67results about How to "Less prone to deflection" patented technology

The invention discloses a device for taking and placing a chaton automatically, which comprises two mechanisms for taking and placing the chaton, an up-down moving mechanism and a transmission mechanism, wherein the two mechanisms for taking and placing the chaton have the same structure and are arranged symmetrically to the axes of the device. The device can realize continuous taking and placing of the chaton in the condition of not needing complicated control; the chaton is not easy to damage when the device takes and places the chaton, and is not easy to deviate when the device places the chaton; and the device has simple structure and high reliability, and is suitable to be generally used in the ornament industry.

The invention belongs to the technical field of metal plate production equipment, and particularly relates to a laser cutting device. The laser cutting device is provided with a main lathe bed (8), afeeding machine (3), a clean material cutting area (4) and a rotary workbench (5), wherein the feeding machine (3), the clean material cutting area (4) and the rotary workbench (5) are arranged from back to front; the feeding machine (3) is provided with a feeding rail (314), a feeding crossbeam (310) and a floating clamp (312); the clean material cutting area (4) is provided with a clean materialcutting support bar (41), a clean material cutting servo motor (42) and a stop device; and the rotary workbench (5) is provided with a rotary support bar (51), a rotary servo motor (52), a chain support rail (53) and a supporting bracket (54). According to the laser cutting machine, the feeding machine can achieve high-precision positioning and automatic deviation rectifying through plate limiting and can achieve automatic feeding; a plate is accurately positioned by the clean material cutting area so to be cleaned and cut and is then conveyed to the rotary workbench to be cut into a workpiece; and laser cutting based on automatic feeding and discharging is achieved, and the production efficiency is improved.

The invention discloses a filter plate and high-pressure piston type solid-liquid separation device made of the same. Vertical and horizontal staggered projecting particles are arranged on the surfaceof the filter plate facing filtered objects, and water passing through holes penetrate the filter plate and are formed among the projecting particles. The high-pressure piston type solid-liquid separation device comprises a frame, a filter component, a piston oil cylinder, a lifting oil cylinder, a guide rod, an oil pump and a control system, the lifting oil cylinder drives a filter cylinder to vertically move along the guide rod, the piston oil cylinder drives a piston to vertically move along the filter cylinder, a first filter plate body and a second filter plate body are provided with thefilter plate, and the projecting particle surfaces of the first filter plate body and a second filter plate body are oppositely arranged. By the aid of the scheme, the extruding surface of the filterplate is provided with point-like distributed projecting particles, the contact areas among the filter plate and the filtered objects are greatly increased, more moisture can be extruded by the filter plate under the same extruding force, and solid-liquid separation effects are good.

The invention discloses an Internet of Things intelligent gas meter speed reducer output end installation system which comprises an index plate, the index plate can rotate clockwise around the axis of the index plate, and a plurality of clamps used for containing a speed reducer shell are further arranged on the index plate. The system further comprises a movable sealing ring assembling mechanism, a movable sealing ring plug assembling mechanism and a swing frame assembly assembling mechanism. The movable sealing ring assembling mechanism is used for assembling a movable sealing ring into the speed reducer shell. The movable sealing ring plug assembling mechanism is used for assembling a movable sealing ring plug into the speed reducer shell provided with the movable sealing ring. The swing frame assembly assembling mechanism is used for assembling a swing frame assembly into the speed reducer shell provided with the movable sealing ring plug, and the movable sealing ring assembling mechanism, the movable sealing ring plug assembling mechanism and the swing frame assembly assembling mechanism are sequentially distributed on the circumferential face of the index plate in the rotating direction of the index plate. According to the Internet of Things intelligent gas meter speed reducer output end installation system, automatic assembly of the output end of a speed reducer can be achieved, and the assembly efficiency and the assembly quality of the speed reducer are improved.

The invention provides a novel bus duct. The top of a bus bar is provided with a cover plate, the bottom of the bus bar is provided with a bottom plate, the two sides of the bus bar are provided with lateral plates, the two ends of a cover plate body are respectively provided with a dustproof mechanism, the two ends of the bottom of the cover plate body are respectively provided with a lateral plate positioning mechanism, the center of the top of the cover plate body is provided with a reinforced protrusion portion, the center of the bottom of the cover plate body is provided with a bus positioning groove, a plurality of positioning edges are arranged in the bus positioning groove, the tops of the lateral plates are embedded into lateral plate positioning grooves, the lateral plates and the cover plate can be fixed through the lateral plate positioning grooves, the bottoms of the lateral plates are provided with flangings outwards, and the flangings are fixed to the top of the bottom plate through bolts. The bus bar comprises a plurality of buses, the buses are installed in the bus duct through the bus positioning groove in the cover plate, and the buses can be positioned in a spaced mode through the positioning edges. The novel bus duct is good in dustproof effect, convenient to install, simple in operation, high in deformation resistant capacity and high in safety coefficient; heat dissipation can be conducted conveniently.

