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349results about How to "Won't slide" patented technology

Lifting platform for electric power overhaul

The invention discloses a lifting platform for electric power overhaul. The lifting platform comprises a device base. Support arms are hinged to the two sides of the device base. A lifting rack is arranged in the middle of the device base and matched with a set of lifting oil cylinders arranged on the device base. A lifting platform body is arranged on the lifting rack. Side guard bars are arranged at the two sides of the lifting platform body correspondingly. A controller is arranged on one of the side guard bars. The other end of the lifting platform body is hinged to a step plate guard bar through a pin shaft. The lifting platform body is connected with an extension rack through an extending-and-contracting rod and an extending-and-contracting oil cylinder. The lower portion of the extension rack is connected with a movable vehicle through a support pillar. The lifting platform for electric power overhaul can ascend and descend flexibly; the lifting platform body can be extended, the working area of the lifting platform body is expanded, and overhaul personnel can obtain a larger activity space; much convenience is provided for electric power overhaul; and meanwhile, the device base can be in stable contact with the ground without sliding, so that safety is high.
Owner:PENGLAI POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO

Lifting conveying device

The invention provides a lifting conveying device. The lifting conveying device comprises a controller, a lifting mechanism and a clamping transmission mechanism. The lifting mechanism comprises a driving motor and a screw-nut pair connected with the driving motor, wherein a lead screw is movably connected with a horizontal plate through a nut; a first clamping plate rotationally connected with the front end of the horizontal plate and a groove for containing the first clamping plate are arranged at the front end of the horizontal plate, and a second clamping plate opposite to the first clamping plate is arranged at the rear end of the horizontal plate; the first clamping plate and the second clamping plate are connected with the nut on the lead screw through the clamping transmission mechanism; a first sensor and a second sensor are arranged at the upper and lower ends of the lead screw respectively; the controller is arranged in a control box, and an operation panel is arranged on the surface of the control box. The driving motor, the clamping transmission mechanism and the two sensors are electrically connected with the controller. The requirements of front and back machining equipment for the height of the conveying device are both met through the lifting mechanism and the clamping transmission mechanism, and an electronic element is stably transferred from the front machining equipment to the back machining equipment.
Owner:SUZHOU YUANSHUO PRECISION MOLD

Electric climbing device and application device thereof

The invention discloses an electric climbing device which comprises a casing, a work rope, a rope pressing mechanism, a hanging ring, a motor and an electric motor manipulator, wherein a rope-rolling disk is fixedly arranged in the casing; the casing body is provided with a rope inlet and a rope outlet; the work rope enters the inner part of the casing from the rope inlet, and rounds the rope-rolling disk to pass through the casing from the rope outlet; the rope pressing mechanism is pressed by the work rope at the rope inlet and simultaneously exerts pressing force on the work rope on the rope-rolling disk; the hanging ring is fixedly arranged on the casing; an output shaft of the motor is connected with the rope-rolling disk in a coupling mode; and the electric manipulator controls positive rotation, reverse rotation and stoppage of the electric motor. The invention has the advantages that firstly, the stroke is not limited, secondly, a load pressing rope is absolutely reliable, thirdly, the load pressing rope and run are automatically converted by run commands of the electric motor, fourthly, the work rope executes dual functions of brake of a safety pressing rope at any time, fifthly, the load pressing rope belongs to soft brake without impact, is absolutely reliable, and can brake load for a long time, and sixthly, the work rope has very little abrasion and long service life.
Owner:CCCC FOURTH HARBOR GEOTECHN ENG +2

Electric truck facilitating loading and unloading

The invention discloses an electric truck facilitating loading and unloading. The electric truck comprises a front frame, a rear frame and a connecting frame, wherein the front frame and the rear frame are fixedly connected through the connecting frame; rear wheels are installed on the bottom of the rear frame, lifting devices are fixedly arranged in the rear frame, at least two longitudinal grooves are formed in the upper surface of the rear frame, rolling belts are arranged in the grooves in a vertically-rolling mode, the bottoms of the rolling belts are connected with the lifting devices, ball grooves are formed in the upper surfaces of the rolling belts, rolling balls are restrained in the ball grooves, and the distance between the center of each rolling ball and the upper surface of the corresponding ball groove is smaller than the radius of the rolling ball, so that when cargoes are loaded, the lifting devices drive the rolling belts up, the upper surfaces of the ball grooves coincide with the upper surface of the rear frame, and the cargoes can roll on the rolling balls, so that friction force is greatly reduced, and during transportation, the lifting devices make the rolling belts down, and the cargoes are in contact with the upper surface of the rear frame again, so that friction force is increased, and then the cargoes do not slide during transportation. Therefore, loading and unloading of the cargoes are conveniently achieved.
Owner:WEIFANG HONGSHIXING MACHINERY PROCESSING CO LTD

