A gas meter main board detection device and its detection method

Abstract

The present invention belongs to the technical field of detection equipment, and discloses a gas meter main board detection device and a detection method thereof, which can simultaneously perform rapid detection on multiple gas meter main boards, improving the detection speed of the gas meter main boards. Moreover, during the detection process, through the limiting effects of the first limiting member and the third limiting member, violent collision contacts of the gas meter main boards during the detection process are avoided, and damage to the gas meter main boards during the detection process is avoided. In addition, on the basis of ensuring that there are no exciting collision contacts of the gas meter main boards, the pressure applied to the gas meter main boards by the ejector pins enables the test points on the gas meter main boards to be in close contact with the probes, realizing the effective transmission of detection signals and improving the detection accuracy of the gas meter main boards.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection equipment, and particularly relates to a gas meter main board detection device and a detection method thereof. Background Art

[0002] In the natural gas industry, electronic gas meters are often used to complete various data detections. The main board of the gas meter is the core component of the electronic gas meter, and the quality of the main board of the gas meter directly affects the performance of the electronic gas meter. A plurality of electronic components with different functions are integrated on the main board of the gas meter, and the quality of the welding of these electronic components directly affects various detection functions of the gas meter. Therefore, after the main board of the gas meter is manufactured, various functions of the main board of the gas meter need to be tested. For example Figure 1 when the existing main board 1 of the gas meter is manufactured, test points 11 are left, and the external detection device is connected to the test points 1 to start the detection.

[0003] However, the existing gas meter main board detection devices are all improved from the direction of how to increase the detection categories, and there is less research on how to batch-detect the main board of the gas meter through the detection device. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a gas meter main board detection device and a detection method thereof to batch-detect the main board of the gas meter.

[0005] The present invention solves the above technical problems through the following technical means:

[0006] A gas meter main board detection device includes a detection tooling; the detection tooling includes a base; a lifting mechanism fixed on the base; and a main board plugging mechanism and a main board clamping mechanism driven by the lifting mechanism; wherein, the main board plugging mechanism and the main board clamping mechanism are opposite up and down, and a first carrier plate is movably installed between the main board plugging mechanism and the main board clamping mechanism; a plurality of main board detection positions are distributed on the first carrier plate.

[0007] A main board detection method based on the above gas meter main board detection device includes a main board connection method, controlling the lifting mechanism to lift so that the probes of the main board plugging mechanism abut against the main board of the gas meter; continuing to lift the main board plugging mechanism so that the main board clamping mechanism clamps the main board of the gas meter, and completing the plugging and clamping of the main board of the gas meter.

[0008] The effects of the above solution are as follows:

[0009] By installing multiple gas meter main boards at the main board detection positions, starting the lifting mechanism to drive the main board plugging mechanism to plug with the test points on the gas meter main board, connecting the signal transmission channel between the gas meter main board and the external control device, and simultaneously quickly detecting multiple gas meter main boards, the detection speed of the gas meter main board is improved.

[0010] In addition, the main board plugging mechanism and the main board clamping mechanism respectively apply a pressure to both sides of the gas meter main board, so that the test points of the gas meter main board can be in close contact with the main board plugging mechanism, ensuring the effective transmission of detection signals and improving the detection accuracy.

[0011] The present invention also provides a detection method for a gas meter main board detection device, including a main board detection method:

[0012] Confirm the category of the main board detection items;

[0013] If the category of the main board detection items is the first category, send a first-category detection instruction to the tooling control board so that the tooling control board distributes the first-category detection instruction to the gas meter main board;

[0014] Obtain the first-category detection results returned by the gas meter main board;

[0015] If the category of the main board detection items is the second category, sequentially execute the second-category detection steps according to the second-category item sequence;

[0016] Sequentially obtain the second-category detection data returned by the gas meter main board;

[0017] Analyze the second-category detection data to obtain the second-category detection results;

[0018] If the category of the main board detection items is the third category, send a third-category detection instruction to the tooling control board so that the tooling control board distributes the third-category detection instruction to the gas meter main board;

[0019] Obtain the third-category detection results.

