64results about How to "Reduce the probability of loosening" patented technology

The invention discloses an artificial total knee joint prosthesis. The artificial total knee joint prosthesis comprises a femoral condyle, a spacer and a tibia holder connected in sequence, the upper surface of the spacer is in slide fit with the femoral condyle, and the lower surface of the spacer fits with the tibia holder; all of the femoral condyle, the spacer and the tibia holder are made of polyetheretherketone or derivatives thereof. The artificial total knee joint prosthesis has high abrasion resistance, good biocompatibility and good cushion performance, biological properties of normal knee joints can be better stimulated, and subjective feeling of patients can be further improved; besides, the artificial total knee joint prosthesis is long in service life and low in revision rate, metal ion toxicity and anaphylaxis cannot be caused, and perspective development and magnetic resonance imaging are unaffected.

The invention relates to the field of mounting equipment for mobile communication equipment and provides a router mounting bracket for solving the problems that signals of a bidirectional antenna of arouter are transmitted forwards only and a user needs to frequently rotate the antenna when surfing the Internet at different positions. The router mounting bracket comprises a pedestal, a driving module, a sensing module, a storage module, a detection module, a processing module and a control module, wherein the pedestal is connected with a rotatable supporting seat; the driving module is used for driving the supporting seat to rotate; the sensing module is used for sending position sensation information when a user is in a sensing region; the storage module is used for storing the positionsensation information; the detection module is used for detecting a signal accessing to the router and sending a start signal after detecting that the signal accesses to the router; the processing module is used for processing the current position sensation information and the previous position sensation information stored in the storage module after receiving the start signal and generating angleinformation of the rotation required by the supporting seat; and the control module is used for controlling the driving module to rotate a corresponding angle according to the angle information.

The invention discloses a medicine-carrying silk fibroin bone repair screw and a preparation method thereof and relates to the technical field of biomedical materials. According to the medicine-carrying silk fibroin bone repair screw and the preparation method thereof, a 3D printed medicine-carrying bone repair screw based on a silk fibroin material is proposed and developed, a medicine is locallyreleased through decomposition of silk fibroin after implantation of the bone repair screw, so that the bone repair screw has the function of inhibiting bacterial infection while having basic fixation and bone formation functions.

The invention discloses a cement-free pervious concrete brick. The cement-free pervious concrete brick comprises first brick bodies, second brick bodies, inserting mechanisms and fixing mechanisms, the first brick bodies and the second brick bodies are connected through the fixing mechanisms, and the second brick bodies are located below the first brick bodies; and inserting mechanisms are arranged at the positions, close to the middle, of the outer surfaces of one sides of the second brick bodies and the first brick bodies correspondingly, and inserting grooves are formed in the two sides ofthe inner surfaces of notches correspondingly. According to the cement-free pervious concrete brick, through the arrangement of the inserting mechanisms, two adjacent groups of first brick bodies andsecond brick bodies are inserted, the firmness of the paved pavement is improved, and the loosening probability of the paved pavement is reduced, so that the flatness and the safety of the paved pavement are improved, and meanwhile, through the arrangement of the fixing mechanisms, the paved first brick bodies and second brick bodies can be fixed to the ground; and therefore, the stability of connection between the first brick bodies and the second brick bodies and the ground is improved, the service life of the paved ground is prolonged, and the use cost is reduced.

The invention relates to an assembly type steel structure-concrete combined bridge and a construction method thereof, and relates to the technical field of bridge construction. The assembly type steelstructure-concrete combined bridge comprises concrete piers and steel frame girders, wherein the side walls of the two sides of the concrete piers are correspondingly provided with placing grooves, the steel frame girders comprise steel girder supporting devices, steel girder bearing devices and steel girder plates, the bottoms of the placing grooves are connected with elastic blocks, and the elastic blocks are connected with the steel girder supporting devices; and male inserting plates and female inserting plates are arranged on the lower surfaces of the two steel girder plates on the sameconcrete pier correspondingly, the female inserting plates are matched with the male inserting plates in an inserted mode, the short edges of the female inserting plates and the short edges of the male inserting plates are connected with elastic parts, and the elastic parts extend to the part between the two steel girder plates and are connected with the opposite sides of the two steel girder plates. According to the assembly type steel structure-concrete combined bridge, due to arrangement of the male inserting plates, the female inserting plates, the elastic parts and the elastic blocks, theprobability of being damaged between the adjacent steel frame girders and between the steel frame girders and the concrete piers is reduced, the integral structure of the bridge is stable, and the probability of being damaged under the condition of an earthquake or large vibration is greatly reduced.

