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31results about How to "Simple structure improvement" patented technology

Ferromagnetic thin-film wave absorbing material with periodic structure

The invention discloses a ferromagnetic thin-film wave absorbing material with periodic structure, which consists of the medium layers and the ferromagnetic thin-film layers arranged with intervals, the ferromagnetic thin-film layer comprises N element with the mass percentage not more than 10% and the balance of Fe element. The thickness range of the ferromagnetic thin-film layer is from 100nm to 900nm. The thickness range of the medium layer is not more than 10nm. The invention controls the thickness of the thin-film wave absorbing material by changing the periodic number of the medium layer and the ferromagnetic thin-film, simply modifies the structure of the ideal magnetic screen itself, and has easy operation. The wave absorbing material has better wave absorbing properties and good absorbing bandwidth, which can satisfy the requirements of the thin absorbing electromagnetic waves in a plurality of application situations. By adopting the ferromagnetic thin-film wave absorbing material with periodic structure, when the incidence of electromagnetic waves are vertical, the reflection frequency response characteristic curve is basically the same as that before being divided into periodic structure, wherein the size of the reflectivity is reduced with certain degree at the low frequency end compared with that before being divided.
Owner:NANJING UNIV

DC/DC circuit

The invention discloses a DC / DC circuit, comprising a PWM controller, a current amplifier, a peak current comparator, an error amplifier, a main switch, a synchronous switch and also an operational amplifier. The non inverting input end of the operational amplifier is used for coupling with input voltage or voltage reference, or used for coupling with the input voltage and the voltage reference; the inverting input end of the operational amplifier is used for coupling with the voltage reference or ground, and the output end thereof is connected with the non inverting input end of the error amplifier. As a DC / DC basic structure is adopted, the operational amplifier leads the non inverting input end voltage of the error amplifier to follow the input voltage linearly, thus realizing the linear following relation between the output voltage and the input voltage. As the DC / DC basic structure is adopted, the circuit provided by the invention has the advantages of DC / DC to guarantee the high efficiency of the output of the voltage and great driving capacity.
Owner:BYD SEMICON CO LTD

Slanting friction wheel transmitter

The invention discloses a slanting friction wheel transmitter. The slanting friction wheel transmitter comprises a transmitting tube, an L-shaped bend, two friction wheels, an image transmitter, a transmitter main control panel and a friction-wheel electric speed controller; the transmitting tube, the L-shaped bend and a transmitting underframe are fixedly connected in sequence, the friction wheels are symmetrically fixed on the transmitting underframe, the image transmitter, and the transmitter main control panel and the friction-wheel electric speed controller are fixed on the transmitting underframe from top to bottom; the slanting friction wheel transmitter further comprises a cartridge, a cartridge seat, a driving plate, a feeding base plate, a driving motor and slanting struts whichare fixedly and sequentially connected from top to bottom, the output shaft of the driving motor penetrates the feeding base plate to be connected with the driving plate, a taper spring and an isolation plate are fixedly connected onto the cartridge seat and close to one end of a gun barrel, the slanting struts are fixedly connected with the transmitting underframe to allow a storage and feeding device to form a certain angle with the transmitting tube, and a cartridge dropping port communicated with the L-shaped bend is formed in the feeding base plate. By the arrangement, a ball which is 17mm in diameter can be transmitted continuously at a certain frequency, jamming of cartridges is greatly reduced, an d the slanting friction wheel transmitter is reasonable in stress, simple and reliable in structure and easy to control.
Owner:NANJING UNIV OF SCI & TECH

Full-service-life propeller hub structure

The invention provides a full-service-life propeller hub structure. The full-service-life propeller hub structure comprises a propeller hub center piece, a blade spindle, a propeller clamp and blades,wherein the blade spindle is connected with the propeller hub center piece and the propeller clamp, the blades are arranged on the tail end of the propeller clamp, a first bearing, a second bearing and a third bearing are successively arranged on the blade spindle along the tail end of the propeller clamp, the blade spindle is provided with a step surface, and the second bearing and the third bearing are respectively arranged on two sides of the step surface. Two mounting bearings of a helicopter rotary wing propeller hub are used for sharing a centrifugal force of the rotation of the propeller blades, so that the service life of the bearing is greatly prolonged, and the full-service-life use of an unmanned helicopter can be satisfied.
Owner:重庆驼航科技有限公司

