56results about How to "Easy to control distance" patented technology

The invention discloses a moving sliding table which comprises a first sliding device and a second sliding device, wherein a first sliding platform and a gear are arranged on the first sliding device; the gear is fixed on a frame through a central shaft; a rack is arranged on the first sliding platform; the rack is meshed with the gear; a second sliding platform is arranged on the second sliding device; a screw nut pair is arranged on the second sliding platform; the screw nut pair comprises a screw rod and a nut; the nut is fixed on the second sliding platform; and the screw rod is fixed on the frame. As the rack is arranged on the first sliding platform and is meshed with the gear, the rotation of the gear is converted into the linear motion of the rack, the rotation of the screw rod is converted into the linear motion of the nut, the distance of the linear motion of the first sliding platform fixed with the rack and the second sliding platform fixed with the nut can be conveniently controlled, and the problem of low motion precision of the existing sliding platform due to manual driving is solved.

The invention provides a seeding machine for corn seed breeding, and belongs to the technical field of the agricultural machinery. The seeding machine for core seed breeding comprises a car body, a first ditching mechanism, a fertilization mechanism, a first earthing mechanism, a second ditching mechanism, a seeding mechanism, a second earthing mechanism and a watering mechanism; the first ditching mechanism, the fertilization mechanism, the first earthing mechanism, the second ditching mechanism, the seeding mechanism, the second earthing mechanism and the watering mechanism are orderly arranged on the car body; the second earthing mechanism and the first earthing mechanism have the same structure; the second ditching mechanism is arranged on a side of the first earthing mechanism. By arranging the first ditching mechanism, the fertilization mechanism, the first earthing mechanism, the second ditching mechanism, the seeding mechanism, the second earthing mechanism and the watering mechanism, the automatic corn seeding is realized, the hand labor is reduced, the seeds and the fertilizer can be seeded at the same time, or the dual-row alternative seeding can be realized, the distance between the seed and the fertilizer can be precisely controlled, and the automatic irrigation is realized.

The invention discloses a combined LED display screen which can reduce the splicing gap and is easy to install. groove, and the inside of the connection groove is fixed with a first support frame, the first support frame is provided with a first fixing hole, the fixing rod is fixed on the upper surface of the first fixing plate, and the first fixing plate passes through Through the second support frame, the fixed frame is fixed on the back of the display screen body, and the inside of the fixed frame is provided with a sliding groove, and the inside of the sliding groove is provided with a second fixing plate, and the second fixing plate is installed There is a third fixing hole. The combined LED display that can be seamlessly spliced ​​and is easy to install, when the telescopic spring is in a normal state, the first fixing plate is in contact with the bottom surface of the connecting groove, so that when the connecting plate is installed in the connecting groove, the first fixing plate The plate can fix the connecting plate in the connecting groove.

The invention discloses a robot joint decelerator transmission performance testing device with a mobile slide unit. The robot joint decelerator transmission performance testing device includes the mobile slide unit, the mobile slide unit includes a first slide device and a second slide device, the first slide device is provided with a first slide platform and a gear, the gear is fixed on a frame through a center shaft, the first slide platform is provided with a tooth bar, the tooth bar is engaged with the gear, the second slide device is provided with a second slide platform, the second slide platform is provided with a screw rod nut pair, the screw rod nut pair includes a screw rod and a nut, the nut is fixed on the second slide platform, and the screw rod is fixed on the frame. The tooth bar and the gear are arranged on the first slide platform, the rotation of the gear is converted into the linear movement of the tooth bar, the rotation of the screw rod is converted into the linear movement of the nut, the distance between the linear movement of the first slide platform fixed with the tooth bar and the linear movement of the second slide platform fixed with the nut can be conveniently controlled, and the problems of manual pushing and low movement precision of a slide unit in the prior art can be solved.

