Electric power safety tool tester

Abstract

The utility model discloses a kind of electric power safety tool tester vehicles, including vehicle body and carriage on vehicle body, a control cabinet is provided in carriage, a 12-way input 12-way output programmable PLC controller and a remote control receiving board are provided in control cabinet, the 4 input ends X1-X4 of programmable PLC controller are connected with the 4 output ends on remote control receiving board by wire respectively, the 8 output ends Y1-Y8 of programmable PLC controller are connected with corresponding solenoid valve on tester vehicle respectively and control its on-off, the oil circuit of solenoid valve is connected with corresponding oil cylinder through respective synchronizing valve;Remote control receiving board is wirelessly connected with remote controller, 4 keys are provided on remote controller, remote control receiving board receives wireless signal from remote controller, and it is converted into switch signal and is transmitted to programmable PLC controller by output end, programmable PLC controller controls corresponding oil cylinder telescoping, and then drive supporting leg, ceiling, left side box board and platform action, so that carriage can be automatically unfolded and automatically withdrawn according to program control.

Description

Technical Field

[0001] This utility model relates to the field of power safety equipment testing, and in particular to a power safety equipment testing vehicle. Background Technology

[0002] Chinese invention patent 201610620312.1 discloses a mobile laboratory for preventive testing of electrical safety tools, comprising a van and testing equipment. Its key feature is that the van's cover, when fully opened, is flush with the vehicle roof, forming a large roof. An automatically deployable platform is movably connected to the vehicle floor on one side, and to an outer platform on the other side via a specially designed hinge. Multiple Y-shaped support legs are installed at the lower part of the connection between the automatically deployable platform and the outer platform. A front inner platform and a front outer platform are located on one side of the automatically deployable platform and the outer platform, and a rear inner platform and a rear outer platform are located on the other side. When opened, the automatically deployable platform, outer platform, front outer platform, front inner platform, rear inner platform, and rear outer platform, together with the vehicle floor, form a testing platform. Testing and inspection equipment is installed on this testing platform. This invention organically combines the testing equipment and the deployable vehicle to form a mobile laboratory. Currently, existing testing vehicles generally rely on manual operation of hydraulic levers for deployment and retrieval. Due to the complexity of the deployment and retrieval steps and the difficulty of operation, damage to the testing vehicle's cargo compartment often occurs due to operational errors. Summary of the Invention

[0003] This utility model provides a power safety tool testing vehicle. Through a control cabinet on the vehicle, the vehicle compartment can be automatically deployed and retracted according to a program. This simplifies the operation of deploying and retracting the vehicle compartment, and solves the problem of damage to the vehicle compartment caused by incorrect operation when currently relying on manual operation of hydraulic levers for deployment and retraction. The specific technical solution is as follows: A power safety equipment testing vehicle includes a vehicle body and a compartment mounted on the vehicle body. The compartment contains a control cabinet, which includes a cabinet body and a door hinged to the cabinet body. Inside the cabinet is a 12-in, 12-out programmable PLC controller and a remote control receiver board. The four input terminals X1-X4 of the programmable PLC controller are connected to the four output terminals of the remote control receiver board via wires. The eight output terminals Y1-Y8 of the programmable PLC controller are connected to corresponding solenoid valves on the testing vehicle and control their on / off states. The oil circuits of the solenoid valves are connected to corresponding hydraulic cylinders via their respective synchronization valves. The remote control receiver board is wirelessly connected to a remote control with four buttons. The remote control receiver board receives wireless signals from the remote control and converts them into switch signals, which are then transmitted to the programmable PLC controller via its output terminals. The programmable PLC controller controls the extension and retraction of the corresponding hydraulic cylinders, thereby driving the movement of the outriggers, roof, left side panel, and platform.

[0004] Furthermore, the four buttons on the remote control are the automatic deployment button 1, automatic deployment button 2, automatic retraction button 1, and automatic retraction button 2. The automatic deployment button 1 and automatic retraction button 2 are used to control the sequential extension and retraction of the outrigger cylinder, the roof cylinder, and the left side panel cylinder, thereby driving the outrigger, roof, and left side panel to move sequentially. The automatic deployment button 2 and automatic retraction button 1 are used to control the extension and retraction of the platform cylinder, thereby driving the platform to move.

