Variable frequency resonance test device

Abstract

The invention relates to the technical field of electrical equipment testing, in particular to a frequency conversion resonance testing device which comprises a shell, a testing mechanism is installed in the shell and comprises a first access port, the first access port is fixedly installed on the right side of an inner cavity of the shell, and a first connecting wire is fixedly installed on the left side of the first access port. The standby access port is fixedly installed on the right side of an inner cavity of the shell, a standby connecting line is fixedly installed on the side portion of the standby access port, the first access port is fixedly installed on the left side of the inner cavity of the shell, and a second connecting line is fixedly installed on the right side of the first access port. According to the invention, through the arrangement of the test mechanism, connection can be disconnected in time when a problem occurs at a joint during a frequency conversion resonance test, and the timely disconnection can prevent a tester from contacting dangerous voltages, thereby avoiding an electric shock accident, preventing safety accidents such as an electrical fire caused by electric leakage, and further guaranteeing the life safety of the tester.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment testing, in particular to a variable frequency resonance testing device. Background Art

[0002] The variable frequency resonance test uses a variable frequency power supply to convert a fixed frequency power supply into an adjustable frequency power supply. By adjusting the frequency, the inductance and capacitance in the test circuit resonate, thereby generating a high voltage on the device under test. The basic principle is based on the resonance condition, that is, the reactance of the inductance and capacitance cancel each other out at a specific frequency. At this time, the current in the test circuit reaches its maximum value, and the voltage on the device under test also increases accordingly.

[0003] However, during the test process, if there are problems with the connection, such as poor contact or looseness, it may lead to poor grounding or leakage. If the test continues in this case, the risk of electric shock to the test personnel when they touch the equipment will be greatly increased, especially in high-voltage tests. Once an electric shock accident occurs, the consequences will be disastrous. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a variable frequency resonance test device that overcomes the above technical problems or at least partially solves the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides a variable frequency resonance test device, comprising a housing, wherein a test mechanism is installed inside the housing, and the test mechanism comprises:

[0007] A first access port, the first access port is fixedly installed on the right side of the inner cavity of the shell, and a first connecting line is fixedly installed on the left side of the first access port;

[0008] A spare access port, the spare access port is fixedly mounted on the right side of the inner cavity of the shell, and a spare connecting line is fixedly mounted on the side of the spare access port;

[0009] A first connection port, the first connection port is fixedly installed on the left side of the inner cavity of the shell, and a second connecting line is fixedly installed on the right side of the first connection port;

[0010] A mounting plate is fixedly mounted on the bottom of the inner cavity of the shell, and a conversion mechanism is mounted on the top of the mounting plate.

[0011] In one embodiment of the present invention, a first placement box is fixedly installed on the surface of the first connecting line, a partition plate is fixedly installed inside the first placement box, a sodium bicarbonate box is separated at the bottom of the first placement box, a second placement box is fixedly installed on the surface of the spare access port, the interior of the second placement box is configured in the same manner as the first placement box, a piston cylinder is fixedly installed on the left side of the first placement box, and a piston plate is slidably installed inside the piston cylinder.

[0012] In one embodiment of the present invention, a first gear is rotatably installed on the side of the mounting plate, a connecting rod is fixedly installed on the left side of the piston plate, a first threaded rod is fixedly installed on the left side of the connecting rod, the first threaded rod penetrates into the interior of the mounting plate and is threadedly connected to the first gear, a first sliding plate is fixedly installed on the end of the first threaded rod, a first sliding track is fixedly installed on the bottom of the mounting plate, the first sliding plate is slidably connected to the first sliding track, a support plate is fixedly installed on the bottom of the first sliding track, and a first spring is fixedly installed between the support plate and the first sliding plate.

[0013] In one embodiment of the present invention, a second sliding track is fixedly installed on the top of the mounting plate, and a plurality of second sliding tracks are provided. Second sliding plates are slidably installed on the surfaces of the plurality of second sliding tracks. A first tooth groove is provided at the bottom of the right second sliding plate, and the first tooth groove is meshed with the first gear. Second tooth grooves are provided on the sides of the two second sliding plates. A second gear is rotatably installed on the top of the mounting plate, and two second gears are provided, and both second gears are meshed with the second tooth groove.

