42results about How to "Reduce excessive deformation" patented technology

The invention relates to the field of image processing, in particular to a real-time splicing method for unmanned aerial vehicle aerial stereo images. According to the splicing method for the unmanned aerial vehicle aerial stereo images, an inter-frame interval of key aerial stereo images is adjusted and extracted in real time according to the overlapping ratio of adjacent to-be-spliced aerial stereo images; a transformation matrix of every two adjacent frames is obtained according to a matching relation between homonymy points of every two adjacent frames, and the serial aerial stereo images are transformed to a coordinate system of reference images; and reference frames are adjusted in real time according to set reference frame adjustment judgment conditions, so that accumulative errors generated in the process that the aerial stereo images are transformed to a coordinate system of the reference frames are dispersed to all frames of images, and the situation that serious distortion of subsequent images is caused by error accumulation is avoided.

The invention discloses a glass substrate air flotation device with a deformation detection function. The glass substrate air flotation device comprises a transporting platform, a fixed platform and a base. The fixed platform is connected with the base through supporting columns. Driving devices used for driving a glass substrate to move are arranged on the two sides of the transporting platform. The transporting platform is provided with a plurality of conveying air holes arranged evenly. A sintered metal porous material is embedded in the top end of each conveying air hole. The bottom of each conveying air hole is connected with an air conveying pipe. The air conveying pipes are connected with a pressure reduction valve through a flowmeter. The pressure reduction valve is connected with an air source through a hose. At least two small holes are formed in the periphery of each conveying air hole of the transporting platform, the bottom of each small hole is connected with a pressure sensor through an air pipe, and the pressure sensors and the signal output end of the flowmeter are connected with an input conversion module. The glass substrate air flotation device with the deformation detection function has the advantages of being clean, free of pollution, heating and magnetism generation and the like, and a pneumatic system is easy to maintain and simple in structure.

The invention discloses a key structure. The key structure comprises a bottom plate, an elastomer and a key cap; the bottom board has a concave space; the key cap consists of a key top and a key skirt connected with the periphery of the key top; the key cap has a combination part which protrudes from the lower surface of the key top to the bottom plate, and a limiting part; the elastomer has a projection range on the lower surface of the key top before the key cap is pressed down; the limiting part is arranged corresponding to the elastomer, and a preset distance is kept between the limiting part and the projection range; when the key cap is pressed to move towards the bottom plate, the lower surface of the key top presses the elastomer in a prop-against manner to enable the elastomer to be elastically deformed; the limiting part presses the bottom plate in a prop-against manner to define the lowest position of the key cap; and when the key cap is in the lowest position, the deformed elastomer does not exceed the preset distance and the deformed elastomer does not extend to the lower side of the limiting part. According to the key structure, the partial rigidity of the key cap can be reinforced and the pressing travel can be defined, so as to effectively lower excessive elastomer deformation caused by key cap deformation and to further reduce damage probability of the elastomer.

The invention relates to a side slope anchoring structure and a frame beam supporting construction method using the same. The side slope anchoring structure comprises an anchoring steel pipe and a grouting pipe arranged in the anchoring steel pipe in a penetrating mode, the grouting pipe is fixedly sleeved with two grout stopping seats, a grout outlet hole located between the two grout stopping seats is formed in the grouting pipe, a grout flowing gap is formed between the outer walls of the grout stopping seats and the inner wall of the anchoring steel pipe, plugging pieces slide in the groutstopping seats, the grouting pipe is provided with driving assemblies used for driving the plugging pieces to slide, and the plugging pieces are provided with sealing pieces. According to the side slope anchoring structure and the frame beam supporting construction method using the same, by arranging the grouting pipe, multi-section type splitting grouting can be achieved, a side slope soil bodyforms a solid body, the sliding resistance of the side slope soil body is improved, moreover, a splitting grouting body can improve the side frictional resistance of the anchoring steel pipe, and thenthe anchoring force of the anchoring steel pipe is improved; and due to the characteristic that the plugging pieces can be controlled in a sliding mode, the slurry flowing gap is controllable, the splitting grouting pressure and effect can be ensured, and the frictional resistance generated when the grouting pipe moves relative to the anchoring steel pipe and the frictional loss of the sealing pieces can be reduced.

