adjusted, the appearance is tidy and regular, and the overall structure is safe and firm.

The invention discloses a mobile terminal testing method, device and system. The method is applied to the mobile terminal and comprises the steps of acquiring a pre-configured first connection parameter, wherein the first connection parameter comprises the name of a wireless hotspot; establishing connection with the wireless hotspot according to the first connection parameter; sending the identification information of the mobile terminal to a server based on the connection, so that the server determines a next test station according to the identification information, determines configuration parameters of a wireless router used for accessing the next test station, and sends the configuration parameters to the mobile terminal, wherein the test station comprises a shielding box, test equipment and a wireless router, and an antenna port of the wireless router is externally connected with an antenna and extends into the shielding box; and when the mobile terminal is placed in the shieldingbox of the next test station, accessing the wireless router of the next test station according to the configuration parameters, so that the test equipment in the next test station tests the mobile terminal.

A display apparatus generates a high visibility optical signal, such as an ICON, the ICON comprising a symbol, shape, or other image-like representation. The ICON becomes visible at an observation point during an illumination ON-state. The ICON may be formed as a portion of display medium, for example as a machined portion of a mirror capable of forming images of a scene by reflection in normal operation. The visibility of the ICON in the illumination OFF-state from an observation point is sufficiently low such that the normal operation of the display medium is maintained. The display apparatus may be used in a blind spot warning system for a vehicle. Visible wavelength LEDs, RGB LEDs and/or diode lasers may be utilized as an illumination source. Ultrashort laser processing or other methods for material modification may be utilized to form microscopic features which distribute incident light, increasing the visibility of the optical signal at an observation point in an ON-state, with very low visibility in the OFF-state and minimal effect on the image in the display medium in the OFF state.

The present invention discloses a raid (redundant arrays of inexpensive disks) equipment synchronization process eliminating method. First, a bit map is established which corresponds with several data blocks of the cheap raid equipment before initialization; when the cheap raid equipment is read or written in, corresponding operations is executed according to the value of the block which corresponds with the data block required by the reading and writing operations in the bit map. The present method eliminates the synchronization process when the cheap raid equipment is established. Thus the cheap raid equipment can function normally since establishment and a plurality of reading and writing operations during synchronization are eliminated, further enhancing the efficiency and protecting hardware of the cheap raid equipment. In addition, the life cycle of the equipment is clearer and puzzles about the synchronization of users are eliminated.

The invention provides a light-resistant leather greasing agent prepared from the following raw materials in parts by weight: 6-11 parts of acrylate, 3-7 parts of lauryl sodium sulfate, 4-6 parts of ammonium persulfate, 3-5 parts of polyoxyethylene, 2-6 parts of palm wax, 4-9 parts of fatty acid sorbitan, 1-5 parts of glycerinum, 2-4 parts of essence, 6-9 parts of ammonium citrate, 1-3 parts of triethanolamine, 4-6 parts of magnesium chloride, 2-7 parts of nitrocellulose, 1-3 parts of lauryl sodium carbonate, 4-7 parts of glacial acetic acid, 0.2-1 part of naphthalene, 2-5 parts of crylic acid and 2-6 parts of a light stabilizer. The light-resistant leather greasing agent has the beneficial effects of improving the mechanical property and hand feeling of leather and also maintaining normal property in the presence of light due to addition of the light stabilizer.

Belonging to the technical field of railway track circuits, the invention discloses a high-speed rail steel rail insulating elastic spacer, and aims to solve the problems of insufficient toughness and short service life of insulating elastic spacers in the prior art. The high-speed rail steel rail insulating elastic spacer comprises a bottom layer and a surface layer, the surface layer is an arc-shaped structure with a thick middle and two thin sides, the middle thickness of the elastic spacer is 10mm-15mm, both ends of the high-speed rail steel rail insulating elastic spacer are provided with a convex layer, the height of the bulge is 2-5mm, the surface layer is provided with a striated structure, which can be arbitrary shape, the bottom layer surface is provided with a concave channel structure, the striated depth is 1mm-5mm, and the bottom layer thickness is 3mm-10mm. The high-speed rail steel rail insulating elastic spacer is made of a glass fiber reinforced polyurethane material.

The embodiment of the invention discloses a mask group, an evaporation device and a method for monitoring the thicknesses of functional layers of a light-emitting device. The light-emitting device comprises the first functional layer to the Nth functional layer, and the mask group comprises a first mask to an Nth mask; the ith mask comprises an ith light-transmitting part and an ith shading part, the ith light-transmitting part comprises an ith functional layer opening and an ith functional layer monitoring opening, the ith functional layer opening is used for forming the ith functional layer through evaporation, the ith functional layer monitoring opening is used for forming an ith functional layer monitoring area through evaporation, the ith functional layer monitoring area is used for monitoring the evaporation thickness of the ith functional layer, and i is larger than or equal to 1 and smaller than or equal to N; and the vertical projections of the functional layer openings of any two masks in the mask group on the to-be-masked plane are at least partially overlapped, and the vertical projections of the functional layer monitoring openings of any two masks on the to-be-masked plane are at most partially overlapped. By adopting the mask group, film thickness calibration and troubleshooting of different stations can be realized, consumed time is short, and the working efficiency is high.

