A substation equipment fault judgment detection device and a use method

Abstract

The application relates to the technical field of detection equipment, and provides a substation equipment fault judgment detection device and a use method, which comprises a supporting part, a telescopic buffer part fixedly connected with the supporting part, and at least three clamping parts fixed on the telescopic buffer part; each clamping part is provided with a detection equipment; each detection equipment comprises an equipment main body, one end of the equipment main body is fixedly connected with a handle, the handle is sleeved in the inside of the clamping part and is fixedly connected with the clamping part; the detection equipment is designed in a portable handheld mode; the other end of the equipment main body is fixedly connected with a detection head, and a piezoelectric ceramic sensor is fixedly connected in the inside of the detection head. Through the piezoelectric ceramic sensor, not only the running vibration of the equipment to be detected can be accurately collected, but also other equipment and environmental noise near the piezoelectric ceramic sensor can be shielded, so that the accuracy of sampling is ensured. Meanwhile, the telescopic buffer part can be used for detecting the equipment to be detected at a higher position.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, specifically a fault diagnosis and testing device for substation equipment and its usage method. Background Technology

[0002] A substation is a place in a power system that transforms voltage and current, receives electrical energy, and distributes electrical energy. The substation in a power plant is a step-up substation, whose function is to step up the electrical energy generated by the generator and feed it into the high-voltage power grid.

[0003] Substations contain numerous important electrical and electronic equipment, such as various shielded cabinets, microcomputer-based five-proof devices, switches, disconnectors, and instruments. The reliability requirements for these devices are self-evident. How to predict faults and discover potential hazards in online equipment is an urgent and necessary issue. During operation, all of the above-mentioned equipment will emit different types and loudnesses of vibration curves due to factors such as power frequency, high frequency resonance, fan operation, and contact vibration. Although the manifestations are complex, the principle of spectrum analysis can be used to predict their faults.

[0004] Existing substation equipment fault diagnosis and detection devices are unable to predict faults and detect potential hazards in advance for online operating equipment such as various shielded cabinets, microcomputer-based five-proof devices, switches, disconnectors, and instruments. They cannot guarantee the accuracy of detection. Furthermore, when conducting fault detection, substation equipment installed at high locations is often encountered, which not only makes detection inconvenient but also risks the equipment falling during the detection process, causing damage and affecting the service life of the device. Summary of the Invention

[0005] This application addresses the problem that the aforementioned substation equipment fault diagnosis and detection devices are unable to predict faults in online operating equipment such as various shielded cabinets, microcomputer-based five-proof systems, switches, disconnectors, and instruments, and that substation equipment installed at high locations is difficult to detect. On one hand, it provides a substation equipment fault diagnosis and detection device, including: a support unit;

[0006] The support is provided with a telescopic buffer part, one end of which is fixedly connected to the support, and at least three clamping parts are fixed on the other end.

[0007] Each of the clamping parts is equipped with a detection device;

[0008] Each of the testing devices includes: a device body, one end of which is fixedly connected to a handle, the handle being sleeved inside the clamping part and fixedly connected to the clamping part;

[0009] A detection head is fixedly connected to the other end of the main body of the device, and a piezoelectric ceramic sensor is fixedly connected inside the detection head.

[0010] In one feasible implementation, the support portion includes: an auxiliary base;

[0011] The auxiliary base is equipped with a first display screen;

[0012] The testing equipment also includes: a second display screen and a connection port;

[0013] The second display screen is electrically connected to the detection head, and the wiring port connects the first display screen and the second display screen through a wire;

[0014] The second display screen is used to receive and display the detection data acquired by the detection head;

[0015] The first display screen is used to synchronously display the detection data on the second display screen.

[0016] In one feasible implementation, support handles are fixedly connected to both sides of the auxiliary base.

[0017] In one feasible implementation, the device body is further provided with a USB interface, which is used to communicate with external devices and transmit detection data.

[0018] In one feasible implementation, the detection head is connected to the device body via a short shaft, and the detection device further includes a protective unit;

[0019] The protective part is provided on the outer surface of the main body of the equipment. The protective part includes: a protective outer shell, which is funnel-shaped and tapers at the short axis.

[0020] The protective outer shell has a movable rod at the closed end, the movable rod passes through the protective outer shell, and one end of the movable rod is fixed to the main body of the equipment;

[0021] A first spring is sleeved on the movable rod. The first spring is located between the main body of the equipment and the protective outer shell. The two ends of the first spring are in contact with the surfaces of the main body of the equipment and the protective outer shell, respectively.

