51results about How to "There will be no slippage" patented technology

The invention discloses a 3D printing self-locking type anatomic artificial centrum. It includes the upper centrum and the lower centrum. The upper and lower centrums are connected with a groove and abulge. The surface of the upper and lower centrums is set with honeycomb bone trabecular structure. The contact surface of the upper and lower centrums has a physiological radian associated with thespine in contact with the spine. The structure of the bone trabecula is irregular three-dimensional mesh. The artificial centrum provided by the invention is the combination of two pieces of separate3D printing products without slip phenomenon, and the combination use is more convenient. The length can be processed based on the height of the patient's pathological changes and the contact positionof the centrum, and can control the size of the angle between the centrums, reduce the incidence of settlement, enhance the stability, and restore the back of the spine. Through honeycomb micro porestructure, promoting bone fusion, providing the optimal spinal physiological mechanism stability and carrying capacity, and finally achieving bone fusion.

The invention discloses a falling prevention structure of a panel type wiring terminal strip. According to the falling prevention structure, a top cover for limiting is integrally fixed above external wiring grooves, fasteners capable of being locked at the upper ends of conducting plates are arranged in the external wiring grooves respectively, the fasteners are necking screws provided with guide gaskets in a clamped mode, the guide gaskets are sleeved with springs in a compressed state, and the necking screws can move towards the top cover under the elasticity function of the compressed springs and the guide function of the guide gaskets and can be stopped on the top cover when unscrewed. According to the structure, in the wiring process, the wire locking motion can be carried out on the side face of the terminal strip without taking down the top cover, wiring accuracy is guaranteed, wiring efficiency is improved, the phenomenon that the screws slip is avoided due to the falling prevention limiting structure, the accidents of short-circuit electric shocks are avoided, the safety level of the terminal strip can reach IP20, and safety is greatly improved.

A combined type slingshot comprises a slingshot head, a slingshot body and a wrist support, wherein the slingshot head is fixed at one end of the slingshot body through a bolt, a clamping head provided with a lock groove is arranged at the other end of the slingshot, a clamping seat where a clamping groove is formed is arranged on a short shaft of the wrist support, the clamping head can be inserted into the clamping groove, the cambered surface part of the short shaft forms a locking part which can be clamped into the locking groove, and the locking part and the locking groove are mutually clamped or separated by rotating the wrist support, so that the wrist support is locked with or separated from the slingshot body. According to the combined type slingshot, the whole mounting and use process is concise and convenient, and fast implementation can be realized; and further, the slingshot has a good fixing effect, therefore, convenience in assembling and stability of the slingshot are combined, and the use requirements of the slingshot in different competitive races can be met.

The invention provides a closed rectangular-section FRP stirrup and a manufacturing method thereof, and relates to the technical field of building and bridge structures. By adoption of the closed rectangular-section FRP stirrup and the manufacturing method thereof, the problems that the bent section of a round-section FRP stirrup manufactured through a traditional pultrusion forming technique is low in strength, and bonding and sliding damage is likely to be caused by a lap joint method are solved. The closed rectangular-section FRP stirrup comprises a stirrup body, wherein the stirrup body is formed by winding an FRP bundle adopting infiltration resin in the perimeter direction layer by layer, and the cross section, in the direction perpendicular to the perimeter direction, of the stirrup body is rectangular. The manufacturing method of the closed rectangular-section FRP stirrup comprises the steps of glue dipping, winding, curing, demolding and cutting. The closed rectangular-section FRP stirrup and the manufacturing method thereof are used for building concrete construction.

The invention relates to a combined machine for pressing a rod. The combined machine comprises a pair of rod-pressing pincers, a reset core and a screw-plug holding device, wherein the rod-pressing pincers mainly comprise an upper pincer body and a lower pincer body which are connected through a pin shaft; an inner hole which penetrates front and back is formed; an annular bump is arranged at the front end of the inner hole; screw threads are arranged on the middle part of the inner hole; a spring is arranged behind the pin shaft; the reset core mainly comprises a main body and a head and is provided with an axial through hole; the head can rotate around the axial line of the main body; a groove is formed in the front end of the head; a positioning pin is arranged at the tail end of the head; elastic baffle sheets are arranged on the two sides of the main body; screw threads corresponding to the rod-pressing pincers are arranged on the reset core; the front end of the screw-plug holding device is a head section matched with a screw plug; elastic locking sheets are arranged on the two sides of the screw-plug holding device; the screw-plug holding device is provided with a positioning step; and a groove is formed in the positioning step. A cone body can be quickly and stably lifted at a constant speed by the combined machine, operations, such as lifting, rod pressing, screw plug mounting and screw plug fastening, can be finished at one time, the visual field during surgery is wide, the operation is simpler and more convenient, the surgery is smoother, and the risk of surgery is further reduced.