[0014] In one embodiment of the present invention, the ends of the first connecting wire, the spare connecting wire and the second connecting wire are fixedly installed with terminal blocks, the surfaces of the plurality of terminal blocks are provided with first sliding grooves, a connecting plate is slidably installed inside the first sliding groove, the connecting plate is arranged between the left and right terminal blocks, a wiring port is fixedly installed on the top of the connecting plate, a second threaded rod is fixedly installed on the bottom of the connecting plate, a first threaded cylinder is fixedly installed on the top of the second gear, and the first threaded cylinder is threadedly connected to the second threaded rod.

[0015] In one embodiment of the present invention, the conversion mechanism includes a vertical plate, a second threaded cylinder is rotated inside the vertical plate, two second threaded cylinders are provided, the two second threaded cylinders are connected by a belt, a third threaded rod is fixedly installed on the front of the right second sliding plate, the third threaded rod is threadedly connected to the left second threaded cylinder, and a fourth threaded rod is fixedly installed on the rear of the front second sliding plate, the fourth threaded rod is threadedly connected to the right second threaded cylinder.

[0016] In one embodiment of the present invention, a fixing plate is fixedly installed on the top of the mounting plate, and two fixing plates are provided. A third gear is rotatably installed between the two fixing plates, a rotating shaft is rotatably installed on the top of the third gear, a mounting frame is fixedly installed on the top of the rotating shaft, a conversion line is fixedly installed on the surface of the mounting frame, and a first tooth plate is fixedly installed on the front of the second sliding plate on the left side, and the first tooth plate is meshed with the third gear.

[0017] In one embodiment of the present invention, a warning mechanism is installed on the left side of the spare access port, and the warning mechanism includes a first installation cavity, the first installation cavity is opened inside the installation plate, a connecting pipe is fixedly installed on the side of the first installation cavity, an airbag is installed inside the first installation cavity, the airbag is connected to the second placement box through the connecting pipe, and a sliding frame is slidably installed inside the first installation cavity, and the sliding frame is in contact with the airbag.

[0018] In one embodiment of the present invention, a second spring is fixedly installed on the left side of the sliding frame, and the second spring is arranged between the sliding frame and the inner wall of the first mounting cavity. A stinging needle is fixedly installed on the inner wall of the first mounting cavity, and a plurality of stinging needles are arranged. A through hole is opened on the surface of the sliding frame, and the through hole corresponds to the stinging needle. A fifth threaded rod is fixedly installed on the left side of the sliding frame, and the fifth threaded rod passes through the outside of the mounting plate and is slidably connected to the mounting plate.

[0019] In one embodiment of the present invention, a third threaded cylinder is rotatably installed on the left side of the mounting plate, the fifth threaded rod is threadedly connected to the third threaded cylinder, the end of the third threaded cylinder is fixedly installed with a first bevel gear, the bottom of the inner cavity of the shell is rotatably installed with a fourth gear, the top of the fourth gear is fixedly installed with a second bevel gear, the second bevel gear is meshed with the first bevel gear, the bottom of the inner cavity of the shell is rotatably installed with a fifth gear, two fifth gears are provided, the tops of the two fifth gears are fixedly installed with fan gears, the front fifth gear is meshed with the fourth gear, the bottom of the inner cavity of the shell is slidably installed with a second tooth plate, the fan gear is meshed with the second tooth plate, the top of the second tooth plate is fixedly installed with a connecting frame, the side of the connecting frame is fixedly installed with a striking rod, and the bottom of the inner cavity of the shell is fixedly installed with a vibration plate, and two vibration plates are provided.

[0020] The invention provides a variable frequency resonance test device, which has the following beneficial effects:

[0021] 1. Through the setting of the test organization, the connection can be disconnected in time when there is a problem in the connection during the variable frequency resonance experiment. Timely disconnection can prevent the test personnel from contacting these dangerous voltages, thereby avoiding electric shock accidents. It can also prevent safety accidents such as electrical fires caused by leakage, and further ensure the safety of personnel's lives.

[0022] 2. Through the setting of the conversion mechanism, it is possible to switch to the backup line in time when a problem occurs in the main line. When a problem occurs in the main line, if it cannot switch to the backup line in time, the test will be forced to be interrupted. The test interruption will not only waste part of the test time and resources that have been carried out, but may also have adverse effects on the equipment under test.

