178results about How to "Fast read" patented technology

The utility model provides a rotation adjusting mechanism, a lamp and a lighting system.The rotation adjusting mechanism comprises a fixed ring, a rotating ring and a rotating piece, the fixed ring is provided with a containing position, a first connecting part, a display through groove, angle scales and a third connecting part, and the rotating ring is arranged in the containing position; the rotating ring is provided with a second connecting part rotatably connected with the first connecting part around a first rotation axis, the angle scales are distributed around the third connecting part, the display through groove is located between the third connecting part and the angle scales, and the rotating ring is provided with a guide column parallel to the first rotation axis and extending towards the display through groove. The rotating part is provided with a fourth connecting part, a sliding groove and a pointer, the fourth connecting part is rotatably connected with the third connecting part around a second rotation axis, the second rotation axis is parallel to the first rotation axis, the guide column is slidably arranged in the sliding groove, and the pointer is located at the display through groove. The lamp is provided with the rotation adjusting mechanism, the lighting system is provided with the lamp, and the rotation adjusting mechanism has the advantage that angle scales can be recognized more easily.

The utility model discloses a device for measuring a flat coil on line, and belongs to the technical field of hot rolling operation steel coil detection, the device comprises a rod body assembly, the rod body assembly comprises a sleeve and an inner rod with scales, the inner rod and the sleeve are in shaft sleeve connection, the first end of the inner rod extends out of the sleeve, and the scales are arranged at the second end or in the middle of the inner rod; the measuring assembly comprises a measuring block, a measuring rod and a connecting rod, part of the measuring rod is arranged in the measuring block, the other part of the measuring rod extends out of the measuring block, the measuring block is connected to the sleeve, and the two ends of the connecting rod are hinged to the measuring rod and the first end of the inner rod respectively; the inner rod can slide relative to the sleeve and drives the connecting rod in a sliding mode relative to the sleeve, the connecting rod drives the measuring rod to be telescopic relative to the measuring block, and external measurement is carried out through the relative position of the measuring rod and the measuring block. The flat coil value of the steel coil can be effectively measured, detection is convenient and rapid, the reference value can be rapidly read and adjusted, and real-time online detection is achieved.

The present invention relates to the technical field of eyewashers, specifically to an eyewasher equipped with a remote monitoring module for real-time water quality monitoring, comprising a bracket and an anti-slip device, an eyewash basin is provided on the surface of the bracket, an eyewash head is provided on the inner wall of the eyewash basin, a water inlet pipe is provided on one side of the bracket, a water level sensor is provided on the surface of the water inlet pipe, a control module is provided on the surface of the bracket, a human body sensor is provided on the surface of the bracket, an alarm is provided on the surface of the bracket, a spray head is provided on one side of the bracket, the output end of the human body sensor is electrically connected to the input end of the control module, and the output end of the water level sensor is electrically connected to the input end of the control module. The present invention, by providing an anti-slip device, is convenient for preventing the equipment from slipping off, can effectively prevent the phenomenon of the equipment spraying part from loosening due to long-term use, reduces the probability of the equipment falling off and being unable to continue to be used, and thus improves the overall stability of the equipment.

The invention relates to the field of photoetching machines, and discloses a back overlay precision verification and overlay error compensation method, which comprises the following steps of: manufacturing a first overlay mark on the front surface of a transparent sheet and a first scale around the first overlay mark; capturing and storing a mask plate alignment mark by adopting a back microscope, wherein the mask plate alignment mark consists of a second overlay mark and a second scale around the second overlay mark; aligning the first scale and the second scale on the front surface of the transparent sheet by using a back microscope, and exposing and developing a newly manufactured mark after alignment; and reading the first scale and the second scale on the newly manufactured mark through the optical microscope, and obtaining the alignment precision through the alignment degree of the first scale and the second scale.