[0005] Furthermore, the cabinet door is equipped with 12 buttons: Automatic Expansion 1, Automatic Expansion 2, Automatic Retraction 1, Automatic Retraction 2, Leg Extension, Leg Retraction, Roof Raise, Roof Retraction, Left Side Panel Expansion, Left Side Panel Retraction, Platform Expansion, and Platform Retraction. These 12 buttons are connected to the corresponding 12 input terminals X1-X12 of the programmable PLC controller via wires. The corresponding hydraulic cylinder actions can be controlled by manually operating the buttons on the cabinet door, which can be used as an emergency measure when the remote control malfunctions or for individual debugging of the legs, roof, left side panel, and platform.

[0006] Furthermore, all eight solenoid valves are installed at the bottom of the test vehicle's cargo compartment. The oil circuits of the outrigger extension and retraction solenoid valves are connected to the outrigger cylinders via their respective synchronization valves to control the extension and retraction of the outriggers; the oil circuits of the roof raising and retraction solenoid valves are connected to the roof cylinders via their respective synchronization valves to control the raising and retraction of the roof; the oil circuits of the left side panel unfolding and retraction solenoid valves are connected to the left side panel cylinders via their respective synchronization valves to control the unfolding and retraction of the left side panel; and the oil circuits of the platform unfolding and retraction solenoid valves are connected to the platform cylinders via their respective synchronization valves to control the unfolding and retraction of the platform.

[0007] Furthermore, there are four outrigger cylinders, each connected to a synchronization valve on the outrigger extension solenoid valve and the outrigger retraction solenoid valve, allowing the four outrigger cylinders to extend or retract synchronously. There are also four roof cylinders, each connected to a synchronization valve on the roof raising solenoid valve and the roof retraction solenoid valve, allowing the four roof cylinders to extend or retract synchronously. There are two left-side panel cylinders, each connected to a synchronization valve on the left-side panel unfolding solenoid valve and the left-side panel retraction solenoid valve, allowing the two left-side panel cylinders to extend or retract synchronously. Finally, there are two platform cylinders, each connected to a synchronization valve on the platform unfolding solenoid valve and the platform retraction solenoid valve, allowing the two platform cylinders to extend or retract synchronously.

[0008] Furthermore, the four support cylinders are fixed under the carriage, and each support cylinder has a support foot at its bottom; the four roof cylinders are fixed at the four corners of the carriage and connected to the roof; one end of the two left side panel cylinders is hinged to the roof and the other end is hinged to the left side panel; one end of the two platform cylinders is hinged to the carriage and the other end is hinged to the platform.

[0009] Furthermore, the cabinet is also equipped with a main switch, a test power contactor, and a control switch. One end of the main switch is connected to the power cord, and the other end is connected to the test power contactor and the control switch via cables. The control switch is connected to the carriage lighting and the 24V power supply box via wires. The test power contactor is connected to the switches of each test device. The output of the 24V power supply box is connected to the programmable PLC controller. The programmable PLC controller is connected to the remote control receiver board, thereby providing power to it.

[0010] Furthermore, the switches for each test device are all located inside the cabinet, and each test power contactor is controlled by a separate air switch.

[0011] Furthermore, the test power contactor is connected to the control circuit in the control box via a cable. The control box is equipped with an emergency stop switch and a start switch, which are connected to the power supply of the control circuit. In case of an accident during the test, the emergency stop switch can be used to de-energize the coil of the test power contactor, thereby stopping the test power contactor from working and cutting off the power supply to the test equipment to provide protection.

[0012] Furthermore, the cabinet is equipped with control boards for controlling various test equipment. Each control board communicates with a router via WiFi, and the router communicates with a laptop via WiFi. The laptop contains a test control system and management software, which allows for the control and unified management of the test equipment.

