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38results about How to "Reduce man-made damage" patented technology

Preparation and application methods of carbon fiber mat surface antioxidation coating

The present invention provides preparation and application methods of a carbon fiber mat surface antioxidation coating; after chemical modification of matrix resin by use of an inorganic acid salt, the matrix resin is used as a precursor for blending with inorganic powder, and then coats the surface of a carbon fiber mat thermal insulation material by a brush, and then a high temperature coating with antioxidation and thermal erosion resistance is prepared by curing, carbonization, high temperature and other processes. The raw materials are easy to get, the optional range is wide, the preparation process is simple, the cost is low, the prepared coating structure reduces the specific surface area of the carbon fiber mat thermal insulation material, and further suppresses the aerobic oxidation phenomenon of the carbon fiber mat thermal insulation material at a low temperature, in the environment of high temperature and inert atmosphere, the material surface has a certain of thermal erosion resistance, the service life and long-acting thermal insulation ability of a carbon fiber mat can be prolonged, in addition, the slag-off phenomenon of the coated carbon fiber mat in the use process is suppressed, and the application scope of the carbon fiber mate is broaden.
Owner:GANSU HAOSHI CARBON FIBER

Water supply device for field pipeline irrigation

A water supply device for field pipeline irrigation belongs to the technical field of agricultural irrigation and is in a semi-fixed split combined structure. A lower bolt is disposed in a concrete pipe, a connector, a water outlet and an upper bolt are disposed at the top end of the lower bolt, and an upper bolt cap, a fastener and an anti-inversion fastener are disposed on a bend of the upper bolt. A start and stop handle is disposed inside the upper bolt. A plurality of self-closing water division wings are disposed on a mushroom-shaped edge of a water stop valve. A boss and a sleeve are disposed at the center of the lower surface of the water stop valve. A float chamber at the top end of a screw is reserved in the sleeve, and a float is disposed in the float chamber. A plurality of lower exhaust holes are reserved on the periphery of the lower end of the float chamber. A deformed nut used with the sleeve of the water stop valve is used for fastening the float chamber and the water stop valve together through a clamping disk. The screw is disposed in a nut thread insert supported by a support bar, a reducing connecting pipe is connected to the outer end of the support bar, and the reducing connecting pipe is sleeved to the upper portion of the lower bolt and the lower portion of the lower bolt to form a combined lower bolt. A lower pipe opening of the lower bolt is connected with a sewer tee water outlet pipe, and the upper bolt and the lower bolt form the water supply device.
Owner:PINGYUAN HENGXIN WATER TECH

Method for realizing yield increase of flue-cured tobacco through densely-sown seedling raising and optimized transplanting

The invention discloses a method for realizing yield increase of flue-cured tobacco through densely-sown seedling raising and optimized transplanting. According to the method, tobacco seedlings are cultivated by a floating-disc densely-sown method, water is impounded by a rainwater collecting technology so as to fight a drought, and the tobacco seedlings can be transplanted at an appropriate period by using a shaft well type young seedling transplanting method. The method is characterized by comprising the steps: carrying out floating-disc densely-sown flue-cured tobacco seedling raising by increasing the quantity of holes of floating discs so as to culture the tobacco seedlings with four leaves and one core; carrying out optimized tobacco seedling transplanting, carrying out subtillage winter resisting, land preparation, band application and ridging in good time, then, transplanting the tobacco seedlings with four leaves and one core by the shaft well type flue-cured tobacco young seedling transplanting method; and carrying out management according to the conventional method after transplantation. By adopting the method, under usual circumstances, the time for seedling raising is shortened by 30 days, and labor for seedling raising and transplanting is saved; and the transplanting time is advanced by 15 days, and the yield of tobacco leaves is increased by 16kg per mu. According to the method, for plateau canyon regions where tobacco is suitable for being planted but often encounters spring drought, the problems that the seedling raising cost of the flue-cured tobacco is high and transplanting is difficult during spring drought can be solved, the production cost investment of the flue-cured tobacco can be reduced, and the yield and output value of the flue-cured tobacco are increased.
Owner:QINGLONG TOBACCO BRANCH OF QIANNAN PREFECTURE