The invention relates to a highway tunnel jet fan supporting structure bearing capacity detection device which comprises a counter-force assembly used for being connected with an embedded steel plate of a jet fan. The counter-force assembly is provided with a pressurizing assembly used for abutting against the top wall of a tunnel. The counter-force assembly comprises a plurality of connecting pieces, a supporting rod, two steel wire ropes and a cross beam. The pressurizing assembly comprises a jack. The detection device further comprises a first protection assembly and a second protection assembly. The first protection assembly comprises a mounting base and a U-shaped protection frame detachably connected with the mounting base; an opening of the U-shaped protection frame is vertically upward; the cross beam is located in the U-shaped protection frame; and an elastic supporting piece is arranged at the lower end of the U-shaped protection frame. The second protection assembly comprises a connecting base and a connecting frame detachably connected with the connecting base. The method has the effect of improving the safety coefficient of workers in the detection process.

The invention discloses a die-cutting device and a die cutter applying same, which solve the problem that production cost is increased as a rotary roller needs to replace if a threaded hole in the rotary roller is liable to damage. According to the technical scheme adopted by the invention, the key point is that the die-cutting device comprises a supporting frame and the rotary roller which is mounted on the supporting frame and slides up and down along the supporting frame, wherein a cutting-pressing part is mounted in the peripheral direction of the rotary roller. The die-cutting device is characterized in that the rotary roller is in sliding connection with a slip part in the axial direction, wherein a magnetic part is fixedly arranged on the die-cutting part; the die-cutting part abutsagainst the rotary roller, and the magnetic part attracts the slip part to move in a direction close to the die-cutting part and to abut against the cutting-pressing part. The invention further provides the die cutter which achieves the purposes that the rotary roller is not liable to damage, and the production cost is reduced.

The invention discloses biomass solid fuel efficient combustion equipment. The biomass solid fuel efficient combustion equipment comprises a channel steel frame, a frame body is mounted on one side ofthe top of the channel steel frame, a crushing cavity is mounted in the frame body, a first motor is mounted on the side, away from the frame body, of the top of the channel steel frame, the top of the crushing cavity is provided with a feeding hopper, and a first crushing roller and a second crushing roller are rotationally arranged in an inner cavity of the crushing cavity. According to the biomass solid fuel efficient combustion equipment, two gears which are in meshing connection are arranged so that the first crushing roller and the second crushing roller can efficiently crush biomass solid fuel and coal slime through a first motor, the second crushing roller moves on a kidney-shaped hole at a certain amplitude in the crushing process through the cooperation of a lead screw and a spring, the situation of breakage due to the excessive tension in the crushing process of the first crushing roller and the second crushing roller is effectively prevented, meanwhile, it is ensured thatthe situation of slip of the two gears is avoided, and the technical problem that in the case of combustion equipment in the prior art, the crushing efficiency of the biomass solid fuel is not high issolved.

The invention belongs to the field of automobile parts, and particularly discloses an oil pan with an oil drainage structure. The oil pan comprises an oil pan body which is fixed on the lower portion of a machine body and used for containing engine oil flowing out from the machine body. The oil pan further comprises an engine oil pump, an internal thread tube arranged at the bottom of the oil pan and an oil suction tube used for sucking engine oil in the oil pan body, and the oil suction tube is located on the outer side of the oil pan body. The oil suction tube is flexible. The lower end of the oil suction tube is connected with the internal thread tube, and the upper end of the oil suction tube is detachably connected to the engine oil pump. Compared with the prior art, when the engine oil in the oil pan body needs to be drained, extra tools such as a wrench are not needed, and operation is easy. A traditional oil drainage screw plug is not adopted in the oil drainage structure, so that the phenomenon of sliding wires is avoided even though the oil drainage structure is used for multiple times, and oil leakage is avoided. In addition, the engine oil is directly drained out from the oil suction tube, and the hand of a user can not be stained during oil drainage.

The invention provides a new-type child seat with strong safety. The new-type child seat with strong safety comprises a seat body; the edge of the seat body is provided with a guard bar; the inner side of the guard bar is provided with a leaning cushion; connecting plates are welded below the front end of the seat body; the bottom of each connecting plate is welded with a leg support plate; the upper end face of each leg support plate is provided with an anti-skid pattern; all parts, positioned at knees of a child, of two sides of the connecting plates are separately adhered with a protectingtool; safety belts are arranged between two tail ends of the guard bar and between two sides of the front end face of the seat body and the inner side face of the connecting plates; the lower end faceof the seat body is welded with an installing column; the lower end of the installing column is in threaded connection with a connecting pipe; and installing holes are formed on the connecting pipe.The new-type child seat provided by the invention has the beneficial effects that the safety of the seat can be remarkably improved through the design of the protecting tool and the safety belts; thecomfort level of the seat can be greatly improved through the design of the guard bar and the leaning cushion; and convenience is provided for installing of the seat at the front end of a bicycle frame through the design of appearance of the seat body and a connecting column.