The invention discloses a brake disc polishing method. The brake disc polishing method comprises the following steps: (1) carrying out polishing pretreatment, namely firstly removing burrs existing onthe surface of a brake disc by adopting a burr removing tool before polishing; and (2) carrying out coarse grinding, namely polishing the surface of the brake disc by adopting an angle grinder provided with a 120# grinding wheel, wherein consistent polishing direction is guaranteed during polishing, and an included angle between the grinding wheel and the brake disc is 15-30 degrees. The brake disc polishing method disclosed by the invention has the advantages that the angle grinder provided with different types of grinding wheels is used for polishing the surface of the brake disc for multiple times, then the surface of the brake disc is further polished by using high-precision sand paper, polishing precision is high, the polished surface of the brake disc has excellent flatness and smoothness, and good using performance of the brake disc is guaranteed.

The invention discloses a table tennis training table. The training table comprises a table board, a stand column, an upper floor and a lower floor, wherein the stand column is fixed on the lower floor and penetrates through the upper floor to support the table board, the upper floor comprises a first upper floor and a second upper floor, the first upper floor and the second upper floor are correspondingly and two table areas of the table board are arranged in a corresponding mode, and the first upper floor and/or the second upper floor ascend or descend through a lifting device. According to the table tennis training table, the problem that different trainers need to change movements of playing table tennis according to change in height due to invariable heights of two ends of the table tennis table is solved; on the other hand, advantages of double-floors are made full use of to make the lower floor capable of collecting table tennis, thus solving the problem of difficulty in picking up table tennis.

The invention provides a gas self-closing valve, and belongs to the technical field of gas. The problems that the weight is large and the production cost is high while the integrity is guaranteed are solved. The valve comprises a valve body, a valve cover and a diaphragm, an opening is formed at the upper side of the valve body, the valve cover is connected to the upper side of the valve body, the outer edge of the diaphragm is clamped between the valve body and the valve cover, a valve rod is fixed to the center of the diaphragm, the upper end of the valve rod extends out of the valve cover and is connected with a top cap, the valve cover comprises a cover head and a body formed by stamping a metal plate, and the lower end of the body is fixed through a spin rivet after being arranged outside the upper side of the valve body in a sleeving manner. A mounting hole with two through ends is formed at the top of the body, a connecting part matched with the mounting hole is arranged at the lower end of the cover head, and the cover head and the body are riveted and fixed after being punched upwards from the lower direction of the connecting part. The valve has the advantages of good integrality, light weight, low production cost and the like.

The invention relates to the field of computer encryption technology, and provides a data encryption method of saving operation resources of a computer. The method is applied to a sending end, and includes: determining key data in original data; encrypting the key data to generate encrypted data, wherein the encrypted data carry an encryption identifier; replacing the key data in the original databy the encrypted data; determining the original data after replacing as to-be-sent data; sending the to-be-sent data to a receiving end to enable the receiving end to obtain the original data after carrying out decryption on the to-be-sent data on the basis of the encryption identifier. The method can save the operation resources of the computer.

The invention discloses an intelligent camera. One side of a take-up box is fixedly connected with a sealing cover plate, the upper end of the storage square box is fixedly connected with a micro compressed air cylinder, the upper end of the micro compressed air cylinder is communicated with a one-way inflation valve, the lower end of the micro compressed air cylinder is communicated with the upper end of the storage square box through a sweeping pipe, an electromagnetic valve is arranged in the sweeping pipe, and a pressure gauge is arranged on the micro compressed air cylinder; a concave fixed shaft is arranged in the middle of the upper guide column; the fixed shaft is sleeved with a rotary drum, a first infrared sensor and a second infrared sensor are fixedly embedded in the wall surface close to one side of the fixed bent rod, an infrared emitter is fixedly embedded in the surface, facing the first infrared sensor and the second infrared sensor, of the rotary drum, and the included angle between the first infrared sensor and the second infrared sensor is not greater than 40 degrees; and a controller is fixed on the micro compressed air cylinder, receives signals of the first infrared sensor and the second infrared sensor and controls the action of the electromagnetic valve.

The invention aims to provide a cross-linking agent for reconstructed wellbore fracturing, belonging to the technical field of petroleum and natural gas yield increase. The cross-linking agent is prepared by mutual reaction of a boron compound, polyhydric alcohol and organic ligand, wherein the boron compound is one or two selected from borax and boric acid, the polyol is one or more than one selected from ethylene glycol, glycerol, n-butyl alcohol and amyl alcohol, and the organic ligand is one or more than one selected from mannitol, sodium gluconate, lactic acid, citric acid and triethanolamine. The invention further discloses a guar gum fracturing fluid. The cross-linking agent for reconstructed wellbore fracturing can achieve delayed cross-linking, and cross-linking time is adjustable; and the use amount of guar gum is reduced, the temperature resistance and shear resistance of the guar gum fracturing fluid are improved, the residue content is reduced, and reservoir damage is reduced.

The invention discloses a clean room air purifier. The clean room air purifier comprises a bearing plate. A square groove is formed in the top of the bearing plate, and the square groove position of the bearing plate is fixedly connected with a filtering cavity. A circular through hole is formed in the top of the filtering cavity, and the circular through hole position of the filtering cavity is fixedly connected with a conveying barrel. The top of the conveying barrel is fixedly connected with a sterilization layer. The top of the sterilization layer is fixedly connected with an air outlet. Acircular through hole is formed in the inner side of the air outlet. According to the clean room air purifier disclosed in the invention, due to arrangement of rotating rods and pull rings, the two sets of the arranged rotating rods can be taken out in the later-period using process, parts can be replaced conveniently, and the arranged air outlet and the arranged sterilization layer can remove bacteria in dust during usage; and moreover, the arranged filtering cavity can be matched with an arranged air inlet barrel, air in a clean room can be filtered smoothly, and using of the device can befacilitated.