[0020] The effects of this solution are as follows:

[0021] By classifying the detection items of the gas meter main board, the first category can obtain the detection results by the gas meter main board itself, and the second category can obtain the detection results by the tooling control board, realizing the optimization of the detection steps for numerous detection items of the gas meter main board and improving the batch detection efficiency of the gas meter main board. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of a gas meter main board in the prior art;

[0023] Figure 2It is a schematic structural diagram of the gas meter main board detection device of the present invention;

[0024] Figure 3 It is a schematic structural diagram of the gas meter main board detection device of the present invention after removing the baffle;

[0025] Figure 4 It is a top view of the gas meter main board detection device of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the support frame in the present invention;

[0027] Figure 6 is Figure 5 a partial enlarged view of part A in;

[0028] Figure 7 It is a schematic structural diagram of the present invention when there is a handle on the second carrier;

[0029] Figure 8 It is a schematic circuit structure diagram of the gas meter main board detection device of the present invention when detecting three gas meter main boards;

[0030] Wherein: 100 - gas meter main board detection device, 1 - gas meter main board, 2 - tooling control board, 11 - test point, 10 - host computer, 20 - detection tooling, 21 - base, 211 - accommodation cavity, 212 - observation chamber, 213 - opening indicator light, 214 - closing indicator light, 215 - key, 2151 - start key, 2152 - close key, 22 - lifting mechanism, 221 - cylinder, 23 - main board plugging mechanism, 231 - telescopic rod, 232 - second carrier plate, 233 - detection part, 2331 - probe, 234 - second limiting part, 24 - main board clamping mechanism, 241 - abutting plate, 242 - support shaft, 243 - ejector post, 244 - first limiting part, 245 - reinforcing plate, 2451 - observation port, 25 - first carrier plate, 251 - main board detection position, 252 - plate body, 2521 - handle, 253 - support frame, 2531 - L-shaped notch, 2532 - clamping block, 2533 - rectangular part, 2534 - guiding part, 26 - spring, 27 - operation hole Detailed implementation manners

[0031] The following specific embodiments are used to illustrate the implementation manners of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification.

[0032] Please refer to Figures 1 to 8, a gas meter main board detection device 100, includes a host computer 10 and a detection tooling 20 that interacts with the host computer 10; the detection tooling 20 includes a base 21 with a receiving cavity 211; a lifting mechanism 22 fixed on the base 21; a main board plugging mechanism 23 and a main board clamping mechanism 24 driven by the lifting mechanism 22; wherein, the main board plugging mechanism 23 and the main board clamping mechanism 24 are opposite to each other up and down, and a first carrier plate 25 is movably installed between the main board plugging mechanism 23 and the main board clamping mechanism 24; a number of main board detection positions 251 are distributed on the first carrier plate 25;

[0033] Specifically, the lifting mechanism 22 selects a cylinder 221. The cylinder 221 is installed in the receiving cavity 211. The receiving cavity 211 also installs a tooling control board 2 electrically connected to the host computer 10. A button 215 is also provided on the base 21, and the button 215 controls the stroke of the cylinder 221.

[0034] In this way, by installing multiple gas meter main boards on the main board detection positions 251 on the first carrier plate 25, starting the cylinder 221 drives the main board plugging mechanism 23 to be plugged into the test points 11 on the gas meter main board, connecting the signal transmission channel between the gas meter main board and the host computer 10, and at the same time quickly detecting multiple gas meter main boards, improving the detection speed of the gas meter main board.

[0035] In addition, the main board plugging mechanism 23 and the main board clamping mechanism 24 respectively apply a pressure to both sides of the gas meter main board, so that the test points 11 of the gas meter main board can be in close contact with the main board plugging mechanism 23, ensuring the effective transmission of the detection signal and improving the detection accuracy.

