137results about How to "Prevent impact phenomenon" patented technology

The invention discloses a floating-type cushion cylinder, comprising a cylinder barrel, a cylinder bottom head, a piston rod and a piston; wherein, the piston rod is extended back to front; a back end surface of the piston rod is provided with a cushion plunger which is in integral structure with the piston; the cylinder bottom head is provided with stepped holes which are located on the same axes with the piston rod; the diameter of a small hole of the stepped holes is larger than the external diameter of the piston rod, while a big hole of the stepped holes is internally provided with a cushion collar and an internal circlip which is used for preventing the cushion collar from sliding out in a floating manner; the cushion collar is provided with a cushion hole; a cushion gap is formed between the excircle of the cushion plunger and the cushion hole after the cushion plunger is driven by hydraulic oil to enter into the cushion hole. In the invention, the cushion collar is designed in a floating type, so when entering into the cushion hole, the cushion plunger can be automatically centered to reduce the cushion gap, thus having better cushion effect, effectively preventing striking when the cylinder cushion retracts to the cylinder bottom; and the cylinder has fine initiation. The invention is simple in structure and strong in practicability.

The invention provides an eccentricity detection method for a washing machine. The method comprises the following steps: S1, entering a washing procedure; S2, reading the value of an acceleration sensor to obtain an inclination angle of a corresponding outer drum; S3, judging whether the inclination angle of the outer drum is greater than a preset value; S4, if the judgment result is yes, controlling a motor to perform a certain period of time of eccentric treatment, then returning to S3, and if the judgment result is no, entering next step; S5, judging whether the washing time is ended; and S6, if the judgment result is yes, detecting and correcting the inclination angle and then ending the washing procedure, and if the judgment result is no, returning to S2. The method provides an active detection mode, namely whether the washing machine is eccentric during washing and bleaching is detected by utilizing the acceleration sensor, and the corresponding eccentric treatment is performed if the washing machine is eccentric, so that a drum collision phenomenon caused by high eccentricity during dewatering in the washing machine is avoided, and the service life of the washing machine is prolonged.

The invention relates to an auxiliary packing machine for cigarette packet transparent paper and a cigarette packet conveying system thereof. An outlet of a host packing machine is connected with a differential transverse conveying belt moving toward the same direction as cigarette packets, and the rear part of the host packing machine is connected with a cigarette packet down-slide groove plate which is connected with a transverse conveying belt, wherein the rear part of the transverse conveying belt is connected with a turning corner, and the rear part of the turning corner is connected with a barrel-shaped cigarette packet down-slide channel. The auxiliary packing machine is provided with an on-board transverse conveying belt which is connected with an outlet of the down-slide channel and a lifting mechanism, wherein a cigarette pulling mechanism is arranged above the lifting mechanism; a pulling block is jointed with the rear side of the lifted cigarette packet; a joint cycle of the pulling block and the lifted cigarette packet is synchronous with a reciprocating cycle of the cigarette packet lifting mechanism. A conveying mode of vertically lying and longitudinally arraying of the cigarette packets is changed into a conveying mode of transversely lying so as to avoid the hitting of both ends of the cigarette packet during conveying. After entering the auxiliary machine, the cigarette packets are conveyed by the on-board transverse conveying belt, thus, the cigarette packets transversely enter a cigarette pressing mechanism of the auxiliary machine so as to avoid the hitting of one end of the cigarette packet with a positioning plate. The invention can thoroughly avoid the defects of 'empty ends' and interconnection of the cigarettes.

The invention discloses a building material cutting device with a convenient clamping function. The cutting device comprises a bottom box. An electric telescopic rod is fixedly connected with the left side of the top of the bottom box. A transverse plate is fixedly connected with the top of the electric telescopic rod. A first motor is arranged on the right side of the bottom of the transverse plate. A cutting plate is fixedly connected with the output end of the first motor. A second motor is arranged at the bottom of the inner wall of the bottom box. A disc is fixedly connected with the output end of the second motor. An oval groove is formed in the front face of the disc. The two sides of the inner wall of the oval groove are moveably connected with transmission shafts. By arranging the second motor, the disc, the oval groove, the transmission shafts, a connecting rod, a pushing rod, rolling wheels, a connecting block, a pushing plate, a sliding block, a sliding groove, a lifting rod, a spring and a clamping block for coordinate application, the convenient clamping effect is achieved, and the problems that existing cutting devices cannot clamp materials conveniently, consequently, clamping is tedious during application by a user, and lots of time is wasted are solved.