[0013] This utility model has a simple structure and reasonable design. Through the control cabinet on the test vehicle, the carriage can be automatically unfolded and retracted according to the program. At the same time, it simplifies the operation difficulty of unfolding and retracting the test vehicle carriage and solves the problem of damage to the test vehicle carriage caused by operation errors when the test vehicle is unfolded and retracted by manually operating the hydraulic control lever. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the carriage of this utility model in its fully unfolded state; Figure 3 This is a schematic diagram showing the state of the support legs, roof, and left side panel of this utility model after they are opened; Figure 4 It is done manually Figure 3 A schematic diagram of the structure after the platform beams and support legs are placed; Figure 5 This utility model is a three-dimensional structure that fully unfolds the carriage and places and fixes the test equipment. Figure 1 ; Figure 6 yes Figure 5 An enlarged structural diagram of part A; Figure 7 This is a side view of the present invention with the test equipment fully unfolded and fixed in place in the carriage; Figure 8 yes Figure 7 An enlarged structural diagram of part B; Figure 9 This utility model is a three-dimensional structure that fully unfolds the carriage and places and fixes the test equipment. Figure 2 ; Figure 10 This is the front view of the control cabinet of this utility model; Figure 11 This is a schematic diagram of the connection structure between the remote control receiver board and the programmable PLC controller of this utility model; Figure 12 This is a flowchart of the internal structure of the control cabinet of this utility model; Figure 13 This is a flowchart of the present invention. Detailed Implementation

[0015] To better understand the purpose, function, and specific design scheme of this utility model, the following description of the power safety tool testing vehicle of this utility model is provided in further detail with reference to the accompanying drawings.

[0016] like Figures 1-9 As shown, the power safety tool testing vehicle of this utility model includes a vehicle body 1 and a carriage 2 installed on the vehicle body 1. The carriage 2 is equipped with a high voltage testing device 8, an insulating boot and insulating glove testing device 9, a voltage detector testing frame 10, a mechanical testing device 11, an insulating rod testing frame 12, a folding testing platform 13, an insulating rope testing frame 14, and a control cabinet 15. The control cabinet 15 is installed in the upper left corner inside the carriage 2. The carriage 2 can be automatically unfolded and automatically retracted according to the program through the control cabinet 15.

[0017] Specifically, such as Figures 1-13As shown, the control cabinet 15 includes a cabinet body and a door hinged to the cabinet body. Inside the cabinet is a 12-in, 12-out programmable PLC controller and a remote control receiver board. The four input terminals X1-X4 of the programmable PLC controller are connected to the four output terminals of the remote control receiver board via wires. The eight output terminals Y1-Y8 of the programmable PLC controller are connected to corresponding solenoid valves on the test vehicle and control their on / off states. The oil circuits of the solenoid valves are connected to their respective hydraulic cylinders via their respective synchronization valves. The remote control receiver board is wirelessly connected to a remote control with four buttons. The remote control receiver board receives the wireless signal from the remote control and converts it into a switch signal, which is then transmitted to the programmable PLC controller via its output terminal. The programmable PLC controller controls the extension and retraction of the corresponding hydraulic cylinders, thereby driving the movement of the support legs 23, the roof 3, the left side panel 4, and the platform 5.

[0018] The remote control has four buttons: Automatic Deployment 1, Automatic Deployment 2, Automatic Retraction 1, and Automatic Retraction 2. The Automatic Deployment 1 and Automatic Retraction 2 buttons control the sequential extension and retraction of the outrigger cylinder 18, the roof cylinder 16, and the left side panel cylinder 17, thereby causing the outrigger 23, roof 3, and left side panel 4 to move sequentially. The Automatic Deployment 2 and Automatic Retraction 1 buttons control the extension and retraction of the platform cylinder 19, thereby causing the platform 5 to move.

[0019] The control cabinet 15 has 12 buttons on its door: automatic unfold 1, automatic unfold 2, automatic retract 1, automatic retract 2, outrigger extension, outrigger retraction, roof rise, roof retraction, left side panel unfold, left side panel retraction, platform unfold, and platform retraction. These 12 buttons are connected to the corresponding 12 input terminals X1-X12 of the programmable PLC controller via wires. The corresponding hydraulic cylinder actions can be controlled by manually operating the buttons on the cabinet door. This can be used as an emergency measure when the remote control malfunctions, or for individual debugging of the outrigger 23, roof 3, left side panel 4, and platform 5.

