42results about How to "Avoid destructive phenomena" patented technology

The invention provides a hydraulic safety device for a two-roller calender, which is characterized in that the hydraulic safety device comprises a hydraulic cylinder (1), a sensor (2), a hydraulic system (8) and a control system (9), wherein, the hydraulic cylinder (1) is arranged below a roller bearing (10); the sensor (2) is arranged below the hydraulic cylinder (1); the sensor (2), the controlsystem (9), the hydraulic system (8) and the hydraulic cylinder (1) are connected sequentially. The invention has simple structure, and can detect the horizontal pressure change of the roller; when the horizontal pressure exceeds a preset value, a roller automatically enlarges roller spacing through the hydraulic system, avoiding the occurrence of roller damage; when the horizontal pressure dropsto a certain value, the roller automatically resets. The whole process is completed in an instant and the production line process is not affected; on the other hand, piling glue amount can be controlled by horizontal pressure detection.

A device for improving the stability of floating water seal and negative pressure sinking of a cylindrical foundation, which is used for auxiliary construction of offshore wind power infrastructure, including a cylindrical foundation, a roof anchor block, an anchor rope, a plumb weight, and a water seepage barrier The central part of the cylindrical foundation is a circular silo body, and a number of sub-silo boards are radially distributed around the periphery to form a trapezoidal silo body. The top cover anchoring block is located on the lower side of the top cover of the cylindrical foundation. The lower part is connected with an anchor rope, and the lower end of the anchor rope is connected Plumb weight, with a water seepage barrier attached to the plumb weight. The invention effectively enhances the water resistance of the cylindrical foundation under the swaying of wind and waves, forces the gas in the cylindrical foundation to be unable to exchange with the external water rapidly when the cylindrical foundation is swayed, ensures the air tightness during the floating process of the cylindrical foundation, and enhances the floatation. The stability of the water seal ensures the safety performance of the cylindrical foundation during the floating process; in addition, the device has a simple structure, is very convenient to design, manufacture and install, and has low cost and strong practicability.

An electric heating exhaust gas treatment device with a double-layer casing structure is arranged in the exhaust system of an internal combustion engine, and includes an inner layer casing, an outer layer casing and a metal catalyst carrier. The inner layer casing is provided with a metal catalyst carrier, and at least one The heating honeycomb element is located in the inner sleeve and arranged above the metal catalyst carrier. There is an insulating gap between the heating honeycomb element and the metal catalyst carrier. The upper end of the inner sleeve is located on the inner side of the outer sleeve and a The annular U-shaped processing groove separates the upper end of the inner casing into a circular arc, one end of the heating honeycomb element is electrically connected to the circular arc, and a conductive element is electrically connected to the circular arc after penetrating through the outer sleeve. The outer wall of the arc ring; thus, the present invention can effectively reduce or avoid the adverse effects of accelerated oxidation and corrosion in the contact area between the end of the electric conductor and the honeycomb core body, and especially avoid the high torque generated during the actual assembly process so that Damage caused by electrically sensitive parts.

The invention discloses a wood frame shear wall which comprises a wood frame column, a wood frame beam, a wood-base structural slab, a top beam plate, a bottom beam plate, studs and a gypsum board, wherein the wood-base structural slab is arranged in the middle of the wall; the plurality of studs are respectively arranged between the top beam plate and the bottom beam plate, thus forming stud frames; the stud frames are symmetrically arranged at the two sides of the wood-base structural slab; the peripheries of the stud frames are connected with the wood frame beam and the wood frame column through bolts; and the gypsum board is arranged at the outer sides of the stud frames, and the edge of the gypsum board is parallel and level to the outer sides of the stud frames. According to the wood frame shear wall, a shingle and the studs are integrated into a whole. The wood frame shear wall is large in lateral rigidity resistance and good in ductility, has high lateral resistance and energy-dissipating capacity, can favorably make breakthrough in height and span of a timber architecture. The wood frame shear wall is wide in application prospect, can be applied to multi-floor and medium and high-rise wood frame structure buildings, and remarkably improves the lateral resistance of the whole structure.

The invention discloses straightening equipment for green brick walls, which comprises slide rails, slide rail pulleys, limit rings, bases, base pulleys, base hydraulic cylinders, intermediate support plates, motors, motor gears, intermediate rotating gears, rotating gears, and rotating bearings , rotating support plate, rotating support plate hydraulic cylinder, support plate, bearing support, bearing seat, bearing, first hydraulic push rod and push plate, the wall righting equipment can be effectively adjusted through the hydraulic cylinder, rotating support plate and push plate It is necessary to repair this kind of wall protrusion, and then carry out the overall wall righting. The invention also provides a construction method for the righting equipment of the blue brick wall, through the rotation of the rotating support plate, the lifting and lowering of the hydraulic cylinder, the rotation of the push plate to adjust the contact angle with the raised wall, keep it parallel to the wall, and pass By gradually adjusting the angle of the limit rod, the angle of each straightening process can be adjusted, so as to realize a gradual and adjustable wall righting process.

The present invention relates to a supporting and protecting structure for an underground laneway in hanging and assembling way. the supporting and protecting structure is characterized in that a plurality of supporting and protecting plates are assembled into a supporting and protecting layer; each supporting and protecting plate is hung over the wall rock by a roof bolt; a flexible gap is kept between two adjacent plates; the width of the flexible gap is determined by the size of the laneway; the bigger the laneway deforms, the wider the flexible gap is; a flexible sealing strip is pressed into the flexible gap; the present invention has the beneficial effects that every supporting and protecting plate is hung by the roof bolt, which takes fully advantages of the supporting and protecting of the roof bolt that the wall rock is fixed together by the roof bolt and the supporting and protecting plates are hung over the wall rock by the roof bolt, thereby playing in a hanging role; the plate structure is constructed easier than the one-whole structure; the flexible gap is kept between two adjacent plates, and during the deforming of the wall rock, the gaps between the plates are contracted to release a part of the ground pressure, which changes the rigid supporting and protecting into the flexible supporting and protecting, thereby conforming to the modern flexible supporting and protecting principle; due to the release of the ground pressure, the supporting and protecting pressure is reduced, thereby avoiding the damage of the supporting and protecting layer.