The invention discloses a cutting machine for building materials. The cutting machine comprises a box and is characterized in that an electric telescoping rod is fixedly connected to the left side of the top of the box, a support plate is fixedly connected to the top of the electric telescoping rod, a support rack is fixedly connected to the right side of the bottom of the support plate, a first motor is arranged on the right side of the support rack, and a cutting piece is fixedly connected to the output end of the first motor. The cutting machine has the advantages that by the coordination of the box, the electric telescoping rod, the support plate, the support rack, the first motor, the cutting piece, a second motor, a treaded rod, a threaded sleeve, a connecting rack, sliders, first slide grooves, first connecting blocks, connecting rods, second connecting blocks, a movable plate, slide rods, second slide grooves, a to-be-cut object, a through hole and clamping plates, the cutting machine has a cutting clamping function, and the problems that an existing cutting machine cannot fix materials, is inflexible in operation manner and greatly lowers the work efficiency of a user during cutting are solved.

The invention discloses an anti-drop transfer device, which comprises a bottom box, and supports are fixedly connected to both sides of the bottom of the bottom box, rollers are movably connected to the bottom of the support, and supports are fixedly connected to the back of the bottom box plate, the top of the support plate is fixedly connected with a motor, the output end of the motor penetrates the bottom box and extends to the inside of the bottom box and is fixedly connected with a gear, the bottom of the gear is provided with a first toothed plate, the first The tooth plate meshes with the gear. The present invention is used by setting brackets, rollers, support plates, motors, gears, first tooth plates, slide bars, chute, transmission columns, second tooth plates, sliding sleeves, polished rods, transmission rods, movable grooves and blocks. , so that the cart achieves the effect of preventing objects from falling, and solves the problem that the objects cannot be prevented from falling, and the user needs to be careful of objects falling during use, thereby reducing the practicality of the cart.

The invention discloses an environment-friendly bookshelf capable of adjusting the height of a partition, which comprises a bookshelf body, a support plate is fixedly connected to the inside of the bookshelf body, a movable hole is opened at the bottom of the right side of the support plate, and the top of the inner wall of the bookshelf body The left side of the motor is provided with a motor, the output end of the motor is fixedly connected with the turntable, the bottom of the front of the turntable is movably connected with the first connecting rod through the rotating shaft, and the end of the first connecting rod away from the turntable is movably connected with the first connecting block. In the present invention, a motor, a turntable, a first connecting rod, a first connecting block, a second connecting rod, a second connecting block, a transmission column, a transmission frame, a transmission rod, a transmission plate, a sliding rod, a chute and a partition body are provided. Used together, the environmental protection bookshelf can achieve the effect of adjustable partitions, avoiding the non-adjustable partitions inside the ordinary environmental protection bookcases, resulting in the inability to put too large books, thus wasting a lot of time for users and reducing the practicality of the environmental protection bookcases. sex issue.

The invention discloses a building material grinding machine capable of adjusting the grinding position. The building material grinding machine comprises a bottom plate. A clamping block is fixedly connected with the right side of the top of the bottom plate. An electric telescopic rod is fixedly connected with the left side of the top of the bottom plate. An adjusting box is fixedly connected with the top of the electric telescopic rod. A first motor is fixedly connected with the left side of the top of the adjusting box. By arranging the adjusting box, the first motor, a transmission rod, a first bevel gear, a bearing, a partition plate, a threaded rod, a second bevel gear, a threaded sleeve, a movable rod, a movable hold and a second motor for coordinate application, the problems that existing building material grinding machines cannot adjust the grinding position, consequently, a user needs to adjust the grinding position manually during usage, lots of time is wasted, and the practicability of the building material grinding machines is reduced are solved. The building material grinding machine capable of adjusting the grinding position has the advantage that the grinding position can be adjusted.

The invention discloses a multi-tool path layered and adjustable milling cutter. The multi-tool path layered and adjustable milling cutter comprises a cutter rest sliding support, cutter rests and cutter bodies; a matching location hole is formed in the center of the cutter rest sliding support and cooperatively clamps a chuck of a machine tool; the cutter rest sliding support is provided with at least two adjusting grooves in the radial direction, one cutter rest is installed and fixed inside one adjusting groove, and the cutter bodies are fixedly installed on the cutter rests; the rotation radiuses of the cutter bodies installed on the cutter rests are progressively increased or reduced in the rotation direction. The milling cutter has the beneficial technical effects that Z-direction large-allowance multi-tool path continuous and layered milling can be realized on work-pieces in the surface milling process after tool setting of one time, one-step forming is realized, and the machining efficiency is improved; the diameters of tool paths can be adjusted in the X direction and the Y direction through support sliding grooves according to the sizes of blank surfaces, and the application range is wide; meanwhile, safety grooves and adjusting screws are arranged, and the phenomenon of cutter collision due to different materials and different shapes in the high-speed operation process of the machine tool can be effectively avoided.