The invention discloses a detonation type tear bomb. The detonation type tear bomb comprises a cartridge case, a primer, a propellant, a push disc, a projectile body, delay tubes, an explosion expanding explosive, OC stimulating powder, stimulating powder pushing discs, a guide rail, a blasting plug and a sealing identification pad, wherein the primer is riveted to the axis of the bottom end faceof the cartridge case, the push disc is used for pushing the projectile body to move, the projectile body comprises a lower projectile body and an upper projectile body, the delay tubes comprise a first-stage delay ignition tube and a second-stage delay ignition tube, the explosion expanding explosive is ignited and used for pushing the upper stimulating powder pushing disc and the lower stimulating powder pushing disc to move towards the two sides and are punched out of the blasting plug so as to achieve rapid spraying of the OC stimulating powder, and the sealing identification pad is used for sealing the cartridge case. According to the detonation type tear bomb, the design is ingenious, the situations that when the propellant is invalid or is subjected to neglected loading, the primerdirectly ignites the explosion expanding explosive so as to induce the bore premature, spraying is completed, the stimulating powder pushing discs are cut off, no flames are sprayed out, then accidental fire disasters or explosion accidents can be effectively avoided, the safety performance is relatively high, relatively large explosion sound is generated at the moment when the blasting plug is punched out, the deterrent performance is good, emission is carried out through an anti-riot gun, and the range is relatively long.

The invention discloses a grass trimmer and a grass trimming head thereof. The grass trimmer comprises: a grass trimming head; a motor which drives the grass trimming head to rotate; in a cutting mode, the motor rotates forwardly to drive the grass trimming head to rotate in one direction; in an automatic winding mode, the motor reversely rotates to drive one of a spool or shell component to rotate in the opposite direction relative to the other; the grass trimming head comprises a shell component which is formed with an outer threading hole; the shell component comprises a shell and a threadoutlet buckle sleeve; the shell forms a shell cavity; the thread outlet buckle sleeve is fixed to the shell and forms the outer threading hole; the spool is provided with an inner threading hole through which a grass trimming rope penetrates; the inner threading hole is arranged in a flange part; and the distance from the thread outlet buckle to the flange part is smaller than the maximum outer diameter of the grass trimming rope. According to the invention, the grass trimming rope can be automatically wound to the spool under the action of the motor, the grass trimming rope can be directly inserted into the inner threading hole from the outer threading hole, deflection is not easy to occur, and the installation process of the grass trimming rope is convenient and fast.

The invention belongs to the field of elevators, and particularly relates to an elevator safety clamp device. The device comprises a clamp body and a wedge block assembly arranged in the clamp body, wherein the clamp body comprises a top plate, two side plates, a bottom plate and a middle guide plate which are sequentially arranged from top to bottom; the upper end of each side plate is fixedly connected with the top plate and the lower end of each side plate is fixedly connected with the bottom plate; the front sides of the top plate, the bottom plate and the middle guide plate are correspondingly provided with a guide rail channel used for allowing an elevator guide rail to pass through in the up-down direction; the middle guide plate is arranged between the two side plates; the part, corresponding to the guide rail channel, of the middle guide plate is provided with a guide opening, and the caliber of the guide opening is larger than the guide rail channel; and the wedge block assembly comprises two horizontal wedge blocks and two up-down wedge blocks symmetrically arranged on the two sides of the guide rail channel. According to the elevator safety clamp device, an up-down braking structure is started in emergency, so that the up-down wedge blocks slide upwards along the horizontal wedge blocks to clamp the guide rail passing through the guide rail channel so as to realize braking.

The invention relates to the technical field of petroleum drilling equipment and discloses a quick moving and assembling rig. The quick moving and assembling rig comprises an equipment module, a slurry module and a power module, wherein the equipment module comprises a derrick and a base; the slurry module comprises a slurry tank and a slurry pump; the derrick is sequentially divided into four segments from bottom to top; a front supporting leg and a rear supporting leg are arranged on two opposite sides of the bottom of the first segment of the derrick; each segment of the derrick is vertically divided into an inverted-L-shaped rear segment and an inverted-L-shaped front segment; during connection of two segments of the derrick, the rear segments are connected through hooks, and the front segments are connected through pin ear plates; and the base consists of base modules, wing-room modules, an independent winch module, a pipe setback and beam module, a turntable and turntable independent driving beam module and base accessories, and matched structural part quick mounting, connecting and locking devices are arranged at the connecting parts of the base modules, the wing-room modules, the independent winch module, the pipe setback and beam module and turntable and turntable independent driving beam module. The quick moving and assembling rig can be mounted and dismounted conveniently and quickly, can not only meet the road transportation rule requirements to be moved in long distance but also directly move between short-range well sites on the whole, and therefore is improved in transition efficiency.

