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31results about How to "Easy to hurt" patented technology

Extensible and retractable inner supporting tool

The invention discloses an extensible and retractable inner supporting tool. One end of a left-handed screw is installed in a screw installation hole in the plane geometric center of a supporting plate, and the left-handed screw is in rotating fit with the screw installation hole. A left-hand thread at the other end of the left-handed screw is installed in a threaded hole in the center at one endof a sleeve. One end of a right-handed screw is installed in a screw installation hole in the plane geometric center of the other supporting plate, and the right-handed screw is in rotating fit with the screw installation hole. A right-hand thread at the other end of the right-handed screw is loaded in a threaded hole in the center at the other end of the sleeve. The extensible and retractable inner supporting tool has extending and retracting functions; in a shortened state, the extensible and retractable inner supporting tool can be put into a shell and then extends to support a cylinder, rigid restraining to the cylinder is achieved, and the welding deformation is reduced; and by means of stress relief annealing heat treatment through the belt tool, deformation stress is eliminated, andtherefore the cylinder circular degree after welding is guaranteed, and the circular degree of the shell is reduced to 2.5 mm from 10 mm.
Owner:XIAN AEROSPACEMOTOR MACHINE FACTORY

Hole eye tangent vibration type seed feeding method and device

The invention discloses a hole eye tangent vibration type seed feeding method and a hole eye tangent vibration type seed feeding device and relates to the field of sowing machines. The hole eye tangent vibration type seed feeding device is the seed feeding part of a sowing machine. The smooth surface of the seed feeding part has a plurality of seed like hole eyes which are bigger than seeds; the surface of the seed feeding part is inclined with the hole eye surface upward and is buried in seeds in a seed feeding chamber; the seed feeding chamber and the seed feeding part vibrate tangently along a hole eye mouth face, and the amplitude and frequency of the vibration are high enough to promote the seeds on the surface of the seed feeding part to slide; the seed discharging part moves up along the direction of the tangent of the surface and moves out of the seed feeding chamber from the hole eyes; and each hole eye is filled with one seed, and the outside of the hole eye mouth face has no seeds. If the difference between the sizes of the seeds is not big, a seed charging rate and a single seed rate both reach 100 percent and seeds are not damaged. The seed feeding method has high precision, ensures simple structure and easy operation and has high efficiency.
Owner:南通致远船舶设计有限公司

Method for preparing natural friction agent by utilizing macadimia nut shell

The invention discloses a method for preparing a natural friction agent by utilizing a macadimia nut shell. The method comprises the following steps: crushing the macadimia nut shell; soaking the obtained fine powder with an organic solvent; performing suction filtration and then repeatedly soaking; drying the filter residue, thereby obtaining degreased macadimia nut shell powder; adding a decolorizing agent; adopting an ultrasonic-assisted extraction method for decolorizing, repeating, filtering, abandoning filtrate, collecting the filter residue and drying, thereby obtaining the decolorized macadimia nut shell powder; performing superfine grinding, adding aqueous solution of sodium metabisulfite, soaking, filtering and drying the filter residue, thereby obtaining the natural friction agent. The natural friction agent made from the macadimia nut shell according to the invention is stable in chemical property and the pH is neutral. According to the invention, the high-content cellulose and lignin of the macadimia nut shell are taken as the main ingredients of the natural friction agent, so that the natural friction agent is harmless to tooth and body and is easy to degrade in the environment. The toothpaste made from the natural friction agent containing macadimia nut shell according to the invention has the advantage that the damage of friction agent to tooth is small so that the surface change of the tooth enamel surface is small.
Owner:JIANGCHENG ZHONGAO AGRI TECH DEV

British and American literature knowledge learning and memory assisting device

The invention provides a British and American literature knowledge learning and memory assisting device, and relates to learning assisting devices. The upper portion of the upper surface of a plate body is provided with a groove, a word group training plate is arranged in the groove, a plurality of slip grooves are arranged on the word group training plate, a plurality of slip alphabet blocks arearranged in the slip grooves, and front ends of the slip grooves are provided with a plurality of annual sliding grooves connected with the slip grooves; and the middle portions of the annular slidinggrooves are provided with word group spelling display grooves connected with the annular sliding grooves, the word group training plate above the annular sliding grooves is provided with a notch, anda word group reminding device is arranged in the notch. The British and American literature knowledge learning and memory assisting device enables hand disability or cerebral palsy children to learnEnglish and assists the children to do hand rehabilitation training at the same time, thus, the English learning and rehabilitation training can be carried out together without affecting each other soas to make full use of time; and the assisting device helps the children to memorize English vocabularies and enables learning of the English vocabularies to be interesting at the same time, so thatexcessive bored learning process can be avoided.
Owner:LIAONING UNIVERSITY OF TECHNOLOGY

Controllable button-type negative pressure suction device

The invention discloses a controllable button-type negative pressure suction device, and belongs to the technical field of medical equipment. The controllable button-type negative pressure suction device comprises a suction machine, the front end of the suction machine is provided with a buffer bottle, a liquid storage bottle and two bearing brackets, the buffer bottle is connected with the suction machine through an air pressure hose, and a control mechanism is arranged in the middle of the air pressure hose and comprises a control assembly, a closing assembly, a clamping assembly and an airpressure adjusting assembly; a communication hose is arranged between the liquid storage bottle and the buffer bottle, the liquid storage bottle is provided with a liquid suction hose, one end of theliquid suction hose is provided with a liquid suction rod, the liquid storage bottle is internally provided with a filtering mechanism, the filtering mechanism comprises a filtering assembly and an unfolding assembly, and the unfolding assembly is installed in the middle of the filtering assembly. According to the controllable button-type negative pressure suction device, through the arrangement of the control mechanism, the operation difficulty of doctors can be reduced, the use is convenient, and accidents do not easily occur during an operation; through the arrangement of the filtering mechanism, medical personnel can conveniently observe sucked tissue to judge the operation progress.
Owner:WUXI MATERNAL & CHILD HEALTH HOSPITAL