[0036] Among them, the main board plugging mechanism 23 includes a telescopic rod 231 fixed on the base 21; a second bearing plate 232 slidably connected to the telescopic rod 231, the second bearing plate 232 being fixedly connected to the air cylinder 221; several detecting members 233 mounted on the second bearing plate 232 and corresponding to the main board detecting positions 251 one by one; and a second limiting member 234 fixed on the second bearing plate 232, the second limiting member 234 being located between the first bearing plate 25 and the second bearing plate 232, and the distance between the second limiting member 234 and the first bearing plate 25 being equal to the distance between the detecting member 233 and the main board detecting position 251; the detecting member is electrically connected to the tooling control board 2, and a probe 2331 is provided on the detecting member. The main board clamping mechanism 24 includes a resisting plate 241 and a top column 243 fixed on the resisting plate 241, the resisting plate 241 being fixedly connected to the bottom plate by a support shaft 242 and located on the side of the first bearing plate 25 away from the main board plugging mechanism 23. The top column 243 is located between the resisting plate 241 and the main board detecting position 251, the second bearing plate 232 includes a support frame 253 fixed at the top end of the telescopic rod 231 and a plate body 252 clamped on the support frame 253, the main board detecting position 251 is opened on the plate body 252, a first limiting member 244 is fixedly installed on the support frame 253, the first limiting member 244 is located between the resisting plate 241 and the first bearing plate 25, and the thickness of the first limiting member 244 in the vertical direction is equal to the length of the top column 243.

[0037] During implementation, multiple gas meter main boards to be tested are successively installed on each detecting position of the main board on the plate body 252. Each first bearing plate 25 has at least two detecting positions. In this embodiment, the number of detecting positions on each first bearing plate 25 is nine. The upper computer 10 is located inside a general computer, and the upper computer 10 and the tooling control board 2 use infrared communication to transmit detection data. The key 215 is electrically connected to the air cylinder 221. The number of keys 215 on the base 21 is two, including a start key 2151 for controlling the push rod of the air cylinder 221 to extend upward and a stop key 2152 for controlling the push rod of the air cylinder 221 to contract downward.

[0038] The principle of this implementation scheme is as follows: First, install the main board of the gas meter on the main board detection position 251 of the first carrier plate 25, so that the test point 11 on the main board of the gas meter to be tested is directly opposite to the probe 2331; then press the start button 2151, so that the cylinder 221 drives the second carrier plate 232 to slide along the telescopic rod 231 towards the first carrier plate 25, and the detection piece fixedly connected to the first carrier plate 25 also moves upward, so that the probe 2331 is inserted into the test point 11 on the main board of the gas meter to be tested to achieve connection. Since the distance between the second limiting piece 234 and the support frame 253 is equal to the distance between the probe 2331 and the main board detection position 251, when the probe 2331 is connected to the test point 11 of the gas meter main board, the top end of the second limiting piece 234 also abuts against the support frame 253, and the first limiting piece will push the support frame 253 upward; then the support frame 253 drives the telescopic rod 231 to extend upward, and the first carrier plate 25 clamped on the support frame 253 also moves upward accordingly until the third limiting piece abuts against the support plate. At the same time, since the distance between the first limiting piece 244 and the abutting plate 241 is equal to the distance between the ejector pin 243 and the main board detection position 251, when the first limiting piece 244 abuts against the abutting plate 241, the ejector pin 243 also abuts against the gas meter main board. Thus, the ejector pin 243 exerts a pressure on the main board of the gas meter in the direction of the probe 2331, so that the probe 2331 is in close contact with the test point 11 on the main board of the gas meter, ensuring the effective transmission of the electrical signal. Finally, the upper computer 10 sends specific detection commands to the tooling control board 2, and the tooling control board 2 inputs detection signals to the main board of the gas meter through the detection piece to execute the detection commands, and transmits the detection results to the upper computer 10. After the detection is completed, press the close button 2152, so that the cylinder 221 drives the second carrier plate 232 to move downward, and the support frame 253 moves downward to the contraction limit position of the telescopic rod 231 under the action of gravity.