Negative pressure suction cup type humerus head taking-out device

A negative pressure suction cup type humerus head taking-out device comprises a support, a negative pressure connecting pipe is arranged on the support in a penetrating mode, the negative pressure connecting pipe is sleeved with a rotary knob on the upper side of the support in a sliding mode, the rotary knob can slide in the axial direction of the negative pressure connecting pipe, a first gear is connected to the lower side of the rotary knob, and a second gear and a third gear are arranged on the rear side and the right side of the first gear respectively, the third gear is arranged below the second gear, the second gear and the third gear are fixedly connected with a first transmission rod and a second transmission rod respectively, and the lower end of the first transmission rod and the lower end of the second transmission rod are connected with a first bevel gear and a second bevel gear respectively. By means of the characteristic that the surface of the cartilage of the humerus head is smooth, adsorption of the humerus head and the device is achieved through the suction cup, artificial injury to the surrounding tissue of the shoulder joint is reduced, meanwhile, the humerus head can be completely taken out, the risk of humerus head necrosis is reduced, and postoperative rehabilitation of a patient is facilitated.
Owner:SHANGHAI CITY PUDONG NEW AREA GONGLI HOSPITAL

Asphalt pavement disease quick temperature compensation device and process thereof

InactiveCN106835923AOptimize layoutGuaranteed Thermal BondingRoads maintainenceDiseaseRoad surface
The invention relates to an asphalt pavement disease quick temperature compensation device and a process thereof. An existing pavement repairing process has the defects of poor binding effect, easiness in destruction in relatively short time, huge destruction of asphalt in used asphalt mixture, long construction period and the like. The device disclosed by the invention comprises a vehicle head and a vehicle body, wherein a road roller and a hoisting device are arranged at the front part of the vehicle head; the tail part of the vehicle body is connected with a microwave-aided carriage through a telescopic rod; a microwave transmitter is arranged inside the microwave-aided carriage; an anti-radiation screen is arranged on the periphery of the lower end of the microwave-aided carriage; a microwave tube high-voltage power supply of the microwave-aided carriage is arranged above the vehicle body and close to the tail part. The temperature compensation device is moved onto a pot hole, the microwave-aided carriage is adjusted to be above the repairing position, and the microwave tube power supply is started for microwave heating repairing. The quick temperature compensation device can uniformly act on the pavement surface, does not require specific pouring sealant for crack repairing, and does not need large-area pavement excavation, so that artificial destruction of old pavement can be furthest reduced in the repairing process.

Sheathed circular truncated cone type filter press

The invention discloses a sheathed circular truncated cone type filter press which comprises an outer circular truncated cone-shaped sleeve and an inner circular truncated cone-shaped sleeve, wherein the inner circular truncated cone sleeve is arranged at the middle part of the outer circular truncated cone sleeve; a filter press rubber sleeve is arranged on the inner wall of the outer circular truncated cone-shaped sleeve; a plurality of small holes are formed in the inner circular truncated cone-shaped sleeve; filtering cloth is arranged on the outer wall of the inner circular truncated cone-shaped sleeve; air inlet pipes are arranged at two sides of the outer circular truncated cone-shaped sleeve respectively; an inner sleeve water outlet pipe is arranged at the bottom of the inner circular truncated cone-shaped sleeve; a discharging plate is arranged at the upper part of a circular truncated cone-shaped filtering chamber; a plurality of discharging holes are formed in the discharging plate; a feeding pipe which is communicated with the inside part of the outer circular truncated cone-shaped sleeve is arranged at one side an upper cover; high pressure air inlet pipes which are respectively communicated with the inside parts of the inner circular truncated cone-shaped sleeve and the outer circular truncated cone-shaped sleeve are arranged at the other side of the upper cover; and a water outlet pipe of the filter press machine connected with an inner sleeve water outlet pipe is arranged on a bottom cover. The filter press dehydration is implemented through high pressure gas; fine coal grains are retained inside the circular truncated cone-shaped chamber to be formed as filter cakes; the filter cakes are discharged by opening the bottom cover automatically; the whole filter press process is simple and easy to implement with few maintenance and high efficiency; the solid and liquid separation effect is good; and the energy consumption is low.
Owner:CHINA UNIV OF MINING & TECH

