PCBA board aging test system and method of internet of things water meter

Abstract

The application is suitable for the field of water meter testing, and provides a PCBA board aging test system and method of a water meter of Internet of Things. The PCBA board aging test system of the water meter of Internet of Things comprises a frame structure, a plurality of embedded plates for supporting PCBA boards are arranged on the frame structure, the embedded plates are hollow structures, and a movable abutting plate is arranged in the embedded plates, and the two ends of the abutting plate are provided with connecting plates which are movably arranged through the embedded plates; a mounting plate is vertically mounted on the embedded plate, a contact for electrifying the PCBA board placed on the embedded plate is movably arranged on the mounting plate; the contact is connected with a telescopic sleeve mounted on the mounting plate, the telescopic sleeve is connected with a driving mechanism mounted between the mounting plate and the connecting plate; a spring rod is movably arranged on the driving mechanism, one end of the spring rod is provided with a moving block in sliding connection with the driving mechanism, a No. 1 spring is sleeved on the spring rod, a roller in rolling connection with a baffle fixed on the mounting plate is rotatably mounted on the moving block, and batch detection is realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of water meter testing, and particularly relates to a PCBA board aging test system and method for an Internet of Things water meter. BACKGROUND

[0002] An intelligent water meter is a new type of water meter using modern microelectronic technology, modern sensing technology and intelligent IC card technology to measure water consumption and perform water consumption data transmission and settlement transaction. Compared with a traditional water meter which generally only has the functions of flow acquisition and mechanical pointer display of water consumption, the intelligent water meter is a great progress. In addition to recording and electronically displaying water consumption, the intelligent water meter can also control water consumption according to an agreement, automatically calculate water fees according to a tiered water price, and store water consumption data.

[0003] In the intelligent water meter, a PCBA board is often used for circuit integration, and therefore the PCBA board needs to be detected in the production process of the intelligent water meter to ensure that the processed intelligent water meter has good working stability and detection accuracy in use.

[0004] In the detection of the existing PCBA board, multiple groups of PCBA boards are often detected at the same time to improve detection efficiency, and each test device needs to measure 700-800 water meters, which makes the total current as high as 700-800 amperes when powered on, and is prone to fire hazard. SUMMARY

[0005] The application provides a PCBA board aging test system and method for an Internet of Things water meter, and aims to solve the problem of too large current in the power-on process of the existing detection device.

[0006] The application is implemented as follows: a PCBA board aging test system for an Internet of Things water meter, comprising:

[0007] A frame structure is arranged on a horizontal ground, and a plurality of embedded plates for receiving PCBA boards are arranged on the frame structure, the embedded plates are hollow structures, and a movable abutting plate is arranged in the embedded plates, and the abutting plate is provided with connecting plates movably arranged through the embedded plates at both ends;

[0008] A mounting plate is vertically mounted on the embedded plate, and a contact for electrifying the PCBA board arranged on the embedded plate is movably arranged on the mounting plate;

[0009] The contact is connected with a telescopic sleeve mounted on the mounting plate, and the telescopic sleeve is connected with a driving mechanism mounted between the mounting plate and the connecting plate;

[0010] The driving mechanism is movably provided with a spring rod, one end of the spring rod is provided with a moving block in sliding connection with the driving mechanism, and a spring is sleeved on the spring rod, and a roller wheel is rotatably installed on the moving block and in rolling connection with a baffle fixed on the mounting plate.

[0011] Further, the frame structure comprises a horizontally arranged base, two air cylinders symmetrically mounted on the base, a cross plate connected with the telescopic ends of the two air cylinders and parallel to the base.

[0012] The cross plate is connected with a plurality of parallel arranged partition plates, and a plurality of the embedded plates are arranged at equal intervals on the cross plate and the partition plates.

[0013] Further, the telescopic sleeve assembly comprises a guide rod fixedly mounted on the mounting plate, and a telescopic sleeve plate slidingly arranged on the guide rod.

[0014] The lower part of the telescopic sleeve plate is provided with an adapter plate, the two ends of the adapter plate are connected with the contact, and the telescopic sleeve plate is connected with the driving mechanism.

