Gas relay verification device and method

Abstract

The invention discloses a gas relay verification device and method. The device comprises a plurality of test modules, a plurality of connection control structures and a control device. The test module is used for testing the gas relay; one end of each connection control structure is connected with the gas relay, the other end of each connection control structure is arranged corresponding to each test module, and the connection control structures are used for connecting or disconnecting the corresponding test modules and the gas relay; and the control device is configured to control each connection control structure, so that when at least one test module is communicated with the gas relay, the other test modules are disconnected from the gas relay. The to-be-verified gas relay is connected with each test module through the connection control structure, the corresponding test loops can be controlled to be switched on by the control device according to the corresponding test items, and wrong wiring, wrong electric shock and test item mistakes and omissions in gas relay verification work can be effectively prevented by automatically switching test wiring. And the gas relay verification work quality, efficiency and man-machine efficacy are improved.

Description

Technical Field

[0001] This application relates to the field of electrical equipment testing technology, and in particular to a gas relay testing device and method. Background Technology

[0002] The gas relay is the main protection device of the transformer body and is of great significance to the safe and stable operation of the transformer. The power equipment maintenance and testing procedures require that the gas relay be calibrated regularly before the main transformer is put into operation and during operation.

[0003] Currently, the calibration of gas relays typically requires the use of three testing instruments to conduct insulation resistance checks, withstand voltage tests, and reed contact continuity tests. The calibration process requires manual switching of test wiring and operation of testing instruments multiple times. Frequent manual switching of test wiring and operation of testing instruments can easily lead to problems such as incorrect wiring, accidental electric shock, and omissions in test items by test personnel, resulting in high risk, poor quality, low efficiency, and poor human-machine interaction in the calibration work. Summary of the Invention

[0004] This application proposes a gas relay calibration device to effectively solve at least one of the technical problems in related technologies, such as high risk, poor quality, low efficiency, and poor human-machine interaction caused by frequent switching of test wiring.

[0005] This application also proposes a method for calibrating a gas relay.

[0006] The first aspect of this application provides a gas relay calibration device, including: multiple test modules, multiple connection control structures, and a control device;

[0007] Each of the aforementioned test modules is used to test the gas relay;

[0008] One end of each of the connection control structures is used to connect to the gas relay, and the other end of each of the connection control structures is respectively set to correspond to each of the test modules. The connection control structure is used to connect or disconnect the corresponding test module from the gas relay.

[0009] The control device is configured to control each of the connection control structures such that when at least one of the test modules is connected to the gas relay for testing, the other test modules are disconnected from the gas relay.

[0010] Furthermore, the connection control structure includes a control component and a connection component. The connection component is used to connect to the gas relay. One end of the control component is connected to the connection component, and the other end of the control component is connected to the test module. The control component is used to connect or disconnect the test module from the gas relay.

[0011] Furthermore, the control component includes a first driving element, a first insulating block, a first conductive block, a second conductive block, a first elastic component, and a second elastic component;

[0012] The first conductive block is used to connect to the connection component, and the second conductive block is used to connect to the test module;

[0013] The first elastic component is used to provide an elastic force acting on the first conductive block so that the first conductive block can be maintained at or reset to a position in contact with the second conductive block;

[0014] The second elastic component is used to provide an elastic force acting on the second conductive block, so that the second conductive block can be maintained at or reset to a position in contact with the first conductive block;

[0015] The first driving member responds to the control command of the control device to drive the first insulating block to move, and disconnects the test module from the gas relay when the first insulating block extends between the first conductive block and the second conductive block, or connects the test module to the gas relay when the first insulating block retracts and the first conductive block contacts the second conductive block.

[0016] Furthermore, at least one of the first elastic component or the second elastic component includes a bracket, a second insulating block, a guide rod, and an elastic member. The bracket is provided with a first guide rail, the guide rod is disposed on the bracket, the second insulating block is slidably disposed on the first guide rail and connected to the guide rod, and the elastic member is sleeved on the guide rod and its two ends abut against the bracket and the second insulating block respectively, so that the second insulating block can be used to bring the first conductive block and the second conductive block relatively close.

[0017] Furthermore, the connecting assembly includes a first handle, a second handle, a first mounting assembly, a third spring-loaded assembly, and a locking assembly;

[0018] The first handle and the second handle are respectively provided with a contact block for connecting to the gas relay terminal;

[0019] The first handle and the second handle are hinged together by the first mounting assembly and can be opened and closed relative to each other, so as to drive each of the grounding blocks to move away from or towards each other.

[0020] The third elastic component is used to provide an elastic force acting on the first handle and the second handle so that the first handle and the second handle can be maintained in or returned to the open position;

[0021] The locking component is used to fix the relative positions of the first handle and the second handle.

[0022] Furthermore, the locking assembly includes a locking lever, a locking seat, a second rotating shaft, a second mounting base, and a fourth elastic component. The second mounting base is disposed on the first handle, the second rotating shaft is disposed on the second mounting base, the locking seat is disposed on the second handle, one end of the locking lever is detachably disposed on the locking seat, and the other end of the locking lever is disposed on the second rotating shaft. The fourth elastic component is used to provide an elastic force acting on the second rotating shaft so that one end of the locking lever can be maintained at or reset to the position of being engaged with the locking seat to fix the relative positions of the first handle and the second handle.

[0023] Furthermore, the connecting assembly includes a third rotating shaft and a fifth elastic component. The third rotating shaft is disposed on the locking assembly, and the fifth elastic component is used to provide an elastic force acting on the third rotating shaft. The elastic force provided by the fifth elastic component is perpendicular to the elastic force provided by the fourth elastic component, so as to limit the lever to a preset position in the horizontal and vertical directions.