Ratchet wheel stop type lifting positioning conveying device

The invention relates to a ratchet wheel stop type lifting positioning conveying device, and belongs to the technical field of metallurgical machinery. The ratchet wheel stop type lifting positioning conveying device comprises a lifting machine frame, a ratchet wheel stop type lifting transmission device, a slicing device, a guide baffle device and a plate lifting device, wherein the lifting machine frame is arranged on the ground; the ratchet wheel stop type lifting transmission device is installed on the lifting machine frame; the plate lifting device is installed on the lifting machine frame; the guide baffle device is installed on the plate lifting device and located on the front portion of the ratchet wheel stop type lifting transmission device; the slicing device is installed on the lifting machine frame. The ratchet wheel stop type lifting positioning conveying device can relieve labor intensity of workers, can reduce manual damage to a workpiece and has better applicability. Pneumatic and hydraulic driving methods are adopted, a copper anode plate is stressed evenly and stably, and work operation is safe and reliable. The whole mechanism assembly is easy to dismount and repair, parts used are common, professional attendance is not needed, and the cost is low. The labor cost can be lowered, and economic benefits are improved for enterprises.
Owner:KUNMING UNIV OF SCI & TECH

Observation device for obstetrical department

The invention discloses an observation device for the obstetrical department. The observation device comprises an elastic supporting frame which is of a V-shaped structure. The elastic supporting frame is composed of two sections, detachable assemblies are installed at the sections of the elastic supporting frame, an air spring is transversely connected to the part, close to the bottom, of the elastic supporting frame, and the two ends of the air spring are fixedly connected with the elastic supporting frame. A hanging ring is connected to the outer side face of the bottom of the elastic supporting frame and fixed to the elastic supporting frame, arc-shaped expanding pieces are arranged at the tail end of the elastic supporting frame, a pressure sensor is arranged on the outer side face of one expanding piece and fixed to the corresponding expanding piece, and an LED lamp is arranged on the inner side face of the expanding piece provided with the pressure sensor and connected with the corresponding expanding piece through a lamp groove formed in the corresponding expanding piece. By means of the observation device for the obstetrical department, observation can be better carried out, infection can be avoided, operation is easy, controllability is good, the injury caused by the overlarge expanding extent to a patient can be effectively avoided, man-made injuries caused in the examining process can be effectively reduced, and the detection accuracy can be higher.
Owner:CHENGDU JIAMEIJIA SCI & TECH

Agricultural science and technology planting greenhouse

The invention belongs to the technical field of greenhouses, and particularly relates to an agricultural science and technology planting greenhouse. The greenhouse comprises a greenhouse frame. Plastic films are symmetrically laid at the top of the greenhouse frame; a rack is arranged at one end of the greenhouse frame; sliding rods are installed at the two ends of the greenhouse frame respectively; sliding sleeves are slidably connected with the side faces of the sliding rods respectively; motors are installed on the two sliding sleeves close to the rack respectively; the ends of the motors are connected with gears matched with the rack through rotating shafts; the free ends of the rotating shafts are connected with rotating rods; the other ends of the rotating rods are rotatably connected with the sliding sleeves away from the rack; and the bottom ends of the side walls of the rotating rods are connected with the top ends of the plastic films. According to the agricultural science and technology planting greenhouse, by arranging a structure capable of automatically winding the plastic films at the top of the greenhouse, artificial damage generated in the opening and closing process of the plastic films is reduced, convenience and rapidness are achieved, meanwhile, the stability of the greenhouse in the using process is improved, the service life of the greenhouse in the usingprocess is prolonged, and meanwhile the greenhouse is more intelligent in the using process due to the arrangement of a temperature sensor.
Owner:ANHUI HUATENG AGRI TECH CO LTD

Door lock provided with anti-forgetting article placing table

The invention relates to a door lock provided with an anti-forgetting article placing table, and relates to the technical field of mechanical locks. The door lock is installed on a door panel and a door frame; the door lock comprises a lock body mechanism and a storage table mechanism; the lock body mechanism comprises a lock cylinder assembly and a lock catch; the lock cylinder assembly comprisesa lock cylinder; the end, close to the lock catch, of the lock cylinder is provided with a bolt; the lock cylinder is provided with a pin hole; the lock cylinder assembly and the lock catch are installed on the door panel and the door frame respectively; and the article placing table mechanism comprises an article placing plate, a rotating shaft for driving the article placing plate to rotate, aplug pin rod which moves up and down along with rotation of the rotating shaft, and a bottom plate which is fixedly arranged below the rotating shaft. When the article placing plate is in a lowered state, one end of the plug pin rod is inserted into the pin hole, and the article placing plate is placed on the bottom plate; and when the article placing plate is retracted, the plug pin rod exits thepin hole. The door lock has a good reminding function, is simple in structure and cheap to install, and can realize opening or closing of the door lock without the need to lower or retract the article placing plate when no article needs to be placed.
Owner:肖逸