[0015] Further, the driving mechanism comprises a meshing structure arranged between the connecting plate and the mounting plate, a bevel gear set connected with the meshing structure and arranged on the mounting plate, and a trigger assembly connected with the bevel gear set through a belt and arranged on the mounting plate.

[0016] The trigger assembly is connected with the telescopic sleeve plate.

[0017] The bevel gear set comprises a first bevel gear connected with the meshing structure and rotatably mounted on the mounting plate, and a second bevel gear meshing with the first bevel gear and rotatably mounted on the mounting plate, the second bevel gear being connected with the trigger assembly through the belt.

[0018] Further, the meshing structure comprises a gear rotatably mounted on the mounting plate, and a plurality of teeth meshing with the gear and arranged at equal intervals along the length direction of the connecting plate.

[0019] The rotation shaft of the gear is meshed with the first bevel gear.

[0020] Further, the trigger assembly comprises an abutting structure rotatably mounted on the mounting plate and connected with the bevel gear set through the belt, a protrusion arranged at the end of the abutting structure away from the rotation shaft center of the mounting plate, and a guide groove matched with the protrusion and arranged on the telescopic sleeve plate.

[0021] Further, the abutting structure comprises a rotating plate rotatably installed on the mounting plate, a trigger lever coaxially arranged with the rotating plate and rotatably installed on the mounting plate, a pulley rotatably installed on the rotating plate, and a sector track matched with the pulley and arranged on the trigger lever.

[0022] The rotating shaft of the rotating plate is connected with the bevel gear set through the belt.

[0023] The trigger lever is provided with a protruding part, and the protruding part is provided with a through hole for sliding of the spring rod.

[0024] Further, the contact is further provided with a buffer assembly, and the buffer assembly comprises a limiting ring fixedly installed on the contact, a rubber damping sleeve sleeved on the contact, and a second spring sleeved on the contact.

[0025] One end of the second spring is connected with the limiting ring, and the other end is connected with the rubber damping sleeve.

[0026] A use method of the PCBA board aging test system of the Internet of Things water meter, comprising the following steps:

[0027] Step one, adjust the height of the cross plate and the partition plate through the control cylinder, so as to reach a work station convenient for workers to operate;

[0028] Step two, insert the PCBA board into the embedded plate until the PCBA board abuts against the abutting plate, and continue to push in, in the process, the gear is rotated under the action of the rack plate, and the rotating plate is driven to rotate through the bevel gear set, at the same time, the pulley on the rotating plate abuts against the side wall on one side of the sector track, the trigger lever is driven to rotate, the spring rod is displaced under the action of the baffle, and the first spring is compressed, until the trigger lever rotates to the horizontal state, the elastic potential energy of the first spring is released, the telescopic sleeve plate is lowered, and then the rubber damping sleeve and the contact are abutted against the PCBA board in sequence, and the fixing and connection are completed.

[0029] Step three, control the power-on and start-stop of each contact through the MCU to detect the PCBA board.

[0030] Step four, take down the PCBA board after detection to perform the next round of detection.

[0031] Compared with the prior art, the beneficial effects of the present application are:

[0032] Because the existing intelligent water meter is in the detection PCBA board, the instantaneous current is too large when power on, easy to have the risk of misfire, so we will detect the equipment grouping control, namely the detection equipment is composed of multiple detection devices, each detection device can be inserted multiple PCBA boards, so that the single detection device when power on, the current is relatively small, avoid when power on, the current is too large to cause misfire phenomenon;

[0033] By setting the frame structure, the mounting station of the PCBA board can be adjusted, which is convenient for workers to operate when inserting the PCBA board;

[0034] By setting the telescopic sleeve and the driving mechanism, the PCBA board is fixed while realizing the connection of the route, shortening the detection steps and improving the detection speed. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application.

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0037] Figure 1 is a three-dimensional structure schematic diagram provided by the present application.

[0038] Figure 2 is a structure schematic diagram of the frame structure provided by the present application.

[0039] Figure 3 is a partial structure schematic diagram provided by the present application.

[0040] Figure 4 is Figure 3 is an enlarged schematic diagram of the structure at A in the middle.