The invention discloses cable manufacturing detection equipment, and relates to the technical field of cable insulation sheet tensile detection, the cable manufacturing detection equipment comprises an equipment main body, and the top of the outer side of the equipment main body is provided with a clamping and hooping mechanism used for clamping and hooping a cable insulation sheet; the hoop clamping mechanism comprises a first L-shaped hoop clamping plate, a limiting tooth groove ring, a connecting rotating plate, a limiting gear, a push rotating plate, a push-pull plate, a measuring scale, a second L-shaped hoop clamping plate and a second hoop clamping plate. The limiting tooth groove rings are welded and fixed to the outer walls of the top ends of the two sides of the equipment body, and the middles of the inner sides of the limiting tooth groove rings are rotationally connected with connecting rotating plates. The device has the beneficial effects that the cable insulation chip can be conveniently and quickly clamped and fixed, the data of the tensile length can be conveniently and quickly read in the tensile experiment process, the accuracy of tensile length measurement can be improved, the broken cable insulation chip can be conveniently and quickly discharged after detection is completed, and the next experiment can be conveniently and quickly carried out.

The utility model discloses a measuring device for a DCS (Distributed Control System) limit switch of a sliding plug door of a motor train unit, which comprises a device main scale, and a digital display frame body is sleeved in the middle of the outer wall of the device main scale. According to the measuring device for the DCS limit switch of the sliding plug door of the motor train unit, the device main ruler is installed and is of a U-shaped structure, and a friction strip is attached to the main body part of the device main ruler, so that a digital display frame connected to the middle of the device main ruler in a sleeving mode ensures that a digital display meter accurately reads data in the sliding process, and the device main ruler is not engraved with scale marks; the digital display frame body and the laser lamp post on the connecting seat on one side of the digital display frame body are used for measuring and counting according to the relative displacement in the sliding process, then a bolt penetrates through a threaded hole to fix the laser lamp post between the laser lamp fixing base and the laser lamp fixing seat, and digital display measurement reading is realized by using an infrared laser positioning technology; the position of the DCS limit switch in the sliding plug door operation and the position of the sliding plug door after the sliding plug door is completely locked are rapidly and accurately measured, and mistaken replacement and missing replacement of parts caused by measurement errors are prevented.

The invention belongs to the technical field of oil well associated gas component analysis, and discloses an oil field associated gas component wellhead online analysis system and method. The wellhead online analysis system for the oilfield associated gas components comprises a circulating suction unit, an oilfield associated gas component analysis unit, a backflow unit and a remote control unit, the circulating suction unit comprises an electric valve, a gas-liquid separation tank and a circulating pump which are connected in sequence, the oilfield associated gas component analysis unit comprises a pressure reducing valve, an electric valve and a gas component detection part which are connected in sequence, and the backflow unit comprises an accumulated liquid backflow unit and an accumulated waste gas emptying unit. The circulating suction unit, the oilfield associated gas component analysis unit and the backflow unit are arranged on a sealed sampling pipeline formed at a wellhead sampling position. According to the wellhead online analysis system for the oil field associated gas components, online detection of the oil field associated gas components is achieved, and the reliability and accuracy of online analysis are improved.

The invention relates to a circulating free DNA (cfDNA)-based early-stage prostate cancer diagnosis marker, an evaluation system and application. According to the early-stage prostate cancer diagnosis marker, 25 cfDNA characteristic markers are obtained through fluorescent quantification, nucleic acid protein analysis, cfDNA sequencing and classification model construction, evaluation and screening. The AUC of an ROC curve of an early-stage prostate cancer evaluation model of the cfDNA characteristic marker is as high as 100%, which indicates that the biomarker has a good indication effect in the aspect of diagnosis of early-stage prostate cancer and can be used as a non-invasive biomarker for detection of early-stage prostate cancer. The method is noninvasive, convenient to operate, high in accuracy and capable of effectively distinguishing cfDNA feature differences of prostatic cancer patients and healthy people and efficiently recognizing early prostatic cancer patients.

