450 results about "Gas meter" patented technology

The invention discloses an Internet of Things intelligent gas meter leakage detection and early warning system and method, and relates to the technical field of gas leakage detection, and the method comprises the following steps: S1, collecting data through multiple sensors; s2, identifying an equipment operation state based on the data set and outputting a state confidence coefficient; s3, a stable monitoring window period is judged, a corresponding strategy is selected to compensate pressure data, and reliability is marked; s4, dynamically generating a detection threshold in combination with the historical mode, the real-time parameters and the data reliability; s5, dynamically adjusting a risk assessment weight according to the confidence coefficient and the reliability, calculating a risk score and determining an early warning level; s6, safety operation is executed according to grades; and S7, updating the model by using process data to realize self-optimization. According to the invention, by deploying a multi-sensor array and adopting a multi-modal signal fusion algorithm, the system can accurately identify the running state of the gas appliance, provides reliable preposition information for subsequent analysis, and overcomes the defect that data of a traditional single sensor is easily interfered.

The invention discloses a gas meter power supply abnormity monitoring system and method based on a signal acquisition technology, and relates to the technical field of gas meter power supplies, the system comprises a multi-dimensional sensing module, a dynamic adaptive module, a multi-dimensional fusion analysis module, an intelligent judgment module and a verification execution module; according to the invention, the multi-dimensional fusion analysis module accurately calculates key parameters such as a power supply ripple coefficient and load transient response time in a corresponding mode, the electromagnetic interference intensity is calculated through professional algorithms such as discrete Fourier transform in combination with an environment electric field and a magnetic field sequence, a threshold value is dynamically adjusted based on a working mode, and a comprehensive score is calculated through multi-parameter deviation weighted fusion. The power supply state is deeply and comprehensively evaluated; the intelligent judgment module scientifically divides anomaly levels according to comprehensive scores, quantifies and distinguishes real anomaly and environmental interference by means of an environmental interference contribution degree formula, solves the problem that traditional monitoring cannot accurately recognize power anomaly under complex working conditions, and improves anomaly judgment accuracy.

The invention relates to the technical field of data transmission, and discloses a gas meter information secure transmission method based on response function compensation, which comprises the following steps: collecting multi-source data and network signal quality information of a gas meter; according to a real-time network environment and physical conditions, data transmission parameters are dynamically adjusted through a response function compensation algorithm, when data transmission in a static time slot fails, a dynamic retransmission time slot is automatically allocated for retransmission, a retransmission frequency threshold value is set, and packet loss caused by channel errors or collision is compensated through a retransmission response function; a multi-layer encryption mechanism is adopted to encrypt transmission data, an optimal transmission channel is intelligently selected according to network conditions, adaptive hybrid communication is performed through star flash short-distance communication or Wi-Fi wide-area transmission, and a response compensation mechanism of multi-dimensional environmental parameters is established based on a signal transmission model; transmitting the encrypted data to a monitoring management platform through a secure channel; therefore, safety early warning decision is realized, and dynamic accurate transmission and active safety protection are realized.

The application relates to the technical field of data processing, in particular to a kiln data monitoring and early warning method based on reinforcement learning, which comprises the following steps: acquiring intelligent gas meter readings at each collection time in each cycle during the operation of a rotary kiln and temperatures at each collection time at each monitoring point; calculating heat space diffusivity at each monitoring point at each collection time in each cycle, calculating heat time dissipation and heat propagation index at each monitoring point at each collection time in each cycle; constructing heat abnormality degree at each monitoring point; calculating energy consumption abnormality degree of the rotary kiln; calculating heat preservation degree at each collection time in each cycle; constructing comprehensive abnormality degree of the rotary kiln; constructing a prediction autoregressive term number according to the comprehensive abnormality degree of the rotary kiln, acquiring a predicted energy consumption of the rotary kiln, and monitoring abnormal conditions of rotary kiln operation energy consumption in combination with a preset energy consumption. The application aims to improve the reliability of rotary kiln operation energy consumption abnormality monitoring.

