9results about How to "Reduced Strength Needs" patented technology

The invention provides a wet-type high-power combined laser cleaning method suitable for a heavily-corroded steel structure. S1, measuring the thickness of a rust layer on the steel surface of the steel structure; s2, liquid is sprayed to the surface of the to-be-cleaned area of the steel structure to form a liquid film, and the liquid film is used for increasing the laser absorptivity of the surface of the rust layer; s3, the to-be-cleaned area is preliminarily cleaned through continuous laser, the rust layer is made to be fluffy and stripped through the thermal expansion effect, and the thickness of the rust layer is reduced to be not larger than the target threshold value of preliminary cleaning; s4, performing fine cleaning by using pulse laser to accurately remove a residual stubborn rust layer; s5, the to-be-cleaned area is washed; the device can effectively remove a rust layer on the surface of the steel, reduce plasma and smoke dust generated in the laser cleaning process, ensure the safety and high efficiency of the cleaning process, adopt the combination of continuous laser and pulse laser, clean in stages, effectively improve the cleaning efficiency, and reduce thermal damage to the surface of the steel.

The invention relates to a high-speed rack rail injection mechanism which is applied to a rack rail vehicle walking on a rail, the rack rail vehicle comprises a rack rail wheel, a meshing rack for the rack rail wheel to walk is arranged on the rail, and the rack rail vehicle further comprises a synchronizing device and a correcting device which are arranged at the driving-in end of the meshing rack, and the correcting device is used for adjusting the tooth entering position of the rack rail wheel. The toothed rail wheel sequentially passes through the synchronizing device and the correcting device and is meshed with the meshing rack; the synchronizing device comprises a synchronizing frame arranged on the track, a passing channel for the toothed rail wheels to pass through is arranged on the synchronizing frame, and a plurality of guide wheel mounting grooves distributed in the moving direction of the toothed rail vehicle and telescopic guide wheels arranged in the guide wheel mounting grooves in a one-to-one correspondence mode are arranged on the two sides of the passing channel. The telescopic guide wheel can move in the direction perpendicular to the movement direction of the rack rail vehicle, and the telescopic guide wheel is horizontally arranged and has magnetism. Quick synchronous rotating speed of the toothed rail wheel can be achieved without adding a magnet on the toothed rail wheel, the requirement for the strength of the toothed rail wheel is effectively lowered, and the overall working stability is improved.

The invention is applicable to the technical field of seabed hydrogen storage, and provides a large-scale underwater constant-pressure hydrogen storage device which comprises a hydrogen storage tank, a hydrogen supply network and a hydrogen transportation pipeline, and the hydrogen storage tank is connected with the hydrogen supply network through the hydrogen transportation pipeline; the hydrogen storage tank comprises a rigid gas storage tank and a composite suction caisson arranged at the bottom of the rigid gas storage tank, a central pipeline connected with a hydrogen conveying pipeline is arranged in the rigid gas storage tank, and a seawater port used for seawater inflow or discharge is further formed in the bottom of the rigid gas storage tank. A seawater filter used for filtering seawater is further arranged in the seawater port, and a storage tank flexible film used for preventing compressed hydrogen from making contact with the seawater is further arranged in the rigid gas storage tank. And the underwater hydrogen storage technology is promoted to develop in a more efficient, safer and more economical direction, and contributions are made to sustainable development of the hydrogen energy industry.

The invention discloses a supporting structure for large-dip-angle lower tower column construction and a construction method thereof, and relates to the technical field of constructional engineering.The supporting structure comprises a pier base, a first support and a second support are connected to the two sides of the top of the pier base, a grommet is fixed to the interior of the first support, and a transverse pulling steel cable is connected to one side of the grommet; the middle of the top of the pier base is connected with a steel frame beam through steel frame columns. Through the arrangement of the first support, the second support, the grommet and the transverse pulling steel cable, a worker places the first support and the second support on the pier base through a tower crane and fastens the first support and the second support through bolts, and other first supports and second supports are built on the tops of the first support and the second support; the lower tower column mold is divided into a plurality of parts which are fixed to the multiple first supports and the multiple second supports correspondingly, so that a worker can build the lower tower column mold while building the first supports and the second supports through a tower crane; the structure strength is high, the outwards-inclined lower tower column mold is effectively prevented from toppling over, and cost is reduced.