[0023] 3. Through the setting of the warning mechanism, the staff can be promptly alarmed when problems occur in both the main and backup lines. Line problems may cause leakage, short circuit, etc., causing the equipment casing or the surrounding environment to have dangerous voltages. Timely warnings can allow staff to quickly move away from dangerous areas and avoid electric shock accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of an internal top view structure provided for an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the internal structure provided for an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the internal right view structure provided for an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the test mechanism structure provided for an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the structure of a warning mechanism provided in an embodiment of the present invention;

[0031] Figure 7 The embodiments of the present invention provide Figure 4 A schematic diagram of the enlarged structure of the middle part A;

[0032] Figure 8 The embodiments of the present invention provide Figure 5 Schematic diagram of the enlarged structure of part B in the middle.

[0033] In the figure: 1, housing; 2, test mechanism; 201, first access port; 202, first connecting line; 203, spare access port; 204, spare connecting line; 205, first access port; 206, second connecting line; 207, mounting plate; 208, first storage box; 209, partition plate; 210, sodium bicarbonate box; 211, second storage box; 212, piston cylinder; 213, piston plate; 214, first gear; 215, connecting rod; 216, first threaded rod; 217, first sliding plate; 218, first sliding track; 219, support plate; 220, first spring; 221, second sliding track; 222, second sliding plate; 223, first tooth groove; 224, second tooth groove; 225, second gear; 226, terminal block; 227, first sliding groove; 228, connecting plate; 229, connecting Thread mouth; 230, second threaded rod; 231, first threaded barrel; 3, conversion mechanism; 301, vertical plate; 302, second threaded barrel; 303, third threaded rod; 304, fourth threaded rod; 305, fixed plate; 306, third gear; 307, rotating shaft; 308, mounting bracket; 309, conversion line; 310, first tooth plate; 4, warning mechanism; 401, first mounting cavity; 402, connecting pipe; 403, air bag; 404, sliding bracket; 405, second spring; 406, puncture needle; 407, through hole; 408, fifth threaded rod; 409, third threaded barrel; 410, first bevel gear; 411, fourth gear; 412, second bevel gear; 413, fifth gear; 414, fan gear; 415, second tooth plate; 416, connecting bracket; 417, striking rod; 418, vibration plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Reference Figure 1-Figure 8The technical solution provides a variable frequency resonance test device, which specifically includes a shell 1, a test mechanism 2 is installed inside the shell 1, the test mechanism 2 includes a first access port 201, the first access port 201 is fixedly installed on the right side of the inner cavity of the shell 1, a first connecting line 202 is fixedly installed on the left side of the first access port 201, and the main line of the entire device can be set by setting the first access port 201 and the first connecting line 202, a spare access port 203 is fixedly installed on the right side of the inner cavity of the shell 1, a spare connecting line 204 is fixedly installed on the side of the spare access port 203, and the selection of spare lines can be provided for the entire device through the setting of the spare access port 203 and the spare connecting line 204, a first access port 205 is fixedly installed on the left side of the inner cavity of the shell 1, a second connecting line 206 is fixedly installed on the right side of the first access port 205, a mounting plate 207 is fixedly installed on the bottom of the inner cavity of the shell 1, a conversion mechanism 3 is installed on the top of the mounting plate 207, and a surface of the first connecting line 202 is fixedly installed with A first placement box 208 is provided, wherein a partition plate 209 is fixedly installed inside the first placement box 208, a sodium bicarbonate box 210 is separated at the bottom of the first placement box 208, a second placement box 211 is fixedly installed on the surface of the standby access port 203, and the interior of the second placement box 211 is configured in the same manner as the first placement box 208, a piston cylinder 212 is fixedly installed on the left side of the first placement box 208, and a piston plate 213 is slidably installed inside the piston cylinder 212. When a problem occurs with the first connecting line 202 in the main circuit, the first connecting line 202 generates heat, and the sodium bicarbonate inside the sodium bicarbonate box 210 generates carbon dioxide when heated. The generation of carbon dioxide can not only serve as a driving force for the movement of the entire device, but can also extinguish possible power fires. Carbon dioxide can isolate the circuit from oxygen and avoid the generation of fires. When carbon dioxide is generated by heat, it can push the movement of the piston plate 213 inside the piston cylinder 212 to move the piston plate 213 toward the outside of the sodium bicarbonate box 210.