Refrigerator box with deicing function

InactiveCN111457640AWith deicing functionUnfavorable storageGas treatmentLighting and heating apparatusCool storageGear wheel
The invention relates to the technical field of refrigeration, in particular to a refrigerator box with a deicing function. The refrigerator box comprises a box body. The top outer wall of the box body is provided with an installing cover through bolts. The outer walls of the two opposite side of the box body are each provided with a third slide groove. The bottom inner wall of the box body is provided with a water groove. The water groove and the third slide grooves are each internally slidingly connected with a deicing assembly. Each deicing assembly comprises a heating plate. The four sidesof the outer wall of one side of each heating plate are each provided with a blade through screws. The outer wall of the side, away from the blades, of each heating plate is provided with two first motors through bolts. Output ends of the first motors are connected with gears through keys. The refrigerator box has the advantages that ice on the inner wall of the box body can be molten through theblades, at the moment, the inner wall of the box body can be wiped through sponge on the heating plates, the troubles of manual wiping are reduced, when a refrigerator needs to be opened, a user canstart a second motor or a third motor, an upper glass panel or a lower glass panel is moved through screw rods or lead screws, and therefore the refrigerator box is opened.
Owner:CHUZHOU JIAJIAAI ELECTRICAL TECH

A retractable inner support tooling

The invention discloses an extensible and retractable inner supporting tool. One end of a left-handed screw is installed in a screw installation hole in the plane geometric center of a supporting plate, and the left-handed screw is in rotating fit with the screw installation hole. A left-hand thread at the other end of the left-handed screw is installed in a threaded hole in the center at one endof a sleeve. One end of a right-handed screw is installed in a screw installation hole in the plane geometric center of the other supporting plate, and the right-handed screw is in rotating fit with the screw installation hole. A right-hand thread at the other end of the right-handed screw is loaded in a threaded hole in the center at the other end of the sleeve. The extensible and retractable inner supporting tool has extending and retracting functions; in a shortened state, the extensible and retractable inner supporting tool can be put into a shell and then extends to support a cylinder, rigid restraining to the cylinder is achieved, and the welding deformation is reduced; and by means of stress relief annealing heat treatment through the belt tool, deformation stress is eliminated, andtherefore the cylinder circular degree after welding is guaranteed, and the circular degree of the shell is reduced to 2.5 mm from 10 mm.
Owner:XIAN AEROSPACEMOTOR MACHINE FACTORY

Water-free turbine variable circulation heat supply system

The invention discloses a water-free turbine variable circulation heat supply system and belongs to the technical field of heat supply. The whole heat supply system is a closed airtight system and comprises a heat supply system pipeline, auxiliary heat source generators and a gas power device, the heat supply system pipeline comprises a gas conveying pipeline and two sets of heat dissipation pipelines which are communicated, the two sets of heat dissipation pipelines are arranged in parallel, a plurality of auxiliary heat source generators are arranged on the heat dissipation pipelines at intervals, and the gas power device is arranged on the gas conveying pipeline. According to the water-free turbine variable circulation heat supply system, the situation that heat cannot be supplied due to breakage caused by pipeline freezing in a low-temperature environment is avoided, meanwhile, space is saved, installation is easy, accidents such as expansion cracking and explosion caused by too large pressure are avoided, safety performance is guaranteed, the situation that the heat supply capacity is reduced due to the scaling phenomenon is avoided, and in addition, air in the system is relatively independent and forms a circulating system, so that the system is not influenced by external atmospheric pressure and altitude, can be used in high-altitude areas, and is wide in application range.
Owner:吉林省中暖节能科技有限公司

Comprehensive acupuncture and massage treatment equipment

The invention relates to the technical field of medical care, in particular to comprehensive acupuncture and massage treatment equipment. The comprehensive acupuncture and massage treatment equipment comprises a device body, wherein the device body comprises a bottom plate, a clamping assembly and an extending assembly; the clamping assembly is fixedly installed at the left end of the outer surface of the upper end of the bottom plate; the clamping assembly comprises a concave frame, a U-shaped clamping frame, three spring sets, fixing barrels, L-shaped hanging rods and an elastic band, wherein the concave frame is fixedly installed on the left side of the upper end of the bottom plate; the U-shaped clamping frame is movably installed at a notch in the concave frame; three spring sets are respectively fixedly installed between the U-shaped clamping frame and the concave frame; and two sets of fixing cylinders are respectively fixedly installed at the positions, which are close to the front end and the rear end, of the outer surface of the upper end of the concave frame. According to the comprehensive acupuncture and massage treatment equipment disclosed by the invention, the legs of a patient can reach a naturally relaxed position, discomfort is reduced, leg muscles can be fully and evenly massaged, the comprehensive acupuncture and massage treatment equipment device body can be adjusted according to the requirements of the patient, and a massage effect and experience feeling are improved.
Owner:李建华
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