209results about How to "No rollover" patented technology

The invention discloses a dynamic automatic drive lane-changing trajectory planning method based on real-time environment information. A rollover limitation trajectory vertical coordinate, an optimal trajectory and a collision avoidance trajectory terminus security area are calculated; the relation between the rollover limitation trajectory vertical coordinate and the security area is compared, the positional relation between the optimal trajectory vertical coordinate and the security area is further compared, and then lane-changing decision-making is conducted. According to the dynamic automatic drive lane-changing trajectory planning method based on the real-time environment information, and a polynomial trajectory equation which dose not depend on time is adopted to represent a lane-changing trajectory curve, so that the problem that hypotheses of a speed and an accelerated speed are too strong is avoided; furthermore, collision avoidance algorithm and rollover prevention algorithm which are based on reaction time are introduced to guarantee security of lane-changing; then the optimal trajectory in a safe trajectory cluster is determined through real-time speed adjusting; and finally, an optimal lane-changing trajectory of real-time dynamic state is output through a trajectory generation module to guide an autonomous vehicle to complete a lane-changing behavior, and therefore a set of complete dynamic autonomous vehicle lane-changing trajectory planning module is built.

The invention relates to a pipeline cleaning robot applied to industrial field, and also relates to a method for controlling the walking robot. The robot comprises a connection shaft (2), a supporting leg (3), a drive plate (4), a pusher dog (5), a connection rope (8), a variable pitch motor (9), a drive motor (10), a cleaning device (12) and a roller wheel device (14), wherein the connection rope (8) passes through the drive plate (4), and is connected with variable pitch motor (9); the supporting leg (3) which can retractably rotate is connected with the drive plate (4); the drive motor (10) is connected with another frame shell end part (18) through a gear disc (17) and the connection shaft (2); the supporting leg extends out of a frame shell (13), and is contacted with the inner surface of the pipeline; and the cleaning device (12) is arranged on the frame shell (13). With the scheme, the robot is more efficient, can turn a curve smoothly, can be controlled more easily, has the advantages of simple structure and convenient manufacture, and is applicable to pipelines with different diameters.

The invention discloses a braking force distribution method of an electromobile, and belongs to the field of electromobiles. In order to solve the problems that when the electromobile brakes on a pavement of a low attachment coefficient, a motor is controlled to reduce energy recovery, the control complexity is increased, and the safety of the electromobile is reduced, the method is provided. Themethod comprises the following steps that according to braking intensity, the brake force of front and back wheels is distributed; the brake intensity, battery SOC and the total demand brake force aretaken as input, and the proportion of regenerated braking force to front-wheel braking force is output through a fuzzy controller; the regenerated braking force is subtracted from the front-wheel braking force, and friction braking force born by front wheels is obtained; a slip rate threshold value is set, the actual slip rate is taken as input, through backstepping control, the proportion of theregenerated braking force is reduced, and when the actual slip rate exceeds a required slip rate, the braking quota distributed to a driving motor is reduced through backstepping control; according to the method, on the pavement of the low attachment coefficient, energy recovery can be provided as much as possible, and the safety of the electromobile can be kept.

The invention relates to a rollover prevention safety system of motor vehicle, which discloses an assistant safety system of motor vehicle for preventing rollover in high-speed turning, belonging to the motor vehicle safety control system technology field. The rollover prevention safety system can make vehicle adjust vehicle gravity center automatically in high-speed turning and decrease the centrifugal force needed in vehicle turning so that the turning radius can be decreased and it is safer and more reliable in high-speed turning of vehicle. The invention can be realized by the following project. Hydraulic adjusting system of rollover prevention and hydraulic power turning machine are connected on hydraulic pump in parallel; when the speed achieves more than the certain value, open-close of corresponding electromagnetic valve is adjusted; when vehicle is turning, open-close of corresponding electromagnetic valve is adjusted to achieve the purpose of adjusting vehicle gravity center in high-speed turning. The rollover prevention safety system of motor vehicle in invention can be applied in various motor vehicles and it has a very good market applicable prospect.