The invention relates to a lead screw transmission structure for a target plate three-way confining press. The structure comprises a support frame, a driving motor, a lead screw nut pair and a drivingplate; the support frame is fixedly mounted on a frame of the target plate three-way confining press; parallel guide rail grooves are formed in the support frame; the lead screw nut pair is mounted in the support frame through a shaft base; the driving motor is mounted on the frame at the left end of the support frame, and is connected with a lead screw of the lead screw nut pair through a speedreducing mechanism; the driving plate is mounted in the guide rail grooves of the support frame, and is operated in the guide rail grooves; the bottom surface of the driving plate is fixedly connectedwith a connecting plate of the lead screw nut pair; and the right side end of the driving plate is hinged with a loading plate of the confining press through a pin shaft. The structure has the following beneficial effects: the structure is simple; the deflection is easily generated in transmission; and the separation of the transmission structure from the loading plate can be realized in the experimental process to effectively prevent damage of the transmission structure by the blasting vibration.

The invention discloses a spherical pipe connector. The spherical pipe connector comprises a pipe connector body; the pipe connector comprises a sphere; the sphere is provided with an encircling pipe and a hubbed flange; the hubbed flange is used for being connected with a perforating and sealing equipment; the encircling pipe is used for encircling pipelines being continuously used for carrying out perorating and sealing; the sphere comprises an upper semi-sphere and a lower semi-sphere; encircling-pipe upper half portions are arranged at the two ends of the upper semi-sphere, and encircling-pipe lower half portions are arranged at the two ends of the lower semi-sphere; the encircling-pipe upper half portions and the encircling-pipe lower half portions are combined to form the encircling pipe; connecting positions of the upper semi-sphere and the lower semi-sphere are fixed through bolt assemblies respectively; a branch connecting pipe of the spherical pipe connector can be horizontally arranged on the sphere, is located in the same horizontal plane with a main pipeline and can also be arranged at the bottom of the sphere; further having perorating performance and sealing performance, the spherical pipe connector can save half operation cost and operation time and can be applied to pipelines with all kinds of hole diameters and burying depths and improve perforating or sealing operation safety under the conditions that pipelines are continuously conveyed.

The invention discloses a composite prefabricated external wall structure of a fabricated building and a construction method of the composite prefabricated external wall structure and belongs to the field of fabricated buildings. According to the technical scheme, the composite prefabricated external wall structure is characterized by comprising a plurality of wallboards arranged in the vertical direction; a cross beam is arranged between every two adjacent wallboards; a waterproof tank is arranged at the lower end of each wallboard; the waterproof tank penetrates through the inner lateral side of each wallboard; the upper end of each cross beam is provided with a square section, the upper end of each square section abuts against the top face of the corresponding waterproof tank of the corresponding upper wallboard; and the upper ends of the cross beams abut against the lower ends of the upper wallboards. According to the composite prefabricated external wall structure, the structure is reasonable, the square sections are arranged at the upper ends of the cross beams not initially set, then the distance between the upper end faces of the square sections and the upper end faces of the cross beams is determined, the lower end faces of the wallboards can abut against the upper ends of the cross beams when the wallboards are mounted; and the top faces of the waterproof tanks can abut against the upper end faces of the square sections, and then the wallboards are not likely to generating skewing, so that the wallboards are more stable in the use process.

The invention discloses a ventilating duct construction method. According to the method, a construction frame body and a clamping and fixing assembly installed on the lower side of the construction frame body are involved, wherein a containing cavity is formed in the end surface of the bottom of the construction frame body, a cutting machine body is installed in the containing cavity in a slidingfit mode, convex blocks are bilaterally symmetrically and fixedly arranged on the end surface of the top of the cutting machine body, a buffering elastic piece is installed on the convex blocks, a piston rod is fixedly arranged in the right center of the top end of the buffering elastic piece, the top end of the piston rod is in power fit connection with an air pressure cylinder, the air pressurecylinder is fixedly arranged in the top wall of the containing cavity, concave cavities are bilaterally symmetrically formed in the positions, on the left side and the right side of the containing cavity, in the bottom end surface of the construction frame body, vertical transmission cavities are arranged in the positions, on the inner sides of the containing cavity, in the construction frame bodyin an up-and-down extension mode, the tail ends of the tops of the vertical transmission cavities communicate with transverse transmission cavities extending leftwards and rightwards, and a driving motor is fixedly arranged between the transverse transmission cavities on the left side and the right side.