[0036] Reference Figure 1-Figure 8The present embodiment further proposes that a first gear 214 is rotatably mounted on the side of the mounting plate 207, a connecting rod 215 is fixedly mounted on the left side of the piston plate 213, a first threaded rod 216 is fixedly mounted on the left side of the connecting rod 215, the first threaded rod 216 penetrates into the interior of the mounting plate 207 and is threadedly connected to the first gear 214, when the piston plate 213 moves, the connecting rod 215 and the first threaded rod 216 can be driven to move together, and the movement of the first threaded rod 216 can drive the first gear 214 to rotate, a first sliding plate 217 is fixedly mounted on the end of the first threaded rod 216, a first sliding track 218 is fixedly mounted on the bottom of the mounting plate 207, and the first sliding plate 217 slides with the first sliding track 218 The first sliding track 218 is dynamically connected, and a support plate 219 is fixedly installed at the bottom of the first sliding track 218. A first spring 220 is fixedly installed between the support plate 219 and the first sliding plate 217. The movement of the first threaded rod 216 can drive the first sliding plate 217 to slide on the surface of the first sliding track 218, thereby compressing the first spring 220. Through the setting of the first spring 220, when the temperature of the first connecting line 202 drops, under the action of the first spring 220, the first threaded rod 216 can move toward the direction of the sodium bicarbonate box 210, so that the entire main line is restored to its original state. A second sliding track 221 is fixedly installed on the top of the mounting plate 207. The second sliding track 221 is provided with multiple, multiple second sliding tracks The second sliding plate 222 is slidably installed on the surface of the second sliding track 221, and a first tooth groove 223 is provided at the bottom of the right second sliding plate 222, and the first tooth groove 223 is meshed with the first gear 214. When the first gear 214 rotates, the first tooth groove 223 can be driven to slide on the surface of the second sliding track 221, and then the second sliding plate 222 can be driven to slide on the surface of the second sliding track 221. The side portions of the two second sliding plates 222 are provided with a second tooth groove 224, and the top of the mounting plate 207 is rotatably installed with a second gear 225, and two second gears 225 are provided, and the two second gears 225 are meshed with the second tooth groove 224. The first connecting line 202, the spare connecting line 204 and the second The ends of the connecting wires 206 are fixedly installed with terminal blocks 226, and the surfaces of the plurality of terminal blocks 226 are provided with first sliding grooves 227. A connecting plate 228 is slidably installed inside the first sliding grooves 227. The connecting plate 228 is arranged between the left and right terminal blocks 226. A wiring port 229 is fixedly installed on the top of the connecting plate 228. A second threaded rod 230 is fixedly installed on the bottom of the connecting plate 228. A first threaded cylinder 231 is fixedly installed on the top of the second gear 225. The first threaded cylinder 231 is threadedly connected to the second threaded rod 230. When the second tooth groove 224 moves with the second sliding plate 222, the second gear 225 can be driven to rotate, and the first threaded cylinder 231 can be driven to rotate.The rotation of the first threaded cylinder 231 can drive the second threaded rod 230 to move downward, and the downward movement of the second threaded rod 230 can make the connecting plate 228 move downward inside the first sliding groove 227, so that the wiring port 229 can be separated from the connecting plate 228, so that the first connecting line 202 and the second connecting line 206 are disconnected, and the main line can be disconnected to avoid electrical fire.