The invention provides a feeding device of an irregular workpiece automatic processing machine tool and belongs to the technical field of machine tool components. The feeding device of the irregular workpiece automatic processing machine tool solves the problem that an existing feeding device of the processing machine tool cannot convey irregular workpieces to a clamp of the machine tool smoothly and accurately. The feeding device of the irregular workpiece automatic processing machine tool comprises a support, a barrel-shaped rear material receiving sleeve is fixed on the support, a front material receiving sleeve is arranged on the support, a translation driving mechanism is arranged on the support, a rear material pushing rod is arranged in a cavity of the rear material receiving sleeve, a first driving mechanism is arranged on the support or the rear material receiving sleeve, a front material pushing rod is arranged in the front material receiving sleeve, a second driving mechanism is arranged on the front material receiving sleeve, a front material receiving inner sleeve is further arranged between the front material pushing rod and the front material receiving sleeve, the front material receiving inner sleeve is provided with strip-shaped holes, bosses are arranged on the sides of the front material pushing rod, and the bosses are embedded in the strip-shaped holes. The feeding device of the irregular workpiece automatic processing machine tool has the advantage of being capable of conveying the irregular workpieces to the clamp of the machine tool smoothly and accurately.

A variable stiffness biped robot foot system, which relates to a variable stiffness humanoid robot foot system to solve the shock absorption effect when the existing rigid flat-bottom integrated foot with additional rubber soft bottom layer contacts the ground It has certain limitations, and the rigidity is still relatively large. When encountering rough roads or stepping on hard particles, it has high requirements on the performance of the control algorithm and control system and is still prone to instability and falls. It includes the soles of the feet and feet. Back; it also includes the middle layer of the dorsum of the front foot, the middle layer of the dorsum of the back foot, the dorsum of the front foot support layer, the dorsum of the rear foot support layer, pneumatic quick-change joints and multiple pressure sensors; the sole of the foot is made of silicone air cushion, and the silicone air cushion has a through A plurality of air chambers, a fore dorsum middle layer and a rear dorsal middle layer are installed on the upper surface of the sole; the front dorsum support layer is hingedly connected with the rear dorsum support layer; an array is arranged between the dorsum middle layer of the foot and the dorsum support layer Multiple pressure sensors. The invention is used for the foot of a biped humanoid robot.

The invention relates to an automatic storing, stacking, picking and placing device for intelligent warehousing, and belongs to the technical field of picking and placing device structures special forintelligent warehousing. The device comprises an AGV, an advancing track code strip pasted on the ground, a pallet fork device capable of automatically adjusting the width of a fork, a horizontal rotating and vertical lifting device capable of driving the fork to ascend, descend and rotate, and a double-shaft XY automatic detecting and adjusting device capable of adjusting the fork to be parallelto goods to be taken. The AGV body is provided with a camera used for identifying the advancing track code strip; the bottom of the horizontal rotating and vertical lifting device is installed on theAGV body, the double-shaft XY automatic detecting and adjusting device is installed on the horizontal rotating and vertical lifting device, the fork is installed above the double-shaft XY automatic detecting and adjusting device, and a battery and a control box are further installed on the AGV body. According to the invention, the device is low in cost and high in flexibility, has a unique function of automatically adapting to the angle of the goods shelf, and greatly improves the goods taking safety of the goods fork of the whole stacking machine on the goods shelf.

The invention relates to an anti-collision and anti-rollover flexible roller intelligent protective fence, which comprises a plurality of parallel main shafts, wherein flexible rollers are arranged outside each main shaft in a sleeving way; a gap is formed between the flexible rollers; and a connecting device is fixedly connected with the plurality main shafts. A rotating position sensor is arranged in each flexible roller. The anti-collision and anti-rollover flexible roller intelligent protective fence has the beneficial effects that when scratch or collision, between a vehicle and the protective fence, caused by a traffic accident occurs, a part of energy is counteracted through the deformation of the flexible rollers; the resilience force after the deformation of the flexible rollers can be exerted on a vehicle body, so that the vehicle damage degree due to collision is reduced; meanwhile, the damage degree of the protective fence per se is also reduced; the automatic rotation generated by the flexible rollers after receiving the lateral force achieves the guide effect on wheels, so that the vehicle body corrects the self direction in the direction along the road; and the vehicle body basically cannot generate the rollover phenomenon due to sudden stop. Rotating signals of the flexible rollers can be transmitted to a remote end, so that a traffic administration department can immediately, fast and accurately know traffic information and take emergency measures.