[0020] All eight solenoid valves are installed at the bottom of the carriage 2. The hydraulic circuits of the outrigger extension and retraction solenoid valves are connected to the outrigger cylinder 18 via their respective synchronization valves to control the extension and retraction of the outriggers 23. The hydraulic circuits of the roof raising and retraction solenoid valves are connected to the roof cylinder 16 via their respective synchronization valves to control the raising and retraction of the roof 3. The hydraulic circuits of the left side panel unfolding and retraction solenoid valves are connected to the left side panel cylinder 17 via their respective synchronization valves to control the unfolding and retraction of the left side panel 4. The hydraulic circuits of the platform unfolding and retraction solenoid valves are connected to the platform cylinder 19 via their respective synchronization valves to control the unfolding and retraction of the platform 5.

[0021] There are four outrigger cylinders 18, which are fixed under the carriage 2. Each outrigger cylinder 18 has a foot 23 at its bottom. The four outrigger cylinders 18 are connected to the synchronization valves on the outrigger extension solenoid valve and the outrigger retraction solenoid valve, respectively, so that the four outrigger cylinders 18 can extend or retract synchronously.

[0022] There are four roof cylinders 16, which are fixed at the four corners of the carriage 2 and connected to the roof 3. The four roof cylinders 16 are respectively connected to the synchronization valves on the roof raising solenoid valve and the roof retraction solenoid valve, so that the four roof cylinders 16 can extend or retract synchronously.

[0023] There are two left-side panel cylinders 17. One end of each cylinder is hinged to the ceiling 3, and the other end is hinged to the left-side panel 4. The two cylinders are connected to the synchronization valves on the left-side panel extension solenoid valve and the left-side panel retraction solenoid valve, respectively, so that the two cylinders can extend or retract synchronously.

[0024] The platform cylinders 19 are of two types, with one end of each cylinder hinged to the carriage 2 and the other end hinged to the platform 5. The two platform cylinders 19 are respectively connected to the synchronization valves on the platform deployment solenoid valve and the platform retraction solenoid valve, so that the two platform cylinders 19 can extend or retract synchronously.

[0025] The control cabinet 15 also houses a main switch, a test power contactor, and a control switch. One end of the main switch is connected to a power cord, and the other end is connected to the test power contactor and the control switch via cables. The control switch is connected to the carriage lighting and the 24V power supply box via wires. The test power contactor is connected to the switches of the high-voltage testing equipment 8, the insulating boot and insulating glove testing equipment 9, and the mechanical testing equipment 11 via circuits. The output of the 24V power supply box is connected to a programmable PLC controller, which is connected to a remote control receiver board to provide power.

[0026] The switches for the high-voltage testing equipment 8, the insulating boot and insulating glove testing equipment 9, and the mechanical testing equipment 11 are all located inside the control cabinet 15. The test power contactor is connected to the high-voltage testing equipment 8, the insulating boot and insulating glove testing equipment 9, and the mechanical testing equipment 11. Each of them is controlled by a separate air switch.

[0027] The test power contactor is connected to the control circuit in the control box via a cable. The control box is equipped with an emergency stop switch and a start switch, which are connected to the power supply of the control circuit. In case of an accident during the test, the emergency stop switch can be used to de-energize the coil of the test power contactor, thereby stopping the test power contactor from working and cutting off the power supply to the test equipment to provide protection.

[0028] The control cabinet 15 is also equipped with control boards for controlling various test equipment. The control boards of each test equipment are connected to the router via WiFi. The router is connected to the laptop via WiFi. The laptop is equipped with a test control system and management software. The test equipment can be controlled and managed in a unified manner through the test control system and management software.

