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30results about How to "Flexible length change" patented technology

Telescopic connector for logging-while-drilling instrument

The invention discloses a telescopic connector for a logging-while-drilling instrument. The telescopic connector comprises a housing, an internal cylinder sleeved into the housing, a middle joint short section, a pressure balance short section, an upper oil-injection short section, a lower oil-injection short section, a telescopic short section and a rotary connector. The middle joint short section, the pressure balance short section, the upper oil-injection short section, the lower oil-injection short section, the telescopic short section and the rotary connector are sequentially connected from the top to the bottom. The telescopic connector for the logging-while-drilling instrument has following beneficial effects: the telescopic short section can be rigidly telescopic via a sliding rod so that stability is enhanced; length of the pressure balance short section and an oil-injection system can be changed by adjustments via compression springs and a floating piston and mud pressure is balanced; integral pressure-bearing capability and reliability of parts of the connector are significantly improved; a spring retractable cable runs through the interior of an enclosed cavity filled up with hydraulic oil in order to prevent from being contact with mud so that reliability of cable communication is ensured; the lower end of the sliding rod is provided with the rotary connector; when the rotary connector is connected with the LWD instrument, a sliding ring does not relatively rotate and the cable does not get twisted; due to the fact that spline fit is achieved between an anti-rotating plunger head at the upper end of the sliding rod and the internal cylinder, the sliding rod is prevented from rotating relative to the internal cylinder when being scoured by mud so that the cable does not get twisted.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Splicing trussed type pile leg device

The invention discloses a splicing trussed type pile leg device which comprises trussed type pile legs connected with pile shoes. Each trussed type pile leg comprises three chord members, wherein the vertical section of each chord member is distributed in an equilateral triangle shape. The outer circumferential face of each chord member is symmetrically connected with eleven racks in the axial direction, and the three vertical faces, in the length direction, of the chord members are respectively provided with at least two horizontal supporting rods which are isolated in an up-and-down mode and connected with the chord members. The splicing trussed type pile leg device comprises at least two layers, connecting positioning joints used for the chord members are arranged between the trussed type pile legs, and each connecting positioning joint is composed of a positioning column, a clamping sleeve, an elastic cushion block and a bolt pair. According to the splicing trussed type pile leg device, through reasonable subsection, ingenious design and the scientific splicing structure, an integrated self-elevating trussed type pile leg is changed to be in a splicing structure form with multiple layers, and the splicing trussed type pile leg device is simple in structure, convenient to assemble and disassemble, safe, reliable and wide in application range.
Owner:JIANGSU UNIV OF SCI & TECH

Multifunctional examination bed

The invention discloses a multifunctional examination bed, which belongs to the field of medical equipment. The multifunctional examination bed comprises a bedstead and a bed board fixed on the bedstead, guardrails are fixed on the head, tail and one side of the bed board, a square rotary shaft is arranged on the other side of the bed board, a detachable guardrail is arranged on the square rotaryshaft, the detachable guardrail comprises a plurality of telescopic tubes which are arranged at intervals from top to down, two vertical tubes are respectively fixedly connected both ends of the telescopic tubes, the ends, which are far from the telescopic tubes, of the two vertical tubes are provided with clamping devices, and the detachable guardrails are clamped by the clamping devices. According to the invention, since the guardrails are arranged around the bed board and the detachable guardrail is arranged on one side, the safety of an infant is ensured; moreover, because an air bag is arranged, a patient can lie on the bed head to perform treatment or examination; because a television screen is arranged, the patient can kill boring time, and in particular, the attention of an infantpatient can be attracted, so that the infant patient cannot easily make a noise.
Owner:LIUZHOU CITY HEALTHCARE HOSPITAL FOR WOMEN & CHILDREN