[0022] The other end of the movable rod is provided with a connecting ring; the connecting ring is sleeved on the short shaft, and a plurality of elastic plates are provided on the side of the connecting ring facing away from the movable rod; one end of the elastic plate is fixed on the connecting ring, and the other end extends away from the connecting ring.

[0023] Several of the elastic plates are distributed along the outer circumferential edge of the connecting ring and surround the detection head.

[0024] In one feasible implementation, the clamping part includes a fixing post, one end of which is fixedly connected to the telescopic buffer part, and the other end of which is provided with a connecting sleeve, and the other end of the fixing post is fixedly connected to the outer circumferential surface of the connecting sleeve.

[0025] The connecting sleeve is equipped with a piston inside, and the piston is slidably connected to the connecting sleeve;

[0026] The piston includes a piston plate and a piston rod. One end of the piston rod is fixedly connected to the piston plate. The piston plate is disposed inside the connecting sleeve. The end of the piston rod away from the piston plate passes through the outer wall of the connecting sleeve.

[0027] The connecting sleeve is provided with a movable rod. One end of the movable rod passes through the connecting sleeve and is fixedly connected to a clamping plate. A second spring is sleeved on the movable rod. The second spring is located between the clamping plate and the inner wall of the connecting sleeve. The two ends of the second spring are fixedly connected to the clamping plate and the inner wall of the connecting sleeve, respectively.

[0028] The movable rod has an anti-detachment head on one end outside the connecting sleeve.

[0029] In one feasible implementation, the telescopic buffer includes a telescopic cylinder, a buffer section, and a support sleeve;

[0030] One end of the telescopic cylinder is fixedly connected to the support part, and the other end is fixedly connected to the buffer part;

[0031] At least a portion of the buffer section on the side opposite to the telescopic cylinder is nested inside the support sleeve and is slidably connected to the support sleeve.

[0032] The side of the support sleeve facing away from the buffer part is fixedly connected to the clamping part.

[0033] In one feasible implementation, the buffer section includes: a connecting base plate;

[0034] The connecting base plate is fixedly connected to one end of the telescopic cylinder, and a bending plate is fixedly connected to the upper surface of the connecting base plate;

[0035] At least a portion of the bent plate is nested inside the support sleeve and is slidably connected to the support sleeve;

[0036] An airbag and a stabilizing mechanism are provided between the opposing surfaces of the bending plate and the connecting base plate. The airbag is in contact with the surfaces of the bending plate and the connecting base plate. One end of the stabilizing mechanism is fixed to the bending plate, and the other end is fixed to the connecting base plate.

[0037] There are two stabilizing mechanisms, which are symmetrically arranged on both sides of the airbag.

[0038] In one feasible implementation, the stabilizing mechanism includes: a hydraulic cylinder;

[0039] The cylinder is provided with a top support rod, one end of which is slidably connected to the cylinder, and the other end of which is fixedly connected to the support sleeve.

[0040] The outer circumferential surface of the oil cylinder is provided with an inclined rod, one end of which is slidably connected to the oil cylinder; the other end of the inclined rod is provided with a rotating rod, and the other end of the inclined rod is fixedly connected to the middle part of the rotating rod.

[0041] One end of the rotating rod is connected to a fixing block, the fixing block is rotatably connected to the rotating rod, and the fixing block is fixed to the connecting base plate;

[0042] The other end of the rotating rod is connected to a roller, which is rotatably connected to the other end of the rotating rod. The outer surface of the roller is in contact with the surface of the support housing.

[0043] This application also provides a method for using a substation equipment fault diagnosis and detection device, applicable to any of the aforementioned substation equipment fault diagnosis and detection devices, the method comprising the following steps:

[0044] Insert the handle of the testing equipment into the clamping part to fix it in place;

[0045] Handle the support unit and use the telescopic buffer unit to lift the testing device to the height of the device under test;

[0046] Point the detection head at the substation equipment to be inspected, and use the piezoelectric ceramic sensor to detect the power equipment;

[0047] When there are multiple devices under test, the multiple testing devices are respectively inserted into each of the clamping parts for fixation, and the multiple devices under test are tested simultaneously.