The invention discloses a support and hanger video testing device used for testing a support and hanger for installing a main heat transmission system pipeline branch pipe. The support and hanger video testing device comprises a carrying device, an extensible and retractable device arranged on the carrying device in an assembly manner and a camera device, wherein the extensible and retractable device comprises an extensible and retractable frame and a first drive mechanism, the extensible and retractable frame comprises a fixed end and an extensible and retractable end, the first drive mechanism is arranged on the carrying device, and the first drive mechanism drives the extensible and retractable frame to extend or retract; and the camera device comprises a panorama camera and a retraction jack, and the retraction jack is arranged at the extensible and retractable end and used for downwards putting and retracting the panorama camera in the gravity direction. The support and hanger video testing device can penetrate a support and hanger gap and branch pipe gaps, overcome the constraint of narrow space and automatically and comprehensively test the support and hanger.

The embodiment of the invention provides intelligent mobile equipment and a path control method thereof, and a computer readable storage medium; the equipment comprises a first gyroscope and a secondgyroscope; the method comprises the following steps: controlling the intelligent mobile equipment to move in a path of a Chinese character gong; obtaining first data winding in the first direction anddetected by the first gyroscope in the intelligent mobile equipment running process, and obtaining second data and third data winding in the second and third directions and detected by the second gyroscope; controlling the mobile path of the intelligent mobile equipment according to the first data, the second data and the third data, wherein the first direction, the second direction and the thirddirection form an orthogonal system. The intelligent mobile equipment simultaneously comprises the first and second gyroscopes used for controlling angles of different directions, thus determining the mobile path of the intelligent mobile equipment.

The invention discloses a device for enabling a wheelchair to get on or off a vehicle. The device is characterized by mainly comprising a movable platform, a suspension platform, a sliding block guiding branch chain, a first intermediate branch chain, a second intermediate branch chain, a wheelchair positioning fastening device, a sliding block, a machine frame and an electric push rod. The structural layout of the whole device is that the sliding block is connected with the machine frame through the sliding block guiding branch chain, the suspension platform and the sliding block are in symmetric connection through the first intermediate branch chain and the second intermediate branch chain, the movable platform is connected with the suspension platform through a movable platform guiding branch chain, the wheelchair positioning fastening device is installed on the movable platform and used for being connected with an electric wheelchair, and the electric push rod is connected between the suspension platform and the sliding block. The first intermediate branch chain and the second intermediate branch chain are identical in structure and form double parallelogram mechanisms. Under the conditions of guaranteeing that the sliding block is horizontal, movement of the suspension platform is in a translation process and is always kept in a horizontal state, simultaneously two parallelograms are matched to be used, and horizontal movement stability of the movable platform is also guaranteed.

The invention relates to a multi-axial carbon fiber yarn zero-degree threading device, which comprises a creel and a first guide mechanism at the yarn outlet end of the creel, wherein a first yarn transition support and a second yarn transition support are sequentially arranged at one side of the creel, a second guide mechanism is arranged on the first yarn transition support, a third guide mechanism and a guide plate which is positioned behind the third guide mechanism are arranged on the second yarn transition support, at least a first line of guide holes and a second line of guide holes which is positioned below the first line of guide holes are arranged in the guide plate, both the first and the second lines of guide holes comprise a plurality of guide holes with the same space, and the right end of the first guide hole in the first line of guide holes is vertically intersected with the left end of the guide hole which is in the second line of guide holes and corresponds to the first guide hole; and a jacking device is arranged below the creel, the carbon fiber yarn comes out from the creel to a knitting machine, the device can prevent the surface of the carbon fiber yarn fromgenerating broken filaments, when the carbon fiber yarn enters the knitting machine, no clearance is left between the adjacent carbon fiber yarns, so the knitting quality of a carbon fiber yarn knitting product is improved.