The invention relates to the field of gas pressure anomaly detection, and particularly discloses a catering user gas meter pressure anomaly fluctuation risk early warning method which comprises the following steps: S1, based on historical gas pressure data, determining a pressure upper and lower limit threshold value and a pressure change rate threshold value, and constructing a dynamic gas consumption behavior model; s2, gas pressure data are monitored in real time, when a pressure value exceeds a corresponding threshold value range or a pressure change rate exceeds a corresponding threshold value, pressure abnormity early warning is triggered, and an abnormity type is identified; s3, based on the pressure overrun characteristic and fluctuation characteristic of the gas pressure curve, the risk grade is evaluated, and grading early warning is started; and S4, judging whether fluctuation is synchronous or not and carrying out fault positioning by synchronously analyzing time-space correlation characteristics of the gas pressure curve and the gas flow curve. Through multi-dimensional feature analysis, dynamic modeling and comprehensive risk assessment, abnormity can be accurately identified, a fault source can be distinguished, and the gas use safety and the operation and maintenance efficiency are effectively improved.

The invention relates to the technical field of gas flow measurement, in particular to a self-calibration MEMS (micro-electromechanical system) ultrasonic flowmeter based on an AI (artificial intelligence) algorithm, which adopts a high-frequency MEMS ultrasonic probe, a low-power-consumption driving circuit and an acoustic / electrical impedance matching structure to realize efficient transmission and stable excitation of ultrasonic signals; a low-power-consumption microcontroller and an AI compensation module are arranged in the flowmeter, temperature, pressure, time of flight (TOF) and actual sound velocity measured in a static gas state are fused, dynamic correction and intelligent analysis of gas flow are achieved, and the measurement precision in a low-flow-velocity section and under complex working conditions is remarkably improved. The device supports an event-driven low-power-consumption working mode, and long-term battery power supply and modular deployment can be realized; compared with a traditional PZT flowmeter, the scheme has better integration, stability and adaptability while reducing system cost and power consumption, and is suitable for new-generation intelligent gas meters and industrial gas flow monitoring scenes.

The utility model discloses a gas sampling device for environmental monitoring, which particularly relates to the field of environmental monitoring and comprises a sampling box, and an auxiliary sampling mechanism is mounted in the sampling box. By arranging the auxiliary sampling mechanism, the detection accuracy of environmental gas is improved, the whole device is placed in an environment needing to be monitored, gas in the environment needing to be monitored is sucked in through the sampling pipe by starting the pump body, the gas passes through the pump body and then is transmitted to the injection pipe through the corrugated pipe, and therefore the fixed disc is controlled to move downwards through the hydraulic rod; the injection pipe penetrates through the first butyl rubber plug and the second butyl rubber plug, gas is input into the gas storage tank to be stored, the gas is compressed through the hydraulic rod after being input, the injection pipe is arranged in the processing cavity, and meanwhile the gas meter automatically records and displays the volume or concentration of the gas in the gas storage tank. In the sampling and discharging process, multiple safety measures are taken, and the gas collection sealing effect is improved.

The invention discloses a gas meter leakage alarm device and method, and relates to the technical field of gas meter leakage alarm, the gas meter leakage alarm device comprises a base mechanism, the base mechanism is internally provided with a substrate mechanism used for preventing performance reduction caused by poisoning of a leakage alarm; the bottom of the substrate mechanism is provided with a rotary vane mechanism used for extracting surrounding air for gas detection. The base mechanism is installed at the top of a possible gas leakage area, surrounding air is actively extracted, stable airflow is formed and enters the equipment, the airflow is guided by the inner rotary vane assembly to enter the area of the net wadding assembly, large-particle impurities are effectively filtered through the assembly, internal elements are protected, and the safety of the equipment is improved. And through the linkage design of the inner rotary vane assembly and the rotary assembly, the dynamic change of the air inlet direction and the periodic scanning of the detection airflow path are realized, a multi-point and wide-area coverage sampling mode is formed, the detection range is expanded, and the risk of missing detection caused by local airflow dead angles is avoided.

The invention relates to the technical field of gas meters, in particular to an ultrasonic gas meter which comprises a shell, an ultrasonic pipe, an ultrasonic receiver, a reading module, a gas outlet pipe and a gas inlet pipe. The shell is installed on a wall, the ultrasonic pipe is transversely installed in the shell, the ultrasonic receivers are symmetrically installed on the two sides of the ultrasonic pipe, the reading module is installed at the front end of the shell, and the air outlet pipe and the air inlet pipe are symmetrically installed on the two sides of the top of the shell. The transmission mechanism and the adjusting mechanism are both installed on the inner wall of the upper cavity of the shell, and the transmission mechanism is connected with the adjusting mechanism through a clamping ring. The transmission mechanism drives the half gear to rotate through the motor, the half gear can drive the eccentric gear to rotate, due to the fact that the number of teeth of the half gear is half of that of the eccentric gear, the half gear rotates one circle to drive the eccentric gear to rotate a half circle, and the adjusting mechanism is opened to adjust the gas flow speed after the eccentric gear rotates a half circle.