[0024] Furthermore, the gas relay calibration device also includes a main structure and a moving structure. The test module, the connection control structure, and the moving structure are respectively disposed on the main structure, and the main structure can move based on the moving structure.

[0025] Furthermore, the moving structure includes a pulley, a second driving member, a second guide rail, a slider, a fixing member, and a transmission member. The pulley is disposed on the main body structure, the second guide rail is disposed on the main body structure, the slider is slidably disposed on the second guide rail, and the fixing member is disposed on the slider. The second driving member drives the slider to slide through the transmission member, so that the fixing member can lock or unlock the pulley.

[0026] As can be seen from the above technical solutions, the embodiments of this application have at least the following beneficial effects: the gas relay to be calibrated is connected to each test module through the connection control structure, and the connection status of each connection control structure can be controlled according to the corresponding test item control device to connect the corresponding test circuit. By automatically switching the test wiring, the gas relay calibration work can be effectively prevented from having incorrect wiring, accidental electric shock, or incorrect test items, thereby improving the quality, efficiency and human-machine efficiency of the gas relay calibration work.

[0027] The second aspect of this application provides a method for verifying a gas relay. The gas relay verification device includes multiple test modules, multiple connection control structures, and a control device. Each test module is used to test the gas relay. One end of each connection control structure is used to connect to the gas relay, and the other end of each connection control structure is respectively set to correspond to each test module. The connection control structure is used to connect or disconnect the corresponding test module from the gas relay.

[0028] The verification method includes the following steps:

[0029] Determine the corresponding control command based on the test item of the gas relay;

[0030] Each of the connection control structures is configured to respond to the control command to connect at least one of the test modules to the gas relay, while disconnecting the remaining test modules from the gas relay;

[0031] The gas relay was tested using the connected test module;

[0032] Repeat the above steps until the gas relay calibration is complete.

[0033] It is easy to understand that the gas relay verification method in the second aspect embodiment of this application has the same technical effects as the gas relay verification device in the first aspect embodiment, and therefore will not be described again.

[0034] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of a gas relay testing device provided in one embodiment of this application;

[0037] Figure 2 A schematic diagram of a gas relay testing device provided in one embodiment of this application, shown along a first direction;

[0038] Figure 3 A schematic diagram of a gas relay testing device provided in one embodiment of this application, shown along a second direction;

[0039] Figure 4 This is a schematic diagram of a movable structure provided in one embodiment of this application;

[0040] Figure 5 This is a schematic diagram of a connection control structure provided in one embodiment of this application;

[0041] Figure 6 This is an internal schematic diagram of a connection control structure provided in one embodiment of this application;

[0042] Figure 7 A schematic diagram of a control component provided in one embodiment of this application;

[0043] Figure 8 A schematic diagram showing a connection component provided in one embodiment of this application along a third direction;

[0044] Figure 9 A schematic diagram showing a connection component provided in one embodiment of this application along a fourth direction;

[0045] Figure 10 A schematic diagram of a locking component provided in one embodiment of this application;

[0046] The first direction can be understood as the direction directly downward at a certain angle, the second direction can be understood as the direction directly upward at a certain angle, the third direction can be understood as the direction facing forward at a certain angle, and the fourth direction can be understood as the direction to the side at a certain angle.

[0047] Figure label:

[0048] 100. Test module; 101. Insulation resistance test module; 102. Power frequency withstand voltage test module; 103. Reed contact continuity test module;

[0049] 200. Control device;

[0050] 300. Connection control structure; 310. Control component; 311. First driving element; 312. First insulating block; 313. First conductive block; 314. Second conductive block; 315. First elastic component; 316. Second elastic component; 3161. Bracket; 3162. Second insulating block; 3163. Guide rod; 3164. Elastic component; 3165. First guide rail; 320. Connection component; 321. First handle; 322. Second handle; 3221. Connector block; 323. First mounting assembly; 3231. First rotating shaft; 3232. First mounting base; 324. Third spring-loaded assembly; 325. Locking assembly; 3251. Locking lever; 3252. Locking seat; 3253. Second rotating shaft; 3254. Second mounting base; 3255. Fourth spring-loaded assembly; 326. Third rotating shaft; 327. Fifth spring-loaded assembly; 330. First wire; 340. Second wire; 350. Signal light;

[0051] 400. Main structure; 410. Body; 420. Display panel; 430. Opening door; 440. Grounding wire assembly; 441. Grounding wire body; 442. Third drive component; 443. Conductor; 444. Travel plate;

[0052] 500, Moving structure; 510, Pulley; 520, Second driving component; 530, Second guide rail; 540, Slider; 550, Fixing component; 560, Transmission component. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0054] In some embodiments, the common number of reed contacts in a gas relay is 3-4 sets. Taking the verification of a gas relay with 4 sets of reed contacts as an example: its insulation resistance test involves 4 switching test wirings and 4 operation of the test instrument; the withstand voltage test involves 10 switching test wirings and 10 operation of the test instrument; and the reed contact continuity test involves 8 switching test wirings and 8 operation of the test instrument.

[0055] The aforementioned frequent manual switching of test wiring and operation of test instruments can easily lead to problems such as incorrect wiring, accidental electric shock, and incorrect or omitted test items by test personnel. To address this, this application proposes a gas relay calibration device, specifically a gas relay reed contact calibration wiring switching device, to solve the problems described above.