Steel-concrete composite structure damage measurement system

ActiveCN111189404AStrain Accurate MeasurementChange reflectionMaterial analysis using acoustic emission techniquesUsing optical meansFiberAcoustic emission
The invention discloses a steel-concrete composite structure damage measurement system. The system comprises: a fiber bragg grating measurement group, a fiber bragg grating temperature compensation group, a fiber bragg grating demodulator, a display, an acoustic emission measurement device and an extensometer. The fiber bragg grating measurement group and the fiber bragg grating temperature compensation group are arranged on the surface of a steel beam at the interface of a longitudinal steel-concrete composite bridge, the surface of a steel beam at the interface of a transverse steel-concretecomposite bridge and the surface of an embedded steel bar in a steel-concrete composite structure; wherein the fiber bragg grating measurement group and the fiber bragg grating temperature compensation group are connected to the fiber bragg grating demodulator, the fiber bragg grating demodulator is connected to the display, and the acoustic emission measurement device comprises an acoustic emission sensor, a data line, a sensor fixation device and an acoustic emission acquisition instrument; the acoustic emission sensor is installed on the surface of a concrete slab and is connected to the acoustic emission acquisition instrument through a data line, and the acoustic emission acquisition instrument is connected to the display. The extensometer is pre-buried in concrete and used for measuring the displacement difference between the steel beams and concrete.
Owner:BEIJING JIAOTONG UNIV +2

Construction method for long-distance underground passage side wall assembly type formwork

The invention relates to a construction method for a long-distance underground passage side way assembly type formwork and belongs to the technical field of construction of civil engineering. The construction method for the long-distance underground passage side way assembly type formwork is used for solving the problems that during traditional formwork construction, formwork assembling precision is poor, the quality of a concrete structure is influenced, the construction mechanical degree is low, field labor intensity is large, formwork materials cannot be used cyclically and repeatedly, and resource waste is large. The construction method includes the steps that firstly, modular design is conducted according to the overall plane curve condition of a passage, and the size of assembly type formwork units is determined; secondly, a plurality of side wall construction zones are divided; thirdly, flux lines are drawn, measured and paid off in the construction zones; fourthly, side wall steel bar binding and concealment acceptance are conducted on the construction zones; fifthly, the assembly type formwork units are assembled, checked and subjected to quality acceptance; sixthly, side wall concrete pouring and curing of the construction zones is conducted; seventhly, the assembly type formwork units are demounted; and finally, the assembly type formwork is moved to the next construction zone, and the operation is cycled and repeated till construction of a whole long-distance underground passage side wall is completed.
Owner:SHANGHAI CONSTRUCTION GROUP +1

Detection kit based on heat shock protein 90 alpha and use method thereof

The invention discloses a detection kit based on heat shock protein 90alpha, which comprises a kit body, a kit body sub-package located in the kit body and a reagent body stored in the kit body sub-package, and openings are formed in the front side and the rear side of the center line of the bottom of the kit body. An opening is formed in the kit body, folding ends located on the two sides of the opening are arranged on the inner side of the kit body, the folding ends extend towards the inner side of the kit body, the number of the kit body subpackages is two, the two kit body subpackages are located on the two sides of the folding ends, and the folding ends and the kit body are integrally manufactured in a folding and pressing mode. The stretchable folding end is arranged at the center line of the kit body, so that the length of the kit body can be flexibly changed according to requirements, the storage requirement of split charging of different numbers of kit bodies is met, and the problem that an existing kit does not have the effect of flexibly changing the length of the kit body according to a detection mode is solved; and the split charging and storage requirements of the two reagents cannot be met.
Owner:安徽峰达生物科技有限公司

Message processing method based on distributed network

ActiveCN110933619AStrong transmission efficiency and environmental adaptabilityFast distribution and processingNetwork topologiesMessaging/mailboxes/announcementsEngineeringReal-time computing
The invention discloses a message processing method based on a distributed network. The method comprises the following steps: 1, formulating a message format; 2, formulating a generation rule of eachformat in the message; 3, generating a message according to the generation rule and the variable message domain rule in the step 2, and sending the message according to a code agreement and a sendingrule; and 4, receiving the message generated in the step 3 according to code agreement and a receiving rule, and performing message indexing and subsequent processing according to message semantics toobtain information carried in the message. The method aims at solving the problems of various message types, different security levels, high time sensitivity and the like in a wireless private network formed by distributed nodes such as an unmanned aerial vehicle group and the like. By designing a variable message format conforming to private network services, defining transceiving rules of different messages in a network, designing a forming method of each functional domain, and quickly addressing and distributing the messages according to semantics and the rules, the processing efficiency of the messages in the network is improved.
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH

