9results about How to "Small overall deformation" patented technology

The utility model discloses an ultra-thin multilayer silica gel braided tube, which relates to the technical field of silica gel braided tubes and comprises a silica gel braided tube body, a connector assembly is arranged at one end of the silica gel braided tube body, a butt joint assembly is arranged at the other end of the silica gel braided tube body, and the connector assembly is matched with the butt joint assembly. The silica gel braided tube body comprises a pipeline body, an anti-sticking layer is arranged on the inner wall of the pipeline body, and the anti-sticking layer is used for preventing adhesion between the inner wall of the silica gel braided tube body and a conveying medium; the butt joint assembly comprises a second connecting cavity tube fixedly connected to one end of the silica gel braided tube body; the connector assembly comprises a first connecting cavity tube fixedly connected to one end of the silica gel braided tube body, and a positioning rod is fixedly connected to one side of the first connecting cavity tube, so that the silica gel braided tube bodies, the connector assembly and the butt joint assembly are matched together, and the two silica gel braided tube bodies can be quickly assembled and disassembled; the working efficiency of the device is improved, and the requirements of more customers are met.

The application belongs to the technical field of photovoltaic support, and discloses a novel perforation-free support, which comprises a support body, wherein the support body comprises a connection piece in the shape of Chinese character and a wave-peak support in the shape of eight characters arranged below the connection piece; a waist-shaped hole is formed in the top of the connection piece; the wave-peak support is attached to the upper surface of the wave peak of a metal tile roof; the wave-peak support is connected to the wave-peak surface by hot air welding; the wave-peak support in the shape of eight characters can uniformly disperse and transmit the load to the wave peak of the metal tile roof; due to the strong bending deformation resistance of the wave-peak structure, the damage and large deformation of the roof tile can be effectively avoided; the perforation-free design, the hot air welding connection of the wave-peak support and the roof, the use of the same waterproof material for the skirt edge and other measures can guarantee the integrity of the waterproof layer of the roof from multiple aspects and eliminate the hidden danger of water leakage.

The application discloses a tunnel section delay blasting excavation method with grading, layering and porosity linkage, which comprises the following steps: according to the rock strength, integrity coefficient and underground water state of surrounding rock, a tunnel face is divided into several surrounding rock grading areas; an excavation section is divided into several excavation layers along the vertical direction, and the control surrounding rock grade corresponding to each excavation layer is determined; the representative porosity of the rock mass in each layer is measured, and the blast hole arrangement parameters and single-hole charge quantity of each layer are determined; according to the control surrounding rock grade and representative porosity of each excavation layer, the delay blasting time sequence of the blast holes in different positions in each layer is determined, and each blast hole is blasted according to the delay blasting time sequence; after blasting and ventilation, concrete is sprayed to close the rock surface, and a steel arch is installed. The application realizes fine design of blasting parameters and differential control of the section delay blasting time sequence, thereby effectively inhibiting the large deformation of soft rock, reducing the collapse risk, and improving the construction safety and efficiency.

The utility model discloses a kind of compression-resistant PVC table cloth, including bottom cloth layer, first PVC layer being compounded on the upper surface of bottom cloth layer, PVC compression-resistant layer being compounded on the upper surface of first PVC layer, second PVC layer being compounded on the upper surface of PVC compression-resistant layer, and surface cloth layer being compounded on the upper surface of second PVC layer;PVC compression-resistant layer includes compression-resistant layer ontology, trapezoidal convex strip being distributed equidistantly on the lower surface of compression-resistant layer ontology, lower trapezoidal embedding groove being arranged between adjacent trapezoidal convex strip, upper trapezoidal embedding groove being arranged directly above trapezoidal convex strip, and compression-resistant buffer cavity being arranged on the two sides of trapezoidal convex strip;The table cloth is compounded between layers by PVC compression-resistant layer and first PVC layer and second PVC layer, and the compression resistance, buffering performance and overall structural stability of the table cloth are significantly improved under the action of compression-resistant buffer cavity.