The invention relates to an optical cable splice box. The optical cable splice box comprises a box body, a box door and a box cover, the box door and the box cover are installed on the box body, the side faces of the box body are provided with a plurality of cooling holes, the side edges of the box cover are provided with two supporting points, levers are hinged to the supporting points, each lever comprises a first lever portion and a second lever portion, the end portion of each first lever portion is connected with a connection rod, the side face of each connection rod is vertically provided with a plurality of baffles capable of sealing the corresponding cooling holes, a water collection container is arranged on the upper portions of the second lever portions, and the levers are in the horizontal state when no object exists in the water collection container. In rainy days, the cooling holes can be sealed automatically, trouble and untimeliness of manual operation are eliminated, and therefore rainwater is prevented from entering the optical cable splice box.

The invention relates to the technical field of four-wheel hand trucks, in particular to a trolley small in turning radius and capable of preventing turning on the side. The trolley small in turning radius and capable of preventing turning on the side comprises a trolley body and a handle located on the longitudinal end of the trolley body, wherein the trolley body is used for bearing objects. The trolley small in turning radius and capable of preventing turning on the side is characterized by further comprising multiple rolling wheels which support the lower side of the vehicle body and can rotate around the horizontal rotation axes of the rolling wheels, the rolling wheels comprise at least two rolling wheel groups which are arranged at transverse intervals, each rolling wheel group comprises a front rolling wheel located at the longitudinal front end of the trolley body and a back rolling wheel located at the longitudinal back end, a transmission structure enabling rotation of the handle into revolution around the vertical rotation axis of the front rolling wheels is arranged between the handle and the front rolling wheels, and a linkage structure is arranged between each front rolling wheel and the back rolling wheel of the same group and enables the back rolling wheel to conduct revolution reversely when the front rolling wheel conducts revolution. The trolley small in turning radius and capable of preventing turning on the side is simple in structure, convenient to use, small in turning radius and suitable for various narrow areas, achieves safer and more stable walking and has great popularization value.

The invention discloses a paperboard stacking and packaging device which comprises a stacking device and a packaging device used for bundling paperboard stacks. The packaging device is arranged on the rear side of the stacking device. The stacking device comprises a support, partition plates, receiving brackets, a push plate and a lifting plate. Baffles capable of sliding front and back are arranged on the front side and the rear side of the support. The receiving brackets and the partition plates are arranged on the baffles correspondingly. The partition plates are arranged above the receiving brackets, and the lifting plate is arranged below the receiving brackets and is in sliding fit with the support. The push plate is arranged on the support, a conveying belt is arranged below the lifting plate, and the lifting plate is provided with a plurality of through grooves at intervals, wherein the conveying belt makes contact with the paperboard stacks through the through grooves. According to the paperboard stacking and packaging device, the structure is simple, paperboards with different sizes can be received, stacking is orderly, and the stacked paperboards are packaged.

The invention discloses a twin-screw compression straw baler, and belongs to the field of agricultural machinery. The problems of complex structure and heavy weight of a baler in the prior art are solved. According to the technical scheme, the twin-screw compression straw baler mainly comprises a twin-screw straw compressor, a baling device and a driving device, wherein the twin-screw straw compressor comprises a charging barrel, a first helical blade and a second helical blade; the charging barrel is provided with a feed inlet; the first and second helical blades are arranged abreast in the charging barrel; the charging barrel is communicated with the baling device, and is used for delivering straws to the baling device through the first and second helical blades; the first and second helical blades are driven by the driving device; the helical directions of the first and second helical blades are opposite; the rotating directions of the first and second helical blades are opposite and back to the feed inlet. The twin-screw compression straw baler is mainly used for compressing and baling the straws.

The invention discloses a hydraulic active anti-rollover system for emergency rescue vehicles. The hydraulic active anti-rollover system comprises a hydraulic system, an anti-rollover actuator and a control system. The hydraulic system comprises a hydraulic motor, an electromagnetic proportional overflow valve, a three-position four-way electromagnetic reversing valve, an energy accumulator, an overflow valve, a hydraulic pump and a filter. The anti-rollover actuator comprises a hydraulic motor, a hydraulic motor reducer, a hydraulic motor reducer mounting plate, a V-shaped oblique arm and a support arm; the support arm is fixedly mounted at the lower portion of a vehicle body; the V-shaped oblique arm is fixedly mounted on the support arm and is fitted to a hydraulic motor reducer outputshaft hole. The control system includes a speed sensor, a wheel angle sensor, a tire pressure monitor, a tilt sensor and a controller. The hydraulic motor herein provides anti-roll torque that acts directly on the vehicle body; no rollover occurs when a vehicle is steered; driving smoothness of the vehicle is unaffected.