The invention provides a safe and reliable supporting structure for a building curtain wall. The structure comprises a rectangular frame, a cylinder I, a support rod, a vibration damping spring I, a vertical rod, a vibration damping spring II, a cylinder II and a vibration damping spring III, wherein the support rod is fixed to the inner wall of the rectangular frame, the cylinder I is arranged ina wallboard and mounted at the annular outer end of the support rod, and a vibration damping spring III is welded to the outer end of the cylinder I and the inner wall of the rectangular frame; the vibration damping spring III sleeves the annular outer end of the support rod, the vibration damping spring I is welded to the right end of the cylinder I and mounted on the right side of the rectangular frame, and the vertical rod is fixed to the right end of the vibration damping spring I; the vibration damping spring II sleeves the annular outer end of the vertical rod, the annular outer end ofthe vertical rod is provided with the cylinder II, and the vibration damping spring II is welded to the outer end of the cylinder II. The design achieves the vibration damping function, the looseningprobability of a mounting base is thus effectively reduced, and the supporting structure has the advantages of being safe and reliable in vibration damping function and stable in support.

The invention discloses an inclined disc type automobile air conditioner compressor, and belongs to the technical field of automobile accessories. The problem that in an automobile air conditioner compressor in the existing stage, an air inlet valve block and an air outlet valve block are not convenient to dismount or mount is solved. According to the technical scheme, the inclined disc type automobile air conditioner compressor is characterized in that according to the inclined disc type automobile air conditioner compressor, an end cover is provided with installing holes and a control valveelement detachably arranged in the installing holes, normal air inflow and air outflow of the inclined disc type automobile air conditioner compressor are achieved through cooperation of the control valve element and a valve plate, the air outlet valve block and the air inlet valve block on the control valve element can be replaced by dismounting the whole control valve element, and detachment andreplacement of the air outlet valve block and the air inlet valve block are convenient.

The invention belongs to the technical field of artificial joints, and particularly relates to a knee joint prosthesis with a posterior cruciate ligament. The anatomical form knee joint prosthesis with the posterior cruciate ligament comprises a femoral condyle and a tibial plateau pad, wherein the femoral condyle comprises entocondyle, lateral condyle and blocks, the entocondyle and the lateral condyle both are in the shape of C, and the intercondylar void is intercondylar fossa. The entocondyle and the lateral condyle are connected through the blocks, an inclined angle of the connecting lineof the lowest point of the entocondyle and the lowest point of the lateral condyle and the horizontal line is 3 degrees, and the tibial plateau pad comprises an entocondyle pit and a lateral condylepit to accommodate the entocondyle and the lateral condyle. According to the technical scheme, the pace of a postoperative patient is natural, the bending degree of the femoral condyle is increased, actions of going up and down stairs, deep squating, kneeling posture and the like are facilitated, and kneecap clicking and anterior knee pain can be reduced.

A knee joint prosthesis structure comprises a thighbone component, a cushion block component, a tibia component and a patella component, the thighbone component is provided with an intercondylar fixing block, the intercondylar fixing block is provided with a protruding part, the inner wall of the thighbone component is provided with a first coating used for bone ingrowth or bone growth, the cushion block component is located between the thighbone component and the tibia component, the outer wall of the lower end of the tibia component is provided with a second coating used for bone growth or bone length, the patella component is located in front of the thighbone component, and the inner wall of the patella component is provided with a third coating used for bone growth or bone length. The knee joint prosthesis structure is a biological type fixed prosthesis structure, various defects and complications caused by bone cement fixation can be avoided, harm to patients and surgical related medical staff due to current bone cement application is reduced, the long-term stability of the prosthesis is improved, the prosthesis loosening rate and the surgical revision rate are reduced, the cost is saved, and the cost is reduced. and the problem of precious medical observation is solved, and great social effect and economic benefit are achieved.

The invention discloses a sleeper type external locking device and an installation device matched with the sleeper type external locking device, and belongs to the technical field of turnout switchingequipment. The sleeper type external locking device is used for locking a point rail and a basic rail at a turnout, and comprises a locking hook and a locking rod, wherein the locking hook is used for being connected with the point rail; the locking hook and the locking rod are in concave-convex connection; a protrusion on the locking rod can be embedded into a groove at the lower part of the locking hook; the locking hook can be driven to switch between a locking state and an unlocking state through the movement of the locking rod; the two sides of the locking hook are respectively fixedly connected with a limiting plate; the extending ends of the limiting plates are positioned on the two sides of the locking rod; and a connecting rod is connected between the extending ends of the two limiting plates to limit the locking rod in the space between the connecting rod and the locking hook. According to the sleeper type external locking device, the limiting plates are arranged on the twosides of the locking hook, so that the locking hook better adapts to the crawling of the point rail, the abrasion of an iron pin shaft and locking iron connecting the locking hook with the point railis reduced, and the unhooking phenomenon of the locking hook in the repulsion position is effectively prevented.

The invention discloses a three-anchor buoy type acoustic tomography measuring station, which relates to the technical field of ocean monitoring, comprises a base station base body and a measuring assembly, and is characterized in that the base station base body comprises an equipment cabin, an energy supply assembly is arranged at the top of the equipment cabin, a plurality of floating bodies are arranged around the equipment cabin, and a measuring assembly is arranged at the bottom of the equipment cabin; the measuring assembly comprises a hydrophone and an emitter; three anchor systems are evenly arranged around the base station base body in a surrounding mode and comprise anchors, the anchors are connected with the base station base body through anchor chains, and floaters are arranged at the positions, close to the base station base body, of the anchor chains. And a positioning and timing device is arranged at the top of the base station base body. The invention provides the three-anchor buoy type acoustic tomography measuring station which is stable in position, accurate in measurement and convenient to set.

