51results about How to "Does not hinder rotation" patented technology

The invention discloses a novel shaft-end sealing structure of a concrete mixer. A movable sealing ring sleeved on a mixing shaft is arranged on a portion, which is located on the inner side of a mixing barrel, of the mixing shaft, a fixed sealing ring sleeved on the mixing shaft is arranged on the mixing barrel, the movable sealing ring and the fixed sealing ring are pressed by a spring which is arranged on the mixing shaft or the mixing barrel and axially stretches and retracts on the mixing shaft, so that an end surface of the movable sealing ring hermetically contacts with an end surface of the fixed sealing ring, and both end surfaces, which contact with each other, of the movable sealing ring and the fixed sealing ring are located on the inner side of the mixing barrel. As the movable sealing ring and the fixed sealing ring are pressed by the spring so that surface contact sealing is formed, the sealing contact surfaces are located in the mixing barrel, sand in the mixing barrel cannot enter a portion, which is connected with the mixing barrel, of the mixing shaft and a portion which is located out of the mixing barrel, and a sealing effect is good.

The invention relates to a crusher, comprising a crushing device and a driving device; the crushing device comprises an outer plate, an inner plate and a bottom plate; the outer plate, the inner plate and the bottom plate are enclosed into a horizontal annular crushing chute; the outer plate is composed of a The first motor drives and rotates; the inner plate is formed by connecting a plurality of pressing plates in sequence through elastic connecting bodies; the inner side of the outer plate in the annular breaking trough is provided with crushing tines; A turntable, a plurality of pistons facing the pressure plate respectively and sleeves slidingly matched with the pistons; one end of a first connecting rod is hinged on the piston, and the other end is hinged on the turntable; one end of a second connecting rod is connected to the piston, The other end is connected to the pressing plate; the turntable is driven to rotate by a rotating shaft eccentrically arranged on the turntable; the crusher can significantly improve the energy utilization rate, with small vibration, low noise, and even crushing.

The present invention relates to the technical field of biological teaching, especially to a specimen display box for biological teaching The box comprises a pedestal, a transparent upper cover is arranged at the upper end of the pedestal, a U-shaped base is arranged at the middle portion of the upper end of the pedestal, the upper end of the U-shaped base is provided with circular slide rails, the U-shaped base is internally provided with a motor, the output shaft of the motor is provided with a support plate, siding columns are arranged at the lower end of the support plate, the support plate is provided with a transparent glass dish, the transparent glass dish is provided with spacing mechanisms comprising L-shaped plates, one side of each L-shaped plate is provided with one bolt, one end of each bolt is provided with one baffle, one circular trough is arranged at the internal portion of one end of each bolt, one pressure reduction plate is arranged at the internal portion of each circular trough, the outer side of each circular trough is provided with one annular groove, each annular groove is internally provided with one slide block, and springs sleeve the outer sides of the bolts between the baffles and the pressure reduction plates. The specimen display box for biological teaching has an omnibearing display function and has a sterilization drying effect.

The present invention discloses a sleeve assembly and an ultrasonic knife. The sleeve assembly comprises an outer sleeve, an inner sleeve, an ultrasonic guide rod, a clamping arm, a bent pipe fitting and a stretching assembly, and the outer sleeve is provided with a bent part which is driven by axial movement of the bent pipe fitting to be bent; a tool bit of the ultrasonic guide rod extends out of the far end of the outer sleeve and forms a clamping mechanism capable of being opened and closed with the clamping arm, the stretching assembly drives the outer sleeve and drives the clamping arm to move axially, and in the moving process of the clamping arm, after the near end of the clamping arm is limited by the end face of the far end of the bent pipe fitting, pivot rotation is generated at the same time to achieve clamping of the clamping mechanism; and the bent pipe fitting, the stretching assembly and the ultrasonic guide rod are in flexible connection with the corresponding positions of the bent part, and the outer sleeve can drive the clamping arm to rotate around the axis of the ultrasonic guide rod through autorotation in the bending or straight state. According to the integrated sleeve assembly, opening, closing and autorotation of the clamping mechanism and bending of the sleeve assembly can be achieved at the same time, and the use flexibility and control precision of the clamping mechanism are improved.

The invention discloses an anti-falling gripper for the robot, and belongs to the technical field of robots. The robot can adapt to objects in different shapes by arranging multiple clamping modules, clamping blocks are pushed through electric rods to clamp the objects, friction blocks are used for making contact with the clamping blocks to push sliding rods to move backwards, electrorheological fluid and first springs in the clamping module are extruded, the electrorheological fluid is controlled to be solidified through a controller, the clamping module is kept stable, meanwhile, the situation that an object is damaged due to too large clamping force is avoided, unstable current is generated by a radiation metal rod and a conductor rail through rotation of a ball in a spherical cavity, and therefore whether the clamping module is clamped or not is judged; and after the controller controls the electrorheological fluid to be liquefied, repulsive force is generated in cooperation with an electromagnet, so that the clamping module is tightly attached to the object, and the stability of the device is further improved.