Female health-care massaging appliance

The invention relates to a female health-care massaging appliance. The female health-care massaging appliance comprises an air bag (1), a one-way valve (2), a vent valve (3), a framework (4) and a sponge body silica gel layer (5) and is characterized in that the framework (4) is strip-shaped, one end of the framework (4) is connected with the air bag (1) through the one-way valve (2) and the vent valve (3), the periphery of the framework (4) is wrapped with the sponge body silica gel layer (5) in a sealed mode, the framework (4) is of a hollow strip-shaped structure, and air outlet holes are uniformly formed in the framework (4). The female health-care massaging appliance is reasonable in design, convenient to use, very simple in structure improvement, can be adjusted in sized by pinching and pressing performed by a user and achieves a good user experience.
Owner:曾广标

Rice grading and fine selection screen

The invention discloses a rice grading and selecting sieve, which is composed of a power mechanism arranged in a frame and a grading and selecting mechanism arranged in a sieve body above the frame. The power mechanism includes a motor in the frame, a speed regulating mechanism, Transmission belt, bridge transmission mechanism, three sets of eccentric rotary mechanism, grading and selection mechanism include sieve grid, flow guide plate, discharge hopper, front sealing plate, feed hopper and receiving hopper in the sieve body. There are five layers of sieve grid. The diversion flow plate is set under each layer of sieve grid, the discharge hopper is set on the lower side of the second to fifth layer of sieve grid and the lower side of the flow guide flow plate, and a discharge port is set next to the first layer of screen to discharge the bran powder in the pipeline. Stickers are screened out. The invention can make the processed rice not mixed with bran powder cohesive matter, and the rice quality is better.
Owner:YONGNING BRANCH OF GUANGXI LITUO AGRI DEV CO LTD

Contact box for switch cabinet

ActiveCN101478120BEliminates phenomena prone to persistent coronaEliminates the phenomenon of persistent coronaShutters/guards preventing contact accessBusbarSwitchgear
The invention provides a switch cabinet-used contact box, which comprises a tubular insulator with one open end and the other closed end. A bedplate joining opening is formed on the lower part of the tubular insulator. A continuous manager used for accommodating a busbar is arranged on the upper annular wall of the tubular insulator in the radial direction. The continuous manager is communicated with an intracavity. An embedded part for installing a stationary contact member is arranged at the top of the intracavity. The invention is characterized in that a silicone rubber ring is arranged onthe bedplate joining opening; a non-magnetic metal cylindrical shielding layer is arranged on the inner wall of the intracavity of the tubular insulator below the continuous manager; the non-magneticmetal cylindrical shielding layer is connected with the embedded part for installing the stationary contact member through a conducting wire. The product eliminates the phenomena that as an air gap exists between the stationary contact member and the inner wall of the contact box, discharge is initiated easily, and continuous coronae is generated; the curvature radius is increased so that electrical field energy is distributed along the shielding layer, thereby enabling uniform electric fields to be formed. In addition, the silicone rubber ring is favorable for eliminating the air gap betweenthe contact box and a joining holder thereof, thereby eliminating the gap discharge phenomenon.
Owner:浙江省开化七一电力器材有限责任公司