[0041] Figure 5 is a disassembly structure schematic diagram of the chimeric plate, the abutment plate and the connecting plate provided by the present application.

[0042] Figure 6 is a structure schematic diagram of the buffer assembly and the telescopic sleeve provided by the present application.

[0043] Reference signs:

[0044] 1-base, 2-cylinder, 3-cross plate, 4-baffle, 5-embedded plate, 6-abutment plate, 7-connection plate, 8-tooth, 9-gear, 10-bevel gear set, 11-belt, 12-rotating plate, 13-pulley, 14-trigger lever, 15-fan-shaped track, 16-telescopic sleeve plate, 17-guide rod, 18-guide groove, 19-spring rod, 20-first spring, 21-moving block, 22-baffle, 23-adapter plate, 24-contact, 25-limiting ring, 26-second spring, 27-rubber shock absorbing sleeve, 28-mounting plate. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples.

[0046] In order to effectively describe the embodiments of the present application, the embodiments of the present application are described in detail below with reference to the drawings.

[0047] Please refer to Figures 1-6 The present application provides a PCBA board aging test system and method for a water meter of Internet of Things, to solve the problem of too large current during power-on of the existing detection equipment.

[0048] The PCBA board aging test system for a water meter of Internet of Things provided by the embodiments of the present application comprises:

[0049] The frame structure is arranged on a horizontal ground and is provided with a plurality of embedded plates 5 for receiving PCBA boards thereon, the embedded plates 5 are of a hollow structure and are provided with movable abutment plates 6 inside, and the two ends of the abutment plates 6 are provided with connection plates 7 movably arranged through the embedded plates 5.

[0050] The frame structure comprises a base 1 arranged horizontally, two cylinders 2 symmetrically mounted on the base 1, and a cross plate 3 connected with the telescopic ends of the two cylinders 2 and parallel to the base 1.

[0051] The cross plate 3 is connected with a plurality of parallel arranged baffle plates 4, and a plurality of embedded plates 5 are arranged at equal intervals on the cross plate 3 and the baffle plates 4.

[0052] The height of the cross plate 3 and the baffle plates 4 can be adjusted by controlling the telescopic amount of the cylinders 2, which facilitates manual operation.

[0053] The two cylinders 2 are connected through an electrical switch, so that they are lifted synchronously and the telescopic amount is consistent at the same time, avoiding damage to the structure of the cross plate 3.

[0054] An installation plate 28 is vertically installed on the embedded plate 5, and a contact 24 for electrifying a PCBA plate placed on the embedded plate 5 is movably arranged on the installation plate 28;

[0055] The contact 24 is connected with a telescopic sleeve set installed on the installation plate 28, and the telescopic sleeve set is connected with a driving mechanism installed between the installation plate 28 and the connecting plate 7;

[0056] A spring rod 19 is movably arranged on the driving mechanism, one end of the spring rod 19 is provided with a moving block 21 in sliding connection with the driving mechanism, and a spring 20 is sleeved on the spring rod 19, and a roller wheel is rotatably installed on the moving block 21 and in rolling connection with a baffle 22 fixed on the installation plate 28;

[0057] The telescopic sleeve set comprises a guide rod 17 fixedly installed on the installation plate 28 and a telescopic sleeve plate 16 movably arranged on the guide rod 17;

[0058] A connecting plate 23 is installed on the lower part of the telescopic sleeve plate 16, two ends of the connecting plate 23 are connected with the contact 24, and the telescopic sleeve plate 16 is connected with the driving mechanism;

[0059] The driving mechanism comprises a meshing structure arranged between the connecting plate 7 and the installation plate 28, a bevel gear set 10 connected with the meshing structure and arranged on the installation plate 28, and a trigger assembly connected with the bevel gear set 10 through a belt 11 and arranged on the installation plate 28;

[0060] The trigger assembly is connected with the telescopic sleeve plate 16;

[0061] The bevel gear set 10 comprises a first bevel gear connected with the meshing structure and rotatably installed on the installation plate 28, and a second bevel gear meshing with the first bevel gear and rotatably installed on the installation plate 28, the second bevel gear is connected with the trigger assembly through the belt 11;