The invention discloses a novel flexible membrane material gas storage floating cover. The novel flexible membrane material gas storage floating cover mainly comprises a membrane material floating cover and balancing weights; the membrane material floating cover is in a cylindrical structure, the top of the structure is provided with an air ventilation nozzle and the bottom of the membrane material floating cover is open; the open bottom part is connected with the balancing weights through floating cover flanges and bolts in a locking mode; the gas storage and the gas supply are controlled and pressed by the self weight of the balancing weights, and the connection part of each balancing weight and the membrane material floating cover is also provided with a pressing block. Compared with the prior art, the novel flexible membrane material gas storage floating cover has the main advantages that the quality is stable; the service life is long; the requirements of methane storage and conveying pressure of the engineering system through the setting of the self weight of the balancing weights for the flexible membrane material floating cover gas storage device are met, and the running stability for applying the device engineering system can be improved effectively; the flexible membrane material floating cover is low in self weight, can be folded, is very simple and convenient in installation and maintenance.

The invention provides a matching asymmetric traction plate and a line release pulley for construction of one-pull-three tension line release. The asymmetric traction plate comprises a large guided pulling plate, a traction plate body, small guided pulling plates and an anti-twister. Two small guided pulling plates and one small guided pulling plate are respectively arranged at both sides of the anti-twister of the tail end of the traction plate, and two leads and one lead are respectively connected with both sides. The line release pulley comprises a hanging plate, a bracket, a bearing shaft,a steel wire rope pulley and wire pulleys. Two wire pulleys and one wire pulley are respectively arranged at both sides of the steel wire rope pulley, and the position of the wire pulley, which corresponds to the steel wire rope pulley, is in one-to-one corresponding with the position of the small guided pulling plate, which corresponds to the anti-twister. The traction plate cannot overturn dueto the guarantee of the requirements on a certain distance from the small guided pulling plate to an axial line of the anti-twister as well as a lightening hole and a balancing weight which are additionally arranged on a certain position of the traction plate body. The line release pulley is hung on a transmission tower by two hanging holes of the hanging plate, asymmetric loads subjected in linerelease are transmitted to the tower through a connecting piece, thereby guaranteeing the stability of the pulley.

An automatic ground pulley collimation device comprises a balancing support, wherein a ground pulley is erected on the balancing support through a rotary shaft in a suspended mode. The device is characterized by further comprising automatic collimation levers which are symmetrically located on the two sides of the ground pulley, one end of a rotary arm is installed on the rotary shaft, the other end of the rotary arm is provided with a cable guiding hole, and the ground acting points of the ground pulley are located on the same side of the rotary shaft. The ground pulley is erected on the balancing support through the rotary shaft firstly, a bolt fixing mechanism at one end of the ground acting point of each retractable structure on the upper portion of the balancing support is detached, the cable guiding hole is detached or opened from automatic collimation lever fixing plates, and the cable guiding hole is fixed or locked after a cable is installed in cable grooves in the fixing plates. The ground pulley is prevented from moving horizontally through the ground acting points, the vertical tension of the cable is transmitted to the automatic collimation levers through the cable guiding hole in work, the plane where the cable is located is always perpendicular to the ground, and therefore the ground pulley keeps upward when pulled to get away from the ground instead of overturning.

The invention discloses a later-stage processing method of fabric and special equipment thereof. The special equipment comprises one or a plurality of cylinders, an expander and an ironing machine which are arranged in sequence along the running direction of the fabric, wherein an inlet device and an outlet device are arranged at the inlet and outlet of each cylinder respectively; each inlet device and each outlet device respectively comprise an upper pressurized water roll, a lower pressurized water roll and a power device used for driving the pressurized water rolls; a sponge water absorbing roll is adopted as the pressurized water roll of the final outlet device; the ironing machine comprises a first rotary drum and a second rotary drum the gear ratios of which can be adjusted; and the expander takes the shape of an inverted trapezoid, and is arranged on a conveyer belt at the feeding port of the first rotary drum of the ironing machine. The special equipment disclosed by the invention can be used for simultaneously processing elastic fabric and non-elastic fabric, and the processed elastic fabric has flat and smooth surface and good elasticity.