The invention relates to the technical field of distributed storage, and discloses a distributed storage system with infinitely extensible capacity and performance and a storage method thereof.The distributed storage system comprises a special storage device cluster and further comprises a mobile device node pool composed of mobile devices in a company internal local area network; the dynamic node management and self-adaptive expansion mechanism is located in the data scheduling and management module and is closely integrated with the data scheduling and management module; and a data transmission protocol and an encryption mechanism. Through the synergistic effect of the data caching module and the preloading engine, the system significantly reduces the direct access to the special storage device cluster, and optimizes the data flow path. The data scheduling and management module dynamically adjusts a cache strategy, so that common data can be quickly read from a cache, and meanwhile, a preloading engine loads possibly needed data in advance according to a historical access mode. According to the mechanism, the data access delay is reduced, and the response speed and the overall performance of the system are greatly improved especially in the scene of high-concurrency requests.

The invention provides an automatic drawing method and system based on a BIM (Building Information Modeling) of a long and large linear project in the traffic field, and the method comprises the steps: obtaining a two-dimensional view based on the BIM, and carrying out the marking and releasing of the model in the two-dimensional view, and constructing a complete view; designing a statistical table template based on actual demands, and extracting BIM model information to fill statistical table template content to generate a statistical table; a drawing template is designed based on actual demands, wherein the drawing template comprises a mapsheet, a drawing frame, a countersign column, a project information column and / or a drawing area; selecting a required drawing template, performing layout on the drawing area to construct a view template, and obtaining a required two-dimensional view and / or a statistical table based on the view template to generate a complete drawing; drawing output parameter setting is conducted on the complete drawing, output content is selected, printing configuration parameters are set, and the drawing is printed and output. According to the method, the drawing efficiency can be greatly improved, human resources are saved, manual errors are reduced, the readability of the drawing is enhanced, and a reader can quickly position effective information conveniently.

The utility model relates to the technical field of medical care, and discloses an improved drainage bag and an auxiliary separating device thereof, the improved drainage bag comprises a drainage bag and an abdominal cavity drainage tube, both a drainage catheter in the drainage bag and the abdominal cavity drainage tube are clamped with fixing blocks, a pair of pipeline separating forceps is arranged between the two fixing blocks, and the pipeline separating forceps are connected with the drainage bag and the abdominal cavity drainage tube. Clamping blocks are installed on the two sides of the interior of the fixing block in a sliding mode. According to the improved drainage bag and the auxiliary separation device thereof, fixing blocks and pipeline separation forceps are used in cooperation, a drainage catheter and an abdominal cavity drainage tube are easily separated through the lever principle, meanwhile, a guide groove is formed, in the separation process of the drainage catheter and the abdominal cavity drainage tube, one fixing block moves outwards under the action of a first connecting block, and the other fixing block moves outwards under the action of a second connecting block; when the connector is separated, the connector can rotate along the direction of the guide groove, so that the rotary separation effect is achieved, compared with a direct pulling mode, the force is easier to control, and the connector can be separated gradually without causing too large damage or pulling force.

The embodiment of the invention discloses a graphics processor, an operation method of the graphics processor and electronic equipment, and relates to the field of computers. According to the method, the DMA module is used for directly transmitting data between the SRAM and the configuration register / memory of the ISP, frequent intervention of a CPU is not needed, the configuration process of the ISP is simplified, and the configuration efficiency is improved. The SRAM maps a section of area with the same size as the ISP configuration register / memory, and quick updating and reading of ISP configuration and information are realized through direct reading and writing of the DMA. Compared with a mode of directly using a plurality of registers and memories, the mapping mode has the advantages that the occupation of hardware resources is reduced, so that the area of the whole SRAM is smaller than the total area of a mode of independently using the registers and the memories.