[0048] As described above, the substation equipment fault diagnosis and detection device of this application includes: a support part and a telescopic buffer part; one end of the telescopic buffer part is fixedly connected to the support part, and at least three clamping parts are fixedly fixed on the other end; each clamping part is equipped with a detection device; multiple devices under test can be detected simultaneously through the clamping parts; each detection device includes: a device body, one end of which is fixedly connected to a handle, which is sleeved inside the clamping part and fixedly connected to the clamping part; the detection device of this application is small in size and light in weight, adopts a portable handheld design, and can work continuously; the other end of the device body is fixedly connected to a detection head, and a piezoelectric ceramic sensor is fixedly connected inside the detection head. Through the piezoelectric ceramic sensor, not only can the operating vibration of the device under test be accurately collected, but also the surrounding noise from other nearby devices and the environment can be shielded, ensuring the accuracy of sampling. At the same time, the telescopic buffer part allows for convenient detection of devices under test at higher positions. Attached Figure Description

[0049] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the implementation of the invention and, together with the description, serve to explain the principles of the embodiments of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0050] Figure 1 This is a schematic diagram of the overall structure of a substation equipment fault diagnosis and detection device, as shown in an exemplary embodiment of this application.

[0051] Figure 2 This is a partial structural schematic diagram of a substation equipment fault diagnosis and detection device shown in an exemplary embodiment of this application;

[0052] Figure 3 This is a schematic diagram of the structure of a detection device shown in an exemplary embodiment of this application;

[0053] Figure 4 A schematic diagram of the structure of the protection part shown in an exemplary embodiment of this application;

[0054] Figure 5 This is a schematic diagram of the structure of the clamping part shown in an exemplary embodiment of this application;

[0055] Figure 6 This is a schematic diagram of the structure of a buffer section shown in an exemplary embodiment of this application;

[0056] Figure 7 This is a schematic diagram of the stabilizing mechanism shown in an exemplary embodiment of this application.

[0057] Explanation of reference numerals in the attached figures:

[0058] 100 - Support section; 200 - Telescopic buffer section; 300 - Clamping section; 400 - Testing equipment;

[0059] 110-Auxiliary base; 120-First display screen; 130-Support handle; 210-Telescopic cylinder; 220-Buffer part; 230-Support sleeve; 310-Fixing column; 320-Connecting sleeve; 330-Piston; 340-Moving rod; 350-Second spring; 360-Clamping plate; 410-Equipment body; 420-Second display screen; 430-Handle; 440-Connection port; 450-USB interface; 460-Detection head; 470-Protection part; 480-Piezoelectric ceramic sensor; 490-Short shaft;

[0060] 221-Connecting base plate; 222-Bending plate; 223-Stabilizing mechanism; 224-Airbag; 331-Piston plate; 332-Piston rod; 471-Protective outer shell; 472-Connecting ring; 473-Elastic plate; 474-Moving rod; 475-First spring;

[0061] 2231-Hydraulic cylinder; 2232-Top support rod; 2233-Diagonal rod; 2234-Fixing block; 2235-Rotating rod; 2236-Roller. Detailed Implementation

[0062] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the embodiments of the invention will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a full understanding of how embodiments of the invention are carried out.

[0063] During operation, substation equipment emits various types and intensities of vibration curves due to factors such as power frequency, high-frequency resonance, fan operation, and contact vibration. Although these vibrations are complex, fault prediction can be achieved through the principle of spectrum analysis. Existing substation equipment fault diagnosis and detection devices struggle to predict faults and identify potential hazards in online equipment such as various shielded cabinets, microcomputer-controlled five-proof systems, switches, disconnectors, and instruments. This makes it difficult to guarantee the accuracy of detection. Furthermore, during fault detection, substation equipment installed at high locations is often difficult to inspect, and there is a risk of the equipment falling and causing damage, thus affecting the lifespan of the device.

[0064] To address the aforementioned problems, this application provides, on the one hand, a substation equipment fault diagnosis and detection device, referring to... Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the overall structure of a substation equipment fault diagnosis and detection device, as shown in an exemplary embodiment of this application.

[0065] Figure 2 This is a partial structural diagram of a substation equipment fault diagnosis and detection device shown in an exemplary embodiment of this application; it includes: a support part 100; a telescopic buffer part 200 is provided on the support part 100, one end of the telescopic buffer part 200 is fixedly connected to the support part 100, and at least three clamping parts 300 are fixed on the other end; each clamping part 300 is provided with a detection device 400.

[0066] The support unit 100 can be held by hand or placed on the ground, making it suitable for adjusting the position of the device when the device under test is in different positions. The telescopic buffer unit 200 can adjust the height of the clamping unit 300, and further adjust the height of the testing device 400. When the device under test is in a high position, the testing device 400 can be raised to the same height as the device under test before testing. In addition, the support unit 100 can be placed on the ground, and the telescopic buffer unit 200 also has a buffering effect, which can effectively prevent the testing device 400 from shaking when it comes into contact with the device under test during testing at high altitudes.