The invention discloses a filling device applied to a liquefied natural gas (LNG) bottle. The filling device comprises a housing composed of a housing inlet and a sealing surface, an outlet joint, a valve element assembly and an elastic part, wherein the housing inlet is formed in the front end of the housing, and the sealing surface is arranged inside the housing; the outlet joint is arranged at the tail end of the housing, and the outlet joint is matched with an inlet of the LNG bottle; the valve element assembly comprises a hoop, a sealing part and a valve element; the hoop is arranged in the front of the inside of the housing; the sealing part and the valve element are mounted in the hoop, and the sealing part is matched with the sealing surface; the elastic part is disposed in the housing, one end of the elastic part is fixed in the housing, and the other end of the elastic part is connected with the valve element assembly. By means of the filling device applied to the LNG bottle, the sealing performance of the filling device can be improved.

The invention belongs to the technical field of food waste processors, and particularly relates to a food waste processor. The food waste processor comprises a filter assembly, a connecting part and acrushing chamber, the connecting assembly comprises a water drain pipe, a connecting seat and a connecting ring, the connecting seat sleeves the water drain pipe, and the filter assembly is used foropening or closing the water drain pipe. The crushing chamber communicates with the water drain pipe, the connecting seat is detachably connected to one end of the connecting ring, and the other end of the connecting ring is fixed to the crushing chamber. According to the food waste processor, a simple structure and easy disassembly and installation design is adopted, a user can conveniently perform maintenance or cleaning, the water drain pipe can be blocked to prevent the secondary pollution of a kitchen due to the odor discharge, the vibration generated by the food waste processor can be attenuated, and improving the user experience can be facilitated. In addition, the invention further discloses a method for installing the food waste processor.

The invention provides an automobile die machining positioning device with high reliability. The automobile die machining positioning device comprises a sliding rod, a guiding wheel, a threaded column, a spring, a balloon, a hose, a hanging ring and a rubber sleeve. The lower end of the sliding rod is assembled in a through groove. The upper end of the sliding rod penetrates through a sliding groove and extends to the upper portion of a machining table. The guiding wheel is mounted at the upper end of the sliding rod through a bearing. The threaded column is assembled on the outer side of theinterior of the through groove. The inner end of the spring is fixed to the lower side of the annular side face of the sliding rod. The outer end of the spring makes contact with the inner surface ofthe threaded column. According to the design, the spring is convenient to replace, the balloon is mounted on the front side of the right end face of the machining table through glue, the front end ofthe hose is assembled to the rear end of the balloon, the rear end of the hose is mounted on the hanging ring, the hanging ring is fixed to the rear side of the right end face of the machining table through a bolt, the rubber sleeve is fixed to the inner surface of the hanging ring, thus, the function of removing impurities conveniently is achieved, the spring can be replaced, impurities are convenient to remove, and the practicability and the reliability are high.

The invention provides a height self-adaptive clamping skirting line, and belongs to the technical field of skirting lines. The height self-adaptive clamping skirting line comprises a wall connectingfixing piece and a closing-in piece. The skirting line can be installed step by step through a clamping type connection installation technology of a first clamping structure and a second clamping structure, meanwhile, the simplest and most efficient installation technology is adopted, installation is completed through clamping, fasteners such as gun nails and screws do not need to be adopted for fixing, a wall panel is closed up through a first closing-up plate, the situation that a wall veneer is not installed neatly can be shielded, a flexible adjusting plate is bent into a curved surface, dust and dirt can be better prevented from being accumulated, sweeping in later use is facilitated, and a better and healthier indoor environment is obtained.

The invention relates to the technical field of ship assembly, in particular to a ship cabin unit convenient to combine, which comprises a ship body, uniformly distributed positioning grooves are formed in the upper end of the ship body, uniformly distributed cabin mechanisms are mounted on the inner walls of the positioning grooves, and two blow-off pipes are mounted in the ship body; by arranging the sewage discharging device, when a worker assembles the cabin mechanism, the cabin mechanism can drive sewage guiding pipes which are installed in advance and driven to be connected with a toilet and a waterlogging prevention mechanism which are installed in advance to be connected with corresponding connecting pipes, meanwhile, when the sewage guiding pipes are in butt joint with the installation platform, a cutter cuts off a liquid storage bag, and the sewage guiding pipes are connected with the installation platform. The structural adhesive in the liquid storage bag flows out and firmly adheres the sewage guide pipe and the connecting pipe together, manual connection of workers is not needed, the difficulty of connecting the sewage guide pipe and the connecting pipe together by the workers is lowered, the time needed for ship installation can be shortened, and the working efficiency of the workers is effectively improved.