581results about How to "Avoid deformation damage" patented technology

The invention relates to a display panel which comprises a flexible screen and a supporting layer. The flexible screen comprises a display area, a bending area and an extending area in sequential arrangement, a first surface and a second surface are in opposite arrangement, the flexible screen is bent towards the first surface, the display area and the extending area are in parallel arrangement, the supporting layer is fitted to the first surface, and hardness of the supporting layer positioned in the bending area is smaller than that of the supporting layer positioned in the display area andthe extending area. Bending stress of the flexible screen positioned in the bending area can be reduced, so that damage to the flexible screen due to deformation can be avoided; the hardness of the supporting layer in the display area and the extending area is high, and strength of the flexible screen can be ensured, so that service life of the flexible screen can be prolonged.

The invention relates to the field of manufacturing of building prefabricated pieces and provides a channel plate mold. The channel plate mold comprises a stress system and a forming system. The forming system is placed in the stress system. A prestressed steel bar penetrates through the forming system to be connected to the stress system. The forming system is separated from the stress system. The acting force generated through contraction after the prestressed steel bar is tensioned is conducted to the stress system. The channel plate mold has the effects that the number of times of mold transferring is increased, the service life is prolonged, and the overall weight of the mold is reduced. The invention further provides a method for manufacturing a channel plate by means of the channel plate mold. The method for manufacturing the channel plate by means of the channel plate mold comprises the steps that S1, an internal mold underframe is provided; S2, a core mold body is provided and fixed on the internal mold underframe, the core mold body comprises a movable part and a fixed part, and the movable part of the core mold body is fixed through a limiting bolt; and S3, a pair of end mold bodies and a pair of side mold bodies are provided, the end mold bodies and the side mold bodies are all fixed on the internal mold underframe, and a channel storage space used for storing concrete can be formed by closing the pair of end mold bodies and the pair of side mold bodies.

A backlight drive circuit comprises an LED light bar, an LED driving chip used for outputting a backlight current to drive the LED light bar; a temperature detection circuit used for detecting the temperature of the LED light bar and outputting a sampling voltage; a comparison circuit used for generating a control signal according to the sampling voltage and a reference voltage; a reference current generating circuit used for adjusting a reference cureent of the LED driving chip according to the control signal, wherein the LED driving chip is also used for adjusting the backlight current of the LED light bar according to the reference current. According to the backlight drive circuit provided by the present invention, by using a thermistor temperature detection circuit arranged on the LED light bar to output the sampling voltage, controlling the reference current of the LED driving chip according to the sampling voltage and the reference voltage, and further regulating and controlling an output current of the LED driving chip according to the current temperature, the LED light bar keeps working with the backlight current matching the current temperature during the temperature change process.

The invention discloses a drawing type steel inner die. The drawing type steel inner die comprises a first die plate and a second die plate. The first die plate comprises a first component and a second component which are symmetrically arranged in the vertical direction and are hinged to each other. The second die plate comprises a third component and a fourth component which are symmetrically arranged in the vertical direction and are hinged to each other. The four components jointly form a hollow cylindrical structure. The first die plate and the second die plate are each provided with a drawing unit. Each drawing unit comprises a main shaft pull rod and at least one steel wire rope, wherein the middle portion of each steel wire rope is fixedly connected with the main shaft pull rod, and the two ends of the steel wire rope are fixedly connected with the upper component and the lower component. The invention further discloses a construction method used for a prefabricated hollow slab girder and achieved through the drawing type steel inner die. According to the technical scheme, the drawing units which are composed of the steel wire ropes and the main shaft pull rods are adopted to carry out drawing die dismounting, connection can be achieved without hinges, the risks that the hinges and the components are damaged in the drawing process of the steel inner die are eradicated, the clamping problem is solved, the maintaining cost is low, repeated using is facilitated, and the production efficiency is improved.

The invention discloses a method for removing a steel tube blank tip. The method is characterized in that the steel tube tip is cut in a water cutting manner, and burrs generated on the cut part are washed away through the deformation dispersity of cutting water flow itself during water cutting. The method has the beneficial effects that implementation is easy, the burrs on a notch can be well removed, the cutting quality is improved, the cutting efficiency is improved, pollution is reduced, and cost is low.