To provide a technology that can reduce gas pressure loss in gas meters.SOLUTION: The gas meter comprises a tubular measurement flow path section through which the gas to be measured flows, a flow rate measurement section that measures the flow rate of the gas flowing through the measurement flow path section by irradiating ultrasonic waves into the measurement flow path section, a buffer chamber in which the inlet of the measurement flow path section is located and which guides the gas to the inlet of the measurement flow path section, an upstream flow path section that forms a flow path that guides the gas to the buffer chamber, and at least one guide wall section that protrudes from the inner wall surface of the buffer chamber around the inlet of the measurement flow path section in a region outside the inlet of the measurement flow path section when the buffer chamber is viewed in the direction of the central axis, and has a portion that extends toward the inlet side of the measurement flow path section in a region forward of the inlet of the measurement flow path section when viewed in a direction perpendicular to the direction of the central axis.SELECTED DRAWING: Figure 3

A calorific value derivation system is provided with a gas supply facility having a first transmission control unit for transmitting gas component information to a center server, a center server having: an information calculation unit for calculating the gas component information of the gas supply facility, and a gas meter for calculating the gas component information of the gas supply facility; a calculation unit that calculates fuel gas heat relationship information indicating a relationship between a characteristic of the fuel gas and a heat generation amount on the basis of the fuel gas component information, and recalculates the fuel gas heat relationship information in accordance with a change in the fuel gas component information; and a second transmission control unit that transmits the gas heat relationship information to a gas meter, the gas meter having: a flow rate measurement unit that measures the flow rate of the gas on the basis of the characteristics of the gas; a heat coefficient calculation unit that calculates a heat coefficient on the basis of the gas heat relationship information; a calorific value acquisition unit that acquires instantaneous calorific values on the basis of the flow rate of the fuel gas and the calorific value coefficient, and that acquires the calorific value of the fuel gas by integrating the instantaneous calorific values at predetermined time intervals; and a third transmission control unit that transmits the flow rate and the heat generation amount to the center server.

The utility model relates to the technical field of ultrasonic gas meters, in particular to a flow channel module connecting structure and an ultrasonic gas meter. The air outlet pipe comprises an air inlet end and an air outlet end, the flow channel module comprises a connecting end which is inserted in a sealed mode and communicates with the air inlet end of the air outlet pipe, and the connecting end is detachably connected with the air inlet end of the air outlet pipe; the connecting end of the flow channel module is directly inserted into the air inlet end of the air outlet pipe, and then the connecting end is connected with the air inlet end; compared with the prior art, the structure does not need other additional parts to complete installation of the flow channel module, the number of parts is reduced, the overall weight is reduced, and the ultrasonic gas meter is lighter and convenient to transport and install. Meanwhile, due to the simplified structure, the manufacturing cost is reduced, the production and assembly links of redundant parts are omitted, and the production efficiency is improved; and the plug-in connection does not depend on a specific watchcase structure, can be flexibly adapted to watchcases of different models or manufacturers, and is higher in universality.

This invention discloses a composite testing device for the interface connection strength of a gas meter housing, relating to the field of gas meter manufacturing and testing technology. In existing technologies, after the gas meter housing is manufactured, it needs to be transferred to specific equipment for interface pull-out and torsion testing, both typically performed on separate equipment, resulting in low efficiency. The composite testing device provided by this invention is integrally mounted on the fixed pressure plate of a stamping and riveting equipment, comprising: a clamping structure including a clamping cylinder and a clamping linkage assembly, the clamping linkage assembly including a wedge-shaped push block and two clamping parts, the clamping parts having arc-shaped clamping portions for clamping and fixing the interface; a pull-out testing structure applying a straight load at the interface for pull-out strength testing; and a torsion testing structure applying a torsional load to the clamping structure for torsional strength testing. This invention enables direct strength testing after stamping and riveting, eliminating the step of disassembly and reinstallation, improving production testing efficiency, and reducing production costs.