[0037] Reference Figure 1-Figure 8The present embodiment further proposes that the conversion mechanism 3 includes a vertical plate 301, and a second threaded cylinder 302 is rotated inside the vertical plate 301. Two second threaded cylinders 302 are provided, and the two second threaded cylinders 302 are connected by a belt. A third threaded rod 303 is fixedly installed at the front of the right second sliding plate 222, and the third threaded rod 303 is threadedly connected to the left second threaded cylinder 302. When the second sliding plate 222 at the rear right side slides, the third threaded rod 303 can be driven to move, and then the second threaded cylinder 302 can be driven to rotate. Through the setting of the belt, the two second threaded cylinders 302 can rotate synchronously, and the front second sliding plate 22 2 is fixedly installed with a fourth threaded rod 304, which is threadedly connected to the second threaded cylinder 302 on the right. Under the setting of the second threaded cylinder 302, the fourth threaded rod 304 can move, thereby driving the front second sliding plate 222 to move. Under the action of the second gear 225, the first threaded cylinder 231 on the standby line can rotate, thereby causing the second threaded rod 230 on the standby line to move upward, thereby causing the front wiring board 226 to move upward, so that the wiring port 229 at the top of the front wiring board 226 is connected to the wiring board 226 at the end of the standby connecting line 204, and the top of the mounting plate 207 is A fixing plate 305 is fixedly installed at the bottom, and two fixing plates 305 are provided. A third gear 306 is rotatably installed between the two fixing plates 305. A rotating shaft 307 is rotatably installed on the top of the third gear 306. A mounting frame 308 is fixedly installed on the top of the rotating shaft 307. A conversion line 309 is fixedly installed on the surface of the mounting frame 308. A first tooth plate 310 is fixedly installed at the front of the left second sliding plate 222. When the first tooth plate 310 is meshed with the third gear 306, when the rear connecting plate 228 moves downward, it will drive the second gear 225 at the second connecting line 206 to rotate, and then the left second sliding plate 22 2 slides, thereby driving the first tooth plate 310 to move, thereby driving the third gear 306 to rotate, and the rotation of the third gear 306 can drive the rotating shaft 307 to rotate, thereby rotating the conversion line 309. The conversion line 309 is provided with two groups of wires, one group is an insulating wire, and the other group is a conductive wire. When a problem occurs in the main line, the third gear 306 drives the conversion line 309 to rotate, so that the conductive wire is parallel to the fixed plate 305, so that the two fixed plates 305 are energized, and the route of the test current connected to the first inlet 205 is converted so that it can enter the wiring board 226 of the backup line, so that the backup circuit can be energized.

[0038] Reference Figure 1-Figure 8The present embodiment further proposes that a warning mechanism 4 is installed on the left side of the standby access port 203, and the warning mechanism 4 includes a first installation cavity 401, the first installation cavity 401 is opened inside the installation plate 207, a connecting pipe 402 is fixedly installed on the side of the first installation cavity 401, an airbag 403 is installed inside the first installation cavity 401, and the airbag 403 is connected to the second placement box 211 through the connecting pipe 402. When a problem occurs in the standby access port 203, the sodium bicarbonate box 210 inside the second placement box 211 is heated to generate carbon dioxide, and the carbon dioxide will inflate the airbag 403. A sliding frame 404 is slidably installed inside the first installation cavity 401, and the sliding frame 404 contacts the airbag 403. The inflation of the airbag 403 will push the sliding frame 404 to move the sliding frame 404. The frame 404 slides inside the first installation cavity 401, and a second spring 405 is fixedly installed on the left side of the sliding frame 404. The second spring 405 is arranged between the sliding frame 404 and the inner wall of the first installation cavity 401. A puncture needle 406 is fixedly installed on the inner wall of the first installation cavity 401. A plurality of puncture needles 406 are arranged. The puncture needle 406 can puncture the airbag 403 inflated to the limit, so that the carbon dioxide inside the airbag 403 is ejected, so that the carbon dioxide fills the entire device to avoid the occurrence of fire. A through hole 407 is opened on the surface of the sliding frame 404, and the through hole 407 corresponds to the puncture needle 406. A fifth threaded rod 408 is fixedly installed on the left side of the sliding frame 404. The fifth threaded rod 408 penetrates to the outside of the mounting plate 207 and is connected to the mounting plate 207. The mounting plate 207 is slidably connected, and a third threaded cylinder 409 is rotatably installed on the left side of the mounting plate 207. The fifth threaded rod 408 is threadedly connected to the third threaded cylinder 409. The sliding of the sliding frame 404 can drive the fifth threaded rod 408 to move, and the moving fifth threaded rod 408 can drive the third threaded cylinder 409 to rotate. A first bevel gear 410 is fixedly installed on the end of the third threaded cylinder 409, and the rotating third threaded cylinder 409 can drive the first bevel gear 410 to rotate. A fourth gear 411 is rotatably installed on the bottom of the inner cavity of the shell 1, and a second bevel gear 412 is fixedly installed on the top of the fourth gear 411. The second bevel gear 412 is meshed with the first bevel gear 410, and the rotating first bevel gear 410 can drive the second bevel gear 41 2 is rotated, the rotating second bevel gear 412 can drive the fourth gear 411 to rotate, a fifth gear 413 is rotatably installed at the bottom of the inner cavity of the shell 1, two fifth gears 413 are provided, the two fifth gears 413 are meshed, and fan gears 414 are fixedly installed on the tops of the two fifth gears 413, the front fifth gear 413 is meshed with the fourth gear 411, and the rotation of the fourth gear 411 can drive the front fifth gear 413 to rotate, so that the two fifth gears 413 can rotate in opposite directions, a second tooth plate 415 is slidably installed at the bottom of the inner cavity of the shell 1, the fan gear 414 is meshed with the second tooth plate 415, and the rotation of the two fifth gears 413 can make the fan gears 414 rotate in opposite directions,Then the second tooth plate 415 can slide back and forth. A connecting frame 416 is fixedly installed on the top of the second tooth plate 415, and a striking rod 417 is fixedly installed on the side of the connecting frame 416. A vibration plate 418 is fixedly installed on the bottom of the inner cavity of the shell 1. Two vibration plates 418 are provided. The back and forth sliding of the second tooth plate 415 can drive the connecting frame 416 to slide back and forth, and then drive the striking rod 417 to slide back and forth, so that the two vibration plates 418 emit a warning sound, reminding the staff to disconnect the power supply in time and terminate the test.