Elastic clamping device

An elastic clamping device for fixing a substrate in coating, which consists of a substrate clamp, a plurality of elastic fixing blocks, a cover plate and bolts, through which the elastic fixing block fixes the substrate placed in the substrate clamp, and through Bolts secure the cover to the substrate holder. There will be a certain dimensional error in the process of substrate processing. During the coating process, the dimensional error of the substrate is too small, and vibration or temperature drop will cause loosening, which will reduce the performance of the coated film. At the same time, due to the large dimensional error of the substrate, Vibration and temperature rise lead to excessive stress when the substrate is fixed, and even phenomena such as carding and chipping occur, which also affect the performance of the film. The invention makes the substrate fixed in the fixture, which can eliminate the stress of the substrate caused by size error, vibration and temperature rise during film coating. The device has the characteristics of simple structure, low cost, long service life, strong versatility and convenient use.
Owner:SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI

Paint spraying robot for mechanical parts

The invention relates to the technical field of mechanical part paint spraying, in particular to a paint spraying robot for mechanical parts. The paint spraying robot for the mechanical parts comprises a base, wherein the top face of the base is fixedly connected with a top plate; the top face of one end of the top plate is fixedly connected with a side plate; the top face of the top plate and the inner side of the side plate are each provided with two symmetrically-distributed arc-shaped sliding grooves; an oil paint supply module is arranged between every two adjacent arc-shaped sliding grooves; the bottom face of the top plate and the outer side of the side plate are fixedly connected with arc moving mechanisms; and each arc moving mechanism comprises a fixed block and a guide block. According to the paint spraying robot for the mechanical parts provided by the invention, motors I drive threaded rods to rotate and drive moving blocks connected with the threaded rods in a screwed mode to move, so that a supporting pipe I and a supporting pipe II longitudinally move along the arc-shaped sliding grooves, a supporting pipe III and a supporting pipe IV transversely move along the arc-shaped sliding grooves, a paint spraying pipe I, a paint spraying pipe II, a paint spraying pipe III and a paint spraying pipe IV can conveniently conduct multi-angle uniform paint spraying on the parts, and the working efficiency of paint spraying is improved.
Owner:ZIBO VOCATIONAL INST

A telescoping connector for a drill-while-drilling instrument

The invention discloses a telescopic connector for a logging-while-drilling instrument. The telescopic connector comprises a housing, an internal cylinder sleeved into the housing, a middle joint short section, a pressure balance short section, an upper oil-injection short section, a lower oil-injection short section, a telescopic short section and a rotary connector. The middle joint short section, the pressure balance short section, the upper oil-injection short section, the lower oil-injection short section, the telescopic short section and the rotary connector are sequentially connected from the top to the bottom. The telescopic connector for the logging-while-drilling instrument has following beneficial effects: the telescopic short section can be rigidly telescopic via a sliding rod so that stability is enhanced; length of the pressure balance short section and an oil-injection system can be changed by adjustments via compression springs and a floating piston and mud pressure is balanced; integral pressure-bearing capability and reliability of parts of the connector are significantly improved; a spring retractable cable runs through the interior of an enclosed cavity filled up with hydraulic oil in order to prevent from being contact with mud so that reliability of cable communication is ensured; the lower end of the sliding rod is provided with the rotary connector; when the rotary connector is connected with the LWD instrument, a sliding ring does not relatively rotate and the cable does not get twisted; due to the fact that spline fit is achieved between an anti-rotating plunger head at the upper end of the sliding rod and the internal cylinder, the sliding rod is prevented from rotating relative to the internal cylinder when being scoured by mud so that the cable does not get twisted.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Text processing method, device and equipment