[0062] The meshing structure comprises a gear 9 rotatably installed on the installation plate 28 and a plurality of teeth 8 meshing with the gear 9 and equidistantly arranged along the length direction of the connecting plate 17;

[0063] The rotation shaft of the gear 9 is meshed with the first bevel gear;

[0064] The trigger assembly comprises an abutting structure rotatably installed on the installation plate 28 and connected with the bevel gear set 10 through the belt 11, a protrusion arranged on the end of the abutting structure away from the rotation shaft center of the installation plate 28, and a guide groove 18 matched with the protrusion and arranged on the telescopic sleeve plate 16;

[0065] The abutting structure comprises a rotating plate 12 rotatably mounted on the mounting plate 28, a trigger lever 14 coaxially arranged with the rotating plate 12 and rotatably mounted on the mounting plate 28, a pulley 13 rotatably mounted on the rotating plate 12, and a sector track 15 matched with the pulley 13 and arranged on the trigger lever 14;

[0066] The rotating shaft of the rotating plate 12 is connected with the bevel gear set 10 through the belt 11;

[0067] The trigger lever 14 is provided with a protruding portion, and the protruding portion is provided with a through hole for sliding of the spring lever 19.

[0068] In use, the PCBA board is inserted into the fitting plate 5 until the PCBA board abuts against the abutting plate 6, and then is continuously pushed in, in the process, the gear 9 is rotated under the action of the rack plate 8, and drives the rotating plate 12 to rotate through the bevel gear set 10, at the same time, the pulley 13 on the rotating plate 12 abuts against the side wall on one side of the sector track 15, drives the trigger lever 14 to rotate, and the spring lever 19 is displaced under the action of the baffle 22 and compresses the first spring 20, until the trigger lever 14 rotates to the horizontal state, the first spring 20 releases the elastic potential energy, drives the telescopic sleeve plate 16 to descend, and then the contact 24 abuts against the PCBA board.

[0069] The contact 24 is further provided with a buffer assembly, the buffer assembly comprises a limiting ring 25 fixedly mounted on the contact 24, a rubber shock-absorbing sleeve 27 sleeved on the contact 24, and a second spring 26 sleeved on the contact 24;

[0070] One end of the second spring 26 is connected with the limiting ring 25, and the other end is connected with the rubber shock-absorbing sleeve 27.

[0071] In the process of downward movement of the contact 24, the rubber shock-absorbing sleeve 27 first contacts the PCBA board, avoiding direct contact of the contact 24 with the PCBA board, so as to avoid damage to the structure of the contact 24.

[0072] In the embodiment of the application, a use method of the PCBA board aging test system of the Internet of Things water meter comprises the following steps:

[0073] Step one, adjust the height of the cross plate 3 and the partition plate 4 through the control cylinder, so as to reach a work station convenient for workers to operate;

[0074] Step two, insert the PCBA board into the embedded plate 5 until the PCBA board abuts against the abutting plate 6, and continue to push inwards, in the process, the gear 9 rotates under the action of the rack plate 8, and drives the rotating plate 12 to rotate through the bevel gear set 10, at the same time, the pulley 13 on the rotating plate 12 abuts against the side wall of one side of the sector track 15, drives the trigger lever 14 to rotate, makes the spring lever 19 displace under the action of the baffle 22, and compresses the first spring 20, until the trigger lever 14 rotates through the horizontal state, the first spring 20 releases the elastic potential energy, drives the telescopic sleeve plate 16 to descend, and then makes the rubber shock absorbing sleeve 27 and the contact 24 abut against the PCBA board in turn, completes the fixation and connection;

[0075] Step three, control the power-on and start-stop of each contact 24 through the MCU to detect the PCBA board;

[0076] Step four, take down the PCBA board after the detection is completed, and carry out the next round of detection.