The utility model relates to the technical field of parking space locks, in particular to a buried parking space lock which comprises a box body, a turning plate and a driving device. The box body is provided with a containing groove with an upward opening, one side of the turning plate is hinged into the containing groove, and the driving device is arranged in the containing groove. The driving device comprises a lead screw driving assembly, a driving connecting rod and an auxiliary tension spring, the lead screw driving assembly is arranged in the containing groove in the second horizontal direction, the two ends of the driving connecting rod are connected with the lead screw driving assembly and the turning plate correspondingly, and the two ends of the auxiliary tension spring are connected with the turning plate and the box body correspondingly; the first horizontal direction is perpendicular to the second horizontal direction; the lead screw driving device is perpendicular to the rotating direction of the turning plate, and meanwhile, the auxiliary tension spring has the counterweight effect on the turning plate, so that the requirements for the strength of the lead screw and the power consumption of the motor are reduced, the size of the driving device is reduced, and the problems that in the prior art, a parking lock driving assembly is large in size and inconvenient to use are solved. And the parking space lock is large in overall size and inconvenient to install.

The present application relates to a non-woven fabric spunlace jacquard processing equipment, which belongs to the field of non-woven fabric production. It includes a frame, on which a fiber feeding platform pre-wetting spunlace machine is provided, and three sets of spunlace machines are composed; the first and second spunlace machines are mainly used for fiber entanglement, and the third spunlace machine is used for trimming and jacquard processing of the surface of the non-woven fabric. The feeding platform spunlace machine and the jacquard station are respectively responsible for the two opposite sides of the fabric, and also include a power-assisting roller, which is rotatably connected to the frame, the rotation plane of the power-assisting roller is parallel to the moving direction of the fabric, and the peripheral surface of the power-assisting roller abuts against the fabric. The present application applies auxiliary pressure to the fabric through the power-assisting roller, thereby increasing the interaction force between the fabric and the jacquard surface, thereby increasing the fullness of the texture particles formed by the jacquard on the fabric.

The present invention relates to the technical field of demoulding of prefabricated parts, and discloses a demoulding device for prefabricated parts. The device comprises a rectangular frame consisting of a first long side, a second long side, a first short side and a second short side, a card-arranged space is built in the frame, a push-pull member is rotatably arranged outside the frame, a rotating part outside the front part of the first long side and the second long side is provided with a front wheel, and a rear wheel is arranged below the second short side. Two push-pull rods are rotatably connected at the rotation center of the front wheel, and a limiting unit is arranged above the second short side to constrain the rotation range of the push-pull rod. A brake part is arranged at the front end of the push-pull rod, and the brake part forms an angle greater than 90° with the push-pull rod, and the distance from the far end of the brake part to the rotation center exceeds the radius of the front wheel. When flipping, the design of the brake part ensures that the front wheel is off the ground, thereby improving the controllability of demoulding; and avoiding mold wear, extending the service life of the mold, reducing production costs, and improving the stability and efficiency of the demoulding process.

The invention discloses a detection system suitable for an AlphaLISA detection sample and a working method of the detection system, and relates to the technical field of AlphaLISA detection. The system comprises a laser device, a reflecting mirror, an AlphaLISA detection sample, a photomultiplier tube and a reflecting mirror position switching mechanism, and the reflecting mirror position switching mechanism is connected with the reflecting mirror. The position of the reflecting mirror is switched between a first position (A) and a second position (B); the working position (A) is used for enabling the light beam emitting end of the laser device, the reflecting surface of the reflecting mirror and the illuminated surface of the AlphaLISA detection sample to be sequentially communicated through light paths when the laser device emits a light beam, and the working position (B) is used for enabling the light beam emitting end of the laser device, the reflecting surface of the reflecting mirror and the illuminated surface of the AlphaLISA detection sample to be communicated through light paths; the non-working position is used for only enabling the light beam emergent surface of the AlphaLISA detection sample to be communicated with the light path of the light sensing surface of the photomultiplier tube after the laser stops emitting the light beam, so that the energy can be saved, and the hardware cost of the whole detection system can be reduced.

The utility model discloses a light high -strength prefabricated assembled ribbed slab type abutment, include: bottom support platform, ribbed slab is provided with two groups, two groups of ribbed slab symmetry fixed connection in the top surface of bottom support platform, platform cap shell is fixed in the top of ribbed slab, the top surface fixed connection of ribbed slab has I -steel connecting piece, and I -steel connecting piece inserts into platform cap shell, and fixedly connected with connecting reinforcing steel bar, back wall, back wall side two ends symmetry fixed connection has ear wall, back wall and ear wall integrated, and the outside of platform cap shell is fixed between back wall, wherein, after I -steel connecting piece inserts into platform cap shell, uses concrete pouring fixed. The utility model each component can be prefabricated in advance in factory. In construction site, only need to carry out simple assembling operation, has greatly shortened construction period. Compared with traditional on -the -spot pouring construction mode, need not to wait for concrete maintenance to reach design strength, has saved a lot of time.