The embodiment of the invention provides a text processing method, device and equipment, and the method comprises the steps: obtaining a first text and a target number, wherein the number of characters included in the first text is greater than the target number; and deleting at least one first word in the first text to obtain a second text, the number of characters included in the second text being less than or equal to the target number, and the smoothness of the second text being greater than a preset threshold. Through the process, the length of the text can be flexibly changed, the universality of text application is improved, and meanwhile the quality of the converted text is guaranteed.
Owner:BEIJING BYTEDANCE NETWORK TECH CO LTD

Portable baton

The invention relates to the technical field of batons, in particular to a portable baton. The portable baton comprises an outer pipe, a middle pipe and an inner pipe, wherein the middle pipe is movably connected into the outer pipe in an inserting mode, the inner pipe is movably connected into the middle pipe in an inserting mode, clamping devices are arranged in the middle pipe and the inner pipe, and a threaded section formed in the side wall of the outer pipe is in threaded connection with an inner threaded sleeve; and through the clamping devices, the relative positions of the outer pipe,the middle pipe and the inner pipe are fixed, external force is applied to the middle pipe and the inner pipe, then the middle pipe and the inner pipe are pushed into the outer pipe, the outer pipe,a first screw rod and a second screw rod abut against one another, and the inner threaded sleeve is connected with the threaded section, the first screw rod and the second screw rod at the same time,so that the relative positions of the outer pipe, the middle pipe and the inner pipe are fixed. According to the baton designed by the technical scheme, the length can be flexibly changed, the baton is convenient to carry, the relative positions of the outer pipe, the middle pipe and the inner pipe are fixed through the inner threaded sleeve, the threaded section, the first screw rod and the second screw rod, the structure is simple, operation is convenient, and the fixing effect is good.
Owner:安徽蓝剑警用装备制造有限公司

Electric wire and cable manufacturing equipment

The invention discloses electric wire and cable manufacturing equipment. In order to realize the above objective, the invention provides electric wire and cable manufacturing equipment. The equipmentcomprises a bottom plate, a wire core, a self-adaptive control box, a wire cable, a limiting plate and an action box. Supporting sheets are arranged on the upper side surface of the bottom plate. Thetop of the supporting sheet is fixedly connected with the bottom end of the first support through welding. The top of the first support and the top of the second support are connected and fixed through a first bolt. Bearings are fixed to the bottoms of the front end and the rear end of the second support through a third series of bolt sets, a first rotating shaft, a second rotating shaft and a third rotating shaft are arranged between the front disc and the rear disc, and the first coil, the second coil and the third coil are each formed by winding a thin wire core, a middle wire core and a thick wire core. According to the technical scheme, the technical problems that in the prior art, the multi-line type wire and cable machining capacity is not achieved, and the length of a detected linecannot be adjusted are effectively solved, and application and popularization of the device are facilitated.
Owner:广东国博电缆电气集团有限公司

Manufacture method of X-ray optical spatial filter, direction adjustment method of X-ray optical spatial filter and device

The invention provides a manufacture method of an X-ray optical spatial filter, a direction adjustment method of the X-ray optical spatial filter and a device. With the methods and device adopted, at least one defect selected from a defect of incapability of flexibly changing the directions of light guide tubes, incapability of flexibly changing the lengths of the light guide tubes and incapability of flexibly adjusting the numbers of the lines and columns of a light guide tube array of an existing X-ray optical spatial filter can be eliminated. The manufacture method of the X-ray optical spatial filter provided by the invention includes a filtering sheet superposition method or a filtering tube arrangement method. According to the X-ray optical spatial filtering device provided by the invention, the directions and lengths of light guide tubes can be flexibly changed, or the numbers of the lines and columns of a light guide tube array can be flexibly adjusted.
Owner:钱浙滨