[0039] The effect of this implementation scheme is as follows: In this way, multiple main boards of gas meters can be quickly detected simultaneously, improving the detection speed of the main boards of gas meters.

[0040] Moreover, during the detection process, through the limiting effects of the second limiting piece 234 and the first limiting piece 244, violent collision contacts of the main board of the gas meter during the detection process are avoided, and damage to the main board of the gas meter during the detection process is avoided.

[0041] In addition, on the basis of ensuring that there is no violent collision contact of the main board of the gas meter, through the pressure exerted by the ejector pin 243 on the main board of the gas meter, the test point 11 on the main board of the gas meter is in close contact with the probe 2331, realizing the effective transmission of the detection signal and improving the detection accuracy of the main board of the gas meter.

[0042] Specifically, an opening indicator light 213 and a closing indicator light 214, both electrically connected to the tooling control board 2, are also provided on the base 21. They are arranged horizontally one by one with the start button 2151 and the stop button 2152 on the side of the base 21 facing the operator. When the tooling control board 2 is powered on, the opening indicator light 213 is on. When the tooling control board 2 is powered off, the closing indicator light 214 is on.

[0043] Specifically, please refer to 3 and Figure 4 , an observation chamber 212 is also provided on the base 21. The observation chamber 212 is covered with a transparent glass. A gas meter valve electrically connected to the main board of the gas meter to be measured is placed inside. When the main board of the gas meter performs the detection of the valve opening and closing function, the dynamic state of the gas meter valve can be directly observed and known by observation.

[0044] Specifically, please refer to Figure 5 , an L-shaped notch 2531 is provided on the support frame 253. The number of support frames 253 is two. Both ends of the plate body 252 are respectively placed in the L-shaped notches 2531 on the two support frames 253. The longitudinal extension direction of the L-shaped notch 2531 is such that one end is closed and the other end is open. A clamping block 2532 is also fixed on the support frame 253. The clamping block 2532 is located at the open end of the L-shaped notch 2531. The plate body 252 is clamped between the clamping block 2532 and the closed end of the L-shaped notch 2531. The number of plate bodies 252 is at least two.

[0045] In this way, the main boards of the gas meters to be tested are all installed at the main board test positions on the two plate bodies 252. One of them is placed beside for standby. After the main board on the other one is tested along the L-shaped notch 2531, the side of the first carrier plate 25 facing the clamping block 2532 is slightly lifted upwards, and the clamping of the clamping block 2532 on the first carrier plate 25 can be released. Then the plate body 252 is pulled out. Another plate body 252 with the main boards of the gas meters fully installed is inserted again along the open end of the L-shaped notch 2531 to complete the installation and detection. Thus, the speed of batch detection of the gas meters is accelerated.

[0046] Specifically, please refer to Figure 7 , a handle 2521 is fixed on all four sides of the plate body 252. The handles 2521 on the front and back sides are horizontally arranged, which is convenient for pushing and pulling the plate body 252 into and out of the L-shaped notch 2531. The handles 2521 on the left and right sides are vertically arranged, which is convenient for lifting the plate body 252 upwards with both hands to complete the handling after pulling it out of the L-shaped notch 2531, and is also convenient for handling the plate body 252 with the main boards of the gas meters fully installed to the support frame 253.

[0047] In other embodiments of this embodiment, an automatically controlled ejector pin can also be provided. After the gas meter main board on a board body 252 is detected, the board body 252 is ejected, and then a manipulator is used to clamp another board body 252 filled with gas meter main boards onto the support frame 253, which can further improve the speed of batch detection of gas meters.

[0048] Among them, please refer to Figure 5 and Figure 6 , the clamping block 2532 includes a rectangular block and a guiding portion 2534. The rectangular block is fixed on the support frame 253 and is located at the open end of the L-shaped notch 2531. The guiding portion 2534 is integrally formed with the rectangular block and is located on a section of the rectangular block facing the support frame 253. The connection between the guiding portion 2534 and the rectangular block has a rounded transition. The thickness of the guiding portion 2534 is greater than the thickness of the rectangular block, and the outer contour line of the upper surface of the guiding portion 2534 is arc-shaped.