[0056] See Figures 1 to 10 As shown, an embodiment of the first aspect of this application discloses a gas relay testing device, including multiple test modules 100, multiple connection control structures 300, and a control device 200;

[0057] Each test module 100 is used to test the gas relay; one end of each connection control structure 300 is used to connect to the gas relay, and the other end of each connection control structure 300 is respectively set to each test module 100. The connection control structure 300 is used to connect or disconnect the corresponding test module 100 from the gas relay; the control device 200 is configured to control each connection control structure 300 so that when at least one test module 100 is connected to the gas relay for testing, the other test modules 100 are disconnected from the gas relay.

[0058] In the embodiments of this application, the gas relay to be calibrated is connected to each test module 100 through the connection control structure 300. According to the corresponding test item, the control device 200 can control the connection status of each connection control structure 300 to connect the corresponding test circuit. By automatically switching the test wiring, it can effectively prevent incorrect wiring, accidental electric shock, and incorrect test items in the gas relay calibration work, thereby improving the quality, efficiency and human-machine efficiency of the gas relay calibration work.

[0059] Understandably, each test module 100 integrates corresponding functions for testing, so that after connecting the gas relay and the corresponding test module 100 through the connection control structure 300, the verification work can be carried out after the corresponding test circuit is turned on, thereby solving the problem caused by frequent switching of test wiring in related technologies as much as possible.

[0060] In some embodiments, the two ends of the connection control structure 300 are respectively used to connect the gas relay and the corresponding test module 100. Each connection control structure 300 can control the connection or disconnection of the circuit through its own mechanical mechanism. In conjunction with the setting of the control device 200, the state switching of each connection control structure 300 can be controlled, thereby reducing errors, ensuring operational safety, and improving verification efficiency.

[0061] For example, the multiple test modules 100 may be configured to include, but are not limited to, an insulation resistance test module 101, a power frequency withstand voltage test module 102, and a reed contact continuity test module 103, so as to carry out insulation resistance inspection, withstand voltage test and reed contact continuity test respectively.

[0062] In one specific embodiment, the insulation resistance test module 101 integrates a 500V / 1000VDC megohmmeter to output a stable DC high voltage and measure the insulation resistance value, typically ranging from 0.1MΩ to 1000GΩ or higher. The power frequency withstand voltage test module 102 integrates a 0-5kVAC adjustable AC high voltage source with overcurrent protection and allows setting the test voltage and test time. The reed contact continuity test module 103 integrates a low-voltage, low-current DC5-24V continuity test circuit to detect the normally open and normally closed states of the contacts. During use, it controls the start, stop, and switching of each module, sets test parameters such as voltage, time, and resistance threshold, collects measurement data such as insulation resistance, leakage current, and contact status, and executes safety interlock logic, high voltage isolation, and switching through a human-machine interface.

[0063] The following will combine Figures 1 to 10 The gas relay testing device disclosed in the embodiments of this application will be explained and described in detail.

[0064] In some embodiments of this application, reference is made to Figures 5 to 10 The connection control structure 300 includes a control component 310 and a connection component 320. The connection component 320 is used to connect to the gas relay. One end of the control component 310 is connected to the connection component 320, and the other end of the control component 310 is connected to the test module 100. The control component 310 is used to connect or disconnect the test module 100 from the gas relay. It is understood that this design uses a mechanical structure to replace traditional screw fixing, shortening the wiring time per connection. The connection component 320 facilitates connection to the gas relay, improving wiring efficiency. The control component 310 controls the connection between the test module 100 and the gas relay, thus enabling the gas relay calibration device disclosed in this application to simultaneously achieve both safety and ease of use.

[0065] Exemplarily, in some embodiments, reference is made to Figure 6 and Figure 7The control component 310 includes a first driving member 311, a first insulating block 312, a first conductive block 313, a second conductive block 314, a first elastic component 315, and a second elastic component 316. The first conductive block 313 is used to connect to the connection component 320, and the second conductive block 314 is used to connect to the test module 100. The first elastic component 315 is used to provide an elastic force acting on the first conductive block 313, so that the first conductive block 313 can be maintained at or reset to the position in contact with the second conductive block 314. The second elastic component 316 is used to provide an elastic force acting on the first conductive block 313. The elastic force of the second conductive block 314 enables the second conductive block 314 to be maintained or reset to a position in contact with the first conductive block 313; the first driving member 311 responds to the control command of the control device 200 to drive the first insulating block 312 to move, and disconnects the test module 100 from the gas relay when the first insulating block 312 extends between the first conductive block 313 and the second conductive block 314, or connects the test module 100 to the gas relay when the first insulating block 312 retracts and the first conductive block 313 contacts the second conductive block 314.

[0066] It is understandable that since the insulation resistance test module 101, the power frequency withstand voltage test module 102, and the reed contact continuity test module 103 are connected to the terminals through the contact of the first conductive block 313 and the second conductive block 314, during testing, it is necessary to control the first conductive block 313 and the second conductive block 314 in the unused control component 310 to disconnect the power connection. To this end, the first insulating block 312 is driven to descend by controlling the corresponding first driving component 311. The first insulating block 312 squeezes the first conductive block 313 and the second conductive block 314. The first conductive block 313 and the second conductive block 314 overcome the forces of the first elastic component 315 and the second elastic component 316 respectively, so that the first conductive block 313 and the second conductive block 314 move away from each other, thereby achieving the effect of disconnecting the unused power line. In the power connection circuit that needs to be used, the first driving member 311 drives the first insulating block 312 to rise, and the first conductive block 313 and the second conductive block 314 move towards each other and fit together based on the force of the first elastic component 315 and the second elastic component 316, thereby realizing the connection of the power connection circuit.

[0067] In some embodiments, reference is made to Figure 6 and Figure 7 The control component 310 includes a first wire 330 and a second wire 340. A first conductive block 313 is connected to a connection component 320 via the first wire 330, and a second conductive block 314 is connected to a test module 100 via the second wire 340. The wire configuration facilitates the circuit connection between the control component 310, the connection component 320, the test module 100, and the gas relay.