The invention discloses a weight supporting device of a fire-fighting robot. The robot comprises a robot body and a water cannon head, the water cannon head is arranged on the top of the robot body, afront motor power device is arranged on the front portion of the robot body, front weight base discs are arranged at the positions, on the two sides of the front motor power device, of the robot body, the front motor power device is connected with the front weight base discs through transmission rods, the front weight base discs and the connected transmission rods are fixedly connected, a rear motor power device is arranged on the rear portion of the robot body, rear weight base discs are arranged at the positions, on the two sides of the rear motor power device, of the robot body, the rear motor power device is connected with the rear weight base discs through transmission rods, and the rear weight base discs are fixedly connected with the connected transmission rods. The contact area between the robot and the ground during water spraying is increased, when the fire-fighting robot works, the larger water spraying amount can be provided, and it is ensured that the device cannot turn over.

The invention discloses a rapid AIAP shape interpolation algorithm, comprising six steps of 1, finding singular boundaries, 2, segmenting into grids; 3, setting a propagating source, and propagating a local bid price; 4, outputting an initialization sequence; 5, decoupling an initialization shape sequence; and 6, iteratively descending block coordinates. The main problem to be solved is how to obtain a transition sequence according with physical or visual experience by internal interpolation in two given geometrical shape key frames based on triangular grids, and establish a geometric processing frame, which can be applied to deformation, movement transplantation and shape sequence edition, based on the transition sequence. The rapid AIAP shape interpolation algorithm has the advantages of being higher in speed, capable of correcting mistakenly segmenting, applicable to two-dimensional interpolation and three-dimensional interpolation, and rapid in convergence and good in anti-noise property in the iteration period.

The invention is applicable to the technical field of robots, and provides a wheeled robot and a control method thereof. The wheeled robot comprises a robot main body, a ranging sensor arranged at thefront end of the robot main body and used for detecting the distance between the robot main body and the ground, a head rotationally arranged on the robot main body and used for adjusting the gravitycenter of the wheeled robot, and a control module electrically connected with the ranging sensor and used for receiving a signal detected by the ranging sensor and controlling the head to rotate according to the received signal. The gravity center of the wheeled robot is controllable, so that the shape design of the wheeled robot is not limited, meanwhile the braking acceleration of the wheeled robot is improved, and the traveling speed of the wheeled robot is increased; and in addition, the distance detection of the ranging sensor located at the front end of the robot main body can prevent the wheeled robot from falling off, and the arrangement of the head can prevent the wheeled robot from leaning forwards or rolling over during falling prevention braking.

The invention discloses a paperboard stacking device. The paperboard stacking device comprises a bracket, a partition board, a collecting carrier, a pushing plate and a lifting plate, wherein baffles capable of sliding forwards and backwards are arranged at the front and rear sides of the bracket; both the collecting carrier and the partition board are arranged on the baffles; the partition board is arranged above the collecting carrier; the lifting plate is arranged below the collecting carrier and is in sliding fit with the bracket; and the pushing plate is arranged on the bracket, a conveyor belt is arranged below the lifting plate, and a plurality of through grooves for helping the conveyor belt be in contact with a paperboard stack are arranged in the lifting plate at intervals. The paperboard stacking device is simple in structure and can collect paperboards with different sizes and at the same time tidily stack the paperboards, thereby facilitating the following operation.

The invention provides storm-preventing type aquaculture equipment and belongs to the field of cultivation. The storm-preventing type aquaculture equipment comprises a cylindrical net box, the lower end of the net box is located above the horizontal plane, the upper end of the net box extends out of the horizontal plane, the outer wall of the upper end of the net box is fixedly connected with an annular air bag, the air bag comprises an inflation portion and a sealed portion fixedly connected with the inflation portion, the sealed portion is not communicated with the inflation portion, and the sealed portion is fixedly connected to the outer wall of the upper end of the net box; an end cover is arranged at an end port of the upper end of the net box, the end cover is matched with the end port in the upper end of the net box in size, the end cover is provided with a water hole, and one end of the end cover is hinged to the net box; the inflation portion is provided with an air hole, the air hole is fixedly connected with an air pipe, the two ends of the air pipe are communicated, the lower end of the air pipe is communicated with the inflation portion, a ball valve is arranged at the upper end of the air pipe, and the middle of the end cover is fixedly connected with an indicating rod. When the end cover is closed, the indicating rod is vertically upwards arranged. The storm-preventing type aquaculture equipment can prevent the net box from being turned over in the side direction and is delicate in structural design.