[0029] In use, press the "Automatic Deployment 1" button on the remote control. The four outrigger cylinders 18 will extend, lifting the supporting tires of the vehicle body 1 off the ground. After the outrigger cylinders 18 are fully extended and a few seconds later, the outrigger extension stops. At this time, the outrigger 23 contacts the ground. Then, the roof 3 is raised by the four roof cylinders 16. At the same time, the left side panel 4 is deployed outward by the two left side panel cylinders 17 until the roof 3 reaches its highest point. That is, the roof cylinders 16 are fully extended and a few seconds later, the roof raising stops. The left side panel 4 is deployed and stops when it is level with the roof 3. That is, the left side panel cylinders 17 are fully extended and a few seconds later, the left side panel deployment stops. At this point, the staff needs to unfold the two platform beams 21 by 90° and pull out the support legs 22 from the beams 21 so that the support legs 22 are perpendicular to the ground. After placement, the staff leaves the unfolded area of ​​platform 5 and presses the automatic unfolding button 2 on the remote control. Platform 5 uses the hinge 20 connected to the carriage 2 as the pivot, and the platform cylinder 19 begins to extend, causing platform 5 to slowly fall onto the beams 21. After the platform cylinder 19 is fully extended and there is a delay of a few seconds, the platform unfolding action stops, and carriage 2 is fully unfolded (e.g., Figure 2 (As shown).

[0030] The test personnel pulled the cable from the cable box of the test vehicle and connected it to a nearby distribution box to provide power for the test vehicle. The grounding wire was connected, and the test area was fenced off to create a safe testing zone. A ladder 7 was installed at the rear of platform 5 for easy access. Insulated protective railings 6 were installed at the front and left side of the platform. The pre-test preparations were complete. Based on the test equipment used in the test, the test equipment was placed and secured on the carriage 2 and platform 5 (e.g., Figure 9 As shown in the figure, the experimental work began.

[0031] After the test, the insulating protective fence 6 and ladder 7 were removed. Then, the test equipment placed on platform 5 was moved to carriage 2. The automatic retraction button 1 on the remote control was pressed, and the platform cylinder 19 retracted, causing platform 5 to flip upwards to an upright position. After the platform cylinder 19 was fully retracted and a few seconds later, the platform retraction stopped. The workers then flattened the support legs 22 and pushed them into the crossbeam 21 of platform 5. The crossbeam 21 of platform 5 was then moved horizontally into carriage 2. After completing this operation, the workers removed platform 5. In the designated area, press the "Auto Retract 2" button on the remote control. The left side panel cylinder 17 retracts, causing the left side panel 4 to flip downwards. Simultaneously, the roof cylinder 16 retracts, causing the roof 3 to descend until it contacts the carriage 2. After the left side panel cylinder 17 and roof cylinder 16 are fully retracted and a few seconds later, the retraction of the left side panel and roof stops. The four outrigger cylinders 18 retract, and after a few seconds, the retraction stops. At this point, the supporting tires of the carriage 1 are in contact with the ground, and the retraction of the carriage 2 is complete (e.g., ...). Figure 1 (As shown).

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A test vehicle for electrical safety equipment, comprising a vehicle body and a carriage mounted on the vehicle body, characterized in that, The carriage is equipped with a control cabinet, which includes a cabinet body and a door hinged to the cabinet body. Inside the cabinet is a 12-in, 12-out programmable PLC controller and a remote control receiver board. The four input terminals X1-X4 of the programmable PLC controller are connected to the four output terminals of the remote control receiver board via wires. The eight output terminals Y1-Y8 of the programmable PLC controller are connected to the corresponding solenoid valves on the test vehicle and control their on / off states. The oil circuits of the solenoid valves are connected to the corresponding hydraulic cylinders via their respective synchronization valves. The remote control receiver board is wirelessly connected to a remote control with four buttons. The remote control receiver board receives the wireless signals from the remote control and converts them into switch signals, which are then transmitted to the programmable PLC controller through the output terminals. The programmable PLC controller controls the extension and retraction of the corresponding hydraulic cylinders, thereby driving the movement of the outriggers, roof, left side panel, and platform.

2. The power safety tool testing vehicle according to claim 1, characterized in that, The four buttons on the remote control are the automatic deployment button 1, automatic deployment button 2, automatic retraction button 1, and automatic retraction button 2. The automatic deployment button 1 and automatic retraction button 2 are used to control the extension and retraction of the outrigger cylinder, the canopy cylinder, and the left side panel cylinder in sequence, thereby driving the outrigger, canopy, and left side panel to move in sequence. The automatic deployment button 2 and automatic retraction button 1 are used to control the extension and retraction of the platform cylinder, thereby driving the platform to move.