Adjustable processing arm of manual grommet machine for clothes processing

The invention relates to the technical field of grommet machines, and discloses an adjustable processing arm of a manual grommet machine for clothes processing. The adjustable processing arm comprisesa handheld rod, wherein anti-slide sleeve is fixedly arranged at the left end of the outer side of the handheld rod. According to the adjustable processing arm of the manual grommet machine for clothes processing, a rotary loop bar is provided, and a threaded hole matched with a threaded rod is formed in the rotary loop bar. When the length of the processing arm needs to be adjusted, the rotary loop bar is rotated, and the threaded rod is driven to rotate under the thread thrust force generated during rotation of the rotary loop bar. The left side of the threaded rod is provided with a pushing plate and a slide bar, the rotation of the threaded rod is limited, and the threaded rod can only move leftwards and rightwards, so that the length of the processing arm can be changed flexibly. A telescopic rod and a compression spring facilitate the movement of the threaded rod at a certain degree, so that the overall structure is more stable; the effect of adjusting the length of the processing arm is achieved; and greater convenience is brought to use.
Owner:石台县中奥制衣有限公司

Large-span concrete slope masonry machine

The invention relates to a large-span concrete slope masonry machine, comprising a main truss, a main material-receiving hopper, a main belt machine, an upper discharging vehicle and a lower discharging vehicle arranged on the main truss, material-conveying systems arranged on the upper discharging vehicle and the lower discharging vehicle and a forming system arranged on the lower discharging vehicle; the upper discharging vehicle is arranged on a track at the upper end of the main truss by an upper traveling wheel; the lower discharging vehicle is arranged on a track of the lower end of themain truss by a lower discharging wheel; a connecting shifting fork is arranged between the upper discharging vehicle and the lower discharging vehicle; a traveling motor is arranged on the lower discharging vehicle which is provided with a traveling transmission gear meshed with a rack track on the main truss; the lower traveling wheel is embedded into the track of the lower end so as to lead the traveling transmission gear of the lower discharging vehicle of a paver to operate thereon stably and reliably; and the large-span concrete slope masonry machine can accurately control the positionsof the upper discharging vehicle and the lower discharging vehicle in the processes of conveying materials, distributing materials and forming, thus leading the positions of conveying materials and distributing materials to be controlled precisely and guaranteeing the quality of the whole slope masonry.
Owner:河北省水利工程局集团有限公司

Special transportation device for wind power blades

The invention discloses a special transportation device for wind power blades, which belongs to the technical field of transportation equipment. The special transportation device comprises a power device and a first frame. The power device is connected with the first frame. A flange adjusting device is arranged on the first frame. The flange adjusting device comprises a fixing frame, a flange, a rotating body and a rotating shaft, and the rotating body is connected with the flange. Symmetrical hydraulic rods are further arranged on the two sides of the rotating body, a motor support is further arranged on the fixing frame, a driving motor is installed on the motor support, an output shaft of the driving motor is connected with a wire wheel, the first frame and a second frame are connected through a fixing device, symmetrical sliding grooves are further formed in the second frame, symmetrical sliding blocks are arranged on the lower portion of the fixing support, the sliding blocks are clamped in the sliding grooves, the lower part of the fixing support is further provided with a polygonal fixing groove, and a U-shaped block is installed in the fixing support.According to the invention, the technical problems that existing transportation equipment cannot be flexibly used and transportation cost needs to be additionally increased when the transportation equipment goes uphill are solved, and the special transportation device is mainly applied to wind power blade transportation.
Owner:江苏寅昊智能装备有限公司

Adjustable wall formwork device and construction method

The invention relates to an adjustable wall formwork device and a construction method, and belongs to the technical field of building construction. The adjustable wall formwork device and the construction method are used for solving the problem that a traditional formwork is large in limitation. According to the adjustable wall formwork device, a steel frame structure formed by right-angle steel plate strips, vertical edges, transverse edges and steel inclined struts is arranged on the periphery of a wall rectangular outline spliced by bamboo plywood; the right-angle steel plate strips with deformed steel bars are attached to the four right-angle edges of the bamboo plywood; the vertical edges and the transverse edges are arranged in a staggered mode at intervals; the transverse edges andthe vertical edges are fixed through groove strips arranged on the transverse edges and are locked through steel plates with holes and nuts; and the steel inclined struts are in a three-section combined type, the three sections are connected in a hinged mode, the whole structure is convenient to assemble and firm in connection, and the influence of manual installation errors is small. Compared with the traditional formwork, the adjustable wall formwork device is higher in stability and can be repeatedly used in a turnover mode, multiple sets of formworks are replaced, the manufacturing numberof the formworks is decreased, the mass is small, the precision is high, and the flatness and the line shape of the pouring quality of a concrete structure are guaranteed.
Owner:SHANGHAI CONSTR NO 5 GRP CO LTD

