12results about How to "No mechanical damage" patented technology

The invention relates to the technical field of rotary drilling barrels and discloses a device for shoveling and unloading slag from a bored pile rotary drilling barrel, comprising a drill barrel and a shoveling and unloading pressure rod which moves up and down relative to the drill barrel, wherein the drill barrel is provided with a cavity for accommodating slag, the upper portion of the shoveling and unloading pressure rod passes through a top plate of the drill barrel to form an operating section arranged outside the cavity, and the lower portion of the shoveling and unloading pressure rod is arranged in the cavity to form an internal section; a shoveling plate is connected to the internal section of the shoveling and unloading pressure rod, and the shoveling plate is close to the inner side wall of the drill barrel; when the drill barrel is drilling, slag is embedded in the cavity of the drill barrel, and when the drill barrel is pulled out, the shoveling plate is driven to move up and down by operating the shoveling and unloading pressure rod, and the shoveling plate can shovel the slag away from the inner side wall of the cavity, and then, by utilizing the dead weight of the slag, the slag can be conveniently dropped from the cavity of the drill barrel without the need to rotate the drill barrel back and forth, and during the process of unloading the slag from the drill barrel, the noise is low, the operation is fast and efficient, and no mechanical damage to the rotary drilling rig is caused.

The invention provides a regulation and control method for prolonging the refreshing time of prunes, which comprises the following steps: disinfecting a phase-temperature fresh-keeping storehouse for 24 hours by using absolute ethyl alcohol, and ventilating for 8-10 hours to ensure a sterile environment. During harvesting, prunes which are free of plant diseases and insect pests, free of mechanical damage, complete in fruit cream and larger than or equal to 20% in sugar content are selected, and the temperature of the prunes is rapidly reduced to 2-2.2 DEG C within 10 hours by means of portable differential pressure precooling equipment. After precooling, a methyl jasmonate aqueous solution is adopted for electrostatic atomization spraying, and 1-methylcyclopropene is used for airtight fumigation for 18-20 hours to inhibit ethylene generation and respiration. And then, storing in a phase temperature warehouse at the temperature of-1.5 to-1.2 DEG C, controlling the relative humidity to be 85-87%, and carrying out intermittent nano-atomization sterilization by using a hydrogen peroxide aqueous solution once every 15-18 days. According to the method, the fresh-keeping effect of the prunes is comprehensively improved, the safety and the quality of the fruits are ensured, and the fresh-keeping period is remarkably prolonged.

The invention discloses a detachable traceless silicone rubber creepage-increasing umbrella skirt and processing equipment and a processing technology thereof, and belongs to the technical field of electric insulation accessory processing, the detachable traceless silicone rubber creepage-increasing umbrella skirt specifically comprises an umbrella skirt body, a mounting hole matched with an insulation plate is formed in the middle of the umbrella skirt body, and an interlocking opening communicated with the mounting hole is formed in the umbrella skirt body in the radial direction of the umbrella skirt body; the interlocking opening can realize autonomous closing and locking, and the closed umbrella skirt body forms a complete closed-loop structure; according to the invention, through the arrangement of the interlocking opening, the umbrella skirt body is directly sleeved into the insulating plate and then the interlocking part is buckled during installation, the umbrella skirt body is separated by hands during disassembly, tools are not needed, adhesive residues are avoided, mechanical damage is avoided, detachable traceless installation is truly realized, the insulating plate body is not damaged, and the later maintenance and replacement efficiency is greatly improved.

The utility model provides an auxiliary oiling device of a drawing machine, which belongs to the field of textile production and comprises a support, a limiting mechanism used for adjusting the oiling angle and position is arranged on the side wall of the support, and an oiling assembly used for oiling drawn fibers is arranged on the limiting mechanism. The oiling assembly is provided with an oil conveying assembly used for conveying lubricating oil to the oiling assembly. According to the oil feeding assembly, when the oil feeding assembly is used, a V-shaped plate is fixedly connected with the telescopic inner pipe through welding, the bottom of the V-shaped plate is in bolted connection with a fixing plate through three fixing bolts, a stable structure is formed, the installation angle of oil absorption felt is guaranteed, disassembly and maintenance are convenient, and the oil absorption felt is of a porous fiber structure and can absorb a large amount of lubricating oil and slowly release the lubricating oil; meanwhile, the oil absorption felt is soft in texture, and mechanical damage cannot be generated when the oil absorption felt makes contact with silk threads.

