166results about How to "Guaranteed lifting" patented technology

The invention relates to the technical field of an aerocraft, in particular to a screw propeller and the aerocraft. The screw propeller comprises an oar hoop and at least two blades which are connected with the oar hoop, wherein at a position (the proportion of the distance from the position to the center of the oar hoop to the radius of the screw propeller is P), the attack angle of the blades is beta, beta is the continuous function of the radius proportion P and satisfies the following conditions that when P is more than or equal to 0 and less than or equal to 25 percent, beta is more than or equal to 10 degrees and less than or equal to 12 degrees; when P is more than 25 and less than or equal to 90 percent, beta is more than or equal to 8.75 degrees and less than 12 degrees; when P is more than 90 percent and less than or equal to 100 percent, beta is more than or equal to 8 degrees and less than or equal to 9 degrees. Due to the fact that different attack angles are arranged at different positions of the blades of the screw propeller, the air resistance is reduced, the efficiency is improved, and the flying speed and the flying distance of the aerocraft are increased; due to the fact that the attack angle beta of the screw propeller is continuously changed, the stability of the screw propeller is improved, and the flying performance of the aerocraft is improved.

The invention discloses an inserted lift scaffold with a video security monitoring system. The inserted lift scaffold is characterized by comprising a scaffold body structure (21), an inserted supporting structure (22), a lifting mechanism (23), a synchronization and load intelligent control system (6) and an intelligent video safety monitoring system (2). The inserted lift scaffold with the video security monitoring system provided by the invention is structurally made from steel and aluminum alloy materials, therefore the potential safety hazard of causing fires by woods, nylon nets and other materials can be eliminated; furthermore, by adopting the lightweight of a scaffold framework, a turning plate, a wire mesh fence, toeboards and a ladder stand and the like, the whole scaffold is light in weight, high in stiffness and high in safety factor; in addition, by adopting the intelligent video safety monitoring system and the synchronization and load intelligent control system, the safety of constructors and the scaffold in the process of lifting can be guaranteed.

The invention discloses an elevator overspeed governor. When an elevator stops, a safety device brakes a rope wheel of the overspeed governor or a tension rope wheel; if a cage slides, a steel wire rope is driven to move, and a safety gear operating mechanism of an elevator frame is lifted, a safety gear acts to force the cage to stop under the friction force between the steel wire rope and the rope wheel of the overspeed governor or the tension rope wheel so as to ensure the safe use of the elevator and avoid accidents; and when the elevator requires normal operation, the safety device is separated from the rope wheel of the overspeed governor and the tension rope wheel so as to ensure the normal lifting of the elevator cage.

The invention discloses a machining device for a solar module frame, and belongs to the field of aluminum profile machining mechanical equipment. According to the machining device, a feeding conveyingbelt is horizontally arranged on the upper side of a feeding conveying belt support, and frame bearing supports are horizontally arranged on the two sides of the upper portion of a machining main support correspondingly. Bearing turnover round plates are vertically and fixedly arranged on the two sides of a frame turnover rotary shaft, and the output end of a punching and riveting machining air cylinder is fixedly connected with the upper side of a lifting punching and riveting plate. Multiple punching and riveting pressing nails of conical structures are evenly arranged on the lower side ofa punching and riveting compressing plate. The output end of a frame translation air cylinder is fixedly connected with a frame translation support, and the output end of a lifting adjusting air cylinder is fixedly connected with the middle of the upper side of a frame containing and bearing support. The machining device is reasonable in structural design, corner pressing can be synchronously carried out on the ends of the two sides of the solar module frame fast, accurately, efficiently and stably, continuous and automatic producing and machining of the solar module frame are achieved, and the needs of production use are met.

