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31results about How to "Solve space occupation" patented technology

Dual-frequency microstrip antenna applied to wireless capsule?endoscope

The invention discloses a dual-frequency microstrip antenna applied to a wireless capsule?endoscope. The microstrip antenna is attached to the outer wall of the capsule of the wireless capsule?endoscope. The dual-frequency microstrip antenna applied to the wireless capsule?endoscope is characterized in that the microstrip antenna comprises a feeder terminal, an outer loop antenna part and an inner loop antenna part, wherein the feeder terminal serves as the input end of the microstrip antenna; the outer loop antenna part and the inner loop antenna part are electrically connected with the feeder terminal; the length of the outer loop antenna part is corresponding to the full wavelength of the center frequency of a first desired frequency band; the length of the inner loop antenna part is corresponding to the full wavelength of the center frequency of a second desired frequency band; the inner loop antenna part is embedded inside the outer loop antenna part; and the center frequencies of the first desired frequency band and the second desired frequency band are no more than 1 Ghz. The antenna is a wall-attaching antenna attached to the outer wall of the capsule, the working frequency is lower than 1Ghz, an ultra?bandwidth is provided, the size is small, and the antenna is suitable to work inside the small intestine of a human body.
Owner:XIAN JIAOTONG LIVERPOOL UNIV

Monolithic integration device for tera-hertz time domain spectral system and preparation method

The invention discloses a monolithic integration device for a tera-hertz time domain spectral system and a preparation method. Through a stripping transfer and bonding technique of a low-temperature GaAs film, the production and the reception of tera-hertz are integrated into the same substrate, so that the monolithic integration device has the characteristics of being small in size, light in weight, low in cost and convenient to operate. The device structurally comprises a photoconduction antenna, a metal waveguide and a base, wherein the photoconduction antenna consists of metal electrodes and a low-temperature GaAs film; the metal waveguide is a microstrip line for transmitting the tera-hertz; the base consists of BCB media, an Au metal backing plate and a silicon base. Through the adoption of the monolithic integration device and the preparation method thereof disclosed by the invention, the problem of high space occupation of a conventional tera-hertz time domain spectral system is solved, and all parts of the system are integrated to the same substrate; besides, in the measuring process, only a few number of samples are needed to obtain corresponding information; on the other hand, tera-hertz collimation adjustment before sample measurement is reduced, so that sample measuring steps are more succinct.
Owner:CAPITAL NORMAL UNIVERSITY

Binding elastic fixation rope system for distal tibiofibular syndesmosis separation

ActiveCN112957112ASolve the problem of uneven tension distributionSolve space occupationInternal osteosythesisBiologyBiomedical engineering
The invention relates to the field of medical instruments, in particular to a binding elastic fixation rope system for distal tibiofibular syndesmosis separation. The binding elastic fixation rope system comprises a rope tension measuring device and a rope fixing device. The rope tension measuring device comprises a hollow cylindrical shell, a spring adjusting nut, a spring adjusting threaded sleeve, an end cover and a spring; an annular protrusion is arranged on the inner side face of one end of the shell, and a groove-shaped guide rail is arranged on each of the two sides of the inner side face; the side face of the shell is dug to facilitate hanging of a rope. and the other end of the shell sleeves a rope fastening device, the two side faces of the shell are excavated, so that the rope fastening device can be conveniently screwed into the shell, and the shell is not broken by excavation, to prevent the shell from inclining when the shell is placed on a bone surface. According to the design of the invention, the accuracy of the tension of the binding elastic fixing rope for distal tibiofibular syndesmosis is improved, thereby solving the problem that the tension of the rope is not uniformly distributed, fixing devices at the two ends are arranged in bone cortex, thereby avoiding space occupation in soft tissue; and a more scientific basis is provided for clinical application.
Owner:山东大学齐鲁医院(青岛)

Inferior tibiofibular syndesmosis separation binding elastic fixation cable system