The invention discloses an adjustable flap retractor for a mammary gland surgeon operation, and belongs to the technical field of medical instruments. The adjustable flap retractor comprises a handle, an inner cavity is formed in the handle, first supporting seats are connected to the two sides of the interior of the inner cavity, adjusting screw rods are rotationally connected into the first supporting seats through first bearings, driven bevel gears are connected to the sides, close to each other, of the two adjusting screw rods, and driving bevel gears are connected to the lower parts of the two driven bevel gears in an engaged mode. By arranging the inner cavity, the adjusting screw rods, a sliding through groove, a supporting guide rod, the first supporting seats, a built-in groove, a connecting column, a rotating cross rod, the driven bevel gears, a gear column, a second supporting seat and the driving bevel gears, under the mutual cooperation of the structures, the function that connecting blocks on the two sides can be adjusted through rotation, and then the position of a hook body is adjusted is achieved, fixing operation is not needed again, the adjustable flap retractor for the mammary gland surgeon operation is simple and convenient, and great convenience is brought to a user.

The invention discloses a shallow-tillage weeding machine which comprises a rack body, wherein a flexible rod is arranged in the upper part of the rack body; a suspension device is arranged on the flexible rod; two rows of shallow-tillage shovels are arranged in the bottom of the rack body and a traveling wheel is further arranged at the center of the bottom of the rack body; the traveling wheel is connected with the rack body through a damping spring; a weeding roll is mounted in the rear part of the rack body through a connecting rod; uniformly distributed bumps are formed on the surface of the weeding roll; a universal tube is further arranged on the rack body; and a lighting device is connected at the other end of the universal tube. The shallow-tillage weeding machine disclosed by the invention is simple in structure and convenient and practical; as the suspension device is arranged, the shallow-tillage weeding machine is conveniently connected with a tractor; as the flexible rod is arranged, the distance from the tractor to the shallow-tillage weeding machine disclosed by the invention is conveniently controlled; weeds are mucked out through the shallow-tillage shovels, and the weeds are brought out of the earth's surface by virtue of the weeding roll; as the lighting device is arranged, the shallow-tillage weeding machine can work conveniently at night.

An environment-friendly gravel aggregate loading device comprises a material warehouse, a weighing bin, a movable hopper and a conveyor, a row of discharging pipes are arranged at the bottom of the material warehouse, bar valves are arranged on the discharging pipes, two rows of supporting columns are arranged on two side edges of the lower side of the material warehouse, supporting frames are symmetrically arranged on the inner sides of the two rows of supporting columns, supporting tables are symmetrically arranged on the supporting frames, and the weighing bin is arranged on the supporting tables. According to the environment-friendly gravel aggregate loading device and a using method thereof, when the device is used, an automobile does not need to move in the whole loading process, due to the fact that the falling point is low, the discharging speed is small, loading is conducted in a good dust collection environment, dust pollution is eradicated, power of the conveyor is controlled in a frequency conversion mode, the loading effect is smooth and even, the whole loading process does not need manual operation, the automation degree is high, and a large amount of manpower is saved.

The invention provides a building material production positioning guide device. The device comprises a first limiting pipe, a roller, a first electric extension rod, a first stud, a rectangular shell,a first connecting plate and a second connecting plate; the first electric extension rod is assembled on the left end surface of a support block; a second electric extension rod is assembled on the right end surface of the support block; the left end of the roller is connected with the right side of the annular side surface of the first electric extension rod through a rotating shaft; the right end of the roller is connected with the left side of the annular side surface of the second electric extension rod through a rotating shaft; through the design, the problem of easy displacement of support positioning guide device films for gypsum line film coatings is solved; the first connecting plate is assembled on the front side of the upper end surface of the support block; the second connecting plate is assembled on the front side of the upper end surface of the support block; a first stud is assembled on the right end surface of the second connecting plate; the left end of the first studextends to the left side of the second connecting plate and is connected with the right end of the rectangular shell; through the design, the purpose of film protection is achieved; and the device isaccurate in positioning, protects films, and achieves complete functions, safety and reliability.