[0049] In this way, when the board body 252 is inserted inward along the open end of the L-shaped notch 2531 for installation, the bottom of the head of the board body 252 first slides along the upper surface of the rectangular block and finally slides inward along the upper surface of the guiding portion 2534 until the board body 252 passes over the guiding portion 2534, and then the board body 252 is clamped between the guiding plate and the closed end of the L-shaped notch 2531. Since the connection between the guiding portion 2534 and the rectangular block has a rounded transition and the outer contour line of the upper surface of the guiding portion 2534 is arc-shaped, the board body 252 can be inserted inward more smoothly. And the thickness of the guiding portion 2534 is greater than the thickness of the rectangular block. Therefore, after the board body 252 is clamped between the guiding portion 2534 and the closed end of the L-shaped notch 2531, without an upward external force, it increases the difficulty of the board body 252 being randomly detached from the support frame 253, thereby avoiding the problem that the board body 252 drives the gas meter under test to displace during detection, resulting in a reduction in detection accuracy.

[0050] Among them, the support frame 253 is made of wear-resistant material.

[0051] During implementation, the support frame 253 is selected from POM material.

[0052] In this way, since the board body 252 is frequently replaced and installed, it will inevitably rub against the support frame 253 frequently. Due to the good wear resistance of POM material, it can play a role in increasing the overall service life of the detection device.

[0053] In addition, due to the small friction coefficient performance of POM material, the first bearing plate 25 slides more smoothly during the replacement process, thereby improving the efficiency of batch detection of gas meter main boards.

[0054] Among them, the abutting plate 241 is made of hard transparent material.

[0055] In this way, the holding plate 241 is made of tempered transparent glass, which can facilitate the operator to observe the main board of the gas meter being detected in real time.

[0056] Among them, please refer to Figure 3 , the main board clamping mechanism 24 further includes a reinforcing plate 245 fixed on the support shaft 242. The reinforcing plate 245 is attached to the surface of the holding plate 241 away from the main board detection position 251, and a plurality of observation ports 2451 corresponding to the main board detection position 251 one by one are opened on the reinforcing plate 245.

[0057] During implementation, the reinforcing plate 245 is made of aluminum alloy material.

[0058] In this way, since the holding plate 241 will be subjected to the upward abutting pressure of the first limiting member 244 on the support frame 253 every time the main board of the gas meter is detected, it is prone to deformation under long-term pressure, resulting in a change in the contact pressure between the ejector pin 243 and the main board of the gas meter to be tested, leading to the problem of detection error. The observation ports 2451 are opened on the aluminum alloy reinforcing plate 245, which can prevent the holding plate 241 from deforming on the basis of not affecting the observation of the main board detection of the gas meter. Furthermore, the detection accuracy of the main board of the gas meter is maintained.

[0059] Among them, please refer to,3, both the upper surfaces of the second bearing plate 232 and the base 21 are provided with operation holes 27, and the orthographic projection area of the operation holes 27 falls on the tooling control board 2. Figure 3 The detection tooling 20 further includes a spring 26. The spring 26 is enclosed outside the telescopic rod 231, and both ends of the spring 26 abut against the first bearing plate 25 and the second bearing plate 232 respectively.

[0060] In this way, when the second bearing plate 232 is driven by the air cylinder 221 to slide upward, the spring 26 plays a role in shock absorption. It reduces the instantaneous pressure when the second limiting member 234 contacts the support frame 253, and also enables the probe 2331 to slowly contact and connect with the test point 11 on the gas meter, avoiding damage to the probe 2331 and the gas meter.

[0061] Among them, please refer to,3, both the upper surfaces of the second bearing plate 232 and the base 21 are provided with operation holes 27, and the orthographic projection area of the operation holes 27 falls on the tooling control board 2.