The invention discloses an intelligent testing and evaluating method for properties of flowing waste soil in a tunneling soil cabin. The method comprises the following steps: setting an auxiliary device inside a tunneling soil cabin; sensing impedance torque variation rules of the auxiliary device under different flowing waste soil properties, and establishing a relationship of the torque variation rules and the flowing waste soil properties; sensing impedance torque of the auxiliary device when carrying out practical testing and evaluation; confirming the properties of the flowing waste soilinside the tunneling soil cabin according to torque amplitude and variation intensification rules, if the torque amplitude and the variation intensification are both relatively small, judging that themoving waste soil is at an ideal flowing molding state. An intelligent testing and evaluating device for the properties of the flowing waste soil in the tunneling soil cabin comprises four parts, namely a shearing plate mechanical part, a protection cover part, a shearing torque testing part, a driving part and the like. By adopting the method and the device, properties of waste soil in a key area of a soil cabin can be tested in real time, waste soil with adverse properties can be improved through waste soil improvement holes nearby, then an ideal waste soil state can be maintained inside the soil cabin in real time, and dynamic balance of a tunneling excavation face can be ensured ultimately.

The invention relates to a clamp for a slow wire feeding machine tool. The clamp comprises a fixed jaw and a movable jaw, the fixed jaw comprises a supporting plate for supporting a workpiece, a first clamping arm arranged on the supporting plate and a fixed arm, the fixed arm and the first clamping arm are integrally arranged, a guide groove is formed in the fixed arm, a through hole is formed in the rear side of the guide groove, and a bolt is arranged in the through hole. The movable jaw comprises a second clamping arm and a sliding arm connected with the second clamping arm, the sliding arm is inserted in the guide groove, and is connected with the bolt in the through hole, the sliding arm slides in the guide groove by rotating the bolt, and the second clamping arm is close to the first clamping arm and clamps the workpiece. Compared with the prior art, the clamp has the advantages of being simple in structure, convenient to use, wide in use range, small in damage to the surface of the workpiece and the like.

A capacitive transducer includes a substrate having an opening in a surface thereof, a back plate facing the opening in the substrate, a vibration electrode film facing the back plate across a space, the vibration electrode film being deformable to have a deformation converted into a change in capacitance between the vibration electrode film and the back plate, the vibration electrode film having a through-hole as a pressure relief hole, and a protrusion integral with and formed from the same member as the back plate, the protrusion being placeable in the pressure relief hole before the vibration electrode film deforms. The pressure relief hole and the protrusion have a gap therebetween defining an airflow channel as a pressure relief channel. The protrusion has a through-hole extending from a distal portion of the protrusion to a portion of the back plate opposite to the protrusion.

The invention relates to the technical field of high-voltage line cleaning, and discloses a portable deicer for a high-voltage line. The portable deicer comprises a cylindrical chassis, a through groove is formed in the middle of the cylindrical chassis, a remote control system is fixedly connected to the bottom of the left side of the cylindrical chassis, an upper left end cover is hinged to theleft end of the cylindrical chassis through a hinge. an oil storage tank is fixedly connected to one side of the top end of the upper left end cover, an oil coating sponge is movably connected betweenthe upper end cover and the cylindrical base plate in a sleeving mode, a deicing cylinder is fixedly connected to the right side of the oil coating sponge, the oil coating sponge and the deicing cylinder are each divided into an upper part and a lower part, a limiting groove is formed in the joint of the oil coating sponge and the deicing cylinder, and the middle part of the cylindrical chassis is hinged with a middle upper end cover through a hinge. Through the design of the stranding cage type of the deicing part, accumulated snow and removed broken ice on the high-voltage line can be led to a snow conveying channel and cover the clamping position of the moving wheel and the high-voltage line to serve as a friction medium, and therefore the climbing capacity of the device is improved.