[0039] Specifically, the working process or working principle of the variable frequency resonance test device is as follows: when a problem occurs in the first connecting line 202 in the main line, the first connecting line 202 generates heat, and the sodium bicarbonate inside the sodium bicarbonate box 210 generates carbon dioxide when heated. The generation of carbon dioxide can not only serve as the power for the movement of the entire device, but also can extinguish possible power fires. Carbon dioxide can isolate the contact between the line and oxygen to avoid the occurrence of fire. When carbon dioxide is generated by heat, it can push the movement of the piston plate 213 inside the piston cylinder 212 to move the piston plate 213 toward the outside of the sodium bicarbonate box 210. When the piston plate 213 moves, it can drive the connecting rod 215 and the first threaded rod 216 to move together, and the movement of the first threaded rod 216 can drive the first gear 214 to rotate. The movement of the first threaded rod 216 can drive the first sliding plate 217 to slide on the surface of the first sliding track 218, and then the first spring 220 can be operated. When the temperature of the first connecting line 202 drops, under the action of the first spring 220, the first threaded rod 216 can move toward the direction of the sodium bicarbonate box 210, so that the entire main line returns to its original state. When the first gear 214 rotates, the first tooth groove 223 can be driven to slide on the surface of the second sliding track 221, and then the second sliding plate 222 can be driven to slide on the surface of the second sliding track 221. When the second tooth groove 224 moves with the second sliding plate 222, the second gear 225 can be driven to rotate, and then the first threaded cylinder 231 can be driven to rotate. The rotation of the first threaded cylinder 231 can drive the second threaded rod 230 to move downward, and the downward movement of the second threaded rod 230 can make the connecting plate 228 move downward in the first sliding groove 227, so that the wiring port 229 can be separated from the connecting plate 228, so that the first connecting line 202 is disconnected from the second connecting line 206.

[0040] When the second sliding plate 222 at the right rear part slides, the third threaded rod 303 can be driven to move, and then the second threaded cylinder 302 can be driven to rotate. Through the setting of the belt, the two second threaded cylinders 302 can rotate synchronously. Under the setting of the second threaded cylinder 302, the fourth threaded rod 304 can move, and then the front second sliding plate 222 can be driven to move. Under the action of the second gear 225, the first threaded cylinder 231 on the standby line can be rotated, and then the second threaded rod 230 on the standby line can move upward, so that the front wiring board 226 moves upward, so that the wiring port 221 on the top of the front wiring board 226 is opened. 9 is connected to the wiring board 226 on the end of the standby connecting line 204. When the rear connecting plate 228 moves downward, it will drive the second gear 225 at the second connecting line 206 to rotate, and then drive the second sliding plate 222 on the left to slide, and then drive the first toothed plate 310 to move, thereby driving the third gear 306 to rotate. The rotation of the third gear 306 can drive the rotating shaft 307 to rotate, thereby rotating the conversion line 309, energizing the two fixed plates 305, converting the route of the test current connected to the first inlet 205, so that it can enter the wiring board 226 of the standby line, so that the standby circuit can be energized.