The invention relates to a Kirschner wire tensioning device. A rotating nut is coaxially and rotatably mounted at one end of a fixed shell, a supporting shell is fixedly mounted at the other end of the fixed shell, a threaded pull rod is mounted in the rotating nut in a threaded mode, a tensioning block is rotatably and axially fixedly mounted at one end of the threaded pull rod, and a clamping block is slidably mounted in the tensioning block; the clamping block is further provided with containing through holes communicating with a mounting through hole, the containing through holes are circumferentially and evenly distributed along the central axis of the mounting through hole, a plurality of limiting balls are arranged in the containing through holes, the threaded pull rod drives the tensioning block to be away from the clamping block, and the tensioning block pushes the limiting balls to gather towards the central axis of the mounting through hole; and a kirschner wire is clamped by the limiting balls, and the kirschner wire is clamped more and more tightly by the limiting balls. The kirschner wire tensioning device is simple in structure and convenient to operate, and the kirschner wire drawing efficiency is improved. The kirschner wire is clamped in the mode that the tensioning block, the clamping block and the limiting balls are matched, the clamping force is large, the phenomenon of slipping is avoided, the medical quality is guaranteed, and secondary damage is avoided.

The invention discloses a teaching experiment bench for a pure-motor automobile. The teaching experiment bench comprises a gantry crane frame and a supporting vertical rod; the gantry crane frame is mounted at the upper end of the supporting vertical rod; motor mounting bases are connected to the outer walls of the left side and the right side, close to the lower end, of the supporting vertical rod, and a control cabinet can be controlled; a shaft center rotating rod is driven by power of a transmission gear case to rotate synchronously, so that teaching motors fixed to a left teaching motor fixer and a right teaching motor fixer are turned over to a certain angle, and when the teaching motors need to be replaced, a rolling chain can be detached, then, a fixing bolt is loosened to be separated from the supporting vertical rod, so that the left teaching motor fixer and the right teaching motor fixer can be driven by a stretching motor to synchronously fall on the outer wall of the upperend of a fixing base, the disassembly and replacement process is rapidly completed, an adjusting disc does not need to be manually rotated for adjustment, and the fixing effect is extremely good; andthe adjustment mode is labor-saving.

The invention relates to the technical field of external storage equipment, and discloses external storage equipment based on data cleaning service, which comprises a storage machine body, ventilation windows are fixedly connected to the left side and the right side of the storage machine body, filter screen frames are slidably connected to the inner sides of the ventilation windows, and flow penetrating holes are formed in the left sides of the filter screen frames. A filter screen is fixedly connected into the flow penetrating hole, fixing blocks are fixedly connected to the top and the bottom of the ventilation window, rotating grooves are formed in the sides, deviating from each other, of the fixing blocks on the left side and the right side, built-in blocks are rotationally connected into the rotating grooves, and rotating columns are fixedly connected to the sides, deviating from each other, of the built-in blocks on the left side and the right side. According to the external storage device based on the data cleaning service, due to the fact that bolts are not adopted for fixing, the purpose that dismounting does not need a bolt screwdriver is effectively achieved, and due to the fact that the phenomenon of thread slipping does not occur, the purpose that a dustproof net in the external storage device is effectively and conveniently taken out is effectively achieved.

The pull ring for the bus comprises a plurality of first fixing bands fixed to a transverse fixing rod, a cylindrical clamping shell is fixed to the bottoms of the first fixing bands, two oppositely-arranged cover plates are formed at the bottom of the clamping shell in an inwards-protruding mode, an inserting seam is formed between the two cover plates, and clamping plates located in the clampingshell are fixed to the cover plates; the top of the clamping shell is connected with a top plate through an elastic structure; a cross rod is installed in cooperation with the inserting seam, the twoends of the cross rod protrude downwards to form clamping blocks matched with the clamping plates, the middle of the cross rod is connected with a T-shaped rod, the T-shaped rod is connected with a second fixing belt, and the second fixing belt is connected with a pull ring body. The pull ring for the bus is simple in structure and convenient to use, and the pull ring can be rapidly disassembled,assembled and disinfected, so that the pull ring is rapid to disinfect and is not prone to falling off when being pulled down by passengers.