Improved structure of lifting oil cylinder block one-way valve

The invention discloses an improved structure of a lifting oil cylinder block one-way valve. The improved structure comprises a cylinder block. An oil cavity is formed in the cylinder block, a cavity opening of the oil cavity is formed in one side of the cylinder block, a valve rod is installed in the oil cavity in a sliding mode, a valve bush is installed on the valve rod, an oil outlet is formed in the top of the cylinder block, a cylinder barrel is installed on the cylinder block, a piston is vertically installed in the cylinder barrel in a sliding mode, a piston rod is installed in the piston, a buffer valve bush is installed in the piston rod, a buffer plunger is arranged in the buffer valve bush, the bottom end of the buffer plunger stretches into the oil outlet of the cylinder block, a valve port communicated with the oil cavity is vertically formed in the top, on one side of the oil outlet, of the cylinder block, a plug is installed on the top of the valve port, a vertical through cavity is formed in the plug, a steel ball is movably arranged at the joint of the valve port and the oil cavity, and the steel ball can plug the joint of the valve port and the oil cavity and the through cavity of the plug due to fact that the diameter of the steel ball is large enough. The improved structure is simple in improvement and ingenious, the one-way valve, a spring and a spring seat are removed, the valve bush is shortened, the purpose is well achieved only through the steel ball and the plug, cost is lowered, and the good effect is achieved.
Owner:HEFEI HAIYUAN MACHINERY

High-efficiency plastic mixer

The invention discloses a high-efficiency plastic mixer. The high-efficiency plastic mixer comprises a support and a material mixing barrel installed on the support. A stirring paddle is installed in the material mixing barrel. The stirring paddle is connected to a stirring shaft. The stirring shaft is coaxially connected to a motor. A rotation disc is connected to the stirring shaft. The rotation disc is located above the stirring shaft. The upper surface of the rotation disc is an inclined surface. Through installation of the rotation disc on the stirring shaft and design of the inclined upper surface of the rotation disc, materials enter into the material mixing barrel and then fall on the rotation disc, and under the action of a rotation force of the rotation disc, the materials can be spread around so that stirring mixing efficiency is greatly improved and material mixing uniformity is greatly improved.
Owner:SICHUAN AVIATION TUBE IND CO LTD

High temperature gas valve

The invention discloses a high-temperature gas valve, which relates to the technical field of attitude and track control of aerospace vehicles. The attitude of the aircraft can be adjusted to enter a proper flight track through the control of the valve. By applying power to the linear motor in the forward or reverse direction, the moving coil drives the valve stem to move forward and backward, so as to control the movement of the balance ball head on the valve stem in the split cavity to form the left or right chamber. When the left chamber is connected to the high-pressure gas exhaust channel, high-pressure gas enters the exhaust channel from the left chamber and is discharged; when the right chamber is connected to the high-pressure gas channel, high-pressure gas enters from the right chamber through the jet channel working status. The control system can adjust the intake of high-pressure gas according to the flight status of the aircraft, so that the attitude of the aircraft can enter the proper flight track in a short period of time. The invention has the characteristics of small size, fast response and easy control, can meet the maneuverability, flexibility and high-precision requirements of aerospace vehicles, and improves safety guarantee.
Owner:LINQUAN AEROSPACE MOTOR CO LTD

Simple ratchet spanners

InactiveCN1644323AForward and reverse rotationRealize continuous operationSpannersWrenchesEngineeringWrench
A simple ratchet wrench is composed of a main body consisting of a head with a through hole and a turning ring fixed in said through hole. It features that several sloped surfaces are made on the inner surface of said through hole and each sloped surface has a radial roller in contact with the smooth peripheral surface of said turning ring.
Owner:刘松土

Forming mould for ecological wood external wall panel with textures

The invention relates to a forming mould for an ecological wood textured external wall panel with textures. The forming mould sequentially comprises a mould body, a transition plate, a support plate,a first mouth mould, a second mouth mould and a water jacket, wherein a forming cavity is formed in the support plate, the first mouth mould and the second mouth mould, and an inlet of the mould bodyis machined into a circular arc with the depth of 40 mm through turning; and the central axis of the forming cavity and the central axis of a material flow runner in the mould body are arranged in a staggered mode, a material flow runner in the transition plate is an inclined runner, and the inclined runner in the transition plate enables the forming cavity to communicate with the material flow runner in the mould body. The forming mould is simple in structural improvement, practical and good in product forming effect, and has good practical use and popularization value.
Owner:湖北星科模具有限公司