The utility model relates to an ultrasonic gas meter flow regulator. The flow regulator is characterized in that the flow regulator is mounted at a flow channel air inlet of the flow channel and sequentially comprises a scattering layer, a developing layer and a rectifying layer which are integrally formed through injection molding or are assembled and connected in a split manner. The utility model aims to change the original gas flow field distribution, stabilize the flow field characteristics of the metering module and improve the metering precision of the ultrasonic gas meter, and has the characteristics of strong adaptability, convenience in installation and positioning, good flow field stability, high precision and the like.

The utility model relates to the technical field of diaphragm gas meters, and discloses a diaphragm gas meter sampling and counting device which comprises a gas meter body, a diaphragm and a transmission device are arranged in the gas meter body, an output shaft of the transmission device extends out of the gas meter body from the side face, and an output wheel is arranged at the end, located outside the gas meter body, of the output shaft. A sampling wheel is arranged on one side of the output wheel, the sampling wheel is meshed with the output wheel, magnetic steel is arranged on the sampling wheel, a circuit board covers the sampling wheel, a sampling sensor is arranged at the position, opposite to the sampling wheel, of one side, facing the sampling wheel, of the circuit board, the sampling sensor is in wireless connection with the sampling wheel, and a display screen is arranged on the other side of the circuit board. According to the utility model, the output wheel and the sampling wheel are arranged outside the gas meter main body, and the sensor is arranged outside the sampling wheel, so that the influence of internal parts and environment on data transmission can be reduced, the collected data can be corrected, the display error is reduced, and the sampling accuracy is improved.

This utility model discloses a gas metering box, including a metering box body. Both sides of the metering box body have through-holes for pipes. Sealing sleeves are provided on both the inner and outer sides of the through-holes. The sealing sleeves are fixedly connected to the metering box body by adhesive. The end of the sealing sleeve furthest from the metering box body is inclined inwards, and the edge of this end of the sealing sleeve is turned outwards at a 45-degree angle. A restraining ring is fitted on the outer side of this end of the sealing sleeve. The advantage of this utility model is that by using the sealing sleeve to fit against the outer surface of the gas pipe installed through the through-hole, the gap between the gas pipe and the through-hole is sealed, thus preventing external dust and moisture from entering the metering box body. This seal also prevents the pipes and gas meter installed inside the metering box from being corroded by dust and external moisture.

The utility model discloses a gas control system based on an intelligent gas meter display, which is applied to the technical field of gas meter control. Comprising a displayer, an intelligent gas meter, a terminal APP and a cloud platform, the displayer comprises a Bluetooth module, a 4G module, a control module and a liquid crystal display module, the displayer is in communication connection with the intelligent gas meter through Bluetooth connection or wired connection, and the displayer is in communication connection with the terminal APP and the cloud platform through 4G signals. According to the utility model, data such as working condition cumulant, temperature, pressure, flow and the like of the gas meter can be inquired more efficiently, and the gas meter control device has a control function and can communicate with the gas meter in a Bluetooth signal connection or wired connection mode to control a valve of the gas meter.

The utility model discloses a convenient reading device for gas meter, including protective shell, the protective shell front side is installed with the protective door, has opened the inspection window on the protective door, the hinged mirror is hinged to the inspection window, the protective door is connected with the pull rope, the pull rope can drive the rotation of the mirror, the protective door is installed with the cleaning frame, the cleaning frame can clean the inside surface of the mirror.

The utility model relates to the technical field of gas equipment, and particularly discloses display equipment for flexibly displaying icon information of a gas meter, which is characterized in that a fixed arrow icon is configured on a segment code screen based on a general design scheme; custom icon information is configured according to the target design scheme, and the icon information is printed on the plastic shell through the screen printing technology; by updating firmware, the position and the direction of the arrow icon can be flexibly adjusted, and target design scheme requirements of different gas companies are met; and different icon information is flexibly displayed according to the requirements of different gas companies, so that the use convenience and the information display efficiency of the gas meter are improved, and meanwhile, the research and development cost and time of meter manufacturers are reduced.

The utility model discloses a convenient connecting device for a gas meter and a gas pipeline, which belongs to the technical field of gas engineering and comprises a connecting pipe, the gas meter, the gas pipeline and a connecting sleeve, a fixing ring is fixedly connected to the center of the connecting pipe, and a group of first threaded holes distributed in an annular array are formed in each of the left end and the right end of the connecting pipe. A set of second threaded holes distributed in an annular array are formed in the connecting sleeve, matched positioning pins are jointly installed in the first threaded holes and the second threaded holes, an annular groove is formed in the connecting sleeve, an outer sealing ring is fixedly connected in the annular groove, and double sealing is achieved through a first elastic sealing ring and a second elastic sealing ring. The first elastic sealing ring conducts internal sealing on the connecting position through the elastic force of the compression spring, the second elastic sealing ring conducts external sealing through gas expansion of the annular elastic gas bag, the double-sealing design greatly improves the connecting sealing performance, and the gas leakage risk is effectively avoided; and safe and stable operation of the gas supply system is ensured.

