12results about How to "Improve push effect" patented technology

The invention relates to the technical field of medical instruments, and discloses a micro catheter. Wherein the microcatheter is sequentially provided with a lining tube and a high polymer material layer from inside to outside in the radial direction, a variable-diameter section is arranged at the far end of the microcatheter, a small-diameter section is arranged on one side of the far end of the variable-diameter section, and a large-diameter section is arranged on one side of the near end of the variable-diameter section; the high polymer material layer comprises a first hardness area, a second hardness area and a third hardness area which are sequentially arranged from the far end to the near end, the first hardness area is located on a part of the small-diameter section, the second hardness area is located on the other part of the small-diameter section, the variable-diameter section and a part of the large-diameter section, and the third hardness area is located on the other part of the large-diameter section; the hardness of the first hardness area is smaller than that of the second hardness area, the hardness of the second hardness area is smaller than that of the third hardness area, and smooth transition of different hardness materials of the large-diameter section and the small-diameter section of the microcatheter is achieved; the flexural rigidity of the reducing section is reduced, so that the change value of the flexural rigidity is reduced, the stress concentration is reduced, and the reliability of the microcatheter is improved.

The application belongs to the technical field of drill bits, and discloses a noise reduction drill bit and a use method thereof, which comprises a drill body, a drill bit for drilling, an auxiliary drill bit arranged between the drill body and the drill bit for assisting drilling, a cleaning assembly arranged in the drill body for cleaning, and an auxiliary assembly arranged in the drill body for assisting ejection, a circular through hole for feeding is arranged in the drill bit, and one end of the circular through hole is in communication with the interior of the drill body. The application utilizes the equipment to push the push rod to move, so that the push plate can be well driven to move in the interior of the drill body. Meanwhile, the support rod, the positioning groove and the moving block are used in cooperation, so that the push plate can be assisted to push during the pushing process, the pushing effect is better, and the noise reduction effect is also better.

The invention relates to the technical field of medical instruments, and discloses an arthroscope waste liquid suction device with a rapid self-cleaning function, the arthroscope waste liquid suction device comprises a negative pressure device, the two sides of the negative pressure device are fixedly connected with storage tanks, the tops of the storage tanks are provided with tank covers, and the tank covers are provided with feeding ports; a filtering and separating mechanism is arranged on the outer side of the tank cover and comprises a servo motor fixedly connected to the top end of the tank cover, a filtering rotary drum and a separating rotary drum, the filtering rotary drum and the separating rotary drum are rotationally connected with the tank cover, and a placing hook is fixedly connected to the outer side of the negative pressure device; a smashing and pushing mechanism is arranged on the outer side of the containing hook, a cleaning mechanism is arranged on the outer side of the negative pressure device, and an emptying exhaust valve port is formed in the outer side of the storage tank. By means of the differential double rotating drums and the reciprocating smashing and cleaning mechanism, chipping cutting and smashing, solid-liquid separation and blockage prevention are achieved, and the pipeline can be cleaned in situ to avoid infection.

The application provides a micro catheter, comprising a tube body, the tube body comprising an inner layer, an intermediate layer and an outer layer, the intermediate layer comprising a reinforcing area, a body area and a weakening area arranged in sequence along the circumferential direction of the tube body, the bending stiffness of the reinforcing area, the body area and the weakening area decreasing in sequence. Therefore, the bending stiffness of the tube body on the side of the reinforcing area is stronger, so that the micro catheter has better pushing performance and supportability on the side of the reinforcing area, and the kinking caused by the transitional bending of the micro catheter can be avoided. Meanwhile, the bending stiffness of the tube body on the side of the weakening area is smaller, the local flexibility is higher, and the bending performance is better. The body area maintains the basic stiffness and performance of the tube body and forms a smooth transition between the reinforcing area and the weakening area, so that the local stress concentration does not cause the bending failure of the catheter, thereby realizing the passability of the micro catheter in special tortuous blood vessels and the plasticity of the head end.

The invention relates to an energetic material based on a urea-potassium perchlorate eutectic system and a preparation method of the energetic material, and belongs to the technical field of safe and environment-friendly energetic materials. The energetic material based on the urea-potassium perchlorate eutectic system is prepared from the following components in parts by weight: 18 to 35 parts of high-molecular fluorine polymer with the particle size of 50 to 400 microns; 15-40 parts of active metal powder with a particle size of 10-75 [mu] m; 10-30 parts of urea with a particle size of 20-100 [mu] m; 12-35 parts of potassium perchlorate with a particle size of 10-120 [mu] m; 0.5 to 3 parts of a silane coupling agent; 0.5 to 5 parts of a binder; 5 to 10 parts of nano silicon dioxide; 0.5-3 parts of a stabilizer; the urea and the potassium perchlorate are used for constructing a urea-potassium perchlorate eutectic system. According to the energetic material, through co-crystallization treatment of urea and potassium perchlorate, the synergistic effect of an oxidizing agent and a gas generating agent is optimized, and then the problems that a traditional energetic material for emission is large in pollution and poor in safety are solved.