[0062] In this way, after the detection of the gas meter is completed and the tooling control board 2 fails, when the closing button 2152 is activated, the electric cylinder returns and drives the second bearing plate 232 to move downward, increasing the distance between the second bearing plate 232 and the first bearing plate 25. The operator can reach in through the operation hole 27 by putting his hand between the second bearing plate 232 and the first bearing plate 25 to repair and wire the electrode plate, etc.

[0063] Among them, the lengths of the second limiting member 234 and the first limiting member 24435 are both greater than 4 cm.

[0064] In this way, the thickness of a human hand is generally less than 4 cm, avoiding the problem that a person accidentally puts their hand between the second bearing plate 232 and the first bearing plate 25 and gets pinched, and also avoiding the problem that a person accidentally puts their hand between the first bearing plate 25 and the abutting plate 241 and gets pinched.

[0065] The present invention also provides a detection method for a gas meter main board detection device 100, including a main board connection method and a main board detection method;

[0066] Among them, the main board connection method includes: controlling the lifting mechanism 22 to lift, so that the probe 2331 of the main board plugging mechanism 23 abuts against the gas meter main board; continuing to lift the main board plugging mechanism 23, so that the main board clamping mechanism 24 clamps the gas meter main board, completing the plugging and clamping of the gas meter main board.

[0067] Among them, the main board detection method includes:

[0068] Confirming the category of the main board detection items;

[0069] If the category of the main board detection items is the first category, sending a first-category detection instruction to the tooling control board 2, so that the tooling control board 2 distributes the first-category detection instruction to the gas meter main board;

[0070] Obtaining the first-category detection results returned by the gas meter main board;

[0071] If the category of the main board detection items is the second category, sequentially executing the second-category detection steps according to the second-category item sequence;

[0072] Sequentially obtaining the second-category detection data returned by the gas meter main board;

[0073] Analyzing the second-category detection data to obtain the second-category detection results;

[0074] If the category of the main board detection items is the third category, sending a third-category detection instruction to the tooling control board 2, so that the tooling control board 2 distributes the third-category detection instruction to the gas meter main board;

[0075] Obtaining the third-category detection results.

[0076] The effects of this solution are as follows:

[0077] By classifying the detection items of the gas meter main board, the first category can obtain the detection results by the gas meter main board itself, and the second category can obtain the detection results by the tooling control board 2, realizing the optimization of the detection steps for numerous detection items of the gas meter main board and improving the batch detection efficiency of the gas meter main board.

[0078] During implementation, during detection, first, the starting cylinder 221 is activated, and the probe 2331 of the main board plugging mechanism 23 driven by the cylinder 221 abuts against the test point 11 of the gas meter main board to achieve connection.

[0079] First, classify the detection items of the gas meter main board into the self-check items of the first type of gas meter main board, the single-item detection of the second type of gas meter main board, and the detection items of the third type of gas meter main board.

[0080] For the self-check items of the first type of gas meter main board, the host computer 10 sends a self-check item detection instruction to the tooling control board 2, and the tooling control board 2 sends the category of the first type of main board detection items to the gas meter main board for self-check. The first type of main board detection items are the self-check items of the gas meter main board, including querying software, setting barcodes, reading barcodes, testing barcodes, testing NB communication, testing IMEI, testing SIM cards, testing communication signals, testing internal clocks, testing internal voltages, testing external voltages, testing external storage, and testing external storage. This type of detection items only requires the host computer 10 to send an execution command once, which is distributed by the tooling control board 2 to the gas meter main board. The test results can be obtained once on the gas meter main board, and after being obtained by the tooling control board 2, they are forwarded to the host computer 10 for storage and query.

[0081] For the single-item detection items of the second type of gas meter main board, including testing Hall, testing power-off, opening the gas meter valve cover at this time, testing external leakage alarm, and testing power consumption.

[0082] The host computer 10 respectively sends single-item detection instructions to the tooling control board 2, and the tooling control board 2 controls the single-item detection of the gas meter main board. The host computer 10 obtains the single-item detection data of the gas meter main board.