[0041] When a problem occurs in the backup access port 203, the sodium bicarbonate box 210 inside the second placement box 211 is heated to produce carbon dioxide, which will inflate the airbag 403. The inflation of the airbag 403 will push the sliding frame 404 to slide inside the first installation cavity 401, and the puncture needle 406 can puncture the airbag 403 that has been inflated to the limit, so that the carbon dioxide inside the airbag 403 can be sprayed out, so that the carbon dioxide fills the entire device to avoid fire. The sliding of the sliding frame 404 can drive the fifth threaded rod 408 to move, and the moving fifth threaded rod 408 can drive the third threaded cylinder 409 to rotate. The end of the third threaded cylinder 409 is fixedly installed with a first bevel gear 410, and the rotating third threaded cylinder 409 can drive The first bevel gear 410 rotates, and the rotating first bevel gear 410 can drive the second bevel gear 412 to rotate, and the rotating second bevel gear 412 can drive the fourth gear 411 to rotate, and the rotation of the fourth gear 411 can drive the front fifth gear 413 to rotate, so that the two fifth gears 413 can rotate in opposite directions, and the rotation of the two fifth gears 413 can make the fan gear 414 rotate in opposite directions, so that the second tooth plate 415 can slide back and forth, and the back and forth sliding of the second tooth plate 415 can drive the connecting frame 416 to slide back and forth, and then drive the striking rod 417 to slide back and forth, so that the two vibration plates 418 send out a warning sound to remind the staff to disconnect the power supply in time and terminate the test.

Claims

1. A variable frequency resonance test device, comprising a housing (1), It is characterized in that A test mechanism (2) is installed inside the housing (1), and the test mechanism (2) comprises: A first access port (201), the first access port (201) being fixedly mounted on the right side of the inner cavity of the housing (1), and a first connecting line (202) being fixedly mounted on the left side of the first access port (201); A spare access port (203), the spare access port (203) being fixedly mounted on the right side of the inner cavity of the housing (1), and a spare connecting line (204) being fixedly mounted on the side of the spare access port (203); A first connection port (205), the first connection port (205) being fixedly mounted on the left side of the inner cavity of the housing (1), and a second connecting line (206) being fixedly mounted on the right side of the first connection port (205); A mounting plate (207) is fixedly mounted on the bottom of the inner cavity of the housing (1), and a conversion mechanism (3) is mounted on the top of the mounting plate (207).

2. A variable frequency resonance test device according to claim 1, It is characterized in that A first storage box (208) is fixedly installed on the surface of the first connecting line (202), a partition plate (209) is fixedly installed inside the first storage box (208), a sodium bicarbonate box (210) is separated at the bottom of the first storage box (208), a second storage box (211) is fixedly installed on the surface of the backup access port (203), the interior of the second storage box (211) is configured in the same manner as the first storage box (208), a piston cylinder (212) is fixedly installed on the left side of the first storage box (208), and a piston plate (213) is slidably installed inside the piston cylinder (212).

3. A variable frequency resonance test device according to claim 2, It is characterized in that A first gear (214) is rotatably mounted on the side of the mounting plate (207); a connecting rod (215) is fixedly mounted on the left side of the piston plate (213); a first threaded rod (216) is fixedly mounted on the left side of the connecting rod (215); the first threaded rod (216) penetrates into the interior of the mounting plate (207) and is threadedly connected to the first gear (214); a first sliding plate (217) is fixedly mounted on the end of the first threaded rod (216); a first sliding track (218) is fixedly mounted on the bottom of the mounting plate (207); the first sliding plate (217) is slidably connected to the first sliding track (218); a supporting plate (219) is fixedly mounted on the bottom of the first sliding track (218); a first spring (220) is fixedly mounted between the supporting plate (219) and the first sliding plate (217).

4. A variable frequency resonance test device according to claim 3, It is characterized in that A second sliding track (221) is fixedly mounted on the top of the mounting plate (207), and a plurality of second sliding tracks (221) are provided. Second sliding plates (222) are slidably mounted on the surfaces of the plurality of second sliding tracks (221). A first tooth groove (223) is provided at the bottom of the right second sliding plate (222), and the first tooth groove (223) is meshed with the first gear (214). Second tooth grooves (224) are provided on the sides of the two second sliding plates (222). A second gear (225) is rotatably mounted on the top of the mounting plate (207), and two second gears (225) are provided, and the two second gears (225) are meshed with the second tooth groove (224).