The invention discloses a low-loss anti-aging orbital angular momentum RFID (Radio Frequency Identification Device) array antenna which sequentially comprises N array units, a first dielectric substrate, a metal grounding plate, a second dielectric substrate and a feed network from top to bottom, the N array units are in central symmetry and are distributed on the upper surface of the first layer of dielectric substrate at equal angular intervals along the circumference, the feeding amplitudes of the array units are the same, and the phase difference between two adjacent array units in the clockwise direction meets # imgabs0 #, l is an orbital angular momentum mode required by a radiation beam, and the number of the array units meets the condition that-N / 2 < l < N / 2; each array unit is of a circular structure, one or more strip-shaped gaps are additionally formed in each array unit, and the center position of each strip-shaped gap is located at the center position of the array unit; the metal grounding plate is provided with strip-shaped gaps corresponding to the center positions of the array units, the feed network feeds through the gaps in the metal grounding plate, the feed amplitudes of the array units are the same, and vortex electromagnetic waves are generated.

The invention provides a data reader and an emergency lamp assembly, and belongs to the technical field of emergency lamps, the data reader comprises a lamp communication circuit, the lamp communication circuit is electrically connected with a control circuit, and the lamp communication circuit is used for reading lamp information and fault alarm records and outputting lamp signals to the control circuit; the first connecting terminal is electrically connected with the lamp communication circuit, and the first connecting terminal is used for being connected with a communication end of an external lamp; the control circuit is used for outputting a display signal according to the lamp signal; and the input end of the display circuit is connected with the output end of the control circuit, and the display circuit is used for displaying lamp data according to the display signal. According to the technical scheme, communication is simple, stability is high, the anti-interference capacity is high, and the lamp information can be rapidly read to judge the emergency use state and the fault alarm condition of the lamp.

The utility model discloses a spectrometer, which relates to the field of optical teaching aids and comprises a base assembly and a rotating seat assembly which can rotate relatively. A dial and an alidade are arranged between the base assembly and the rotating seat assembly; the dial and the alidade are respectively in one-to-one correspondence with the base assembly and the rotating seat assembly and are fixed; the dial is provided with a first scale bar, and the first scale bar is arranged around the rotating center between the base assembly and the rotating seat assembly; a second scale bar is arranged on the alidade; the plurality of scale marks of the second scale bar can be overlapped with the plurality of scale marks of the first scale bar to form a plurality of corresponding overlapping areas; and the overlapping areas of the plurality of overlapping regions are different. According to the spectrometer, a user can read conveniently, the situation that the attention of the user is distracted is reduced, the user is helped to read rapidly, and the reading time is saved.

The invention belongs to the field of data storage, and particularly relates to an integrated circuit big data storage optimization system which comprises a data control module, a storage unit module, a data caching module, an error detection and correction module, a data compression module, an address mapping module and a power management module. And the storage unit module is used for controlling and managing the read-write operation of the data, and is used for determining the structural design of the storage unit and monitoring the state of the storage unit. According to the integrated circuit big data storage optimization system, the storage capacity is greatly improved by adopting a novel nonvolatile memory technology and an optimized storage unit structure and material, and meanwhile, the read-write speed of data is remarkably improved by adopting an intelligent cache replacement strategy, a multi-level cache structure, a cache prefetching technology and the like, so that the storage efficiency of the integrated circuit big data is improved. In this way, in a big data storage scene, a large amount of data can be quickly stored and read, and the high requirement of the modern information technology for data processing is met.

The invention relates to a test bench of a winding temperature controller for a transformer. The test bench comprises a temperature controller mounting and fixing module, a power supply and signal output module and a detection operation table top. According to the test bench, rapid suspension and positioning of the temperature controller are realized through the multi-directional S-shaped hook and the fixing plate, reading and signal measurement processes are simplified, simultaneous detection of multiple test benches is supported, and wiring and wire changing operations are reduced. The device can also comprise a rectangular hole design, various power supply terminal configurations and the like, aims to improve the detection efficiency and safety, is suitable for regular detection of a large number of temperature controllers in an electric power system, and has wide application potential.