The present invention relates to an X-ray detection machine of ultra-giant engineering tyre, which consists of a lead house, a fixing housing group, a tyre conveying and positioning vehicle, a track, a left supporting shaft group adjusting device, a right supporting shaft group adjusting device, an adjustable U-shaped X-ray receiving device, a ray emitting ball head adjusting mechanism, an elevating mechanism group, an isolation main control cabin, an electrical control cabinet system, a detection feedback displaying system, a high-voltage electric energy generator and a water cycle cooling system; wherein, the fixing housing group is arranged in the lead house; two sides of the fixing housing group are fixedly connected with the elevating mechanism group; the elevating mechanism group is movably connected with the left supporting shaft group adjusting device and the right supporting shaft group adjusting device; the supporting shaft group adjusting device is connected with the ray emitting ball head adjusting mechanism; the fixing housing group is connected with the adjustable U-shaped X-ray receiving device; the track is arranged in the middle part below the fixing housing group; the tyre conveying and positioning vehicle is arranged on the track; the lead house, the fixing housing group, the track, the isolation main control cabin, the electrical control cabinet system, the detection feedback displaying system, the high-voltage electric energy generator and the water cycle cooling system are all arranged on the same foundation plane. The method is in particular suitable for detecting the internal quality of the ultra-giant engineering tyre, and provides a detection means which guarantees the quality of ultra-giant engineering tyre products.

The invention relates to a multi-rotor unmanned aerial vehicle based on pulling force measurement and a flight control method thereof. The multi-rotor unmanned aerial vehicle based on pulling force measurement comprises a vehicle body, a plurality of vehicle arms, motors, an elastomer pedestal and rotors arranged on the motors. The motors and the rotors form one-to-one correspondence. The elastomer pedestal is arranged on the vehicle arms. The motors are arranged on the elastomer pedestal. An elastic deformation section of the elastomer pedestal is provided with a deformation measurement sensor so as to detect a pulling force of each motor. By using the unmanned aerial vehicle and the flight control method provided in the invention, a principle is simple and realization and popularization are easy, and an actual lift force of the unmanned aerial vehicle can reach an expected lift force and is not influenced by factors of the motors, a propeller, air-flow field disturbance and the like.

An ocean platform crane comprises a foundation pillar (3), a slewing bearing (4) and a rotary table (5). The foundation pillar (3) is of a hollow structure with two ends open, the bottom of the foundation pillar (3) is fixed onto a platform (1), a through hole is arranged in the middle of the rotary table (5), the rotary table (5) is rotatably matched with the foundation pillar (3) through the slewing bearing (4), the inner diameter of the through hole of the rotary table (5) and the inner diameter of the foundation pillar (3) are larger than the outer diameter of a pile leg (2), the lower portion of the pile leg (2) penetrates through the rotary table (5) and the foundation pillar (3), and safety gaps are reserved between the pile leg (2) and the inner wall of the rotary table (5) and between the pile leg (2) and the inner wall of the foundation pillar (3). The foundation pillar is of the hollow structure with the inner diameter larger than the outer diameter of the pile leg, and the pile leg is arranged in the foundation pillar, so that valuable space of the platform is saved, structural arrangement on the platform is facilitated, a boom cannot contact with the pile leg when the crane slews, normal operation of the crane is guaranteed, and structural safety of the crane and the pile leg is protected.

The invention relates to an upward and downward movement adjusting device for a warming therapeutic instrument. Elevating operation portions on the two sides of the device allow a warming moxibustion device to be elevated upward and downward, and also can be used for guiding vertical elevation when the warming moxibustion device is elevated. Therefore, no other elevation guiding devices need to be mounted. The warming moxibustion device is arranged on the adjusting device and is combined with the adjusting device. The adjusting device moves back and forth in a pad via a moving device. The adjusting device comprises a delivery plate, an engine driving portion, elevating operation portions and a pedestal. The delivery plateb moves back and forth via the above moving device. The engine driving portion is arranged above the delivery plate and is used for transmitting rotary force to the two sides. The elevating operation portions are arranged in a vertical guiding device and under elevating stands, and is used for converting power, namely, the rotary force, transmitted by the above engine driving portion, such that the elevating stands are elevated. The elevating operation portions comprise vertical guiding portions and are vertically arranged on the two sides of the above delivery plate. The upper interior part of each elevating operation portion is open, and each elevating stand is disposed on the upper interior part of each elevating operation portion. The two sides of the pedestal are fixed on the two sides of the above elevating stands. The warming moxibustion device is arranged on the pedestal.