The invention discloses a slurry concentration backwater treatment system and a backwater treatment method thereof.The slurry concentration backwater treatment system comprises an arc-shaped sieve, a coarse separation backwater bin, a fiber recycling machine, a fine separation backwater bin and a screw press, and a water outlet of the arc-shaped sieve is connected with a water inlet of the coarse separation backwater bin through a pipeline; a water outlet of the coarse separation water return bin is connected with a water inlet of the fiber recycling machine, and a water outlet of the fiber recycling machine is connected with a water inlet of the fine separation water return bin; a slag outlet of the sieve bend is connected with a feeding hole of the screw press through a pipeline; a water outlet of the screw press is connected with a water inlet of the coarse separation water return bin; a slag outlet of the fiber recycling machine is connected with a feeding hole of the screw press through a pipeline; the device has the advantages of simple structure, reasonable layout, high fiber recovery precision and full fiber recovery; the recycled fibers are free of mechanical damage, good in quality, high in return water treatment capacity, stable and reliable in system operation, capable of saving a large amount of water treatment cost and time and the like.

The application discloses a kind of storage devices for producing burst beads, and relates to the technical field of burst bead production equipment;The device includes a processing box with a box door, a detachable storage box is provided in the processing box;A feed pipe is fixed to the top of the processing box, a first distribution pipe and a second distribution pipe are connected to the sidewall of the feed pipe;A camera is provided on the inner bottom wall of the feed pipe, a first air pump is provided in the processing box, and the air outlet of the first air pump is connected to two groups of air blowing pipes facing the two distribution pipes, respectively, for blowing burst beads into the corresponding distribution pipe according to the particle size identified by the camera;A shaping wheel with a shaping groove is rotatably arranged in the distribution pipe, the shaping wheel is provided with an air storage cavity and is connected to a first air blowing pipe inclined to the inner wall of the pipe;The application integrates grading and sorting, roller pressing, multi-stage drying and storage into one, effectively solves the problems of incomplete dehumidification and insufficient roundness of burst bead accumulation, and realizes step-by-step reuse of air source, complete airtightness and low breakage, effectively improves the quality and production efficiency of burst bead storage.

The invention belongs to the technical field of medical stents, and particularly relates to an anti-tumor degradable ureteral stent with a bionic structure and a preparation method of the anti-tumor degradable ureteral stent. The anti-tumor degradable ureteral stent with the bionic structure comprises a single-layer tubular stent body or a multi-layer tubular stent body, the single-layer tubular stent body is made of aliphatic polyester polymers and drugs, the multi-layer tubular stent body comprises an inner tube and an outer tube which are coaxial, the inner tube is made of polyvinyl alcohol and drugs, and the outer tube is made of polyethylene glycol. And the outer pipe is made of an aliphatic polyester polymer. The anti-tumor degradable ureteral stent with the bionic structure provided by the invention has flexibility required for adapting to dynamic peristalsis of the ureter, is not easy to cause mechanical damage to urinary tract tissues, has dual functions of anti-tumor activity and surface wettability, can realize synchronous matching of a drug release rate and a material degradation rate, and has a good application prospect. Meanwhile, the mechanical anti-fatigue performance of the stent is not sacrificed.

The utility model discloses a persimmon automatic peeling machine positioning mechanism, especially relates to persimmon peeling machine technical field, and it is including: bottom plate, the bottom plate top fixedly installed fixed vertical board, be rotated and be connected with the rotary disc through the bearing on the fixed vertical board, one side of the rotary disc is fixedly installed two adsorption tubes, two adsorption tubes one end all are fixedly installed two adsorption heads, the other end of adsorption tube is equipped with negative pressure pump, and the suction end of negative pressure pump is fixedly installed with suction tube, movable plate, the movable plate is located in the adsorption tube one end outside of upper portion, the side of movable plate near adsorption tube is equipped with four clamping rods, and the center of four clamping rods coincides with the center line of adsorption tube of upper portion, and be equipped with adjusting assembly between clamping rod and movable plate. The utility model provides a kind of persimmon automatic peeling positioning mechanism that is integrated with accurate positioning, non-destructive fixing, efficient peeling and automatic blanking, effectively overcome the deficiency of prior art.