The utility model belongs to the technical field of push-pull force meters, and particularly relates to an auxiliary calibration device of a push-pull force meter, which comprises a mounting frame, a first sliding groove is formed in the bottom of the inner wall of the mounting frame, a first sliding rod is fixedly arranged on the inner wall of the first sliding groove, a first spring is sleeved on the outer wall of the circumference of the first sliding rod, and a sliding block is slidably connected to the inner wall of the first sliding groove. The end of the first sliding rod penetrates through the sliding block and is in sliding connection with the sliding block, and a push plate is fixedly arranged at the top of the sliding block. A weight is hung on a hook at the bottom of a push-pull dynamometer, the outer wall of the weight is in contact with the inner side wall of a push plate, the weight is kept vertically downward, the weight can be limited and blocked through the push plate, and a handle is pushed to drive the push plate to move slowly, so that the push plate drives a sliding block to slide along the outer wall of a first sliding rod. At the moment, the swing amplitude of the weight can be reduced, so that the weight is rapidly kept static, an operator can conveniently and rapidly read, and the calibration precision is improved.

A water level marker post for water conservancy and hydropower comprises a cement base, a bearing block, a rotating block, a fastening plate, an indicating frame, a hollow floating ball, a marker post sleeve and a warning disc, scale marks are arranged on the two sides of the marker post sleeve, the indicating frame is connected to the exterior of the marker post sleeve, reading openings are formed in the two sides of the indicating frame, the bearing block is connected to the interior of the marker post sleeve, the bearing block is provided with a lower groove, and the marker post sleeve is provided with a limiting batten. The two sides of the bearing block are provided with fastening threaded grooves, the two sides of the marker post sleeve are provided with sliding holes, the two sides of the indication frame are provided with connecting rod penetrating holes, the connecting rod penetrating holes, the sliding holes and the fastening threaded grooves are matched with connecting rods, the connecting rods sequentially penetrate through the connecting rod penetrating holes and the sliding holes, and the inner ends of the connecting rods are connected with the fastening threaded grooves through threads. Hollow floating balls are connected to the outer ends of the connecting rods.

The invention provides a compound eye camera module control method and device. The compound eye camera module control method comprises the steps of S1, dividing preprocessed image data into an infrared image and a low-light image; s2, the infrared image and the low-light-level image are spliced by a digital signal processor (DSP) for N times until a final high-precision image is formed, and N is larger than or equal to 1; s3, displaying and storing the finally generated high-precision image in real time; the compound eye camera module control method and device can be applied to multiple fields, such as security monitoring, intelligent transportation, industrial detection and the like. In different application scenes, the advantages of high image quality, powerful functions, convenience in storage and sharing and the like can be exerted.

The invention provides a data acquisition method and system based on a dynamic encryption technology, and the system comprises a system acquisition module, a dynamic encryption module, a data transmission module, a data receiving module, a decryption verification module, and a safety monitoring module. The data acquisition method based on the dynamic encryption technology comprises the following steps that S1, a terminal initiates a data query request; s2, acquiring service source data from the data source; s3, dynamically encrypting and transmitting the data; s4, carrying out decryption processing on the data; s5, carrying out real-time monitoring; according to the method provided by the invention, by dynamically modifying the encryption key and the data content, the security of the data in the storage and transmission process is improved, and the data is effectively prevented from being illegally acquired or cracked; the data acquisition module can quickly and accurately read the data from the data source, and the data is encrypted through the dynamic encryption module, so that the data acquisition efficiency is improved.