[0068] In some embodiments, reference is made to Figure 6 and Figure 7 The control component 310 includes a signal light 350, which is configured to illuminate when the first conductive block 313 and the second conductive block 314 are connected or disconnected, so as to intuitively understand the power output status.

[0069] Furthermore, in some embodiments, reference is made to... Figure 7 At least one of the first elastic component 315 or the second elastic component 316 includes a bracket 3161, a second insulating block 3162, a guide rod 3163, and an elastic member 3164. The bracket 3161 is provided with a first guide rail 3165, the guide rod 3163 is disposed on the bracket 3161, the second insulating block 3162 is slidably disposed on the first guide rail 3165 and connected to the guide rod 3163, and the elastic member 3164 is sleeved on the guide rod 3163 and its two ends abut against the bracket 3161 and the second insulating block 3162 respectively, so that the second insulating block 3162 can be used to bring the first conductive block 313 and the second conductive block 314 closer together. It is understandable that the bracket 3161 provides the setting base, the second insulating block 3162 acts on the conductive block, the elastic member 3164 provides elastic force, and with the guidance of the guide rod 3163 and the first guide rail 3165, the first conductive block 313 and the second conductive block 314 can be reset to or maintained in a relatively close and fitted position.

[0070] In some embodiments, the first elastic component 315 and the second elastic component 316 have the same structure. In other embodiments, the first elastic component 315 and the second elastic component 316 can adaptively adjust their structure while performing the same functions as described above, which will not be further elaborated here.

[0071] Exemplarily, in some embodiments, the connection assembly 320 includes a first handle 321, a second handle 322, a first mounting assembly 323, a third elastic assembly 324, and a locking assembly 325; the first handle 321 and the second handle 322 are respectively provided with a contact block 3221 for connecting to the gas relay terminal; the first handle 321 and the second handle 322 are hinged together by the first mounting assembly 323 and can be opened and closed relative to each other, so as to drive the contact blocks 3221 to move away from or closer to each other; the third elastic assembly 324 is used to provide an elastic force acting on the first handle 321 and the second handle 322 so that the first handle 321 and the second handle 322 can be maintained in or reset to the open position; the locking assembly 325 is used to fix the relative position of the first handle 321 and the second handle 322.

[0072] It is understandable that the first mounting component 323 rotates and installs the first handle 321 and the second handle 322 at their intersection. The third elastic component 324 provides torsional elastic support for the first handle 321 and the second handle 322. With the locking component 325, wiring is convenient, and after successful wiring, the relative positions of the first handle 321 and the second handle 322 are locked to maintain the connection effect and prevent accidental interference with the verification.

[0073] In some embodiments, the contact block 3221 uses a gold-plated spring sheet, which has a low contact resistance to meet the requirements of high-precision testing. In actual testing, the contact resistance fluctuation of the contact block 3221 is less than 0.1mΩ, and the structure is stable.

[0074] In some embodiments, the first mounting component 323 includes a first rotating shaft 3231 and a first mounting base 3232. The first rotating shaft 3231 passes through the first handle 321 and the second handle 322 and is disposed on the first mounting base 3232. The third elastic component 324 is a torsion spring and is sleeved on the first rotating shaft 3231.

[0075] Furthermore, in some embodiments, the locking component 325 includes a latch 3251, a latch seat 3252, a second rotating shaft 3253, a second mounting base 3254, and a fourth elastic component 3255. The second mounting base 3254 is disposed on the first handle 321, the second rotating shaft 3253 is disposed on the second mounting base 3254, the latch seat 3252 is disposed on the second handle 322, one end of the latch 3251 is detachably disposed on the latch seat 3252, and the other end of the latch 3251 is disposed on the second rotating shaft 3253. The fourth elastic component 3255 is used to provide an elastic force acting on the second rotating shaft 3253 so that one end of the latch 3251 can be maintained at or reset to the position of being engaged with the latch seat 3252 to fix the relative position of the first handle 321 and the second handle 322. Understandably, the lever 3251 can move based on the second pivot 3253 and the second mounting base 3254, thereby being able to engage with the mounting base 3252 to lock the first handle 321 and the second handle 322, or disengage from the mounting base 3252 to unlock the first handle 321 and the second handle 322. The fourth elastic component 3255 is used to provide the elastic force to maintain the lever 3251 engaging with the mounting base 3252, thereby ensuring the locking effect and improving the reliability of the connection.

[0076] In some other embodiments, a card holder 3252 is provided on the first handle 321, and a second mounting base 3254 is provided on the second handle 322. Referring to the description of the above embodiments, a similar effect can be achieved, and no further details will be provided here.

[0077] Furthermore, in some embodiments, the connecting assembly 320 includes a third rotating shaft 326 and a fifth elastic component 327. The third rotating shaft 326 is disposed on the locking assembly 325, and the fifth elastic component 327 provides an elastic force acting on the third rotating shaft 326. The elastic force provided by the fifth elastic component 327 is perpendicular to the direction of the elastic force provided by the fourth elastic component 3255, so as to limit the locking lever 3251 to a preset position in the horizontal and vertical directions. It can be understood that this structure adopts a dual locking design. The locking lever 3251 is connected to the first handle 321 through the second mounting base 3254. The fourth elastic component 3255 provides an elastic force for the end of the locking lever 3251 to insert into the locking seat 3252 of the second handle 322, forming a horizontal lock. At the same time, the cooperation between the third rotating shaft 326 and the fifth elastic component 327 provides a longitudinal rotational support, forming a longitudinal lock. The combination of the two ensures the reliable locking of the locking lever 3251.