Alcohol-based fuel reaction tank with cleaning detection function

The invention relates to an alcohol-based fuel reaction tank with cleaning and detecting functions. The alcohol-based fuel reaction tank comprises a tank body, wherein an alcohol-based fuel inlet anda tank body internal pressure display device are arranged at the top of the tank body, an alcohol-based fuel outlet pipe is installed at the bottom of the tank body, a liquid suction pump is installedon the alcohol-based fuel outlet pipe, a cleaning cavity is formed in the upper portion in the tank body, a water pipe is connected to the upper portion of the cleaning cavity towards the outside, aplurality of cleaning spray heads are arranged downwards at the bottom of the cleaning cavity in an arc shape, all the cleaning spray heads are used for washing the inner wall and the bottom of the tank body, and the alcohol-based fuel outlet pipe is also provided with a fuel concentration detection display device. The alcohol-based fuel reaction tank is simple in structural improvement and convenient to use, and has good actual use and popularization value.
Owner:黄石仁泰新能源开发有限公司

Cow rectum air exhaust device

InactiveCN101637410BSucceeded in pumpingInhibit entrySurgical veterinaryCheck valveExhaust pipe
The invention relates to a cow rectum air exhaust device, comprising an elastic air bag, a check valve and an air exhaust pipe, wherein the elastic air bag is provided with at least an air inlet type check valve and an air outlet type check valve; the air inlet type check valve is provided with an air exhaust pipe; and the specified position of the middle section in the exhaust pipe is provided with an expanding balloon which is communicated with an air conveying pipe. The cow rectum air exhaust device utilizes the principle that the elastic air bag and the check valve are matched to realize continuous air exhausting, is provided with a controllable expanding balloon at the position of the cow rectum in which the exhaust pipe is approximately located, thus guaranteeing that the air exhaust and the closing of anus opening are carried out simultaneously, preventing the outside air from entering into the rectum and ensuring the success of air exhaust of the rectum. The cow rectum exhaustdevice has convenient operation, ensures high testing efficiency and good effect and has higher promotion value in the same field.
Owner:HENAN ACAD OF AGRI SCI

A mining dump truck and its adjustable air volume ventilation cooling system and method

A mining dump truck and its adjustable air volume ventilation and cooling system and method, the cooling system includes an upper air duct, a throttling device, a front air duct, a blower, a rear air duct, an electric control cabinet, a main generator and a rear axle housing; , the front air duct is set between the electric control cabinet and the main generator, the rear air duct is set between the blower and the rear axle housing, the main generator is connected to the blower; the upper air duct is located above the front air duct and connected to the blower, It is used to supplement a large amount of air volume; the throttling device is connected to the front air duct to supplement the air volume, and the air volume can be dynamically adjusted according to needs; the air volume flows from the upper air duct, the throttling device and the front air duct to the main generator, and then enters through the blower The rear air channel flows to the rear axle housing, and after cooling the traction motor, the heat is lost to the atmosphere. The present invention designs a ventilating and cooling system with adjustable air volume by adding an upper air channel and a throttling device, so as to solve the problem that the existing ventilating system has insufficient air intake and cannot be dynamically adjusted according to the operating environment of the mine car.
Owner:XUZHOU XCMG MINING MACHINERY CO LTD

High power optical fiber amplifier

The invention provides a high-power optical fiber amplifier, which belongs to the technical field of optical fiber amplifiers, and includes a body. Two support plate installation grooves are symmetrically opened at the front end of the body bottom plate, and two support plate installation grooves are installed in the two support plate installation grooves. A support plate, a plurality of heat dissipation grooves are arranged on the bottom plate of the body, and a heat dissipation fan is installed on the side of the bottom plate facing the inside of the body. Beneficial effects of the present invention: heat dissipation is carried out through the heat dissipation fan and the heat dissipation groove, and the heat dissipation space at the bottom is increased by using the support plate, and when the support plate is in use, the side of the high-power optical fiber amplifier equipped with a display screen and operation buttons can be lifted upwards The high position allows the operator to watch the display and operate. This high-power optical fiber amplifier is easy to improve, easy to operate, and strong in usability.
Owner:新昌县盛洋文化传媒有限公司