The invention provides a method, a system and a medium for visually perceiving a result, and a server is developed by using Python and transmits data to a client in a user-defined format through an Ethernet or a CAN (Controller Area Network) bus. And the client uses a visualization tool to receive the self-defined data and perform graph drawing and visualization. The modular design of the server and the client enables data addition and deletion to be flexible, and the server can depend on tools such as Foxglove, so that the attention of bottom layer implementation is reduced, and the application layer development is focused. In addition, through tools such as Wireshark, data can be synchronously recorded, and cross-platform use is supported. Through the separated design of the server and the client, the user-defined data format and transmission protocol, the modular design, the data addition and deletion flexibility, the data security and integrity and the like, the system aims at improving the working efficiency of developers, ensuring the accuracy and integrity of the data, supporting real-time data recording and analysis, and improving the development efficiency of the developers. And powerful support is provided for development and optimization of an automatic driving system.

The invention discloses a message conversion method and device, equipment, a storage medium and a program product, and relates to the technical field of data processing. The method comprises the following steps: acquiring a first analysis result of a first request message sent by a target client, and storing the first analysis result in a request variable data item space in an internal storage space; obtaining a target request message template and first configuration information according to identification information corresponding to the first request message; according to the first configuration information and the request variable data item space, setting the value of each first standard variable field in the target request message template as the value of a first variable field corresponding to the first standard variable field, and obtaining a request message template after the variable fields are instantiated; and setting the value of each first standard constant field in the request message template after instantiating the variable fields as the value of the first standard constant field read from the constant data item space to obtain a converted second request message. According to the method, the message conversion efficiency is improved.

The utility model relates to the technical field of dumbbells, in particular to a novel counter dumbbell capable of improving training efficiency, which comprises a dumbbell rod, connecting rods are fixed at two ends of the dumbbell rod, dumbbell pieces are mounted on the surfaces of the connecting rods, a connecting sleeve is connected to the surface of the dumbbell rod, and protective rings are arranged on two sides of the connecting sleeve. And the protective ring is sleeved on the surface of the dumbbell rod. The counting device has the advantages that accurate counting can be conveniently carried out on training, training efficiency is improved, a trainee can conveniently and rapidly observe and read numbers, and use is convenient; according to the dumbbell counter, the positioning blocks and the positioning grooves are connected in a fastening and inserting mode, the first magnetic attraction blocks and the second magnetic attraction blocks are connected in an attraction mode, and therefore the first connecting piece and the second connecting piece can be connected stably and detached conveniently, and the connecting sleeve and the counter body can be detached and installed on the surface of the dumbbell rod conveniently.

Embodiments of the present application disclose a file processing method and device, electronic equipment, storage medium and program product. The method comprises: dividing a disk space according to a specified granularity to obtain division information of the disk space; constructing a bitmap based on the division information of the disk space to manage the use state of the disk sectors obtained by division through the bitmap; when a file writing request is received, querying the bitmap to determine available disk sectors; writing a to-be-backed-up file into the available disk sectors, and generating a key-value pair data based on the file name of the to-be-backed-up file and address information of the available disk sectors, and saving the key-value pair data in a key-value database. Embodiments of the present application can achieve the effect of quickly searching and reading and writing data, thereby realizing effective storage of mass files such as pictures.

The invention provides a seismic network measurement data processing method and device, computer equipment and a storage medium. The method comprises the steps that the category and the channel number of network measurement information data are acquired; determining a page starting position according to the category of the network testing information data; determining a mapping window where the network testing information data of the channel number is located according to the channel number of the network testing information data; determining a starting memory page and a terminating memory page in the mapping window according to the page starting position and the mapping window; and determining the page position of the network testing information data according to the start memory page, the end memory page and the channel number of the network testing information data in the mapping window, and reading the network testing information data based on the page position of the network testing information data. The problem that the access space of a large amount of seismic network measurement information data is limited is solved, and the mapping memory page of the network measurement information data can be quickly positioned through the category and the channel number of the network measurement information data. Compared with file form storage, memory mapping has higher access speed and higher efficiency.