The invention provides a modular vegetation base material structure for subsidence area abrupt slope repair, and relates to the technical field of subsidence area abrupt slope repair, the modular vegetation base material structure comprises an abrupt slope repair unit, a protection detection unit, an elastic connection unit and a multipurpose limiting unit; the protection detection unit is mounted on the abrupt slope repair unit; the number of the elastic connecting units is four, and the four elastic connecting units are installed on the abrupt slope repairing unit. The number of the multipurpose limiting units is four, the four multipurpose limiting units are installed on the abrupt slope repairing unit, and the multipurpose limiting units are used for limiting the abrupt slope repairing unit. According to the device, a worker can conveniently connect the adjacent abrupt slope repairing frames through the circular connecting shaft, the annular positioning block a and the annular positioning block b, and rapid assembly of the adjacent abrupt slope repairing frames is achieved; the problems that the connection efficiency is affected due to the fact that adjacent vegetation base material structures are connected through bolts generally, and when the vegetation base material structures need to be subjected to angle change, workers cannot control the connection tightness conveniently are solved.

The application provides a gas radial bearing and motor, the gas radial bearing comprising: a bearing seat, a top foil, a first layer of wave foil and a second layer of wave foil; the first layer of wave foil comprises a first wave foil located at an axial first position, the second layer of wave foil comprises a second wave foil located at an axial second position and a third wave foil located at an axial third position; the first wave foil comprises first wave foil supporting ends and first wave foil flat sections alternately arranged along a circumferential direction, the second wave foil also comprises second wave foil supporting ends and second wave foil flat sections alternately arranged along the circumferential direction, and the third wave foil also comprises third wave foil supporting ends and third wave foil flat sections alternately arranged along the circumferential direction; and the arch height of the first wave foil supporting end is less than the arch height of the second wave foil supporting end, and the arch height of the first wave foil supporting end is less than the arch height of the third wave foil supporting end. According to the application, the gas film thickness at the middle position is effectively increased, the bearing carrying stiffness is improved, the bearing end leakage is reduced, and the carrying capacity is improved.

This application discloses a rectifying electrostatic precipitator, belonging to the field of dust collector technology. By sequentially setting a guide layer, a mixing layer, and a stabilizing layer in the inlet conical section of the outer shell, multiple airfoil-shaped guide elements in the guide layer evenly distribute the airflow, directing it across the entire inlet conical section of the outer shell. Multiple sets of grid holes in the mixing layer employ a staggered grid design to break up large-scale eddies in the flue gas guided by the guide layer, reducing them to smaller sizes and achieving initial velocity equilibrium. The stabilizing layer features a honeycomb open-cell design; the honeycomb structure effectively manages the airflow and stabilizes the velocity. Thus, the flue gas undergoes a three-stage process of "guidance-breakup-management" to achieve refined flow field treatment, improve velocity distribution uniformity, and reduce inlet local resistance.

This invention discloses a flexible transmission mechanism and method for a micro flapping-wing aircraft, belonging to the field of micro aircraft. The mechanism includes a crank chain, a flapping-wing chain, a constraint chain, a reduction gear set, and a frame. The flapping-wing chain consists of a moving platform and two sets of mirror-symmetrical rocker mechanisms. Each rocker mechanism includes a transmission link, a flapping rod, and a fixed rod. The transmission link is hinged to the moving platform. The flapping rod has a wing interface. When the moving platform reciprocates, it drives the flapping rod to rotate around the hinge between the flapping rod and the fixed rod through the transmission link, thus realizing the flapping action. The constraint chain includes a fixed platform and two constraint branches, forming a complete Sarrus mechanism with the moving platform, constraining its movement only along the platform's normal linear direction. One end of the crank chain is connected to the moving platform, and the other end is connected to an external motor through the reduction gear set, converting continuous rotation into reciprocating driving force. This mechanism has significant advantages such as lighter weight, smaller size, greater structural rigidity, and lower transmission loss.

The utility model belongs to vehicle skin cutting technical field, concretely relates to a vehicle skin cutting device, including work bench, push material mechanism, roof and transmission mechanism, the utility model discloses through setting up push material mechanism, places vehicle skin at work bench top surface and close second U type board, control second servo motor drives second U type board removal and promotes vehicle skin removal to cutting mechanism bottom and carries out cutting, through setting up roof, when skin finishes cutting and removes forward, roof removes upward and roof top surface with work bench top surface flush can be convenient skin continues to remove, through setting up transmission mechanism, control second servo motor drives screw rod rotation can drive first bevel gear rotation simultaneously, thereby drive roof removal during skin removal, skin edge removal to cutting groove edge and just start to remove cutting groove, the height of roof reaches highest and roof top surface with work bench top surface flush, avoid skin contact cutting groove inner wall and lead to too big deformation.