[0067] Each testing device 400 includes: a device body 410, one end of which is fixedly connected to a handle 430, the handle 430 being sleeved inside the clamping part 300 and fixedly connected to the clamping part 300; the other end of the device body 410 is fixedly connected to a testing head 460, and a piezoelectric ceramic sensor 480 is fixedly connected inside the testing head 460.

[0068] It is understandable that the handle 430 and the clamping part 300 are detachably fixed. In addition to being fixed to the clamping part 300, the handle 430 can also be removed when the device under test is in a suitable position, and the device under test can be tested by holding the handle 430, which improves the flexibility of the test.

[0069] The piezoelectric ceramic sensor 480 in the detection head 460 can accurately collect the operating vibration of the device under test, while shielding other nearby devices and environmental noise to ensure the accuracy of sampling.

[0070] Another aspect of this application provides a method for using a substation equipment fault diagnosis and detection device. When using this device, firstly, the handle 430 of the detection device 400 is inserted into the clamping part 300 for fixation; secondly, the support part 100 is held, and the detection device 400 is raised to the height of the device under test via the telescopic buffer part 200; finally, the detection head 460 is aligned with the substation equipment to be tested, and the piezoelectric ceramic sensor 480 detects the electrical equipment. When there are multiple devices under test, multiple detection devices 400 are respectively inserted into their respective clamping parts 300 for fixation, and multiple devices under test are tested simultaneously.

[0071] As described above, the substation equipment fault diagnosis and detection device of this application includes: a support part 100 and a telescopic buffer part 200; at least three clamping parts 300 are fixed on the telescopic buffer part 200; each clamping part 300 is equipped with a detection device 400; in use, multiple detection devices 400 can be fixed simultaneously through the clamping parts 300, and multiple devices to be tested can be detected; each detection device 400 includes: a device body 410 and a handle 430; the handle 430 is sleeved inside the clamping part 300 and fixedly connected to the clamping part 300; in use, the handle is used to fix the more than 430 detection devices 400 in the clamping part 300. A detection head 460 is fixedly connected to the other end of the device body 410, and a piezoelectric ceramic sensor 480 is fixedly connected inside the detection head 460. This device, through the piezoelectric ceramic sensor 480, can not only accurately collect the operating vibration of the device under test, but also shield other nearby equipment and environmental noise, ensuring the accuracy of sampling. Meanwhile, the telescopic buffer 200 facilitates the testing of devices at higher positions and reduces the collision between the testing device 400 and the device under test during testing.

[0072] In some embodiments of this application, reference continues to be made to Figure 1 and Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of a testing device shown in an exemplary embodiment of this application; wherein, the testing device 400 further includes: a second display screen 420 and a wiring port 440. The support part 100 includes: an auxiliary base 110; a first display screen 120 is provided on the auxiliary base 110; the second display screen 420 is electrically connected to the testing head 460, and the wiring port 440 communicatively connects the first display screen 120 and the second display screen 420 through a wire; the second display screen 420 is used to receive and display the testing data acquired by the testing head 460; the first display screen 120 is used to synchronously display the testing data on the second display screen 420.

[0073] When the device is used at a low position, the operator holds the handle 430 and aligns the detection head 460 with the substation equipment to be tested. The piezoelectric ceramic sensor 480 is used to detect the electrical equipment, and the detected data is displayed on the second display screen 420. When the device is used for testing at a high altitude, the detection device 400 and the auxiliary base 110 can be electrically connected through the wiring port 440 and the wire, so that the data detected by the detection device 400 can be transmitted to the first display screen 120, which can be viewed by the operator on the ground, facilitating real-time recording of the detection data.

[0074] In some embodiments of this application, reference continues to be made to Figure 1 As shown, support handles 130 are fixedly connected to both sides of the auxiliary base 110. The support handles 130 can be used by workers to hold the equipment or hung on safety equipment in the surrounding environment for easy fixation and high-altitude inspection.

[0075] In some embodiments of this application, reference continues to be made to Figure 3 As shown, the main body 410 of the device is also equipped with a USB interface 450, which is used to communicate with external devices and transmit test data. The USB interface allows connection to external devices for real-time data transmission. When the device is performing tests for an extended period or when there is a large amount of test data, the data can be recorded, saved, or processed by external devices, reducing manpower requirements.

[0076] In some embodiments of this application, reference is made to Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of the protective part shown in an exemplary embodiment of this application. In the device of this application, the detection head 460 is connected to the device body 410 through a short shaft 490. The detection device 400 also includes a protective part 470. The protective part 470 is disposed on the outer surface of the device body 410. The protective part 470 includes a protective outer shell 471, which is funnel-shaped and tapers at the short shaft 490. The protective outer shell 471 is used to protect the device body 410 when the detection device 400 is bumped. Through its funnel-shaped shape, it can completely wrap the device body 410 without contacting it, which can greatly reduce the shock during the bump and prevent the device body 410 from being damaged by the bump.