The utility model discloses a chain wheel abrasion detection tool belongs to the mining scraper conveyor chain wheel abrasion detection technical field, including longitudinal locating block, the lateral width of longitudinal locating block is with the interval adaptation between the axially adjacent gear tooth on the chain wheel piece, and longitudinal locating block is along the lateral symmetry setting and is used for measuring the lateral detection rod of wheel groove lateral interval, and is along the longitudinal symmetry setting and is used for measuring the longitudinal detection rod of wheel groove longitudinal interval, the lateral detection rod and longitudinal detection rod are respectively with the sliding fit of longitudinal locating block, longitudinal locating rod is equipped with first lug for the contact tooth groove upper edge, and the lateral detection rod is equipped with second lug for the contact tooth groove upper edge. The utility model discloses through longitudinal detection rod and lateral detection rod respectively drive first lug and second lug accurate detection to tooth groove upper edge position, help to promote the detection accuracy, and convenient quick, accurate reading wear data simultaneously.

The utility model discloses an adjustable two-dimensional code scanner, which relates to the technical field of two-dimensional code scanning devices and comprises a scanning device, an equipment scanning shading mechanism is connected to the front of the scanning device, and an equipment angle adjusting mechanism is connected to the lower portion of the scanning device. The equipment scanning shading mechanism comprises shading cloth connected to the front of the scanning device. According to the adjustable two-dimensional code scanner, the shading cloth is installed in front of the scanning device, the shading cloth is connected with the connecting ring through the adjusting side rod, the inclined rod is installed on the connecting ring at the bottom, the inclined rod is connected with the shading cloth through the adjusting side rod, and the shading cloth is contracted or opened through the arrangement of the inclined rod; the opened black-out cloth is laid on the upper side of the front of the scanning device, the front of the scanning device can be shielded, the brightness of the scanning device can be conveniently improved, the two-dimensional code on the equipment can be rapidly and accurately read, and the scanning efficiency of the scanning device is improved.

The utility model relates to the technical field of insulation connection, in particular to an insulation connection mode of an SMA patch cord and a metal casing, which comprises a metal casing body, positioning holes, a hard plastic sheet and a locking screw, the left side and the right side of the metal casing body are uniformly provided with the positioning holes, and the hard plastic sheet is provided with the locking screw. The left end of the upper side of the metal casing body is fixedly provided with a hard plastic sheet, the hard plastic sheet and the metal casing body are pressed tightly through a nut, the left end of the metal casing body is fixedly provided with a locking screw, the threaded end of the SMA conversion line penetrates through an installation hole of the hard plastic sheet, the hard plastic sheet is provided with a D-shaped hole, and the D-shaped hole is communicated with the locking screw. The metal casing body is matched with the shape of the thread part of the SMA conversion line to play a role in insulation and prevent the SMA conversion line from rotating, the positioning hole is formed in the upper side of the metal casing body to prevent the metal casing body from being in contact with an SMA head, interference of clutters outside the casing on communication signals can be isolated, interference of clutters outside the metal casing body can be isolated, electrostatic protection capability can be improved, and product performance can be improved.

The utility model discloses an air volume adjusting device of a constant-displacement air conditioner, which relates to the technical field of air volume adjustment of air conditioners, and comprises a constant-displacement air inlet air conditioner, one end of the air inlet air conditioner is communicated with an air flow meter through a pipeline, and the other end of the air inlet air conditioner is communicated with a precision filter through a pipeline, adjustable electric valves are mounted on a pipeline between the air inlet air conditioner and the air flow meter and a pipeline between the air inlet air conditioner and the precision filter, and the other ends of the adjustable electric valves between the air inlet air conditioner and the air flow meter are connected with an air pump through pipelines; according to the utility model, a part of air is pumped out from the rear part of the system through the air pump and is injected into the pipeline between the air inlet air conditioner and the air flow meter, so that the purpose of increasing the air volume is achieved under the condition that the displacement of the air inlet air conditioner is not changed, and the air flow in the brake emission measuring instrument is controlled through the opening degree of the two adjustable electric valves.