Cow rectum air exhaust device

InactiveCN101637410ASucceeded in pumpingInhibit entrySurgical veterinaryCheck valveExhaust pipe
The invention relates to a cow rectum air exhaust device, comprising an elastic air bag, a check valve and an air exhaust pipe, wherein the elastic air bag is provided with at least an air inlet typecheck valve and an air outlet type check valve; the air inlet type check valve is provided with an air exhaust pipe; and the specified position of the middle section in the exhaust pipe is provided with an expanding balloon which is communicated with an air conveying pipe. The cow rectum air exhaust device utilizes the principle that the elastic air bag and the check valve are matched to realize continuous air exhausting, is provided with a controllable expanding balloon at the position of the cow rectum in which the exhaust pipe is approximately located, thus guaranteeing that the air exhaustand the closing of anus opening are carried out simultaneously, preventing the outside air from entering into the rectum and ensuring the success of air exhaust of the rectum. The cow rectum exhaustdevice has convenient operation, ensures high testing efficiency and good effect and has higher promotion value in the same field.
Owner:HENAN ACAD OF AGRI SCI

Hub with tire burst emergency device

The invention discloses a hub with a tire burst emergency device which comprises an automobile hub body, the automobile hub body further comprises a rim, spokes and a spoke supporting rim, a tire beadseat is arranged in the rim through a wheel flange, an annular groove ring is further arranged at the bottom of the rim, a plurality of protrusions are evenly arranged on the annular groove ring, anda plurality of grooves is formed in the periphery of the annular groove ring. The plurality of bulges forms a tire burst emergency safety device on the annular groove ring; protrusions are formed byrolling or spinning or stamping on the annular groove ring, grooves are correspondingly formed in the other face of the annular groove ring, and therefore the protrusions and the annular groove ring form the integrated hub with the tire burst emergency device. The structure of an existing hub is changed, and the tire burst emergency safety device and the hub are combined into an integrated structure; the improved wheel hub can be engaged with a flat tire after tire burst in a grading manner, so that the flat tire cannot slide laterally, and the technical requirements that the flat tire cannotbe separated from the wheel hub after tire burst, the ground and the wheel hub are effectively isolated, and the control friction force is kept are met.
Owner:陈如诗 +1

Profile forming mold of single-layer door frame

The invention relates to a profile forming mold of a single-layer door frame. The profile forming mold is sequentially connected with an opening mold a, an opening mold b, an opening mold c, a convergence plate, a support plate a, a support plate b, a transition plate, a mold body and a core rod from front to back. The core rod is composed of a large core rod and a small core rod. The tail of thelarge core rod is embedded into the support plate a and the support plate b at the same time, the front end of the large core rod is flushed with the outer end face of the opening mold a, and the front end face of the large core rod is segmented into five independent large core rod bodies a, b, c, d and e backwards by 45 mm. The small core rod comprises a small core rod body A and a small core rodbody B. The upper end of the small core rod body A is embedded to the left lower corner of the large core rod body c, and the lower end of the small core rod body B is embedded to the right upper corner of the large core rod body b. The area defined by the large core rod body b, the large core rod body d, the large core rod body e, the opening mold a and the opening mold b is used for forming a door plate mounting cavity on a profile of the single-layer door frame. The profile forming mold is simple and practical in structure improvement and good in profile forming effect and has good actualuse and popularization value.
Owner:HUANGSHI HONGDI PLASTIC MOLD

Device for passing of lifting steel wire rope of ash hopper of wall plastering machine