[0078] In some embodiments of this application, the gas relay testing device further includes a main structure 400 and a moving structure 500. The test module 100, the connection control structure 300, and the moving structure 500 are respectively disposed on the main structure 400, and the main structure 400 can move based on the moving structure 500.

[0079] In some embodiments, the main structure 400 includes a body 410, a display panel 420, an opening and closing door 430, and a grounding wire assembly 440. The display panel 420 is disposed on the body 410, the body 410 has a storage cavity, the opening and closing door 430 is movably disposed on the body 410 and is used to open or close the storage cavity, and the grounding wire assembly 440 is disposed on the body 410 and is used for grounding.

[0080] Specifically, the grounding wire assembly 440 includes a grounding wire body 441, a third driving component 442, a conductor 443, and a travel plate 444. One end of the grounding wire body 441 is connected to the travel plate 444 via the conductor 443, and the other end of the grounding wire body 441 is used for grounding. The third driving component 442 drives the travel plate 444 so that the travel plate 444 can tighten the grounding wire body 441. It is understood that the other end of the grounding wire body 441 is provided with a tapered nail for insertion into the ground. The third driving component 442 is a hydraulic rod that drives the conductor 443 to move and fit against the outer wall of the gas relay for current protection. The hydraulic rod drive prevents operators from making active contact. Before testing, the grounding wire is inserted into the ground through the grounding cone. The hydraulic rod drives the travel plate 444 to move, and the travel plate 444 moves the conductor 443, stretching the grounding wire. The conductor 443 is then fitted and connected to the gas relay for grounding protection.

[0081] For example, in some embodiments, the movable structure 500 includes a pulley 510, a second drive member 520, a second guide rail 530, a slider 540, a fixing member 550, and a transmission member 560. The pulley 510 is disposed on the main body structure 400, the second guide rail 530 is disposed on the main body structure 400, the slider 540 is slidably disposed on the second guide rail 530, the fixing member 550 is disposed on the slider 540, and the second drive member 520 drives the slider 540 to slide through the transmission member 560 so that the fixing member 550 can lock or unlock the pulley 510.

[0082] Understandably, the body 410 slides on the ground via the bottom pulley 510. After moving to the designated position, the second drive member 520 drives the slider 540 to move via the transmission member 560. The slider 540 is slidably mounted on the second guide rail 530. Under the transmission of the transmission member 560, the guided slider 540 drives the fixed rod to move. When the fixed rod contacts the outer wall of the pulley 510, it presses against the pulley 510, and the pulley 510 is positioned.

[0083] In some embodiments, a bearing seat is provided at the lower end of the body 410, the transmission component 560 includes a screw, the second driving component 520 is a motor, the motor drives the screw to rotate, the rotation of the screw causes the slider 540 to slide, one end of the screw is rotatably installed inside the bearing seat, and the rotational stability is improved by the bearing seat when the screw rotates.

[0084] It should be understood that human-machine interaction is performed through the display panel 420, allowing selection of parameters such as test type, test polarity, and test group. By selecting these data, instructions are sent to the control module, generating control commands and controlling the on / off switching module to switch between on and off states. Based on the received current signal, the corresponding relay is activated. Depending on the different relay combination circuits, the test path between the test instrument and the test polarity or group is connected. The gas relay calibration device of this application embodiment can help test personnel conveniently and quickly complete the automatic switching of gas relay calibration test wiring, solving the problems of frequent manual switching of test wiring and operation of test instruments in existing gas relay calibration, which easily leads to incorrect wiring, accidental electric shock, and incorrect or omitted test items. It improves the quality, efficiency, and human-machine interaction of gas relay calibration work. This device is suitable for calibrating gas relays of various manufacturers and models, is simple to operate, highly practical, and safe. The test circuit is designed with a maximum of 4 groups of contacts, which can meet the testing needs of gas relays with 2 to 4 groups of reed contacts, and has great market promotion value.

[0085] The gas relay testing device of this application is described in detail below with a specific embodiment. It should be noted that the following embodiment is merely an exemplary description and should not be construed as limiting the embodiments of this application.

[0086] See Figures 1 to 10As shown, the gas relay calibration device of this embodiment includes a main structure 400, a control structure, a connection structure, and a moving structure 500.

[0087] The main structure 400 includes a body 410, an insulation resistance test module 101, a power frequency withstand voltage test module 102, and a reed contact continuity test module 103 located on the upper end of the body 410. A display panel 420 is provided at the front end of the body 410. The connection control structure 300 includes a control box that provides protection, a second wire 340 connected to the output ends of the insulation resistance test module 101, the power frequency withstand voltage test module 102, and the reed contact continuity test module 103, a first wire 330 corresponding to the second wire 340, a first conductive block 313 and a second conductive block 314 located at opposite ends of the first wire 330 and the second wire 340 and attached to each other, and a first conductive block 313 and a second conductive block 314 located inside the control box and respectively positioned The control box includes a support 3161 at the lower end of the first conductive block 313 and the second conductive block 314, a second insulating block 3162 located at the opposite end of the first conductive block 313 and the second conductive block 314, and a spring located between the second insulating block 3162 and the support 3161. A signal light 350 is provided on one side of the hydraulic rod inside the control box. A first guide rail 3165 is provided on the inner wall of the upper end of the support 3161. A slider 540 structure with its upper end connected to the lower end of the second insulating block 3162 is slidably installed on the outer wall of the first guide rail 3165. A sliding sleeve is embedded inside the support 3161. A guide rod 3163 is provided at one end of the second insulating block 3162 and slidably installed inside the sliding sleeve. The guide rod 3163 is located inside the spring.