The invention discloses transformer substation multi-functional handling equipment with trailing arm swinging adjustable and adopting a magnetic hanger loop for hoisting. The equipment comprises a frame and a draw-and-pull type moving trolley arranged in the frame, a cross-shaped main arm is arranged on the frame, the inclination angle of the cross-shaped main arm can be adjusted and locked, a subsidiary arm is connected to the top of the cross-shaped main arm, fixed pulleys are arranged at the two ends of the subsidiary arm, a hoisting mechanism is arranged on the frame, connected to a support cross beam hung at the lower end of the subsidiary arm through a lifting rope, connected with the magnetic hanger loop through the support cross beam and used for hoisting a switch trolley of a transformer substation, or else, the hoisting mechanism is connected to a lifting hook through the support cross beam and used for hoisting a cable trench cover plate. By means of the handling equipment, the switch trolley of the transformer substation can be hoisted stably and transferred to a designated position under a special site environment of the transformer substation, and the equipment is multi-functional equipment integrating the hoisting function and the transferring function.

The invention discloses an aviation obstruction beacon with foldable solar panels, and relates to the technical field of aviation obstruction beacons. The aviation obstruction beacon with the foldablesolar panels resolves the problems that a solar panel is prone to being damaged and the service life of the solar panel is shortened after being exposed outside for a long time due to the fact that the solar panel is fixedly arranged outside in an existing aviation obstruction beacon with the foldable solar panel. The aviation obstruction beacon with the foldable solar panels comprises a mountingbox used for containing solar panel devices. An obstruction beacon body is arranged on the top surface of the mounting box. Both sides of the interior of the mounting box are provided with the lifting solar panel devices. A hatchway is formed in the box body at the top of the mounting box. Each solar panel device comprises a supporting bar and a mounting plate with the solar panel. The top end ofeach supporting bar is hinged to one end of the corresponding mounting plate. The supporting bars are provided with a foldable mechanism used for folding and unfolding the mounting plates.

The invention relates to the technical filed of hoisting, and provides a steel plate hoisting fixture. The steel plate hoisting fixture comprises a screw and a hoisting nut; a thread on the screw is divided into two segments which are separately a right-handed thread and a left-handed thread; both ends of the screw are separately connected with the hoisting nut in a threaded mode; the top portionof the hosting nut is provided with suspension loops; the bottom of the hoisting nut is provided with a connecting plate; the inner side of the connecting plate is provided with C-shaped fixtures; thetwo suspension loops are provided with a lifting rope; and the middle portion of the lifting rope is provided with a lifting hook. According to the steel plate hoisting fixture, in the process of hoisting, the lifting rope only produces a transverse extrusion pressure to the hoisting nut, but not produces a transverse extrusion pressure to the C-shaped fixtures, and an elevating power produced from the C-shaped fixtures to the steel plate is ensured; and secondly, the distance of the two C-shaped fixtures can be adjusted by rotating the screw to prevent the steel plate from moving in the C-shaped fixtures, and the stability of hoisting is ensured.

The invention discloses a power battery lifting platform. The power battery lifting platform comprises a push handle, a control box, a charging interface, a base, an electric push rod positioned at the top end of the base, a lifting flat plate, an adjusting mechanism and a support rod positioned on one side of the electric push rod, wherein the lifting flat plate is positioned at the top ends of the electric push rod and the support rod; the adjusting mechanism comprises a base mounted at the top end of a rotating platform, an adjusting flat plate positioned on the base, an object carrying platform, a first driving motor mounted on the base, a first lead screw connected with the first driving motor, a second driving motor mounted on the adjusting flat plate, a second lead screw connected with the second driving motor and the rotating platform mounted on the lifting flat plate; and the first lead screw and the second lead screw are respectively positioned in a groove at the top end of the base and a groove at the top end of the adjusting flat plate. According to the power battery lifting platform, a power battery is placed on the object carrying platform, fine adjustment can be achieved in the front and back, left and right and rotation directions, the adjustment is accurate, the operation is simple, the automation degree is high, the burden of operators is relieved, the supporteffect is good, the stability is high, and the power battery installation time is saved.

The invention provides a vertical and horizontal dual-purpose steel ladle tilting mechanism which can solve the problems that a secondary hook of an overhead crane is difficult to advance and retreat or cannot advance and retreat when an existing tilting mechanism lifts a steel ladle after the steel ladle is horizontally placed, and can ensure the normal lifting of the steel ladle and the smelting and production. The tilting mechanism comprises a pull rod and a connecting rod, wherein one end of the connecting rod is rotationally arranged at one bottom side of the steel ladle, and the other end of the connecting rod is rotationally connected with the pull rod; the pull rod is provided with a first hanging shaft, the bottom angle end of the steel ladle is fixedly provided with a pull rod support, a limit gap is formed in the pull rod support, and the first hanging shaft is limited by the limit gap when the steel ladle is placed horizontally. The tiling mechanism is characterized in that the rotary connecting end of the connecting rod is provided with an oblong hole extending in a length direction of the connecting rod at one bottom side of the steel ladle, the bottom side of the steel ladle is fixedly provided with a hinge pin, the oblong hole is rotationally connected and installed at the bottom side of the steel ladle, the steel ladle and the connecting hole are provided with a connecting rod limit structure, and the connecting rod and the pull rod are further provided with a pull rod limit structure.