The invention relates to a device for passing of a lifting steel wire rope of an ash hopper of a wall plastering machine. The device is provided with an installation seat connected with the top of anupright post of the wall plastering machine. The installation seat is composed of an installation plate A and an installation plate B. The installation plate A and the installation plate B are connected through a welded round rod. A fixed pulley A and a fixed pulley B are symmetrically arranged on the left side and the right side of the interior of the installation seat. A fixed pulley C is arranged on the portion, between the fixed pulley A and the fixed pulley B, in the installation seat. The fixed pulley C is connected with the installation plate A and the installation plate B through a wheel shaft. The installation height of the fixed pulley C is higher than that of the fixed pulley A and the fixed pulley B. Pressure sensors are correspondingly mounted at the two ends of the wheel shaft of the fixed pulley C. Arc-shaped limiting rods are also correspondingly arranged above the fixed pulley A and the fixed pulley B. The device has a simple and practical structure through improvement, has the remarkable prevention effect on the phenomenon of deviation and sticking of the lifting steel wire rope, can prevent the ash hopper from being overweight, ensures the steady and smooth operation of an ash hopper lifting device and has good application and popularization values.
Owner:湖北超顺智能科技有限公司

Wood-plastic inward opening sash sectional material forming die

The invention relates to a wood-plastic inward opening sash sectional material forming die. A mouth die a, a mouth die b, a mouth die c, a confluence plate, a support plate a, a support plate b, a transition plate, a die body and a core rod are sequentially connected from top to bottom through screws, a Z-shaped frame is arranged in a die cavity formed by the mouth die a, the mouth die b and the mouth die c, the upper end of the Z-shaped frame is divided into a plurality of sectional frames, a C-shaped clamping groove A is formed in the lower end of the sectional frame on one side, a clampinghook A is arranged on the sectional frame on the other side, a large rectangular frame is arranged in the middle of the Z-shaped frame, a clamping hook B is arranged on the frame edge of the side, close to the C-shaped clamping groove A, of the large rectangular frame, a C-shaped clamping groove B is formed in the upper end of the other side of the large rectangular frame, an inward groove is formed in the lower end of the C-shaped clamping groove B, the upper end and the lower end of the inward groove are each provided with a clamping plate, the lower end of the Z-shaped frame is divided intoa plurality of sectional frames, a C-shaped clamping groove C is formed in the outer side of the sectional frame on one side, and a C-shaped clamping groove D is formed in the corner of the upper endof the outer side of the rectangular frame on the other side. The wood-plastic inward opening sash sectional material forming die is simple and practical in structure and has good practical use value.
Owner:HUANGSHI HONGDI PLASTIC MOLD

Bottom sucking type food packaging bottle

The invention discloses a bottom sucking type food packaging bottle which comprises a glass bottle body and a bottle cover connected with the bottle body. An anti-skidding sleeve sleeves a base of the glass bottle body, and an adsorption cavity is arranged at the bottom of the anti-skidding sleeve. Due to the fact that the anti-skidding sleeve with the adsorption cavity arranged at the bottom sleeves the base of the glass bottle body, the packaging bottle can be fixedly arranged on a plane through the adsorption cavity of the anti-skidding sleeve during use of the packaging bottle, the packaging bottle is effectively prevented from skidding randomly, and consumers can use the bottle conveniently. The bottom sucking type food packaging bottle is simple in structure improvement, convenient to use and good in practicability.
Owner:MEIDE SICHUAN LAOXIANGWANG FOOD

Safety switching station with compact structure

The invention relates to a compact safety switching station, which includes a cement shell, a switch cabinet PT interval, a switch cabinet outlet interval and a manhole, and a mounting frame is installed on the upper part of the cement shell, and the station PT is installed on the mounting frame Inside, a baffle is set on the outside of the station PT, the baffle is connected with the vertical beam of the installation frame through bolts, and one or more inspection windows are embedded on the baffle. The present invention is a compact and safe opening and closing station with ingenious and reasonable design, simple structural improvement, improved construction efficiency and reduced construction cost. The present invention adds a baffle at the front end of the PT, which improves the safety of equipment operation and ensures the user's safety.
Owner:STATE GRID TIANJIN ELECTRIC POWER +2