The invention discloses a micro motor magnetic steel assembly device which comprises a working platform and two guide rails on the working platform. A movable supporting base is arranged on the two guide rails. A third air cylinder is arranged on the movable supporting base. An installation arm parallel to the two guide rails is fixed to a piston rod of the third air cylinder. The two ends of the installation arm are provided with a first air cylinder and a second air cylinder. A first magnetic steel attraction device is arranged on a piston rod of the first air cylinder. A second magnetic steel attraction device is arranged on a piston rod of the second air cylinder. A first magnetic steel positioning base, a second magnetic steel positioning base and a shell positioning base are sequentially arranged on the working platform along the straight line. The distance between every two adjacent positioning bases is equal to the distance between the first magnetic steel attraction device and the second magnetic steel attraction device. A fourth air cylinder is installed on the working platform through a support. A piston rod of the fourth air cylinder extends downwards. A magnetizing apparatus corresponding to the second magnetic steel positioning base is arranged on the piston rod of the fourth air cylinder. According to the micro motor magnetic steel assembly device, the labor intensity of workers is reduced, and production efficiency is improved.

The invention provides an ecological slope protection structure and protection system as well as an ecological slope construction method, and belongs to the field of slope protection. A locking anchorcable section is arranged under the potential sliding surface of a slope; the stability of a rock-soil body under the potential sliding surface is high; through the arrangement of the locking anchorcable section under the potential sliding surface, the locking anchor cable section can be protected against failure when separated from the deformed slope; one end of a free anchor cable section is connected with the locking anchor cable section; and the other end of the free anchor cable is fixed to an anchoring assembly. When the slope is deformed, the anchoring assembly and the anchor cable assembly are combined to form pull force to the slope, so that the slope can be prevented from being further deformed and destroyed; an accommodating trough used for accommodating a soil layer is encircled by the anchoring assembly and the slope, and the soil layer is capable of proving a living environment for plants; and especially for a poor geological section, root systems of the plants can go deep into gaps among rock bodies, the rock bodies can be closely connected, the integrality of the poor geological section can be improved, and then the long-term protection of a slope surface can be achieved.

The invention provides a retractable trapezoid support with cushion blocks. The retractable trapezoid support consists of a top beam and two combined stand columns, wherein each of the combined stand columns is formed by fastening a column head, a column body and a longitudinal retractable body which is arranged between the column head and the column body by bolts which pass through screw holes of the column head and the column body through a clamping plate on which a strip groove is formed; two ends of the top beam are in curved surface connection with the combined stand columns through sliding cushion blocks; and a transverse retractable body is arranged between the top beam and each sliding cushion block. The retractable trapezoid support has high bidirectional contractibility and can adapt to the change of ground pressure of a laneway better. Through the retractable trapezoid support, a fabricated reinforced concrete trapezoid support which is out of use due to lack of high contractibility can be used again, the support effect of an I-shaped steel support can be further improved, the using amount of the I-shaped steel support can be reduced, the quality of the laneway support can be improved, the support cost can be reduced, steel consumption can be reduced, wood is not needed, and ecological environment preservation, energy conservation and emission reduction are facilitated.

The invention discloses an unmanned aerial vehicle with telescopic vehicle arms. The unmanned aerial vehicle comprises a vehicle body, a vehicle arm, a guide groove and a rotor wing assembly, whereinthe vehicle arm comprises a first arm rod and a second arm rod, one end of the first arm rod is connected with the vehicle body, a movable fastening shaft is arranged on the first arm rod, a flexiblepad is arranged at one end of the fastening shaft, and a limiting protrusion is arranged on the inner circumferential wall of the first arm rod; the guide groove extending in the axial direction of the second arm rod and is formed in the peripheral wall of the second arm rod, a plurality of limiting grooves are formed in the groove bottom wall of the guide groove and distributed in the length direction of the guide groove at intervals, the second arm rod slidably extends into the first arm rod, and the limiting protrusions are located in the guide groove; the second arm rod slides to enable the limiting protrusion to be matched with one limiting groove, and the fastening shaft moves to enable the flexible pad to abut against the second arm rod to fix the second arm rod. and the rotor wingassembly is arranged at the end, away from the first arm rod, of the second arm rod, and the device can achieve extension and retraction of the vehicle arm.

The invention provides a hoisting turnover tool and a hoisting turnover method for a large line type ship body section. The hoisting turnover tool comprises a jig frame template, a horizontal frame plate and a vertical frame plate, and the upper end of the vertical frame plate is connected with the other end of the horizontal frame plate; and a first lifting lug is arranged at the joint of the jigframe template and the horizontal frame plate, a second lifting lug is arranged at the joint of the vertical frame plate and the horizontal frame plate, and a third lifting lug is arranged at the joint of the vertical frame plate and the jig frame template. The hoisting turnover tool is arranged on the large line ship body section, lifting hooks are connected with the lifting lugs on the hoistingturnover tool, hoisting turnover operation is conducted on the large line ship body section, the large line ship body section which is turned over to be in an inverted state is directly placed on theground, the jig frame does not need to be rearranged, and the site and equipment are saved.