5. A variable frequency resonance test device according to claim 4, It is characterized in that The ends of the first connecting line (202), the spare connecting line (204) and the second connecting line (206) are all fixedly installed with terminal blocks (226); the surfaces of the plurality of terminal blocks (226) are all provided with first sliding grooves (227); a connecting plate (228) is slidably installed inside the first sliding groove (227); the connecting plate (228) is arranged between the left and right terminal blocks (226); a wiring port (229) is fixedly installed on the top of the connecting plate (228); a second threaded rod (230) is fixedly installed on the bottom of the connecting plate (228); a first threaded cylinder (231) is fixedly installed on the top of the second gear (225); the first threaded cylinder (231) is threadedly connected to the second threaded rod (230).

6. A variable frequency resonance test device according to claim 5, It is characterized in that The conversion mechanism (3) comprises a vertical plate (301), a second threaded cylinder (302) is rotatably arranged inside the vertical plate (301), two second threaded cylinders (302) are provided, and the two second threaded cylinders (302) are connected by a belt, a third threaded rod (303) is fixedly installed at the front of the right second sliding plate (222), and the third threaded rod (303) is threadedly connected to the left second threaded cylinder (302), and a fourth threaded rod (304) is fixedly installed at the rear of the front second sliding plate (222), and the fourth threaded rod (304) is threadedly connected to the right second threaded cylinder (302).

7. A variable frequency resonance test device according to claim 6, It is characterized in that A fixing plate (305) is fixedly installed on the top of the mounting plate (207), and two fixing plates (305) are provided. A third gear (306) is rotatably installed between the two fixing plates (305). A rotating shaft (307) is rotatably installed on the top of the third gear (306). A mounting frame (308) is fixedly installed on the top of the rotating shaft (307). A conversion line (309) is fixedly installed on the surface of the mounting frame (308). A first tooth plate (310) is fixedly installed on the front of the second sliding plate (222) on the left side, and the first tooth plate (310) is meshed with the third gear (306).

8. A variable frequency resonance test device according to claim 7, It is characterized in that A warning mechanism (4) is installed on the left side of the backup access port (203), and the warning mechanism (4) includes a first installation cavity (401), the first installation cavity (401) is opened inside the installation plate (207), a connecting pipe (402) is fixedly installed on the side of the first installation cavity (401), an air bag (403) is installed inside the first installation cavity (401), the air bag (403) is connected to the second placement box (211) through the connecting pipe (402), and a sliding frame (404) is slidably installed inside the first installation cavity (401), and the sliding frame (404) is in contact with the air bag (403).

9. A variable frequency resonance test device according to claim 8, It is characterized in that A second spring (405) is fixedly installed on the left side of the sliding frame (404), and the second spring (405) is arranged between the sliding frame (404) and the inner wall of the first installation cavity (401). A needle (406) is fixedly installed on the inner wall of the first installation cavity (401), and a plurality of needles (406) are arranged. A through hole (407) is opened on the surface of the sliding frame (404), and the through hole (407) corresponds to the needle (406). A fifth threaded rod (408) is fixedly installed on the left side of the sliding frame (404), and the fifth threaded rod (408) passes through the outside of the mounting plate (207) and is slidably connected to the mounting plate (207).

10. A variable frequency resonance test device according to claim 9, It is characterized in that A third threaded cylinder (409) is rotatably mounted on the left side of the mounting plate (207), the fifth threaded rod (408) is threadedly connected to the third threaded cylinder (409), a first bevel gear (410) is fixedly mounted on the end of the third threaded cylinder (409), a fourth gear (411) is rotatably mounted on the bottom of the inner cavity of the housing (1), a second bevel gear (412) is fixedly mounted on the top of the fourth gear (411), the second bevel gear (412) is meshed with the first bevel gear (410), a fifth gear (413) is rotatably mounted on the bottom of the inner cavity of the housing (1), and the fifth gear (413) is configured to be There are two of them, the tops of the two fifth gears (413) are fixedly mounted with fan gears (414), the front fifth gear (413) is meshed with the fourth gear (411), a second tooth plate (415) is slidably mounted on the bottom of the inner cavity of the shell (1), the fan gear (414) is meshed with the second tooth plate (415), a connecting frame (416) is fixedly mounted on the top of the second tooth plate (415), a striking rod (417) is fixedly mounted on the side of the connecting frame (416), a vibration plate (418) is fixedly mounted on the bottom of the inner cavity of the shell (1), and two vibration plates (418) are arranged.

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