The invention relates to a crane ship and a hoisting operation method, and belongs to the technical field of ships. The crane ship comprises a semi-submersible main ship body and a plurality of cargobooms detachably mounted on the main ship body, a ballast tank is arranged in the main ship body, and a telescopic full-revolving propeller is mounted at the bottom of the bow of the main ship body. Afull-revolving propeller is mounted at the bottom of the stern of the main ship body, each hoisting arm comprises a hoisting beam and a bearing piece arranged at the end part of the hoisting beam, and the hoisting beam can transversely move along the main ship body. The end part of the hoisting beam transversely extends out of the main ship body during hoisting operation, and the bearing piece can vertically rise and fall relative to the hoisting beam through hydraulic drive. The crane ship can be dynamically positioned in an operation area, the bearing piece extends out to an operation position through the transverse extending of the hoisting beam, and the bearing piece is hydraulically driven to vertically rise and fall to be matched with the ballast adjustment, so that the hoisting operation can be quickly completed. The crane ship can work separately and can also work together with other crane ships. The operation method is flexible and high in operation efficiency.

The invention relates to an optical titanium nail detection platform which comprises a detection mechanism, an adjusting rod, an adjusting mechanism, a nail bin and a bottom plate, wherein an adjusting rod assembly and the adjusting mechanism are fixed to the front end and the rear end of the bottom plate respectively, and the detection mechanism is installed on the adjusting rod assembly in an up-down sliding mode. The detection mechanism comprises a display screen and a lens which are fixed together, the lens is located below the display screen, the lens for detection is arranged downwards, and the lens comprises an annular light source and a camera located in the center of the annular light source; the nail bin is installed on the adjusting mechanism in an angle and height adjustable mode. Whether the small-diameter titanium nail deforms or not is observed according to the light reflection principle. Whether the titanium nail deforms is detected and accurately judged through the detection mechanism, the height of the detection mechanism is adjusted through the adjusting rod, and the distance between the lens and the titanium bin is conveniently controlled. The angle and the position of the nail bin are adjusted through the adjusting mechanism, and all titanium nails on the nail bin can be conveniently observed through the lens.

The invention relates to open flash point measuring equipment, which comprises an enclosure, wherein the enclosure is provided with a flash fire detection device; the flash fire detection device comprises a flash fire box; the top of the flash fire box is provided with an atomization mechanism; an ignition mechanism is arranged below the atomization mechanism in the flash fire box; the inner wallof the flash fire box is provided with a plurality of fixing mechanisms; the ignition mechanism is fixed on the inner wall of the flash fire box through the fixing mechanisms; the atomization mechanism comprises a liquid feeding pipe, wherein the liquid feeding pipe is connected with a spray disc; the spray disc is provided with a plurality of atomization shower nozzles; and the opening of each atomization shower nozzle faces the ignition mechanism. After a tested oil sample enters the spray disc through the liquid feeding pipe to be sprayed through the atomization shower nozzles, the tested oil sample is in contact with a round detection ring. Since the round detection ring is provided with a discharging tip, after the round detection ring is electrified, the discharging tip discharges, the atomized tested oil sample is in contact with an electric spark to form flash fire, the atomized tested oil sample is fully burnt so as to achieve a best combustion effect, and detection accuracy is improved.

The invention provides a lifting type operation platform of an elevator shaft. The lifting type operation platform of the elevator shaft comprises an outer frame, a steel plate, installation grooves,a supporting structure, a strengthening structure and guiding structures. The square steel plate used for bearing a construction material is welded to the outer frame of a square structure. The supporting structure is fixed to the steel plate. The supporting structure comprises multiple transverse rods and four stand columns, the four stand columns are fixed to the steel plate in a rectangular array manner, the stand columns are clamped in the installation grooves, and at least one transverse rod is perpendicularly arranged between every two adjacent stand columns. Each guiding structure comprises a guiding wheel and a guiding shaft. At least two guiding wheels are arranged on each side edge of the outer frame, and the guiding wheels used for guiding the outer frame are rotationally connected with the outer frame through the guiding shafts. The lifting type operation platform of the elevator shaft has the beneficial effects of being convenient to use, high in building efficiency, goodin use effect and high in use safety.