[0088] Furthermore, the connection structure includes a first handle 321 and a second handle 322 located outside the first connecting wire, and a connecting block 3221 fixed to one side of the lower end of the first handle 321 and the second handle 322 and electrically connected to the first conductor 330; a first mounting base 3232 is sleeved on the outside of the intersection of the first handle 321 and the second handle 322, and a first rotating shaft 3231 rotatably mounted inside the first mounting base 3232 and rotatably mounted at the intersection of the first handle 321 and the second handle 322; two connecting blocks 3221 are sleeved on the outside of the first rotating shaft 3231. A torsion spring is connected to the first mounting base 3232, the first handle 321, and the second handle 322 respectively. A second mounting base 3254 is provided above the first handle 321. A second rotating shaft 3253 is rotatably mounted inside the second mounting base 3254. A locking rod 3251 is provided on the outer wall of the second rotating shaft 3253. A locking seat 3252 is provided at the upper end of the second handle 322, which is slidably inserted into one end of the locking rod 3251. A torsion spring with both ends connected to the second mounting base 3254 and the locking rod 3251 is sleeved on the outer side of the second rotating shaft 3253. A third rotating shaft 326 is rotatably mounted at the upper end of the first handle 321. A torsion spring with both ends connected to the second mounting base 3254 and the first handle 321 is sleeved on the outer side of the third rotating shaft 326.

[0089] Furthermore, the movable structure 500 includes pulleys 510 located at the four corners of the lower end of the body 410; a motor is provided on one side of the lower end of the body 410, and a screw is provided at the output end of the motor; a second guide rail 530 is provided at the lower end of the body 410, and a slider 540 is slidably installed on the outer wall of the second guide rail 530, with a threaded hole inside the slider 540 for threaded connection with the screw; a bearing seat is provided at the lower end of the body 410, with one end of the screw rotatably installed inside the bearing seat, and a fixing rod located on one side of the pulley 510 is provided at one end of the slider 540; a grounding wire is slidably installed inside the body 410, with a tapered nail at one end of the grounding wire; a hydraulic rod is provided at one end of the body 410, with a travel plate 444 at the telescopic end of the hydraulic rod, and a conductor 443 electrically connected to the grounding wire is provided at one end of the travel plate 444.

[0090] Understandably, in one specific embodiment, the main structure 400 uses a rectangular metal body 410 as its carrier. Its upper end integrates a 500V / 1000VDC megohmmeter insulation resistance test module 101, a 0-5kVAC adjustable high-voltage power frequency withstand voltage test module 102, and a DC5-24V low-voltage circuit reed contact continuity test module 103. The front display panel 420 uses a 7-inch color touchscreen to display test items, parameter thresholds, and high-voltage hazard warnings in real time. The control device 200 achieves multi-module collaborative operation through a control box. The second wire 340 is connected to the output terminals of the three test modules 100, and the first wire 330 passes through the first conductive block 3. 13. The second conductive block 314 is in contact with the second wire 340. The bracket 3161 is embedded in the first guide rail 3165. The second insulating block 3162 slides along the guide rail. The spring provides preload to ensure stable contact between the first conductive block 313 and the second conductive block 314. When the test mode needs to be switched, the hydraulic rod drives the first insulating block 312 to press down, compressing the spring to separate the first conductive block 313 and the second conductive block 314. The corresponding indicator light 350 is turned off to provide intuitive feedback on the circuit status. For example, when performing an insulation resistance test, the system automatically disconnects the first conductive block 313 and the second conductive block 314 of the power frequency withstand voltage module and prevents high voltage from entering the low voltage circuit through hardware interlock.

[0091] In one specific embodiment, during operation, the user holds the handle with one hand, overcoming the torsion spring force to clamp the relay terminal and complete the circuit connection. To prevent poor contact caused by test vibration, this structure adopts a double locking design. The locking rod 3251 is connected to the first handle 321 through the second mounting base 3254. The fourth elastic component 3255 drives the end of the locking rod 3251 to insert into the mounting base 3252 of the second handle 322, forming a lateral lock. At the same time, the cooperation of the third rotating shaft 326 and the fifth elastic component 327 provides longitudinal rotation support. For example, when it is necessary to disconnect, the user presses the tail of the locking rod 3251 to overcome the elastic force of the fourth elastic component 3255 and disengage it from the mounting base 3252. The fifth elastic component 327 then drives the first handle 321 to reset, and the contact block 3221 automatically separates.

[0092] In one specific embodiment, the movable structure 500 achieves flexible deployment and stable fixation of the equipment through pulleys 510 and positioning devices. The four sets of 360° rotating pulleys 510 are coated with polyurethane and have a load-bearing capacity of 500kg, allowing a single person to transfer the equipment. After reaching the test position, the motor drives the screw to rotate, which pushes the slider 540 to move along the second guide rail 530 through thread transmission. This causes the fixing rod to press against the side wall of the pulley 510, and the hydraulic rod pushes the stroke plate 444 downward, stretching the grounding wire so that the conductor 443 presses against the relay housing. At the same time, the cone nail can penetrate into the ground to a depth of up to 150mm. A waterproof sealing strip is set at the opening of the storage cavity, which works in conjunction with the automatic locking function of the opening and closing door 430. Specifically, the control box has a built-in grounding wire storage cavity. The hydraulic rod pushes the stroke plate 444 to drive the conductor 443 to be in close contact with the relay housing. At the same time, the cone nail is driven into the ground to form double grounding protection. During the test, the microprocessor monitors the leakage current in real time. If it exceeds the set threshold, the high voltage is immediately cut off and an audible and visual alarm is triggered. In addition, the opening and closing door 430 is controlled by an electromagnetic lock and can only be opened when the equipment is powered off to avoid the risk of misoperation.