The invention relates to a cultivation planting method for scrophularia ningpoensis. The method comprises the steps of preparing seedbeds and preparing a seedbed frame; and the method specially comprises the following steps: a, performing preparation at the earlier stage: selecting a bottom plate and a pair of clamping plates, and forming through holes in each clamping plate; and preparing supporting plates, limit blocks, fixing blocks, sliding rods, sliding sleeves, springs, connecting rods and the seedbeds; b, installing the bottom plate and the clamping plates; c, installing the supportingplates: enabling each supporting plate to be rotatably connected in the corresponding through hole, and installing each spring in the corresponding through hole; d, connecting the supporting plates: installing the corresponding sliding rod on one end, far away from placing space, of each supporting plate, and installing the corresponding sliding sleeve on each sliding rod; installing the corresponding fixing block on one end, far away from the placing space, of each supporting plate; and enabling two ends of each connecting rod to be separately and rotatably connected with the corresponding fixing block and the corresponding sliding sleeve which are located on adjacent supporting plates; and e, installing the limiting blocks. The method provided by the invention realizes an effect that a plurality of layers of seedbeds can be placed on the seedbed frame, thereby improving a space utilization rate.

The anchor has a shaft (1) and a pivoting head (2) with flukes. Two spaced pivot points are provided, which are eccentrically arranged. The centre of mass (7) of the anchor head lies between and over both pivot points, when the anchor head is vertically on the anchor shaft.

The invention discloses a manual box nailing machine facilitating angle adjustment and belongs to the field of box nailing machines. The manual box nailing machine facilitating angle adjustment comprises a bottom plate. A limiting sliding groove is formed in the top of the bottom plate. A connecting sliding block is connected into the limiting sliding groove in a sliding manner. The top of the connecting sliding block extends to the top of the limiting sliding groove. A fixed connecting block is fixedly connected to the top of the connecting sliding block. By pushing a body of the box nailingmachine, the body of the box nailing machine is moved to the right side of the bottom plate, then an inserting ring is pushed upwards, the body of the box nailing machine is rotated, therefore the machining angle direction of the body of the box nailing machine is changed conveniently, the box nailing machine can change the machining angle of the box nailing machine according to the use requirement of users, the adaptive capacity of the box nailing machine is improved, the application range of the box nailing machine is enlarged, when the position of a paper box is not conducive to machining,the machining position can be changed for machining the paper box, a user can use the machine conveniently, and the production efficiency is improved.

The invention discloses a publicity board for public management, and belongs to the field of publicity for public management. The publicity board for public management solves the problems that existing publicity boards for public management are mostly located outdoors, dust is easily attached to the surfaces of the publicity boards, and the publicity boards are usually at high positions and are not easily cleaned. When the publicity board is in use, the publicity board can be cleaned while running, and great convenience can be brought to management staff; moreover, a stereoscopic triangular structure is adopted for the publicity board, the publicity board has one more side than an existing publicity board, more publicity slogans can be displayed, the replacement frequency is reduced, and the management difficulty of the management staff can be reduced; the full-automatic structure is adopted for the overall device, only mounting work is needed, the publicity board does not need to be taken care of in the later period, and the current management requirement can be better met.

The invention provides a cloth winding mechanism of a cloth printing machine, and belongs to the technical field of printing machines. The cloth winding mechanism includes a base, a pair of first supporting plates arranged at the upper portion of the base and two cloth winding rollers arranged between the first supporting plates, each cloth winding roller comprises a cloth winding shaft, a supporting shaft connected to both ends of the cloth winding shaft and a fixing shaft connected to the supporting shaft, rotating shafts are arranged at the upper portions of the first supporting plates in apenetrating mode, first fastening bolts for fixing the rotating shafts are arranged at the tops of the first supporting plates, and supporting plates are fixedly connected with the rotating shafts; and transverse U-shaped fixing grooves are formed in the two ends of each supporting plate, the fixing shafts are mounted in the fixing grooves, second fastening bolts for fixing the fixing shafts arearranged above the fixing grooves, sliding seats are further arranged on the base, first vertical hydraulic cylinders are arranged at the upper parts of the sidling seats, the top ends of the first vertical hydraulic cylinders are connected with supporting blocks, and damping grooves matched with the supporting shafts in a clamped mode are formed in the supporting blocks. The cloth winding mechanism can support the cloth winding rollers and prevent the cloth winding rollers from shaking up and down, the two end wear is small, the cloth winding is neat, and the long time stopping for replacingthe cloth winding rollers does not need.

The invention discloses a splicing component convenient to splice. The splicing component comprises a plurality of first square panels, a plurality of first strip-shaped connecting members, and a plurality of second strip-shaped connecting members, wherein the square of each first square panel has a length of L and a thickness of D, wherein L is greater than D; the length L1 of each first strip-shaped connecting member satisfies an equation that L1=L+2*D, wherein the cross section of the first strip-shaped connecting member is a square with the side length D; the length L2 of each second strip-shaped connecting member satisfies an equation that L2=L, wherein the cross section of the second strip-shaped connecting member is a square with the side length D; a first clamping column is arranged at the center of each of four side walls of each first square panels; a first clamping groove allowing each first clamping column to be clamped in and out is arranged at the center of each of four side walls of each first strip-shaped connecting member, wherein the length of each first clamping groove is L1; a second clamping groove allowing each first clamping column to be clamped in and out is arranged at the center of each of four side walls of each second strip-shaped connecting member, wherein the length of each second clamping groove is L2. The splicing component is less in type, reasonable in the shape, length and thickness design, and convenient to cooperate, so as to be convenient to splice.