To provide a gas meter allowing a terminal board cover to be easily attached / detached without using a tool.SOLUTION: A gas meter includes: a main body having a terminal board; a front cover 5 configured to cover the main body so as to expose the terminal board; and a terminal board cover 7 disposed on the front cover 5 so as to cover the terminal board. The terminal board cover 7 includes a cover body 31 and a hook part 33 having a U-shape and disposed on a back side of the cover body 31. The hook part 33 includes a fixed-end 51; a free-end 53 spaced apart from the cover body 31; a movable part 55 being a portion closer to the free-end 53 than a center part 41 and elastically deformable to a fixed-end 51 side; and an engagement part 57 disposed on an outer contour of the U-shape of the movable part 55. The cover body 31 includes a pore 64 configured to expose the free-end 53 to a front side. The front cover 5 includes: an opening 65 into which the hook part 33 is inserted; and an engagement target part 67 disposed at an inner wall of the opening 65 and configured to engage with the engagement part 57.SELECTED DRAWING: Figure 8

The utility model discloses a self-cleaning ultrasonic gas meter which comprises a gas meter shell, a pipeline is arranged in the gas meter shell, a self-cleaning device is arranged on the pipeline, and the self-cleaning device comprises an installation cavity. A vibration assembly is arranged in the mounting cavity; the vibration assembly comprises a mounting plate, a connecting column and an impact part; one end of the connecting column is fixedly arranged on the mounting plate, and the other end of the connecting column is fixedly connected with the impact part which is used for impacting the outer wall of the pipeline to trigger vibration. According to the gas meter, dirt and sediments in the pipeline can be effectively removed through impact and vibration generated by the vibration assembly, smoothness of the pipeline is guaranteed, and the measuring precision and reliability of the gas meter are improved. And the clean pipeline can reduce the flowing resistance of the gas and improve the flow metering precision of the gas meter, so that the utilization efficiency of the gas is improved.

The application discloses a high-precision digital technology Internet of Things ultrasonic gas meter, and particularly relates to the field of gas meters, which comprises an upper shell and a lower shell connected with each other, the upper end of the upper shell is provided with an air inlet and an air outlet; the inside of the upper shell is provided with a protection cylinder, the protection cylinder comprises an outer cylinder, the inner side of the outer cylinder is provided with an inner tube, the inner tube is communicated with the air inlet, the outer side of the inner tube is provided with an outer tube, one side of the outer cylinder is provided with an air vent, the bottom of the inner tube is provided with a bottom tube, and the inside of the bottom tube is provided with an elastic bag. The protection cylinder, the elastic bag and the plugging device are arranged, when water flows into the gas meter through the gas pipeline, the channel between the inner tube and the outer tube is closed by the deformation of the elastic bag, so that the water continues to flow is prevented, and when the maintenance is carried out, the upper shell and the lower shell do not need to be disassembled, the water can be directly poured out and dried, the integrity of the gas meter is ensured, and the gas meter can be repeatedly used.

The utility model belongs to the technical field of valves, and discloses a gas meter front valve and a key thereof, which comprise a valve body, a valve rod and a handle, a valve ball is arranged in the valve body, the valve ball is provided with a valve ball channel and a rotating groove, a first end of the valve rod is connected with the handle, a second end of the valve rod forms a rotating bump, the rotating bump is inserted into the rotating groove, and the valve rod is driven by rotating the handle. The position of a valve ball channel is changed, and the inside of the valve body is controlled to be switched on and off; a positioning protruding block is formed at the first end of the valve rod, a locking positioning groove is formed in the side face of the positioning protruding block, a spring and a locking magnet are sequentially arranged in the locking positioning groove, and a locking groove is formed in the inner side face of the handle. By designing a locking mechanism, a user is prevented from opening the valve arbitrarily, benefits of a gas company and life and property safety of the user are guaranteed, it can be guaranteed that the gas valve cannot be opened under the condition that a pipeline is abnormal or the user has potential safety hazards, and possible safety accidents such as fire disasters and explosions are avoided.