3. The power safety tool testing vehicle according to claim 1 or 2, characterized in that, The cabinet door is equipped with 12 buttons: Automatic Expansion 1, Automatic Expansion 2, Automatic Retraction 1, Automatic Retraction 2, Leg Extension, Leg Retraction, Roof Raise, Roof Retraction, Left Side Panel Expansion, Left Side Panel Retraction, Platform Expansion, and Platform Retraction. These 12 buttons are connected to the corresponding 12 input terminals X1-X12 of the programmable PLC controller via wires. The corresponding hydraulic cylinder actions can be controlled by manually operating the buttons on the cabinet door. This allows for emergency use when the remote control malfunctions or for individual debugging of the legs, roof, left side panel, and platform.

4. The power safety tool testing vehicle according to claim 1, characterized in that, All eight solenoid valves are installed at the bottom of the test vehicle's cargo compartment. The oil circuits of the outrigger extension solenoid valve and the outrigger retraction solenoid valve are connected to the outrigger cylinders via their respective synchronization valves to control the extension and retraction of the outriggers. The oil circuits of the roof raising solenoid valve and the roof retraction solenoid valve are connected to the roof cylinders via their respective synchronization valves to control the raising and retraction of the roof. The oil circuits of the left side panel unfolding solenoid valve and the left side panel retraction solenoid valve are connected to the left side panel cylinders via their respective synchronization valves to control the unfolding and retraction of the left side panel. The oil circuits of the platform unfolding solenoid valve and the platform retraction solenoid valve are connected to the platform cylinders via their respective synchronization valves to control the unfolding and retraction of the platform.

5. The power safety tool testing vehicle according to claim 4, characterized in that, There are four outrigger cylinders, each connected to a synchronizing valve on the outrigger extension solenoid valve and the outrigger retraction solenoid valve, allowing them to extend or retract synchronously. There are also four roof cylinders, each connected to a synchronizing valve on the roof raising solenoid valve and the roof retraction solenoid valve, allowing them to extend or retract synchronously. There are two left-side panel cylinders, each connected to a synchronizing valve on the left-side panel unfolding solenoid valve and the left-side panel retraction solenoid valve, allowing them to extend or retract synchronously. Finally, there are two platform cylinders, each connected to a synchronizing valve on the platform unfolding solenoid valve and the platform retraction solenoid valve, allowing them to extend or retract synchronously.

6. The power safety tool testing vehicle according to claim 5, characterized in that, The four outrigger cylinders are fixed to the bottom of the carriage, and each outrigger cylinder has an outrigger at its bottom; the four roof cylinders are fixed to the four corners of the carriage and connected to the roof. One end of each of the two left-side panel hydraulic cylinders is hinged to the roof, and the other end is hinged to the left-side panel; one end of each of the two platform hydraulic cylinders is hinged to the carriage, and the other end is hinged to the platform.

7. The power safety tool testing vehicle according to claim 1, characterized in that, The cabinet is also equipped with a main switch, a test power contactor, and a control switch. One end of the main switch is connected to the power cord, and the other end is connected to the test power contactor and the control switch via cables. The control switch is connected to the carriage lighting and the 24V power supply box via wires. The test power contactor is connected to the switches of each test device. The output of the 24V power supply box is connected to the programmable PLC controller. The programmable PLC controller is connected to the remote control receiver board, which in turn provides power to it.

8. The power safety tool testing vehicle according to claim 7, characterized in that, The switches for each test device are located inside the cabinet, and each test power contactor is controlled by a separate air switch.

9. The power safety tool testing vehicle according to claim 7 or 8, characterized in that, The test power contactor is connected to the control circuit in the control box via a cable. The control box is equipped with an emergency stop switch and a start switch, which are connected to the power supply of the control circuit. In case of an accident during the test, the emergency stop switch can be used to de-energize the coil of the test power contactor, thereby stopping the test power contactor from working and cutting off the power supply to the test equipment to provide protection.

10. The power safety tool testing vehicle according to claim 7, characterized in that, The cabinet also contains control boards for controlling various test equipment. Each control board communicates with a router via WiFi, and the router communicates with a laptop via WiFi. The laptop contains a test control system and management software, which allows for the control and unified management of the test equipment.

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