The invention discloses an expandable packer and a setting method thereof, and belongs to the technical field of oil exploration. The expandable packer comprises an upper joint, an upper balance hydraulic cylinder, an expandable rubber sleeve, a lower balance hydraulic cylinder and a lower joint which are sequentially connected with the outer portion of a center pipe in a sleeving manner from top to bottom. The upper joint, the expandable rubber sleeve and the lower joint are fixedly connected with the center pipe. The upper joint is fixedly connected with the upper balance hydraulic cylinder. The upper balance hydraulic cylinder and the lower balance hydraulic cylinder are movably connected with the center pipe. The upper balance hydraulic cylinder comprises an upper cylinder jacket and an upper rubber sleeve set, and the upper cylinder jacket is fixedly connected with the upper joint. The lower balance hydraulic cylinder comprises a lower rubber sleeve set and a lower cylinder jacket. Liquid inlet holes are formed in the faces, in sleeved connection with the upper balance hydraulic cylinder, the expandable rubber sleeve and the lower balance hydraulic cylinder, of the center pipe respectively, and penetrate the pipe wall of the center pipe. The problems that in the hydraulic fracturing process, setting of a packer is likely to fail, and economic losses are caused can be solved, and the effect of avoiding economic losses is achieved. The setting method is used for setting of the packer.

A capacitive transducer includes a substrate having an opening in a surface thereof, a back plate facing the opening in the substrate, a vibration electrode film facing the back plate across a space, the vibration electrode film being deformable to have a deformation converted into a change in capacitance between the vibration electrode film and the back plate, the vibration electrode film having a through-hole as a pressure relief hole, and a protrusion integral with and formed from the same member as the back plate, the protrusion being placeable in the pressure relief hole before the vibration electrode film deforms. The protrusion and the pressure relief hole have a gap therebetween defining an airflow channel as a pressure relief channel.

The invention provides a bending-adjustable left atrial appendage occluder conveying system and a using method, and the bending-adjustable left atrial appendage occluder conveying system comprises a traction device which adjusts the tightening and loosening of a first traction wire and a second traction wire through a control mechanism, a conveying sheathing canal which is in a linear state in a natural state, a pre-shaping piece which can enable the first bending adjusting part of a first bending adjusting pipe to be bent to a pre-shaping state, a first sliding block which is arranged on the other side, opposite to the pre-shaping piece, in the first bending adjusting pipe, is connected with the first traction wire and can slide relative to the pre-shaping piece under the action of the first traction wire, and a micro-motion adjusting piece which is arranged in a second bending adjusting pipe, connected with the second traction wire and used for finely adjusting the position, close to the far end, of a far-end pipe. According to the bending-adjustable left atrial appendage occluder conveying system, an operator can visually and reliably conduct bending adjustment operation conveniently, and the purpose that the far-end section of the conveying sheathing canal is coaxial with the central axis of a left atrial appendage is achieved conveniently and rapidly.

The invention relates to a sponge community wall seepage well system, and relates to the technical field of seepage well systems, the sponge community wall seepage well system comprises a water seepage system arranged on the ground and a supporting device arranged around the periphery of the water seepage system, and the supporting device comprises two symmetrical supporting mechanisms and a locking mechanism used for connecting the two supporting mechanisms; each supporting mechanism comprises a containing plate, a bottom supporting plate and a positioning piece, the containing plates are arranged on the bottom supporting plates, and the positioning pieces are used for fixing the bottom supporting plates to the ground; the side walls, close to each other, of the two containing plates abut against each other, the locking mechanism is used for connecting the two abutting containing plates, and the two abutting containing plates are used for supporting a water seepage system. The seepage well system has the effect of improving the application stability of the seepage well system.