[0077] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A PCBA board aging test system of an Internet of Things water meter, characterized in that, The utility model provides a kind of rack structure, including: Rack structure is arranged on horizontal ground, and a plurality of embedded plates for receiving PCBA board are arranged on it, the embedded plate is hollow structure, and movable abutting plate is arranged in it, both ends of the abutting plate are provided with connecting plate, and the connecting plate is movably arranged through the embedded plate; Mounting plate is vertically mounted on the embedded plate, and the mounting plate is movably provided with contact for energizing PCBA board placed on the embedded plate; The contact is connected with telescopic sleeve set mounted on the mounting plate, and the telescopic sleeve set is connected with driving mechanism mounted between the mounting plate and the connecting plate; Spring rod is movably arranged on the driving mechanism, one end of the spring rod is provided with moving block slidably connected with the driving mechanism, and a spring is sleeved on the spring rod, the moving block is rotatably mounted with roller rollably connected with baffle fixed on the mounting plate; The telescopic sleeve set includes guide rod fixedly mounted on the mounting plate and telescopic sleeve plate slidably arranged on the guide rod; Lower portion of the telescopic sleeve plate is provided with abutment plate, both ends of the abutting plate are connected with the contact, and the telescopic sleeve plate is connected with the driving mechanism; The driving mechanism includes gear structure arranged between the connecting plate and the mounting plate, bevel gear set connected with the gear structure and arranged on the mounting plate, trigger assembly connected with the bevel gear set through belt and arranged on the mounting plate; The trigger assembly is connected with the telescopic sleeve plate; The bevel gear set includes a first bevel gear connected with the gear structure and rotatably mounted on the mounting plate, and a second bevel gear rotatably mounted on the mounting plate and engaged with the first bevel gear, the second bevel gear is connected with the trigger assembly through the belt; The gear structure includes a gear rotatably mounted on the mounting plate, and a plurality of teeth equidistantly arranged along the length direction of the connecting plate and engaged with the gear; The rotation shaft of the gear is engaged with the first bevel gear; The trigger assembly includes an abutting structure rotatably mounted on the mounting plate and connected with the bevel gear set through the belt, a protrusion arranged on the abutting structure away from the rotation shaft center of the mounting plate, and a guide groove arranged on the telescopic sleeve plate and matched with the protrusion; The abutting structure includes a rotating plate rotatably mounted on the mounting plate, a trigger rod coaxially arranged with the rotating plate and rotatably mounted on the mounting plate, a pulley rotatably mounted on the rotating plate, and a sector track arranged on the trigger rod and matched with the pulley; The rotation shaft of the rotating plate is connected with the bevel gear set through the belt; The trigger rod is provided with a protruding portion, and the protruding portion is provided with a through hole for sliding of the spring rod.

2. The PCBA board burn-in test system of the IoT water meter of claim 1, wherein, The rack structure includes a base arranged horizontally, two air cylinders symmetrically mounted on the base, a cross plate connected with the telescopic ends of the two air cylinders and parallel to the base; The cross plate is connected with a plurality of parallel arranged partition plates, and a plurality of embedded plates are equidistantly arranged on the cross plate and the partition plates.

3. The PCBA board burn-in test system of the IoT water meter of claim 1, wherein, The contact is further provided with a buffer assembly, which comprises a limiting ring fixed on the contact, a rubber shock-absorbing sleeve sleeved on the contact, and a second spring sleeved on the contact. One end of the second spring is connected with the limiting ring, and the other end is connected with the rubber shock-absorbing sleeve.

4. A method of using a PCBA board burn-in test system for an Internet of Things water meter as claimed in any one of claims 1 to 3, characterized in that, The method comprises the following steps: Step one, adjust the height of the cross plate and the partition plate through the control cylinder, so as to reach a working position convenient for workers to operate; Step two, insert the PCBA board into the embedded plate until the PCBA board abuts against the abutting plate, and continue to push inward, in the process, the gear rotates under the action of the gear teeth, and drives the rotating plate to rotate through the bevel gear set, at the same time, the pulley on the rotating plate abuts against the side wall of one side of the sector track, drives the trigger rod to rotate, so that the spring rod is displaced under the action of the baffle and compresses the first spring, until the trigger rod rotates to the horizontal state, the first spring releases the elastic potential energy, drives the telescopic sleeve plate to descend, and then the rubber shock-absorbing sleeve and the contact abut against the PCBA board in turn, and the fixing and connection are completed; Step three, control the power-on and start-stop of each contact through the MCU to detect the PCBA board; Step four, take down the detected PCBA board for the next round of detection.

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