The invention provides a pressing ring apparatus and a reaction chamber. The pressing ring apparatus comprises pressing rings and supporting parts which are used for driving the corresponding pressing rings to move up and down; each supporting part comprises a stage surface; the stage surface is provided with a pin column; first through holes are formed in positions, corresponding to the pin columns, on the pressing rings correspondingly; the pin columns pass through the first through holes which are corresponding to the pin columns and are higher than the upper surfaces of the corresponding pressing rings; a blocking part is positioned in a position, which is higher than the upper surface of the corresponding pressing ring, on each pin column; and when the supporting parts jack up the corresponding pressing rings, a preset distance H is formed between the upper surface of the corresponding pressing ring and the lower surface of the corresponding blocking part. By adoption of the pressing ring apparatus provided by the invention, the inclination of the pressing rings or a condition that the pressing rings are separated from the supporting parts can be avoided, so that it is ensured that the pressing rings can accurately press the edge of a wafer; therefore, damage to the wafer can be further avoided; and the normal operation of wafer taking and wafer placement can be ensured.

The invention discloses a rope wheel type glass lifter which comprises a lifter body, a crank handle, a shaft sleeve and a motor. The lifter body comprises a thread winding drum and a rocking shaft for driving the thread winding drum, and the rocking shaft is in drive connection with the thread winding drum. The rocking handle is in detachable drive connection with the rocking shaft. The shaft sleeve is in drive connection with the rocking shaft. The motor is in drive connection with the shaft sleeve to drive the rocking shaft to rotate. The rope wheel type glass lifter is especially suitable for a situation that a child is in a vehicle, due to the fact that manual operation is available, no safety hammer is needed, the child can be prevented from accidentally hurting himself or herself or others, and people is prevented from being hurt by the knocked-off safety hammer during emergency brake ; due to the fact electric operation is available, the crank handle can be stored under normal circumstances, the child is prevented from opening a vehicle door window by rotating the crank handle and accidentally stretching the head or hands out of the window to have an accident.

The invention discloses a hidden type mosquito killer lamp. The hidden type mosquito killer lamp comprises a sleeve, an upper cover plate, a lower cover plate and a lifting column which is arranged between the upper cover plate and the lower cover plate and composed of a mosquito killing power grid are arranged inside the sleeve, mosquito attracting lamp tubes are arranged in the mosquito killingpower grid between the upper cover plate and the lower cover plate, a threaded tube is longitudinally arranged at the axis position between the upper cover plate and the lower cover plate, a lead screw is in threaded connection in the threaded tube, and the bottom end of the lead screw is connected to a rotating shaft of a motor; the sleeve is provided with a collecting disc. The hidden type mosquito killer lamp has the advantages of being not prone to damage, high in safety and reasonable in design.

The invention discloses a self-climbing operation platform for a hoistway. The self-climbing operation platform comprises a tower body system and a wall attaching system; the wall attaching system comprises two attaching mechanisms vertically fixed to the two adjacent sides of the elevator hoistway; the tower body system comprises a top work mechanism, a tower body and a bottom drive mechanism which are sequentially and fixedly connected from top to bottom; and the tower body is in vertical sliding connection with the two attaching mechanisms at the same time. The operation platform comprises the tower body, the two attaching mechanisms fixed in the hoistway and the bottom drive mechanism arranged at the lower portion of the tower body. The tower body is connected with a guide rail frame at different heights by dismounting and mounting the attaching mechanisms to the guide rail frame, the purpose of self ascending and descending in the hoistway is finally achieved, and the construction work requirement is met. The multiple construction problems that at present, an operation construction platform in the hoistway is difficult to erect, and material transportation is difficult are solved.