The invention discloses an environment-friendly dome for buildings. The environment-friendly dome comprises a dome framework and several pieces of glass installed on the dome framework, and the dome framework is composed of several longitudinal beams and transverse beams welded together. The environment-friendly dome is characterized in that the bottom of the dome framework is connected with a floor base plate through a lower base, the longitudinal beams are provided with at least one hollow breathable pedaling platform and exhaust holes communicated with the hollow breathable pedaling platforms, and an exhaust port is formed in the end, close to the lower base, of each hollow breathable pedaling platform. According to the environment-friendly dome for the buildings, through vent holes, turbid hot air in a room is introduced into an air inlet chamber, then introduced into an exhaust chamber through inner vent holes, and then exhausted by the exhaust holes via the exhaust ports, and thephenomenon that the turbid hot air is centralized in the dome and cannot be dissipated out is avoided; meanwhile, the use quantity of inner air conditioners can be reduced, the energy-saving effect is achieved, and the ventilation problem in a densely inhabited district is effectively solved at the same time.

The invention provides a cast iron eccentric bidirectional sealing butterfly valve which is characterized in that a sealing pair consists of an independent floating valve seat and an O-shaped ring on the floating valve seat; and the side face and bottom of the valve seat are provided with O-shaped seal rings made of a plastic or rubber material. The invention has the advantages that the cast iron eccentric bidirectional sealing butterfly valve can bear the pressure (within 1.25 times of nominal pressure) applied from any side by media, and the purpose of preventing the backflow of media can be achieved by only installing one cast iron eccentric bidirectional pressure butterfly valve but not adding a check valve or other bidirectional pressure valves additionally; and at the same time, because the welding property of the floating valve seat is excellent, different materials can be welded according to different media, thus the butterfly valve provided by the invention is better in abrasion resistance and corrosion resistance, and the service life of the valve can be prolonged.

The invention discloses an environment-friendly coating printing machine. The environment-friendly coating printing machine structurally comprises a shell, an upper inspection opening, a deviation rectifying device, a printing platform and a control panel. The control panel and the upper inspection opening are installed on the outer surface of the shell. The control panel cooperates with the deviation rectifying device in the shell in an electric connection mode. The deviation rectifying device is arranged on the two sides of the printing platform. Ground gripping structures and a positioningdevice are arranged on an assistance device; by means of cooperation of supporting air bags at the bottoms of the ground gripping structures and the positioning device, when deviation of cloth occurs,the supporting air bags make contact with carrier roller bearing bodies, the carrier roller bearing bodies horizontally move to extrude the positioning device, the supporting air bags outwards extendthe ground gripping structures penetrating through the inner portions of the supporting air bags after being extruded by the positioning device, and therefore cloth is prevented from deviating, and the deviation rectifying efficiency is higher.

The invention relates to a drainage pipeline hot melting installation system, and relates to the field of pipeline installation engineering, the drainage pipeline hot melting installation system comprises two heating rings with inner cavities provided with channels, the two heating rings are coaxially arranged, the inner sides of the heating rings are provided with a plurality of heating holes arranged at intervals, and the heating holes communicate with the inner cavities of the heating rings; a communicating pipe used for feeding combustible gas into the inner cavities of the heating rings is connected between the two heating rings, the communicating pipe is communicated with the inner cavities of the two heating rings, and the distance between the two heating rings along the axes of the two heating rings is adjustable. The hot melting connection structure has the effect of facilitating hot melting connection between the plastic polyethylene pipeline and the iron pipe.

The invention discloses a load-resisting, anti-skidding and water-accumulation-preventing scaffold plate. The load-resisting, anti-skidding and water-accumulation-preventing scaffold plate comprises a scaffold plate body, an end face reinforcing sealing plate, a middle reinforcing supporting plate and an anti-skidding groove. The end face reinforcing sealing plate is located in the opening of the scaffold plate body, the middle reinforcing supporting plate is located in the middle of the scaffold plate body, the lower end of the scaffold plate body is provided with the anti-skidding groove, and the scaffold plate body is provided with longitudinal reinforcing ribs. The load-resisting, anti-skidding and water-accumulation-preventing scaffold plate has good rigidity and a superior anti-skidding effect and is reasonable in structure and not prone to bending and fracturing.