The invention provides an aerial photograph central type shutter mechanism and belongs to the technical field of structural design of aerial cameras. The central type shutter mechanism comprises main parts including a high-speed motor, a one-circle clutch, a driving wheel system, two blades and the like. The invention adopts a technical scheme that: the motor is used for driving the two blades to continuously rotate so as to increase speed and efficiency; the one-circle clutch is used for controlling an exposure period; the carbon fiber(M40) blades with enough rigidity and size stability are used so as to solve the problem of narrow air space in an objective lens; and by adjusting the position of a photoelectric pair, the photoelectric pair can precisely transmit pulses at the exposure starting time and the exposure ending time. The central type shutter mechanism has the advantages that: the high-speed motor is combined with the one-circle clutch, so that the problem that the high-speed motor is difficult to control with the instant acceleration and the instant speed reduction is solved; and the rotary speed of the blades is adjusted by changing the rotary speed of the high-speed motor, so that the impact is avoided so as not to damage the central type shutter mechanically and improve image quality. Because an interface of the mechanism is changed, the mechanism can be applied to other cameras.

The invention discloses a rice screening machine convenient to disassemble a screen. The machine comprises a screening box; the internal of the screening box is movably connected with a screen body; a clamping groove is formed in the left side of the screen body; the top of the left side of the screening box is fixedly connected with a clamping box; the top of the left side of the clamping box is fixedly connected with a fixed block; the left side of the fixed block is movably connected with a fixed rod; the bottom of the fixed rod is movably connected with a thread rod; a fixed groove is formed in the top of the thread rod; and the fixed groove is movably connected with the fixed rod. As the clamping groove, the fixed block, the fixed rod, the thread rod, the fixed groove, a bearing, a thread sleeve, a first connecting rod, a second connecting rod, a connecting block and a clamping rod are matched for use, the rice screening machine achieves the effect of more conveniently disassembling the screen, and the problem of wasting a lot of time by users during replacing of the screen due to more complicated disassembly of the screen in a general rice screening machine is effectively solved.

The invention discloses a heat preservation material cutting machine capable of being adjusted in the cutting distance. The heat preservation material cutting machine comprises a bottom plate. An electric telescopic rod is fixedly connected on the left side of the top of the bottom plate. A sleeving case is fixedly connected on the top of the electric telescopic rod. A transmission rod is arranged on the left side of the top of the sleeving case. The bottom of the transmission rod penetrates through the sleeving case and extends to the interior of the sleeving case to be fixedly connected with a first bevel gear. The surface, located inside the sleeving case, of the transmission rod is fixedly connected with a first bearing. By matched using of the transmission rod, the first bevel gear, the first bearing, a second bearing, a thread rod, a second bevel gear, a sliding groove, a sliding block, a supporting block, a telescopic column and a thread hole, the cutting machine can be adjusted in cutting distance, and the problem that a common heat preservation material cutting machine cannot be adjusted in cutting distance, so that when a user conducts cutting, a large amount of time is wasted, and the inventiveness of the cutting machine is reduced is solved.

The invention discloses a multi-purpose folding medical rehabilitation nursing bed. The multi-purpose folding medical rehabilitation nursing bed comprises a bed board, wherein connecting plates are fixedly connected to two sides of the bottom of the bed board, movable plates are movably connected to the bottoms of the front sides of the connecting plates, support legs are fixedly connected to thebottoms of the movable plates, sleeves sleeve the surfaces of the support legs, the tops of the sleeves extend to the surfaces of the connecting plates, and sliding chutes are formed in the tops of two sides of the inner wall of each sleeve. For the multi-purpose folding medical rehabilitation nursing bed, through the matched use of the connecting plates, the movable plates, the support legs, thesleeves, the sliding chutes, slide rods, first springs, brackets, rolling wheels, round plates, clamping rods, second springs and clamping grooves, the problem that the existing medical rehabilitationnursing bed does not have the folding, lifting and moving functions, thus the function of the medical rehabilitation nursing bed is single, is solved, the multi-purpose folding medical rehabilitationnursing bed has the advantages of multiple functions and the like, so that the use of users is facilitated, and the practicability of the medical rehabilitation nursing bed is improved.

The invention discloses a 3D printing back drawing motion track planning method. A back drawing motion track is planned between a first track and a second track of 3D printing. The method includes theprocesses that a printing head moves along the first track, and when the printing head does not reach the end point of the first track, the printing head stops conducting discharging in advance; after the printing head moves to the end point of the first track, the printing head turns around back along the first track to reach the position where discharging is stopped in advance; the printing head moves to the position above the outer side of the starting point of the second track from the position above the first track; and discharging begins when the printing head does not reach the starting point of the second track, the printing head is switched to the starting point of the second track with a downward switching inclined angle and moves continuously along the second track. By means ofthe 3D printing back drawing motion track planning method, the printing head stops discharging in advance and turns round back when back drawing begins, and the phenomena of wire drawing and materialaccumulating of back drawing are avoided; and when back drawing is over, the printing head conducts discharging in advance and is switched to the track of the next segment with the inclined angle, the phenomenon of shortage of the printing track due to delayed discharging of the spray head is avoided, large components can be printed, and the component printing quality is greatly improved.