The invention discloses a knotting-preventing take-up device for a yellow phosphorus furnace water hose. The knotting-preventing take-up device comprises a right supporting plate, a mounting base anda concave block, wherein the right end of the right supporting plate is internally provided with a sliding groove, a first rotary shaft is connected in a sliding block, a sponge layer is adhered and connected to the inner surface of a right clamping plate, a second fluted disc is connected to a first fluted disc, the outer surface of a second rotary shaft is welded with a left clamping plate, themounting base is located at the right end of the right supporting plate, a first take-up rod is connected to a motor, the concave block is located at the left end of the first take-up rod, a convex block is arranged at the left end of the concave block and is welded at the right of a second take-up pipe, and the left end of the second take-up pipe is connected with a left supporting plate. The knotting-preventing take-up device for the yellow phosphorus furnace water hose can adjust take-up length and increase the take-up amount, a winding mode is reasonable, mutual extrusion of the water hoseis not possibly caused, and a water hose inclusion device is provided to prevent loosening of the water hose after winding.

A battery corner sealing positioning mechanism based on packaging equipment comprises a rack, the rack comprises an upper plate, a lower plate and two side plates installed on the two sides of the upper plate and the two sides of the lower plate, and the two sides of the upper plate and the two sides of the lower plate are connected with the upper ends and the lower ends of the side plates respectively; and the battery corner sealing positioning mechanism further comprises an upper corner sealing mechanism and a lower corner sealing mechanism. The upper corner sealing mechanism is mounted on the upper plate; the lower corner sealing mechanism is mounted below the lower plate; and the upper corner sealing mechanism and the lower corner sealing mechanism are a pair of mutually symmetrical mechanisms, wherein the upper corner sealing mechanism comprises an air cylinder, a piston mounting plate, a corner sealing heating body, an corner sealing mounting plate; a corner sealing head, an adjusting screw and a sealing head adjusting seat, the air cylinder is downwards installed on the upper plate, a through hole is formed in the upper plate and used for the piston end of the air cylinder to penetrate through, the piston end of the air cylinder penetrates through the lower end of the upper plate through the through hole and is connected with the piston mounting plate which tends to be horizontally fixed, the corner sealing mounting plate is fixed to the lower end of the piston installation plate, and the corner sealing heating body is fixed below the angle seal installation plate.

The invention relates to the field of pipe explosion detection devices, in particular to an ultra-low power consumption pipe explosion detection device. The ultra-low power consumption pipe explosiondetection device comprises a gathering and conveying pipe, wherein the gathering and conveying pipe is provided with an electronic check valve, the electronic check valve is provided with a first cable, the first cable is provided with a controller, the controller is provided with an alarm structure, the controller is provided with a second cable, and the second cable is provided with measuring structures; each measuring structure comprises a nut, a threaded column, a straight cylinder, a cylinder, a gas pressure sensor, a gas flow sensor, L-shaped mounting rods, a bearing, a cross rod, a lower iron plate, an upper iron plate, a piston and a spring, the straight cylinders are connected with the gathering and conveying pipe, each straight cylinder is provided with the corresponding cylinder, and each cylinder is provided with the L-shaped mounting rods, the L-shaped mounting rods are provided with a gas pressure sensor and a gas flow sensor, and each cylinder is provided with a cross rod, and each cross rod is provided with a lower iron plate; and each cylinder is provided with a threaded column, each threaded column is provided with a nut, each threaded column is provided with a bearing, each bearing is provided with a spring, each spring is provided with a piston in sliding connection with the inner wall of each cylinder in an attached manner, the bottom of each piston is fixedly connected with an upper iron plate. According to the ultra-low power consumption pipe explosion detection device, various kinds of real-time detection are matched with one another, so that the detection accuracy is ensured.