Production line control system and its control method

The invention discloses a production line control system and a control method thereof and relates to the technical field of control. The production line control system comprises a programmable logic controller (PLC) system and a main server. The PLC system comprises multiple work stations connected to the main server. The production line control system further comprises a radio frequency identification device (RFID) radio frequency read-write system. The RFID radio frequency read-write system comprises information reading points and RFID labels, wherein the information reading points are arranged on production lines, and multiple tool plates are further arranged on the production lines, and the RFID labels are written on the multiple tool plates. The information reading points read data information in the RFID labels on the tool plates and transfers the data information to the main server. Due to the fact that the production line control system enables the PLC system and the RFID radio frequency read-write system to be compatible, control of a production device and acquisition of the product data information are synchronously performed, information transmission between two sub-systems is achieved, and the purpose of common control of the production line is achieved.
Owner:CHENGDU QIANJIA TECH CO LTD

Freight elevator capable of automatically loading and unloading cargoes

The invention discloses a freight elevator capable of automatically loading and unloading cargoes. The freight elevator comprises a compartment, wherein a storage rack is arranged in the compartment,a plurality of cargo carrying layers are arranged on a rack body, an optoelectronic switch is arranged at the position, corresponding to each cargo carrying layer, on the rack body, and each cargo carrying layer comprises a bottom rack, a bracket, a driving motor, a controller, a driving chain wheel, a driven chain wheel and a transmission chain; on the rack, a plurality of transmission rods are distributed in the length direction of the rack; the driving chain wheel and the driven chain wheel are respectively close to the two ends of the bracket, the transmission chain is wound around the driving chain wheel and the driven chain wheel, and the driving motor is connected with the driving chain wheel; on two sides of the cargo carrying layers, a group of photoelectric sensors are arranged at the positions corresponding to the transmission rods, the driving motor and the photoelectric sensors are both connected with the controller, and meanwhile the controller is connected with a cargo elevator control system. The freight elevator is simple in structure and can achieve automatic loading and unloading, accordingly the loading and unloading efficiency is improved, and meanwhile cargo and elevator damage is avoided.
Owner:CHONGQING MACRO ELEVATOR

Sheathed circular truncated cone type filter press

A sheathed circular truncated conical filter press comprises an outer circular truncated conical sleeve (5), and an inner circular truncated conical sleeve (9) arranged at the middle part of the outer circular truncated conical sleeve (5). A filter press rubber sleeve (6) is arranged on the inner wall of the outer circular truncated conical sleeve (5). Small holes are evenly distributed on the inner circular truncated conical sleeve (9). Filter cloth (8) is arranged on the outer wall of the inner circular truncated conical sleeve (9). Air intake pipes (11) are arranged at two sides the wall of the outer circular truncated conical sleeve (5). An inner sleeve water outflow pipe (3) is arranged at the bottom of the inner circular truncated conical sleeve (9). A discharge plate (13) is arranged at the upper part of a circular truncated conical filter chamber (7). Multiple discharge holes (24) are provided in the discharge plate (13). A feeding pipe (15) entering the interior of the outer circular truncated conical sleeve (5) is arranged at one side of the upper cover (14), and high-pressure air intake pipes (18) entering the interior of the inner circular truncated conical sleeve (9) and the interior of the outer circular truncated conical sleeve (5) are arranged at the other side of the upper cover (14). A filter press water outflow pipe (1) connected to the inner sleeve water outflow pipe (3) is arranged on a bottom cover (4). The filter press dehydration is implemented by using high pressure air; fine coal grains are retained inside the circular truncated conical chamber and formed into filter cakes; the filter cakes are discharged when the bottom cover opens automatically. The whole filter press process is easy to implement, and has few maintenance and high efficiency; the solid-liquid separation effect is good; and the energy consumption is low.
Owner:CHINA UNIV OF MINING & TECH
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