Platform hand truck for agricultural transportation

The invention discloses a platform hand truck for agricultural transportation. The platform hand truck comprises a hydraulic lifter; the hydraulic lifter is mounted at the upper end of the middle of the leftmost end of a base; a push rod is arranged at the upper end of the hydraulic lifter and penetrates through the hydraulic lifter transversely; and a locking nut is arranged on the outer wall ofthe middle of the rear portion of the hydraulic lifter. A fastening plate is additionally arranged on the rear portion of the base, T-shaped sliding blocks are arranged at the lower ends of the fastening plate, and two T-shaped sliding grooves are formed in the base, so that the T-shaped sliding blocks drive the fastening plate to slide in the T-shaped sliding grooves, accordingly the fastening plate can clamp materials placed on the base, thus, the platform hand truck can drive the materials to pass through multiple pavements stably without worrying about sliding-down of the materials, and the economic loss caused by sliding-down of the materials is reduced; and a traditional totally-fixed type connection column at the lower end of the push rod is improved into a two-section type connection column capable of being adjusted in length, so that the purpose that the length of the connection column at the lower end of the push rod can be adjusted freely is achieved.
Owner:王克

Cerebral infarction treatment nursing bed

The invention provides a cerebral infarction treatment nursing bed comprising a front bed frame. Two front bed legs are fixedly mounted on both sides of the lower surface of the front end of the frontbed frame. The front bed frame comprises two sets of side board frames and a bed board frame. When the length of the nursing bed needs to be increased, a trigger button is pressed to eject a clampingboard and withdraw a rear bed frame. When the rear bed frame is withdrawn to a suitable position, a limiting block is clamped by a limiting groove. After a supporting board is fixed, the height of its upper surface is equal to the height of the surface of the bed board frame. Therefore, the rear bed frame is limited to slide towards the interior of the front bed frame. A rotating board is rotatedto make the supporting board face upward and fix the supporting board and the rotating board. When there is no need to increase the length of the nursing bed, a positioning rod is withdrawn, and thesupporting board faces downward so as to fix the rotating board and the supporting board. A push handle is pushed to drive the rear bed frame to the front bed frame. The clamping board is rotated to make an insertion rod inserted into a clamping groove. And a wedge-shaped clamping block is connected with an L-shaped clamping block in clamp mode, and the rear bed frame is fixed.
Owner:烟台市莱阳中心医院

Expansion sleeve joint with double hook shaped thread connection

The invention relates to an expansion sleeve joint with double hook shaped thread connection for the connection of integral joint expansion sleeves in oil and gas well engineering. Two-end structures of a male thread joint and a female thread joint correspondingly form sealed cabins, the sealed cabins are sealed by two fastened and inversely fastened bowl shaped rubber obturating rings, the deflection angle of a first hook surface of a hook shaped contact surface correspondingly formed by a single hook shaped thread of the male thread joint and a single hook shaped thread groove of the female thread joint is 15 DEG, the deflection angle of a second hook surface is 28 DEG, the height of the second hook surface is 25 to 30 percent of that of the thread, the rounding radius between the first hook surface and the second hook surface is 0.5 mm, the deflection angle of the reverse side of the thread is 5 DEG, the conicity of the thread is 1:23-1:25, and a hook tip of a second hook of the thread has an arc surface. The expansion sleeve joint has the close occlusion of double hook shaped internal and external threads, eliminates stress concentration, has high strength, has double hook shaped multiple metal-metal sealing and metal-rubber-metal sealing, and has the characteristics of integral sealing, strength uniformity of an expansion joint and the like.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Bathroom cabinet having foot pad base with adjustable height

The invention discloses a bathroom cabinet having a foot pad base with adjustable height. The bathroom cabinet comprises a wall body, a cabinet body is fixed on the wall surface of the wall body, a basin is fixed on the top surface of the cabinet body, lateral moving through grooves are formed in the left and right sides of a bottom plate of the cabinet body, moving supporting plates are fixed onthe front portion and the rear portion of the top surface of the bottom plate of the cabinet body at the lateral moving through grooves, the two ends of a transverse screw are hinged to the two movingsupporting plates, a main driving motor is fixed on the outer side wall of the moving supporting plate at the rear side, an output shaft of the main driving motor is a spline shaft, the spline shaftis inserted into a spline hole in the rear end of the transverse screw, moving blocks are screwed into the corresponding transverse screw, and the moving blocks are inserted in the corresponding lateral moving through grooves. According to the bathroom cabinet, the foot pad base can be automatically extended out of the lower portion of the cabinet body, the height of a lifting board can be adjusted according to the different heights of children, a child can stand on the lifting board conveniently during the face washing, the sliding of the bathroom cabinet is prevented, and the bathroom cabinet is safe and has good effect.
Owner:DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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