The invention discloses a telescopic folding type material conveying device and a transport ship. The conveying device comprises a portal frame seat, a conveying frame seat, a portal frame hinged to the portal frame seat and a conveying arm hinged to the conveying frame seat; a turnover mechanism for driving the portal frame to turn over towards the inner side is arranged on the inner side of the portal frame seat, and the conveying arm comprises a main arm and multiple stages of telescopic arms; retracting-stretching mechanisms for driving the main arm and the multiple stages of telescopic arms to get close to or be separated from the portal frame are arranged between the portal frame and the main arm and between the portal frame and the multiple stages of telescopic arms; and an arm rest telescopic mechanism for driving the multiple stages of telescopic arms to stretch out or retract back is arranged on the main arm. By means of the telescopic folding type material conveying device, the transport ship can pass through bridge openings in any shape, the safety performance is good, and space occupied by the folded portal frame and the folded conveying arm is small.

The invention discloses a tooling and method for slantly lifting a piston assembly, comprising a pair of transverse plates, a piston rod grip ring group and an upper beam, wherein the piston rod grip ring group comprises a main pipe clamp, an auxiliary pipe clamp, two arc-shaped bushes, a plurality of struts and shackles, and chains with hooks; the arc-shaped bushes at the inner sides of the main pipe clamp and the auxiliary pipe clamp are used for clamping the upper part of a piston rod; when a piston assembly is slantly lifted, two ends of the upper beam are connected with the two ends of the main pipe clamp respectively by virtue of the chains with the hooks and the shackles; and a hook at the lower side of an engine-room crane is used for hooking the middle part of the upper beam. A method for slantly lifting the piston assembly disclosed by the invention comprises the steps that vertically lifting the piston assembly is vertically lifted and supported on the transverse plates, and the suspension center is dropped to the upper part of the piston rod, thus realizing the purpose of slantly lifting the piston assembly. The tooling disclosed by the invention is strong in universality, low in manufacture cost, simple and convenient to operate, and the problem that slant lifting needs of multiple diesel engine piston assemblies for ships are met through adoption of arc-shaped bushes of various specifications and struts is solved.

The invention discloses a nucleic acid blot membrane-transferring device which comprises a membrane-transferring trough used for containing solution, wherein the upper part of the membrane-transferring trough is provided with a carrying platform, a pressure plate which can up and down move and is provided with a balance weight is arranged above the carrying platform, and the pressure plate is connected with the membrane-transferring trough by a sliding rod. The pressure plate can move up and down above the carrying platform along the sliding rod. The nucleic acid blot membrane-transferring device has simple structure and convenient operation, and can effectively improve the success ratio of the blot hybridization membrane-transferring experiments.

The invention discloses a walking and tilt-slip simulation test device with a variable active fault dip angle and a working method.According to the test device, a walking-slip model box is pushed to move horizontally through a walking-slip pushing device, a settlement platform is controlled to incline through an electric cylinder, and a tilt-slip model box is pushed to move on the settlement platform through a tilt-slip counterforce device; an overlying load pressurizing device is additionally arranged on the upper portion of the strike-slip model box and the upper portion of the tilt-slip model box, high ground stress borne by a tunnel in a fault can be simulated, tunnel damage forms under different tilt-angle faults can be simulated, and more working conditions can be designed compared with an existing experimental model box. According to the invention, strike-slip fault movement and tilt-slip fault movement can be realized, and strike-slip and tilt-slip fault movement can also be carried out; the fault inclination angle can be changed, and experiments under various working conditions can be carried out; according to the model box, the dislocation belt is used for dislocation, the model box better fits the actual condition of fault movement compared with a model box which only conducts dislocation face dislocation in the past, and the application prospect is very wide.