The invention relates to the field of roll molding, in particular to waterproof roll molding equipment. The waterproof roll molding equipment comprises a machine body, a discharge shell, a shell body,a fixing mechanism, a pressing mechanism, a limiting mechanism, a first guide mechanism, a second guide mechanism and a clamping mechanism; through cooperative use of the fixing mechanism and the pressing mechanism, after rolls are molded, films are fixed on the fixing mechanism, and the rolls and the films pass through a first pressing roller and a second pressing roller; the positions of the rolls and the films are limited through limiting rings, so that the rolls are compounded with the films during molding to reduce procedures, and the production efficiency is improved; and through a guidance effect of the first guide mechanism and the second guide mechanism, the positions of the rolls and the films are limited, and the rolls and the films are guided, so that the rolls and the films conveniently correspond in position to prevent the position deviation caused by deviation of the two.

The present invention relates to the field of mechanical devices, in particular to an automatic orientation balance mechanism for a disc-shaped structure, which includes a steel ball anti-slip piece, a steel ball and a steel ball base; the steel ball base is an engineering plastic cylinder as a whole; the inside of the cylinder is A number of grooves are provided; the grooves are arranged parallel to the generatrix of the cylinder, and an arc-shaped chamfer is arranged on the inner wall of the bottom of the cylinder, and the radian of the arc-shaped chamfer is equal to the arc of the surface of the steel ball; the steel ball It is arranged above the steel ball base, and the steel ball anti-off sheet is fixed above the steel ball by screws; the steel ball anti-off sheet is sheet-shaped, and is provided with a steel ball hole and a fixing hole, and the diameter of the steel ball hole is smaller than the diameter of the steel ball. The invention has the advantages that the mechanism can maintain the balance of the large disk, increase the load capacity of the large disk, and at the same time not hinder the rotation of the disk, and has a simple structure and is convenient to use.

The invention discloses an explosion-proof solar water heater. The explosion-proof solar water heater comprises a cold water tank, a hot water tank, a solar heat collector and a bracket, wherein the solar heat collector is arranged on the bracket, and the two ends of the solar heat collector are connected with the cold water tank and the hot water tank correspondingly. The explosion-proof solar water heater is characterized in that the hot water tank is arranged at the upper end of the bracket, the cold water tank is arranged at the lower end of the bracket, the solar heat collector comprisesa plurality of solar heat collecting pipes, the upper end of each solar heat collecting pipe is inserted into the hot water tank, and the lower end of each solar heat collecting pipe is connected withthe cold water tank through a pump.

The invention relates to an emergency transfer bed, which can effectively solve the problems of incomplete disinfection and low efficiency of an existing transfer bed. According to the technical scheme, the transfer bed comprises a horizontal rectangular frame, an upper bed plate and a lower bed plate are arranged in the rectangular frame, each bed plate is formed by hinging two flat plates, the bed plates can protrude outwards from the joint positions of the flat plates, the bed plates can be supported when being horizontal, when protruding outward, the bed plates can be driven to rotate around a central axis, a material box with an upward opening is arranged below the bed plates and is arranged in the length direction of the bed plates, a plurality of connecting rods are hinged to the left side and the right side of the material box respectively, a plurality of spraying pipes perpendicular to the connecting rods are evenly distributed on the connecting rods on the same side at intervals in the length direction of the connecting rods, spraying heads are arranged on the spraying pipes, the material box is provided a water pump which can pump water to the spraying pipes, the connecting rods on the left side and the right side are fixed through a pull rope, and the pull rope can be pressed and the water pump can be driven to pump liquid when the lower bed plate is changed into a V shape.

The earphone comprises a head-mounted rod, a protective pad is arranged on the lower surface of the inner side of the upper end of the head-mounted rod, a connecting shaft is fixedly mounted on the inner side of the lower end of the head-mounted rod, an upper plate is arranged on the inner side of the upper end of an outer mounting plate, and a lower plate is fixedly mounted on the lower portion of the inner side of the outer mounting plate; a supporting column is connected to the upper end of the right side of the lower plate, a mounting groove is formed in the joint of the lower side of the clamping plate and the lower plate, a limiting rod is fixedly mounted on the upper end surface of the left side of the lower plate, players are arranged on the inner sides of a mounting frame and a buckle, and the bottom of the lower end of a connecting wire is connected with a plug; and a fixing frame is arranged in the inner mounting plate, and the outer side surface of the fixing frame is connected with a connecting spring. According to the single-line and double-line interchangeable earphone capable of being stored into the single-line earphone by the double-line earphone, the line can be adjusted, and the earphone can be worn and used in a head-wearing mode or an in-ear mode.