The utility model relates to flat bottom material bin sliding frame mechanism technical field discloses a kind of flat bottom material bin sliding frame mechanism, including installation bottom plate, the upper side of installation bottom plate is fixedly connected with electric push rod, the side output end of electric push rod is fixedly connected with first transmission rod, the outside of first transmission rod is fixedly connected with first toothed plate, the outside of first toothed plate is connected with first gear wheel with tooth, the inside of first gear wheel is fixedly sleeved with first connecting rod, the outside of first connecting rod below is movably sleeved with installation sleeve.The utility model discloses a kind of flat bottom material bin sliding frame mechanism, by being set second transmission rod, two sliding frame assemblies can be driven to move reversely, further enhance the scattering and push effect of material, improve the discharge effect of material, reduce material accumulation, by being set spring, first impact block and second impact block can be shock-absorbed and buffered, reduce sliding frame abrasion, prolong equipment service life.

This invention discloses a self-rotating, attitude-adjustable forage-pushing robot, relating to the field of intelligent livestock farming technology. It includes a robot body and a pushing roller disposed outside the robot body. The robot body includes a chassis with a walking mechanism, a rotary motor fixed to the chassis, a drive shaft connected to the output shaft of the rotary motor, and a pushing roller support fixed to the end of the drive shaft away from the rotary motor. The pushing roller is sleeved on the outer circumference of the pushing roller support. A lifting mechanism is also provided between the chassis and the pushing roller support to drive the pushing roller support away from / towards the chassis. This invention's pushing robot combines the rotation and lifting functions of the pushing roller through a ratchet mechanism, resulting in better pushing performance and a lower failure rate.

The utility model discloses an arch breaking structure of a sludge treatment device, which is arranged in a stock bin and comprises an arch breaking carriage capable of reciprocating back and forth in the stock bin and a rocker connected to the arch breaking carriage, the arch breaking carriage comprises a carriage assembly and a carriage keel connected with the carriage assembly, and the rocker is connected with the carriage keel; when the arch breaking sliding frame reciprocates, the rocker can be driven to swing, so that materials on the side, away from the discharging port of the stock bin, of the sliding frame keel are pushed to the discharging port. Materials on the side, away from the discharging port, of the sliding frame keel are pushed to the discharging port through the swinging rocker, the materials are prevented from being accumulated in the area, discharging is more thorough, and the maintenance difficulty and the maintenance cost of equipment are reduced.

The application discloses an injection molding part production and processing crusher and relates to the related field of plastic processing technology, which comprises a crushed material box and a crushed material roller, the crushed material roller is movably installed in the crushed material box, a plurality of groups of rotary hoppers and moving knives are annularly distributed on the surface of the crushed material roller, the rotary hoppers and the moving knives are alternately arranged, fixed knives are fixedly installed on the two sides of the crushed material roller in the crushed material box, a pushing rod is movably installed on the inner side of the rotary hopper, the cross section of the pushing rod is in a rhombic structure, a feeding chute is arranged at the upper end of the crushed material box, an elastic baffle is movably installed on one side of the upper end of the crushed material box, which is located at the feeding chute, and a feeding push plate is movably installed on the other side of the upper end of the crushed material box, which is located at the feeding chute.

The application relates to the technical field of document query assistance, in particular to a structured XML standard document intelligent query assistance system based on a large model, which comprises a data receiving module, a document comparison module, a data division module, a data analysis module, a text generation module, a data statistics module and a data processing module, whether the processing of each document is qualified is determined based on a click probability, when it is determined that the processing of each document is abnormal, a preset reference quantity is adjusted to a corresponding value, whether the operation of the document generation module is qualified is determined based on the average push quantity of the average single output push document of the text generation module, when it is determined that the operation of the document generation module is abnormal, a preset category quantity used for dividing the relevance of single batch documents is adjusted to a corresponding value. The feedback of the user is analyzed, the system is optimized according to the use behavior of the user, and the query efficiency of the document is improved.

This invention proposes a droplet digital PCR method for simultaneously detecting the quantity of four foodborne pathogens. The steps include: 1. Preparing the DNA sample to be tested; 2. Preparing primers and probes for the four bacteria to be tested; the four bacteria to be tested are Staphylococcus aureus, Listeria monocytogenes, Salmonella typhi, and Bacillus cereus; 3. Using a ddPCR amplification reaction system, which includes the primers and probes for the four bacteria to be tested in step 2, amplifying the DNA sample to be tested in step 1, detecting the amplification products, and obtaining the quantitative results of the four bacteria. This invention can simultaneously detect four pathogenic microorganisms: Staphylococcus aureus, Listeria monocytogenes, Salmonella typhi, and Bacillus cereus. It establishes a precise, rapid, and absolute quantitative detection system for the simultaneous detection of these four pathogens using multiplex ddPCR technology, exhibiting high specificity, high precision, and strong repeatability.