Convenient food packaging bottle

The invention discloses a convenient food packaging bottle. The convenient food packaging bottle comprises a bottle body with a cylindrical inner cavity, wherein a movable plate matched up with an inner cavity wall is arranged at the bottom of the inner cavity of the bottle body, and the movable plate is connected with a pull bar extending to the opening of the bottle body. According to the convenient food packaging bottle, the movable plate matched up with the inner cavity wall is arranged at the bottom of the inner cavity of the bottle body, and the movable plate is connected with the pull bar extending to the opening of the bottle body, substances, especially semi-solid substances can be more conveniently taken out from the packaging bottle, and all the semi-solid substances in the bottle are likely to be taken out for use. The convenient food packaging bottle provided by the invention is simple in structural development, strong in practicality and obvious in progress effect.
Owner:MEIDE SICHUAN LAOXIANGWANG FOOD

Method for promoting ozone utilization rate and intensifying treatment effect of ozone contact-oxidation pool

The invention relates to a handling method of enhancing ozone availability ratio, reinforced treatment effect of the ozone contact oxidation pond. The invention solves the present problem: organic pollutant in conditioning water of ozone contact oxidation pond is non-degradable, the availability ratio of ozone is low, the degradation of organic pollutant is not exhaustive. It is accomplished as follows: first set porous media filling materials (1-3) made up of porous media and metal or metallic oxide inside every unit pond (1-1) in said ozone contact oxidation pond (1); then add oxidant whose bubble diameter is 20mum~5mm to said ozone contact oxidation pond, said oxidant is pure ozone or mixture gas of ozone and oxygen / air; the concentration of ozone is 0.1-5.0mg / L. The method in said invention is not only useful for dealing organic pollutant in ozone contact oxidation pool completely, but also enhancing the availability ratio of ozone.
Owner:HARBIN INST OF TECH

A temperature control method for the optical path of a photoelectric separation fiber optic gyroscope

The invention discloses a method for controlling temperature of a photoelectric separate fiber optic gyroscope optical path, which comprises steps: a magnetic shielding outer cover (2) is arranged on an optical fiber ring skeleton (4), and forms a closed magnetic shielding space with the optical fiber ring skeleton (4), the magnetic shielding outer cover (2) uses a covered edge design, and is clung to the upper edge of the optical fiber ring skeleton (4) after being mounted, and is packed on the inner wall of the optical fiber ring skeleton (4) along the peripheral direction, electrical heating bands are pasted on the optical fiber ring skeleton (4), and heat is transmitted to the optical fiber ring skeleton (4) through the magnetic shielding outer cover (2), and is transmitted to an optical fiber ring (3) through the optical fiber ring skeleton (4), thereby enabling the optical fiber ring (3) to achieve temperature balance. The method for controlling temperature of the photoelectric separate fiber optic gyroscope optical path enables the temperature in the optical fiber ring (3) to be uniformly distributed, a gyroscope works in a sett temperature range, prevents bias drift which is produced by shupe in effect, and achieves the performance demands of high precision optical fiber gyroscope zero bias and scale factors.
Owner:BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH

Rapid ratchet spanners

InactiveCN100343023CForward and reverse rotationRealize continuous operationSpannersWrenchesEngineeringWrench
A high-speed ratchet wrench is composed of a main body consisting of a head with a through hole and a turning ring fixed in said through hole. It features that a multi-step sloped spring ring is located on the inner surface of said through hole and several roller in contact with the smooth peripheral surface of said turning ring are radically arranged on said slopes one for one.
Owner:刘松土

Pin shaft easy to mount and demount

The invention relates to a pin shaft easy to mount and demount. The pin shaft comprises a pin shaft body, a disc-shaped round head is coaxially formed at one end of the pin shaft body, an annular groove is formed at the other end of the pin shaft body, a mounting head is coaxially formed at the outer end of the annular groove, each of the upper end face and the lower end face of the mounting head is a plane, and each of the left side face and the right side face which connect the upper end face with the lower end face is a cambered surface. The pin shaft is reasonable in design, convenient to use, easy to manufacture and high in practicability, and by using the pin shaft, mounting and demounting efficiency can be improved, and great convenience is brought to working personnel.
Owner:TIANJIN QIANGLI CHAIN
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