Window patching machine

The invention discloses a window pasting machine, which comprises a frame and a conveying device for conveying plastic films, and also includes more than two punching devices arranged on the frame, and the punching devices are used for Holes are punched on the plastic film, and each punching device can be aligned front and back along the conveying direction of the plastic film. In the present invention, each punching device can punch mounting holes independently to improve production efficiency, and the through holes punched by each punching device can also be partially overlapped, so that mounting holes with different shapes from the punch can be obtained. This makes the shapes of the mounting holes that can be processed by this window sticking machine more abundant and diverse, especially for long-shaped mounting holes. By changing the punching interval of each punching device, it can be changed without changing the punch. The distance between each through hole can flexibly change the length of the installation hole, which effectively increases the scope of application of the window sticking machine, reduces the cost of replacing and purchasing punches, and also reduces the impact on production efficiency, making it easy to use.
Owner:ZHONGSHAN ZHENGMAO MACHINERY EQUIP CO LTD

A Message Processing Method Based on Distributed Network

A message processing method based on a distributed network, comprising the steps as follows: Step 1, formulate the format of the message; Step 2, formulate the generation rules of each format in the message; Step 3, according to the generation rules and variable messages in the step 2 Domain rules generate messages and send them according to coding conventions and sending rules; step 4, receive the messages generated in step 3 according to coding conventions and receiving rules, and perform message indexing and subsequent processing according to message semantics to obtain the information carried in the messages. The method of the present invention aims at the problems of a wide variety of messages, different security levels, and strong time sensitivity in the wireless private network formed by distributed nodes such as UAV groups. According to the sending and receiving rules, the composition method of each functional domain is designed, and the messages are quickly addressed and distributed according to the semantics and rules, so as to improve the processing efficiency of messages in the network.
Owner:CHINA ACAD OF LAUNCH VEHICLE TECH

Telescopic comb

The invention provides the telescopic comb. The telescopic comb comprises an upper cover part, a lower comb part and a telescopic assembly; the telescopic assembly at least comprises a sliding seat; the sliding seat is fixedly connected to the lower side of the upper cover part; a plurality of swing rods extend to the two sides of the upper portion of the sliding seat in the length direction of the sliding seat, and clamping bosses are arranged at the ends of the swing rods; limiting sliding rods are arranged on the two sides of the lower portion of the sliding seat in the width direction of the sliding seat respectively, wherein the length direction of the limiting sliding rods is consistent with that of the sliding seat; the projection figures of the swing rods in the horizontal plane isbetween the two horizontal projection figures of the two limiting sliding rods; a sliding chute matched with the sliding seat of the telescopic assembly is formed in the upper end face of the lower comb part, wherein the trend of the sliding chute is consistent with the length direction of the sliding seat; a plurality of clamping notches matched with the clamping bosses of the swing rods are formed in the side wall of the upper part of the sliding chute; limiting notches matched with the two limiting sliding rods are formed in the side wall of the lower part of the sliding chute; and bristles are arranged on the lower end surface area of the lower comb part. The telescopic comb has the advantages that the structure is simple, the use is convenient, and the length of the telescopic comb can be flexibly changed.
Owner:安徽悟德电子机械科技有限公司