This invention discloses a high and low temperature gas flow rate calibration system, characterized by: a calibration gas circulation loop, in which a gas supply system, a standard module, a calibration module, and a flow drive control module are connected in series via sealed pipes; a temperature control system and a calibration control system are also included; the temperature control system includes a heat exchange module and a refrigeration / heating unit; the heat exchange module has a sealed cavity inside, and a section of gas delivery pipe made of thermally conductive metal material seals through the sealed cavity in the calibration gas circulation loop of the high and low temperature gas flow rate calibration system; the refrigeration / heating unit is used to circulate and supply cooling / heating medium into the sealed cavity of the heat exchange module; heat exchange modules are provided on both the gas input and output sides of the gas meter under test in the high and low temperature gas flow rate calibration system. This invention has the advantage of being able to better simulate different operating conditions of gas meters, resulting in more objective and accurate calibration results.

The application discloses an automatic processing production line for a gas meter valve seat and relates to the field of gas meter production equipment, which comprises a main production line for conveying valve seats, and is sequentially provided with an injection molding station, a water port folding station, a sand blasting station, a baking station, a grinding station, a cleaning station, a detection station and a stacking station along the main production line, and a plurality of mechanical hands are arranged along the conveying and placing of the main production line, the valve seats are carried at different stations by the mechanical hands, automatic injection molding, automatic water port folding, automatic sand blasting, automatic baking, automatic grinding, automatic cleaning, automatic detection and automatic stacking of the valve seats are realized, and the production efficiency of the valve seat is improved from the whole production link. The application has the effect of improving the production efficiency of the valve seat.

The invention relates to the technical field of gas meter production equipment, in particular to a gas meter movement group detection assembly line. The leakage detection unit, the rocker assembly unit and the running-in unit are sequentially arranged at the position adjacent to the first conveying mechanism in the conveying direction of the first conveying mechanism. The second conveying mechanism is provided with a circulating path and is used for receiving the running-in movement group; according to the scheme, a plurality of key procedures of leakage detection, rocker assembly, running-in, error detection, clip assembly and the like of the movement group are integrated on a unified assembly line, so that the inter-procedure material transfer and waiting time is shortened, the continuity and automation of the production process are realized, and the production efficiency is greatly improved; and the second conveying mechanism is provided with a circulation path, and is matched with the error curve detection unit and the error correction unit, so that automatic shunting, correction and recycling detection of unqualified movement groups are realized, and manual intervention is reduced as much as possible.

The utility model discloses a gas meter protection device for airport logistics, and relates to the technical field of airport logistics, the gas meter protection device comprises a fixed seat, two sides of the outer surface of the fixed seat are respectively provided with a first chute and a second chute, the second chute is internally connected with a guide frame, and one side of the guide frame is connected with a protection plate; a support is fixed to the top of the protection plate, and a fixing plate is fixed above the outer surface of the fixing base. Through the arrangement of the protection plate, the first sliding groove, the second sliding groove and the guide frame, different from a traditional protection device, a box door on the surface of the device is opened during overhauling, the protection plate is transversely slid firstly to be separated from the first sliding groove, then the protection plate is turned over by a half cycle, and the protection plate is moved to the position below the gas meter body; at the moment, the surface and two sides of the gas meter main body are exposed, and most space at the top of the gas meter main body is exposed, so that the operation space is large and is convenient to overhaul, disassemble and assemble; the device can be unfolded, and is large in operation space and convenient to overhaul, disassemble and assemble.

1. Name of the product in this design: Gas meter housing. 2. Purpose of this design: This design is used for the housing of a natural gas meter. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model discloses a kind of gas meter air tightness detection equipment, including detection box structure, placing plate structure and detection butt joint structure, the surface of the detection box structure is fixedly connected with placing plate structure, the surface of the detection box structure is movably connected with detection butt joint structure, the surface of the detection butt joint structure is screw-connected with tightening knob, the surface of the detection box structure is placed with gas meter device, a kind of gas meter air tightness detection equipment in the utility model, by setting placing plate structure, the gas meter device on its surface is fixedly clamped, so as to keep in the middle stable, avoid the shift when device detection butt joint, and the situation of inclination occurs, by setting detection butt joint structure and detection box structure, the position and pitch of butt joint are conveniently adjusted, so that it can butt joint different size models of gas equipment, improve the applicability of device.