[0093] The second aspect of this application discloses a gas relay verification method, which can be the method of using the gas relay verification device of the first aspect of this application.

[0094] The gas relay calibration device includes multiple test modules 100, multiple connection control structures 300, and a control device 200; each test module 100 is used to test the gas relay; one end of each connection control structure 300 is used to connect to the gas relay, and the other end of each connection control structure 300 is respectively set to each test module 100; the connection control structure 300 is used to connect or disconnect the corresponding test module 100 from the gas relay.

[0095] The verification method includes the following steps:

[0096] Determine the corresponding control command based on the test item of the gas relay;

[0097] Each connection control structure 300 is configured to respond to a control command to connect at least one test module 100 to the gas relay, while disconnecting the remaining test modules 100 from the gas relay.

[0098] The gas relay was tested using the connected test module 100;

[0099] Repeat the above steps until the gas relay calibration is complete.

[0100] Understandably, during calibration, test items can be selected on the display panel 420, and the test wiring can be automatically switched according to the selected test items to connect the corresponding test circuits. This effectively prevents incorrect wiring, accidental electric shock, and omissions in test items during gas relay calibration, thereby improving the quality, efficiency, and human-machine interface of gas relay calibration.

[0101] In a specific embodiment, the gas relay testing device is used as follows:

[0102] The insulation resistance test module 101 integrates a 500V / 1000VDC megohmmeter function, outputting a stable DC high voltage to measure insulation resistance values, typically ranging from 0.1MΩ to 1000GΩ or higher. The power frequency withstand voltage test module 102 integrates a 0-5kVAC adjustable AC high voltage source with overcurrent protection, and allows setting the test voltage and test time. The reed contact continuity test module 103 integrates a low-voltage, low-current DC 5-24V... The continuity test circuit with a current of less than 1mA can detect the normally open and normally closed states of contacts. The control panel includes a core control and measurement unit, a microprocessor or programmable logic controller, which controls the start, stop and switch of each module, sets test parameters such as voltage, time and resistance threshold, and collects measurement data such as insulation resistance, leakage current and contact status. It provides a human-machine interface to execute safety interlock logic, high voltage isolation and switching. It is worth noting that even if the equipment has safety protection, the operator still needs to be vigilant at all times and abide by all safety regulations, especially in the high voltage test. The integrated equipment needs to be calibrated regularly, especially the high voltage module and insulation resistance module, to ensure measurement accuracy. The equipment status and test lead insulation should be checked regularly. The operator should understand the equipment's safety interlock mechanism and not forcibly bypass safety restrictions.

[0103] The high-voltage output terminals for insulation and withstand voltage tests are connected to different test points between the gas relay terminals and ground via relays. This ensures that the relays have sufficient insulation strength and creepage distance to withstand a maximum test voltage of 5kVAC. When performing insulation or withstand voltage tests, it is essential to ensure that the low-voltage circuit of the reed contact test module 100 is physically disconnected and grounded to prevent high voltage from entering and damaging the low-voltage circuit or instruments. Conversely, the same applies. Interlocking should be ensured by both hardware, such as relay auxiliary contacts, and software. High-voltage measurements of voltage and leakage current, as well as insulation resistance measurements, require high-precision, high-isolation sampling circuits. The withstand voltage module must have overcurrent and flashover protection. The contact test circuit must have comprehensive overvoltage and overcurrent protection to prevent high voltage from being introduced during switching or misoperation. The control panel uses a color LCD touch screen or a button plus display screen to clearly display test items, parameter settings, real-time data, test results, timers, status indicators, and high-voltage danger warnings. It is worth noting that the wiring terminals are clearly marked with dedicated terminals.

[0104] The machine body 410 slides on the ground via the bottom pulley 510. Once the machine body 410 reaches the designated position, the motor drives the screw to rotate, which in turn moves the fixed rod. When the fixed rod contacts the outer wall of the pulley 510, it presses against the pulley 510, positioning it. Then, the first handle 321 and the second handle 322 are gripped. The electrical connector 3221 is clamped between the terminals and ground. The first wire 330 and the second wire 340 are electrically connected to the output terminals of the insulation resistance test module 101, the power frequency withstand voltage test module 102, and the reed contact continuity test module 103. The electrical connector 3221 is clamped between the terminals and ground. At the terminal, one end of the locking rod 3251, which is rotatably mounted via the second rotating shaft 3253 and supported by the torsion spring, is inserted into the inside of the locking seat 3252, thereby locking the rotatably mounted first handle 321 and second handle 322 together to prevent the connection end from loosening. The locking rod 3251 is also rotatably supported via the third rotating shaft 326, which, together with the second rotating shaft 3253, forms longitudinal and transverse rotatable supports respectively. The third rotating shaft 326 is rotatably supported via the torsion spring. Under the action of the torsion spring's rotational force, after the locking rod 3251 is pried off the locking seat 3252, the locking rod 3251 automatically springs open via the third rotating shaft 326, releasing the locking of the first handle 321 and second handle 322.

[0105] It is worth noting that before testing, the grounding wire is inserted into the ground through the ground cone, and the hydraulic rod drives the travel plate 444 to move. The travel plate 444 drives the conductor 443 to move and stretches the grounding wire. The conductor 443 is in close contact with the gas relay for grounding protection. Because the insulation resistance test module 101, the power frequency withstand voltage test module 102, and the reed contact continuity test module 103 are connected to the terminal through the grounding block 3221, during testing, the unused grounding block 3221 is controlled to disconnect the power connection. This controls the corresponding first insulating block 312 to descend. The first insulating block 312 squeezes the first conductive block 313 and the second conductive block 314, causing the first conductive block 313 and the second conductive block 314 to move away from each other. The unused grounding line is disconnected, and the corresponding power connection indicator light 350 lights up, allowing a direct understanding of the power output.