The invention discloses a tight braking device for a numeric control rotary table. The tight braking device comprises a base, an oil cylinder, an oil separator and a first annular friction plate, wherein the first annular friction plate is fixedly arranged on a rotary disk; a piston hole is formed in the base; a piston of the oil cylinder extends into the piston hole; the oil cylinder is connected with the oil separator; the first annular friction plate is positioned between the base and the oil cylinder; and a second annular friction plate is arranged between the first annular friction plate and the oil cylinder and is fixedly arranged on the base. The tight braking device has the advantages that the oil cylinder directly acts on the second annular friction plate; the second annular friction plate is fixed on the base; the base is immovable and constraints the circumferential direction of the second annular friction plate; during tight braking, the oil cylinder and the second annular friction plate are positioned in a communicated static state; and when the first annular friction plate which is fixed with the rotary disk together is simultaneously subjected to action forces of two friction surfaces, a braking force is greater and the tight braking reliability is high. Therefore, the rigidity of the numerical control rotary table is improved and the guarantee for machining workpieces with high precision by the machine tool is provided.

The invention belongs to the technical field of robot end effectors, and particularly relates to a floating type self-centering assembling gripper of a robot. The floating type self-centering assembling gripper comprises a floating component, a connecting flange, guide rods, first springs, a clamping component and a positioning and clamping component. According to the floating type self-centeringassembling gripper, the positioning and clamping component of the assembling gripper is used for positioning and clamping cylinder sleeve parts, the clamping component of the assembling gripper is used for positioning and clamping rotary shaft parts, and then the position precision of the rotary shaft part and the cylinder sleeve parts before assembling is guaranteed; and then the situation that due to positional deviations, the cylinder sleeve parts and the rotary shaft parts collide in the assembling process is avoided, the situation that the inner walls of the cylinder sleeve parts and theouter cylindrical faces of the rotary shaft parts are scratched is avoided, and then the assembling precision between the rotary shaft parts and the cylinder sleeve parts is guaranteed. By arranging the floating component, the requirement for the repeating precision of the robot is reduced when the rotary shaft parts are assembled in the cylinder sleeve parts by the assembling gripper.

The invention discloses a road surface deformation monitoring method, which belongs to the technical field of intelligent transportation. The road surface deformation monitoring method is characterized by comprising the following steps of: a, determining a reference value according to an initial condition, and performing information interaction between monitoring devices and a server through a relay and a gateway; B, detecting pavement settlement and deformation through angle changes of attitude sensors in the monitoring devices; C, enabling the gateway to obtain a network relation mapping graph from the server, issuing the network relation mapping graph step by step according to a jurisdiction relation, completing relation mapping, and uploading posture data collected in real time to the server through the relay and the gateway through a Bluetooth network by utilizing the monitoring devices; and D, comparing attitude data acquired by the plurality of groups of monitoring devices with a reference value and historical data respectively by using the server, and acquiring a damage type and a damage range of the road section through model establishment and data analysis. According to the road surface deformation monitoring method, monitoring data can be uploaded in real time, pavement state monitoring and early warning are carried out through modeling and data analysis, and pavement settlement and displacement conditions are effectively monitored.

A backlight component comprises a back plate, a diffusion plate, a supporting piece and a plurality of lighting tubes; wherein the diffusion plate is equipped on the back plate; the supporting piece is equipped between the back plate and the diffusion plate; furthermore, the supporting piece comprises a base and a fixing piece; the fixing piece has a supporting part connected against the diffusion plate, which can prevents the diffusion plate from bending and deforming; a plurality of lighting tubes are equipped between the base and the fixing piece and are taken as the light source of the backlight component.

The invention discloses an automobile bumper device which comprises a bumper shell, a damping spring and a spring fixing seat. The bumper shell is connected with a frame beam through an energy absorption box. A U-shaped energy absorption groove plate is longitudinally arranged on the outer side face of the bumper shell. A rubber energy absorption strip is arranged in the U-shaped energy absorption groove plate which is connected with the bumper shell through bolts. By means of the U-shaped energy absorption groove plate and the rubber energy absorption strip, the damping and energy absorption effects of a bumper can be enhanced, the passive collision protection capacity of the bumper is improved, the buffering and damping protection effects can be achieved through deformation of the U-shaped energy absorption groove plate and the rubber energy absorption strip during slight collision, the bumper shell can be prevented from deformation and damage, the U-shaped energy absorption groove plate can be detached and maintained, and the maintenance cost is low; meanwhile, the automobile bumper device comprises multi-stage composite damping parts such as the U-shaped energy absorption groove plate, the bumper shell and the energy absorption box, the damping and energy absorption capacity is high, and the life safety of personnel in an automobile can be better protected.