A kind of wire and cable manufacturing equipment

The invention discloses a wire and cable manufacturing equipment, including: In order to achieve the above purpose, the invention provides a wire and cable manufacturing equipment, including a bottom plate, a wire core, an adaptive control box, a wire and cable, a limiting plate, and an action box. The upper surface of the bottom plate is provided with a supporting sheet, the top of the supporting sheet is fixedly connected with the bottom end of the first bracket by welding, the top of the first bracket is connected and fixed with the top of the second bracket by first bolts, and the second bracket The bottom of the front and rear ends of the front and rear ends are fixed with bearings through the third series of bolt groups. The first rotary shaft, the second rotary shaft, and the third rotary shaft are arranged between the front plate and the rear plate. The first coil, the second coil, and the third coil are respectively It is wound by thin wire core, medium wire core and thick wire core. The technical scheme disclosed by the invention effectively solves the technical problems in the prior art that the multi-wire wire and cable processing capability cannot be adjusted and the length of the detected line cannot be adjusted, which is beneficial to popularization and application of the device.
Owner:广东国博电缆电气集团有限公司

A construction method of assembled formwork for side walls of long-distance underground passages

The invention relates to a construction method for a long-distance underground passage side way assembly type formwork and belongs to the technical field of construction of civil engineering. The construction method for the long-distance underground passage side way assembly type formwork is used for solving the problems that during traditional formwork construction, formwork assembling precision is poor, the quality of a concrete structure is influenced, the construction mechanical degree is low, field labor intensity is large, formwork materials cannot be used cyclically and repeatedly, and resource waste is large. The construction method includes the steps that firstly, modular design is conducted according to the overall plane curve condition of a passage, and the size of assembly type formwork units is determined; secondly, a plurality of side wall construction zones are divided; thirdly, flux lines are drawn, measured and paid off in the construction zones; fourthly, side wall steel bar binding and concealment acceptance are conducted on the construction zones; fifthly, the assembly type formwork units are assembled, checked and subjected to quality acceptance; sixthly, side wall concrete pouring and curing of the construction zones is conducted; seventhly, the assembly type formwork units are demounted; and finally, the assembly type formwork is moved to the next construction zone, and the operation is cycled and repeated till construction of a whole long-distance underground passage side wall is completed.
Owner:SHANGHAI CONSTRUCTION GROUP +1

Adjustable device suitable for energy dissipation and shock absorption of string truss structure

The invention discloses an adjustable device suitable for energy dissipation and shock absorption of a string truss structure. The adjustable device comprises a plurality of adjusting devices used forconnecting a string truss with the ground surface; each adjusting device comprises an elastic rod body and a lifting component; the bottoms of the elastic rod bodies are connected with the tops of the lifting components; and a contact type displacement sensor is arranged on each elastic rod body. According to the adjustable device suitable for energy dissipation and shock absorption of the stringtruss structure, two end values of effective acting force of the elastic rod bodies on the string truss are set through the contact type displacement sensors, and the position and the length of the whole device are flexibly changed in cooperation with the lifting components, so the acting force of the elastic rod bodies on the string truss is within the interval between the two end values; and therefore, the bidirectional stress performance of the elastic rod bodies can be fully utilized, the overall pressure bearing and wind load resisting capacity of the string truss are enhanced, and the utilization rate of the string truss in a strong wind area is increased.
Owner:WUHAN UNIV OF SCI & TECH

Watertight pressure-resistant cabin for optical fiber probe of field spectrograph

The invention relates to a watertight pressure-resistant cabin for an optical fiber probe of a field spectrograph, which comprises a probe shell, an optical fiber and an optical seal pipe. One end of the probe shell is a transparent end, the other end of the probe shell is provided with an extension pipe; a contact pin end of the optical fiber stretches into the probe shell, and a tail end of theoptical fiber stretches out of the probe shell through the extension pipe; an optical fiber fixing device is also arranged in the probe shell and used for fixing the contact pin end of the optical fiber; and the extension pipe comprises two sub-extension pipes which are connected with each other. The watertight pressure-resistant cabin of the invention can be arranged on the optical fiber probe of the field spectrograph, so that the field spectrograph which only can be used on land can also be suitable for underwater operation, and the watertight pressure-resistant cabin has the advantages ofhigh measuring accuracy and adjustable measuring depth.
Owner:SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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