[0106] It is easy to understand that the gas relay verification method in the second aspect embodiment of this application has the same technical effects as the gas relay verification device in the first aspect embodiment, and therefore will not be described again.

[0107] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0108] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more. It should be noted that the term "and / or" used herein is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Similarly, at least one of A or B can also represent: A alone, A and B simultaneously, or B alone.

[0109] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0110] In the foregoing description of this specification, references to terms such as "one embodiment," "another embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A gas relay calibration device, characterized in that, include: Multiple test modules, multiple connection control structures and control devices; Each of the aforementioned test modules is used to test the gas relay; One end of each of the connection control structures is used to connect to the gas relay, and the other end of each of the connection control structures is respectively set to correspond to each of the test modules. The connection control structure is used to connect or disconnect the corresponding test module from the gas relay. The control device is configured to control each of the connection control structures such that when at least one of the test modules is connected to the gas relay for testing, the other test modules are disconnected from the gas relay.

2. The gas relay calibration device according to claim 1, characterized in that: The connection control structure includes a control component and a connection component. The connection component is used to connect to the gas relay. One end of the control component is connected to the connection component, and the other end of the control component is connected to the test module. The control component is used to connect or disconnect the test module from the gas relay.

3. The gas relay calibration device according to claim 2, characterized in that: The control component includes a first driving element, a first insulating block, a first conductive block, a second conductive block, a first elastic component, and a second elastic component; The first conductive block is used to connect to the connection component, and the second conductive block is used to connect to the test module; The first elastic component is used to provide an elastic force acting on the first conductive block so that the first conductive block can be maintained at or reset to a position in contact with the second conductive block; The second elastic component is used to provide an elastic force acting on the second conductive block, so that the second conductive block can be maintained at or reset to a position in contact with the first conductive block; The first driving member responds to the control command of the control device to drive the first insulating block to move, and disconnects the test module from the gas relay when the first insulating block extends between the first conductive block and the second conductive block, or connects the test module to the gas relay when the first insulating block retracts and the first conductive block contacts the second conductive block.

4. The gas relay calibration device according to claim 3, characterized in that: At least one of the first elastic component or the second elastic component includes a bracket, a second insulating block, a guide rod, and an elastic member. The bracket is provided with a first guide rail, the guide rod is disposed on the bracket, the second insulating block is slidably disposed on the first guide rail and connected to the guide rod, and the elastic member is sleeved on the guide rod and its two ends abut against the bracket and the second insulating block respectively, so that the second insulating block can be used to bring the first conductive block and the second conductive block relatively close.

5. The gas relay calibration device according to claim 2, characterized in that: The connecting assembly includes a first handle, a second handle, a first mounting assembly, a third spring assembly, and a locking assembly; The first handle and the second handle are respectively provided with a contact block for connecting to the gas relay terminal; The first handle and the second handle are hinged together by the first mounting assembly and can be opened and closed relative to each other, so as to drive each of the grounding blocks to move away from or towards each other. The third elastic component is used to provide an elastic force acting on the first handle and the second handle so that the first handle and the second handle can be maintained in or returned to the open position; The locking component is used to fix the relative positions of the first handle and the second handle.

6. The gas relay calibration device according to claim 5, characterized in that: The locking assembly includes a locking lever, a locking seat, a second rotating shaft, a second mounting base, and a fourth elastic component. The second mounting base is disposed on the first handle, the second rotating shaft is disposed on the second mounting base, the locking seat is disposed on the second handle, one end of the locking lever is detachably disposed on the locking seat, and the other end of the locking lever is disposed on the second rotating shaft. The fourth elastic component is used to provide an elastic force acting on the second rotating shaft so that one end of the locking lever can be maintained at or reset to the position of being locked into the locking seat to fix the relative positions of the first handle and the second handle.

7. The gas relay calibration device according to claim 6, characterized in that: The connecting assembly includes a third rotating shaft and a fifth elastic component. The third rotating shaft is disposed on the locking assembly. The fifth elastic component is used to provide an elastic force acting on the third rotating shaft. The elastic force provided by the fifth elastic component is perpendicular to the elastic force provided by the fourth elastic component, so as to limit the lever to a preset position in the horizontal and vertical directions.

8. The gas relay calibration device according to claim 1, characterized in that: The gas relay calibration device further includes a main structure and a moving structure. The test module, the connection control structure, and the moving structure are respectively disposed on the main structure, and the main structure can move based on the moving structure.

9. The gas relay calibration device according to claim 8, characterized in that: The movable structure includes a pulley, a second driving member, a second guide rail, a slider, a fixing member, and a transmission member. The pulley is disposed on the main structure, the second guide rail is disposed on the main structure, the slider is slidably disposed on the second guide rail, and the fixing member is disposed on the slider. The second driving member drives the slider to slide through the transmission member, so that the fixing member can lock or unlock the pulley.

10. A method for calibrating a gas relay, characterized in that, The gas relay calibration device includes multiple test modules, multiple connection control structures, and a control device; each test module is used to test the gas relay; one end of each connection control structure is used to connect to the gas relay, and the other end of each connection control structure is respectively set to correspond to each test module; the connection control structure is used to connect or disconnect the corresponding test module from the gas relay. The verification method includes the following steps: Determine the corresponding control command based on the test item of the gas relay; Each of the connection control structures is configured to respond to the control command to connect at least one of the test modules to the gas relay, while disconnecting the remaining test modules from the gas relay; The gas relay was tested using the connected test module; Repeat the above steps until the gas relay calibration is complete.

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