The invention relates to the technical field of power system operation control, and discloses an AC / DC hybrid micro-grid power router power regulation and control system, which comprises a main circuit module, an acquisition module and a calculation control module. The calculation control module integrates a digital signal processing unit and a field programmable gate array unit. The digital signal processing unit calculates a DC bus transient energy elasticity index, a mechanical torque margin and an electromechanical resonance risk index, and synthesizes a positive sequence virtual impedance instruction and a negative sequence virtual impedance instruction. And the field programmable gate array unit executes high-frequency sampling and extracts frequency characteristics of the high-voltage alternating-current power transmission network, and generates a driving pulse signal according to the positive-sequence virtual impedance instruction and the negative-sequence virtual impedance instruction. And the driving pulse signal regulates and controls the port impedance characteristic of the main circuit module to the high-voltage alternating-current power transmission network. According to the invention, cooperation of power grid frequency support and equipment mechanical safety is realized.

The application relates to a negative electrode sheet and application thereof, and the negative electrode sheet comprises a negative electrode current collector, a composite active layer located on at least one side of the negative electrode current collector, a protective film located on the side of the composite active layer away from the negative electrode current collector, and a passivation layer located between the negative electrode current collector and the composite active layer; the composite active layer comprises a three-dimensional skeleton with holes and a liquid alloy filled in part of the holes of the three-dimensional skeleton; the three-dimensional skeleton has a resilience rate of greater than or equal to 80%, and an average pore size of 100-200 nm; the liquid alloy has a melting point of less than or equal to 25 DEG C; the protective film comprises zero-dimensional nanocarbon materials and lithium diffusion materials; and the initial density of the protective film is greater than or equal to 85%. The negative electrode sheet has low volume expansion, the corrosion degree of the negative electrode current collector is low, and the creep of the material can be controlled to be Coble creep controlled by grain boundary diffusion, so that the cycle performance and safety of a corresponding solid-state battery are comprehensively improved.

The utility model discloses a saliva drainage negative-pressure suction device which comprises an adsorption assembly, a drainage assembly and a drainage assembly. The adsorption assembly comprises an adsorption pipe and a conveying pipe communicated with the adsorption pipe; a fixing member; the drainage tube is connected to the outer part of the adsorption tube through a plurality of fixing pieces; the flushing assembly comprises a flushing pipe, and the flushing pipe is connected to the outer side of the drainage pipe; through cooperation of the flushing assembly and the adsorption assembly, the suction function and the flushing function are achieved at the same time, oral cavity cleaning is achieved, and bacterial infection is avoided; through the arrangement of the special bending structure, the device can be attached to the cheek of a patient and is not affected by a body position; by arranging the drainage tube, the adsorption assembly is prevented from directly contacting the mucous membrane to cause injury.

The invention discloses an electro-optical crystal wafer slide lossless fixing device with uniform stress and a preparation method thereof.The device comprises a horizontal plate and a vertical plate which are of an L-shaped structure, a first through hole is formed in the middle of the horizontal plate, a sinking groove is formed in the edge of the first through hole, and four adsorption blind holes are evenly formed in the surface of the sinking groove; the adsorption blind hole communicates with a pneumatic pipe connector through an air path, and the pneumatic pipe connector is formed in the side wall of the horizontal plate and connected with a negative pressure pump through a pneumatic pipe. The vertical plate is provided with four second through holes arranged in a rhombic array, and the four second through holes are used for connecting standard optical mechanical parts. Through the reasonable and reliable structural design, the electro-optical crystal wafer slide and the standard optical displacement platform can be combined, the electro-optical crystal wafer slide and the standard optical displacement platform are a good connecting part between the electro-optical crystal wafer slide and the standard optical displacement platform, and the electro-optical crystal wafer slide and the standard optical displacement platform have the advantages of being small in damage to the slide, large in light passing area ratio and good in adaptability and universality.