The invention discloses a tunnel inverted arch structure suitable for floor heave deformation control and method. The structure comprises an inverted arch main body arranged at the bottom of a tunnel,wherein an inverted arch filling part is arranged above the inverted arch main body, an outer filling layer is arranged below the inverted arch main body, the inverted arch main body is fixedly provided with a plurality of energy absorbing anchor rods, and the energy absorbing anchor rods extend downwards from the inverted arch main body to penetrate through the outer filling layer. The invertedarch structure can improve the ability of the tunnel inverted arch structure to resist deformation, reduce occurrence of the floating problem of an inverted arch, and ensure the normal operation of the tunnel and the safe operation of vehicles.

The invention provides a prestressed concrete high-strength anti-corrosion pipe pile. The anti-corrosion pipe pile comprises a pile body and end plates, the two end plates are symmetrically arranged at the two ends of the pile body, a reinforcement cage is arranged in the pile body, and each end plate comprises a connecting plate and a reinforcing pipe sleeve. The end plates which are designed ina split assembly mode are adopted, so that the production and machining process is simpler and more convenient. The reinforcing pipe sleeve welded in the groove can prevent the connecting plate from being deformed and damaged in the pile sinking process through the limiting and supporting effects of the reinforcing pipe sleeve on the connecting plate. In addition, the reinforcing pipe sleeve can increase the contact area between the connecting plate and the pile body, and therefore connection between the end plates and the pile body is firmer. The concrete with a water-cement ratio of 0.28-0.29 is concrete between dry hard concrete and plastic concrete, and due to the fact that the water-cement ratio is very low, the concrete is very low in permeability, excellent in corrosion resistance and high in strength.

The invention discloses a mining method for a steep narrow vein tungsten ore body with an unstable surrounding rock. A mining preparation cutting engineering structure adopted by the static shrinkagemethod is used, and a layered propulsion manner from bottom to top is adopted, and the layering height is 1.6-2.2 m. The following steps of hole drilling, charge blasting, stope ventilation and localore removal from an ore chute are included, and the above steps are cyclically performed; after stope room backstopping ends, tunneling of a filling shaft in a stope jack-prop is performed; final oredrawing is organized; and the filling shaft is filled with barren rock. Compared with the prior art, when the mining method is used for local ore removal, a shrinkage pile is kept static and immobile,the effect of a filling body is achieved, a good supporting effect can be achieved on a crumbly strata of the hanging side, deforming damage and falling of the crumbly strata of the hanging side is prevented, and conditions are created for smooth upper mining of a stope room; and ore of a shrinkage stope closes the exposed faces of the hanging and heading side rock, clay minerals such as kaolin and montmorillonite are prevented from making contact with air and water, the weathering speed of the clay minerals is slowed down, and the stability of the rock mass is maintained.

Disclosed is a cutting machine with the overload protection function. The problems that excessive road cutting is performed, incomplete cutting is performed and a cutting machine does not have the overload protection function due to the fact that the depth is artificially set in the cutting process of a cutting machine are effectively solved. The construction time can be shortened, the construction progress can be accelerated, the technical requirement of operators is lowered, the operators and a cutting machine body are protected, and the cutting machine has generalization; the cutting machine comprises a machine frame, a pushing handle, wheels, a cutting piece, a small hydraulic station, a control system and a hydraulic motor. The cutting machine is simple and reasonable in structure, vertical motion of the cutting piece can be controlled while cutting is performed, it is ensured that a cut road can be completely separated from a soil matrix, secondary construction is avoided, the overload protection function is added while cutting is performed, the hydraulic motor is adopted as power, the protection effect can be achieved when the stress of the cutting piece changes suddenly, and the cutting piece and a transmission element are prevented from being deformed or damaged by excessive strength.

The invention discloses an elbow pipe with an auxiliary connecting and fixing structure. The elbow pipe with the auxiliary connecting and fixing structure comprises an elbow pipe body. The bending angle of the elbow pipe body is 90 degrees. The middle end position of a horizontal pipeline and the middle end position of a vertical pipeline of the elbow pipe body are provided with a first fixing ring and a second fixing ring correspondingly in a welded manner. The first fixing ring is provided with a first fixing base in a welded manner, and the second fixing ring is provided with a second fixing base in a welded manner. A supporting rod is welded between the first fixing ring and the second fixing ring. According to the elbow pipe with the auxiliary connecting and fixing structure, the elbow pipe body is fixedly provided with the first fixing base and the second base through the first fixing ring and the second fixing ring, the first fixing base and the second fixing base are used for fixing the elbow pipe body, by means of the arrangement of the first fixing base and the second fixing base, the fixation of the elbow pipe body is facilitated, the supporting rod is welded between thefirst fixing ring and the second fixing ring, the supporting rod can conduct auxiliary supporting on the elbow pipe body, the strength of the elbow pipe body is improved, and deformation damage of the elbow pipe body is prevented.