The invention discloses a bell-type electric elevator furnace, which comprises a heating furnace body (7), wherein a heating body (8) is arranged in the heating furnace body (7). The bell-type electric elevator furnace is characterized in that: a door frame (1) is arranged above the heating furnace body (7); the door frame is provided with a chain elevator mechanism; guide mechanisms are arranged on the two sides of the heating furnace body (7); and thus, an electric furnace elevating system of which the upper part is elevated is formed. The bell-type electric elevator furnace of the invention adopts the chain elevator mechanism to elevate and descend the whole electric furnace through two chains, realizes the precise control over the elevation together with the guide mechanisms, and is provided with a travel switch and an auxiliary positioning device to ensure that the electric furnace is descended to a designated position and further improve the safety coefficient. The bell-type electric elevator furnace of the invention is small in size, simple in structure and low in cost and can be used in trial sites such as colleagues and universities, research institutions and laboratories.

The invention discloses a fluid filtering method and a fluid filtering device. The fluid filtering device comprises a filtering medium, and further comprises a bracket, a cylindrical part, a first pipe and a power source, wherein a rotating shaft is arranged on the bracket; the cylindrical part is hollow, and two ends of the cylindrical part are arranged on the rotating shaft; the filtering medium is arranged on an outer edge of the cylindrical part; the first pipe penetrates through the interior of the rotating shaft, and an inlet end of the first pipe is positioned in the cylindrical part; and the power source is used for driving the cylindrical part to rotate. According to the filtering method and the filtering device, the operations of filtering and cleaning are synchronously performed, the cleaning effect is good, and blockage is avoided. Moreover, the filtering device is simple in structure and low in cost.

The invention provides a design method for a fixed-wing air survey type unmanned aerial vehicle. The method comprises the following steps: based on a vehicle structure and the working performance, designing the wing profile and a vehicle body; analyzing designed parameters through a Profili software model; drawing a base drawing in CAD (Computer-Aid Design); performing 3D modeling on the drawn base drawing in SketchUP; printing a drawing for manual manufacturing after obtaining a vehicle-mounted 3D model in order to obtain an XW-06 air survey type unmanned aerial vehicle which is low in cost, is easy to operate, and has high stability. The unmanned aerial vehicle manufactured through the design method provided by the invention is low in cost, and has high load capacity; high interference resistance and high stability can be realized specific to different weather conditions, and user-friendly man-machine interactivity is realized.

The invention discloses a high-voltage common-rail electrically-controlled oil sprayer. The high-voltage common-rail electrically-controlled oil sprayer comprises an oil sprayer body, wherein a valve assembly formed by a control valve and a control piston is assembled in the oil sprayer body, an armature assembly is arranged above the control valve, an armature lift-range adjusting washer is arranged between the armature assembly and the control valve, and an electromagnetic valve assembly is arranged above the armature assembly; and an oil return throttling hole of the control valve is cooperated with a steel ball, the lower end of the control piston is cooperated with an ejector rod, an oil nozzle spring sleeves the ejector rod, an oil spraying nozzle mated part is arranged below the ejector rod, an oil spraying nozzle tightening cap sleeves the oil spraying nozzle mated part, and the oil spraying nozzle tightening cap is connected with the lower end of the oil sprayer body in a screwing manner. The high-voltage common-rail electrically-controlled oil sprayer has the advantages of reasonability in structure, convenience in assembly and repair, convenience in clearance adjustment, low production cost and long service life.

The present invention relates to a hoist double-trolley electric hoist which comprises the following components: a motor with a brake, a speed reducer installed on the output shaft of motor, a bracket and a roll device installed on the bracket. The invention is characterized in that the brake of motor is a first brake. A second brake is installed at the front part of the first brake. The braking disc of the second brake is installed on the output shaft of motor through a key. The second brake is installed in the casing of motor. The roll device comprises a reel and a transmission shaft. One end of transmission shaft in the roll device is connected with the motor side. The other end of transmission shaft is connected with a braking sleeve through a connecting shaft. The braking sleeve is installed with a hydraulic braking disc through a fastener. The lower end of hydraulic braking disc is installed with a third brake. The friction plates of third brake are installed at two sides of hydraulic braking disc. Therefore the hoist double-trolley electric hoist of the invention not only can prevent the accident caused by the braking failure, but also has the advantages of small volume, simple structure, convenient installation, greatly increased safety performance and saved space.