The invention belongs to the technical field of casting, and relates to a steel structure sand core, a manufacturing method of the steel structure sand core and a bolt hole casting method. The steel structure sand core comprises a sand core body shell, a molding sand filling body and an exhaust hole, and the manufacturing method of the steel structure sand core comprises the steps that steel pipewelding is adopted, molding sand is filled, drying is carried out, and manufacturing of the finished steel structure sand core is finished. The bolt hole casting method adopts the finished steel structure sand core for finishing the casting molding of a bolt hole. According to the bolt hole casting method, the finished steel structure sand core is adopted for finishing the casting molding of the bolt hole. According to the steel structure sand core, during manufacturing, the working procedure is simple, operation is convenient, the manufacturing difficulty is low, and manufacturing is facilitated. During bolt hole casting, the casting quality of a casting can be improved, the construction period can be shortened, the bolt hole position precision is ensured, the later-period grinding workloads of the bolt hole can be reduced, the casting surface quality and the inherent quality of the casting can be improved, the production efficiency of the casting can be improved, and the constructionperiod can be shortened.

The invention relates to a rapid drainage system for a highway road, and relates to the field of road drainage. The rapid drainage system comprises a drainage pipeline, a drainage well lid arranged on the drainage pipeline, supporting rings arranged below the drainage well lid at intervals, a lifting mechanism arranged between the supporting rings and the drainage well lid and used for controlling the drainage well lid to ascend and descend, a flow monitoring switch arranged in the drainage pipeline and used for controlling the lifting mechanism to operate and a filtering mechanism arranged between the supporting rings and the drainage well lid and used for filtering garbage. A mounting groove is formed in the inner side wall of the drainage pipeline, and the supporting rings abut against the interior of the mounting groove. The rapid drainage system for the highway road has the effects that the drainage well is automatically opened and closed according to the rainfall, and accumulated water on the road surface is rapidly drained.

The invention discloses a lathe chuck, and belongs to the field of lathe work of crankshafts for air conditioner compressors. The lathe chuck comprises an adjusting screw, a connecting screw, a positioning screw and a positioning pin, and further comprises an end cover, a base, a front conical ring, a rear conical ring, an adjusting groove, a sliding groove and a chuck body, wherein the rear conical ring is arranged on a bevel at one end of the chuck body in a sleeved mode, the positioning pin is inserted in the adjusting groove in the chuck body after penetrating through the rear conical ring, the front conical ring is arranged on a bevel on the neck portion of the other end of the chuck body in a sleeved mode, the chuck body is placed in the base, the center line of the chuck body coincides with the center line of the base, the end cover is matched with the base and is connected with the base through the connecting screw, the adjusting screw is arranged at the bottom of the end cover, one end of the adjusting screw abuts against the front conical ring, the positioning screw is arranged at the bottom of the base, and the positioning screw penetrates through the base and is inserted in the sliding groove in the rear conical ring. The lathe chuck is used for clamping the shafts to be turned; because the front conical ring, the rear conical ring and the chuck body are combined, concentricity between the chuck and a lathe spindle can be conveniently adjusted, and product concentricity is stable.

The invention discloses a wallboard cutting device not prone to deflection. The wallboard cutting device comprises a cutting table, guide plates, first lifting devices, a mounting frame, a feeding belt, a limiting plate, a pressure sensing device, a cutting machine, a second lifting device and a control device. The two long-strip-shaped guide plates are arranged on the cutting table and are parallel to each other. The length direction of the guide plates is parallel to the moving direction of a wallboard. The opposite sides of the two guide plates are provided with a groove and a protruding strip correspondingly. The groove is matched with a male head of the wallboard. The protruding strip is matched with a female groove of the wallboard. The mounting frame is arranged above the cutting table and connected with one first lifting device. A driving shaft and a driven shaft are mounted on the mounting frame. The driving shaft is connected with a power mechanism. According to the wallboardcutting device not prone to deflection, the groove and the protruding strip are arranged on the guide plates correspondingly, so that the wallboard is not prone to deflection in the moving process, the cutting position is not prone to deflection, and the product quality is guaranteed.

The invention relates to a battery sealing device. The device comprises a binding mechanism, a feeding mechanism and a battery conveying mechanism, wherein the binding mechanism is used for pressing sealing nails into battery holes; the feeding mechanism is used for conveying the sealing nails into the binding mechanism; the battery conveying mechanism is used for conveying and determining a position of a battery; the binding mechanism comprises a nail pressing needle for pressing the sealing nails into the battery holes, a first driving part for controlling the nail pressing needle to move up and down and a clamping part for clamping the sealing nails; the first driving part is connected with the nail pressing needle; one end, far away from the first driving part, of the nail pressing needle penetrates through a through hole formed in the middle of the clamping part and extends out of one end, far away from the first driving part, of the clamping part. The battery sealing device has a simple structure, and is convenient to bind, high in binding efficiency and accurate in binding positioning.