ActiveCN112957112BSolve the problem of uneven tension distributionSolve space occupationInternal osteosythesisTibiaMedical equipment
The invention relates to the field of medical equipment, in particular to a lower tibia-fibular syndesmosis separation and binding elastic fixing cable system, comprising a cable tension measuring device and a cable fixing device, wherein the cable tension measuring device comprises a hollow cylindrical The outer shell, spring adjustment nut, spring adjustment threaded sleeve, end cover and spring, the inner side of one end of the outer casing is provided with an annular protrusion, and both sides of the inner side are provided with groove-shaped guide rails; ; The other end of the shell is sleeved with a cable fastening device, and the two sides are dug out to facilitate screwing into the cable fastening device, and the shell is not cut out to prevent the shell from tilting when it is placed on the bone surface. The invention is designed to improve the accuracy of bundling and elastically fix the cable tension of the lower tibia-fibular syndesmosis, thereby solving the problem of uneven distribution of cable tension, and the fixation devices at both ends are placed in the cortical bone to solve the problem of occupying space in the soft tissue, which is a clinical provide a more scientific basis.
Owner:青岛山大齐鲁医院(山东大学齐鲁医院(青岛))

Device and method for precisely measuring the position and orientation of a six-degree-of-freedom parallel mechanism dynamic platform

The invention belongs to the technical field of measuring equipment, in particular relates to a device and a method for accurately measuring position and posture of a six-degree-of-freedom parallel mechanism movable platform. The device and the method for accurately measuring the position and posture of the six-degree-of-freedom parallel mechanism movable platform aim at solving the problems thatthe position and posture measuring instrument of the six-degree-of-freedom parallel mechanism movable platform in the prior art has high cost and low measuring precision and the requirement of high precision measurement of the position and posture in special occasions cannot be met. The invention provides a device and a method for accurately measuring the position and posture of the six-degree-of-freedom parallel mechanism movable platform. The device and the method for accurately measuring the position and posture of the six-degree-of-freedom parallel mechanism movable platform comprises a large-load six-degree-of-freedom parallel mechanism, a high-precision six-degree-of-freedom parallel mechanism driven by piezoelectric ceramics, a connector connected between the two and a controller. When the large-load six-degree-of-freedom parallel mechanism moves, the position and posture of the high-precision parallel mechanism are adjusted and measured according to the numerical value fed backby the connector, so that the movable platform of the high-precision parallel mechanism moves along with the movable platform of the large-load parallel mechanism, and the position and the posture ofthe large-load six-degree-of-freedom parallel mechanism are calculated. According to the device and the method for accurately measuring the position and posture of the six-degree-of-freedom parallelmechanism movable platform, the cost is low, the measuring precision is high, and the practicability is high.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Architectural design and display platform

The invention relates to an architectural design and a display platform. The platform comprises a bracket, a first flat plate and a second flat plate, the up and down of the second flat plate is juxtaposed and parallel to the up and sown of the first flat plate, and left and right end portions of the second flat plate and the left and right end portions of the first flat plate are respectively correspondingly connected and through connecting rods; the second flat plate is provided with a rotatable turntable, four transparent plates are arranged on the rotatable turntable, the transparent plates are of isosceles trapezoidal structures, the four transparent plates are uniformly distributed on the circumference of the turntable, so that the upper bottom surfaces of the four transparent platesare oppositely arranged two by two, and the ends where the upper bottom surfaces are located of the transparent plates are hinged to the turntable through axes parallel to the upper bottom surfaces of the transparent plates; through holes which penetrates through the transparent plates along the length of the lower bottom sides are formed in the ends where the lower bottom surfaces are located ofthe transparent plates, and elastic ropes sequentially penetrate through the through holes of the four transparent plates and form a closed annular structure; the turntable is provided with a plurality of display screens corresponding to the transparent plates, and the display screens are placed under the transparent plates.
Owner:ZHENGZHOU UNIVERSITY OF AERONAUTICS