[0083] Taking the test of power consumption as an example, the host computer 10 sends a power consumption test instruction to the tooling control board 2, and the tooling control board 2 sends this power consumption test instruction to the gas meter main board. The tooling control board 2 respectively controls the power input of 3V and 3.6V to the gas meter main board once. The tooling control board 2 receives the current data on the output line, and the received command is processed by the tooling control board 2 or the host computer 10 to obtain the result of whether the power consumption of the gas meter is normal. The detection processes of other single-item detection items of the second type of gas meter main board are similar to this.

[0084] For the detection items of the third type of gas meter main board, including LED, LCD, or testing the buzzer, etc. The host computer 10 sends a command for the detection items of the third type of gas meter main board to the tooling control board 2, and then the tooling control board 2 forwards it to the gas meter main board for testing. The test data is obtained by other entities, such as manual acquisition, or microphone and image recognition devices, etc.

[0085] By classifying the detection items of the gas meter main board, the first category can obtain the detection results by the gas meter main board itself, and the second category can obtain the detection results by the tooling control board 2, realizing the optimization of the detection steps for many detection items of the gas meter main board and improving the batch detection efficiency of the gas meter main board.

[0086] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A gas meter main board detection device, including a detection tooling, characterized in that: The detection tooling includes a base; and a jacking mechanism fixed on the base; and a main board plugging mechanism and a main board clamping mechanism driven by the jacking mechanism; wherein, the main board plugging mechanism and the main board clamping mechanism are opposite to each other up and down, and a first carrier plate is movably installed between the main board plugging mechanism and the main board clamping mechanism; A number of main board detection positions are distributed on the first carrier plate; The main board clamping mechanism includes a holding plate, the holding plate is fixedly connected to the bottom plate by a support shaft and is located on the side of the first carrier plate away from the main board plugging mechanism; The main board clamping mechanism further includes a top column fixed on the holding plate, the top column is located between the holding plate and the main board detection position, a first limiting member is fixedly installed on the holding plate or the first carrier plate, the first limiting member is located between the holding plate and the first carrier plate, and the thickness of the first limiting member in the vertical direction is equal to the length of the top column; The main board plugging mechanism includes a telescopic rod fixed on the base; and a second carrier plate slidably connected to the telescopic rod, the second carrier plate is fixedly connected to the jacking mechanism; and a number of detection parts installed on the second carrier plate and corresponding to the main board detection positions one by one; and a second limiting member fixed on the second carrier plate, the second limiting member is located between the first carrier plate and the second carrier plate, and the distance between the second limiting member and the first carrier plate is equal to the distance between the detection part and the main board detection position; The second carrier plate includes a support frame fixed at the top end of the telescopic rod and a plate body clamped on the support frame, and the main board detection position is opened on the plate body; an L-shaped notch is opened on the support frame, the number of the support frames is two, both ends of the plate body are respectively placed in the L-shaped notches on the two support frames, the longitudinal extension direction of the L-shaped notch, one end of which is closed and the other end is open, a clamping block is further fixed on the support frame, the clamping block is located at the open end of the L-shaped notch, and the plate body is clamped between the clamping block and the closed end of the L-shaped notch; the number of the plate bodies is at least two.

2. The gas meter main board detection device according to claim 1, characterized in that: The holding plate is made of a hard transparent material.

3. The gas meter main board detection device according to claim 1, characterized in that: The main board clamping mechanism further includes a reinforcing plate fixed on the support shaft, the reinforcing plate is attached to the surface of the holding plate away from the main board detection position, and a number of observation openings corresponding to the main board detection positions one by one are opened on the reinforcing plate.

4. The gas meter main board detection device according to claim 1, wherein: The first carrier plate includes a support frame fixed at the top end of the telescopic rod and a plate body clamped on the support frame, and the main board detection position is opened on the plate body.

5. The gas meter main board detection device according to claim 4, characterized in that: The detection tooling further includes a spring, the spring is enclosed outside the telescopic rod, and both ends of the spring abut against the first carrier plate and the second carrier plate respectively.

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