Sound insulation door, door control driving mechanism, control method and railway vehicle

PendingCN114684211AImprove sound insulationPlay the role of sound insulation and shock absorptionPower-operated mechanismDoor arrangementStructural engineeringMechanical engineering
The invention firstly provides a sound insulation door which comprises a door body, a door body frame, a door control driving mechanism and a bottom sliding mechanism, the door body frame is provided with a cavity, and a sound insulation material is attached to the cavity and / or a vibration reduction material is filled in the cavity; the door body is assembled and fixed with the door body frame and comprises panels on the two sides, a vibration reduction material and a sound insulation material, and the vibration reduction material and the sound insulation material are pressed between the two panels; the door control driving mechanism is assembled with an assembly formed by assembling the door body and the door body frame and drives the sound insulation door to be opened and closed; the bottom sliding mechanism is assembled and fixed with the door body frame and / or the lower portion of the door body and comprises a lower sliding groove with an opening in the bottom, the top of a lower sliding guide rail laid on the ground is inserted into the lower sliding groove so that the sound insulation door can move in parallel along the lower sliding guide rail, and a noise reduction assembly is arranged in an inner cavity of the lower sliding groove. The invention further provides a door control driving mechanism and a corresponding control method, and further provides a railway vehicle provided with the sound insulation door.
Owner:CRRC QINGDAO SIFANG CO LTD

Crane power transmission device

PendingCN107826980ASmall pressure lossSolve the problem of chassis space occupationLoad-engaging elementsTransfer casePower transmission
The invention provides a crane power transmission device. The crane power transmission device comprises a first transmission shaft, a second transmission shaft, a third transmission shaft, a first angle driver and a second angle driver; one end of the first transmission shaft is connected with an output shaft of a crane chassis transfer case; the other end of the first transmission shaft is connected with an input shaft of the first angle driver; an output shaft of the first angle driver is connected with one end of the second transmission shaft; the other end of the second transmission shaftis connected with an input shaft of the second angle driver; an output shaft of the second angle driver is connected with one end of the third transmission shaft; and the other end of the third transmission shaft is connected with an oil pump of a hydraulic system of an upper car of a crane. The crane power transmission device is used for directly outputting power of a chassis of the crane to theupper car of the crane through a mechanical transfer mode; and the hydraulic system of the upper car is used for driving operation of a lifting mechanism, a revolving mechanism and an amplitude changemechanism of the upper car of the crane, so that the power transfer problem from the bottom to the upper car in a traditional high-tonnage crane is solved.
Owner:ANHUI LIUGONG CRANE

Double-sided adjustable type drawing board for infant early intelligence development

The invention discloses a double-sided adjustable type drawing board for infant early intelligence development. The double-sided adjustable type drawing board comprises an adjustable type drawing board body, wherein the adjustable type drawing board body comprises a bracket and a double-sided drawing board; the bracket comprises a support rod, a slide rod and a fixed frame, and the support rod iscrossed with the top of the slide rod; the crossed part of the support rod and the slide rod is equipped with a connecting hole; a fixed part is connected at the outer side of the crossed part of thesupport rod and the slide rod in a sleeving mode, and is connected to the crossed part through a bolt; the double-sided drawing board comprises a primary board and a secondary board, wherein the primary board is connected to the top of the secondary board through an angle regulator, a slide slot is formed in the back board surface of the primary board, a blocking slot is formed inside the slide slot, the slide slot is matched with a telescopic slide rod, the other end of the telescopic slide rod is connected on the back board surface of the secondary board, and the angle regulator and the telescopic slide rod are arranged on the double-sided drawing board. Compared with a conventional double-sided drawing board, the height and the angle of the drawing board are simultaneously adjusted, andthe angle regulator is matched with the telescopic slide rod to separately regulate two drawing boards.
Owner:XIAN MEIYU INFORMATION TECH
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