[0077] Furthermore, a movable rod 474 is provided on the closed end of the protective outer shell 471. The movable rod 474 passes through the protective outer shell 471, and one end of the movable rod 474 is fixed to the equipment body 410. A first spring 475 is sleeved on the movable rod 474. The first spring 475 is located between the equipment body 410 and the protective outer shell 471, and both ends of the first spring 475 are in contact with the surfaces of the equipment body 410 and the protective outer shell 471, respectively. When the detection equipment 400 is subjected to an axial impact, the first spring 475 can generate a force opposite to the direction of the impact, reducing the axial movement distance of the detection equipment 400 caused by the impact. This ensures that the detection head 460 on the detection equipment 400 can maintain contact with the device under test, avoiding contact breakage after an impact, which would result in discontinuous and inaccurate detection data.

[0078] A connecting ring 472 is provided on the other end of the movable rod 474; the connecting ring 472 is sleeved on the short shaft 490, and a number of elastic plates 473 are provided on the side of the connecting ring 472 facing away from the movable rod 474; one end of the elastic plate 473 is fixed on the connecting ring 472, and the other end extends away from the connecting ring 472; the number of elastic plates 473 are distributed along the outer circumferential edge of the connecting ring 472 and surround the detection head 460.

[0079] Since the detection head 460 is equipped with a piezoelectric ceramic sensor 480, which is the core component for detection, by setting an elastic plate 473 around the detection head 460, all surfaces of the piezoelectric ceramic sensor 480 except those in contact with the device under test can be effectively blocked, thereby avoiding all external forces that may damage the piezoelectric ceramic sensor 480 and extending the service life of the device.

[0080] Specifically, during device use, when the detection device 400 is accidentally dropped or impacted, the external impact force is first applied to the protective outer shell 471 and the elastic plate 473 via the protective part 470. The protective outer shell 471 covers the main body 410 of the device, and the impact force is weakened by the protective outer shell 471, thereby reducing the impact force on the main body 410 of the device and playing a role in protecting the main body 410 of the device. Under the elastic action of multiple elastic plates 473, part of the impact force is converted into elastic potential energy, which can protect the periphery of the detection head 460. The connecting ring 472 slides under pressure, and the moving rod 474 moves, causing the first spring 475 to be stretched and stored. Part of the impact force is converted into elastic potential energy by the first spring 475, which can protect the end of the detection head 4760 from impact.

[0081] In some embodiments of this application, reference is made to Figure 5 As shown, Figure 5This is a schematic diagram of the clamping part according to an exemplary embodiment of this application. The clamping part 300 includes a fixing post 310, one end of which is fixedly connected to the telescopic buffer part 200, and the other end of which is provided with a connecting sleeve 320. The other end of the fixing post 310 is fixedly connected to the outer circumferential surface of the connecting sleeve 320. The connecting sleeve 320 is used to accommodate the handle 430 on the testing device 400, and the connection between the clamping part 300 and the testing device 400 is realized through the connection between the connecting sleeve 320 and the handle 430.

[0082] A piston 330 is provided inside the connecting sleeve 320, and the piston 330 is slidably connected to the connecting sleeve 320. The piston 330 includes a piston plate 331 and a piston rod 332. One end of the piston rod 332 is fixedly connected to the piston plate 331, which is located inside the connecting sleeve 320. The end of the piston rod 332 away from the piston plate 331 passes through the outer wall of the connecting sleeve 320. The piston 330 can move along the axial direction of the connecting sleeve 320, creating a pressure difference with the handle 430 to hold the handle 430 in place and prevent it from falling off. Furthermore, when it is necessary to remove the handle 430, the handle 430 can be pushed out of the connecting sleeve 320 by the piston rod 332.

[0083] A movable rod 340 is provided on the connecting sleeve 320. One end of the movable rod 340 passes through the connecting sleeve 320 and is fixedly connected to a clamping plate 360. A second spring 350 is sleeved on the movable rod 340. The second spring 350 is located between the clamping plate 360 ​​and the inner wall of the connecting sleeve 320, and both ends of the second spring 350 are fixedly connected to the clamping plate 360 ​​and the inner wall of the connecting sleeve 320, respectively. An anti-detachment head is provided on the end of the movable rod 340 located outside the connecting sleeve 320. It can be understood that there can be multiple movable rods 340, distributed along the outer circumference of the connecting sleeve 320. The second spring 350 can easily insert and fix the handle 430 into the connecting sleeve, and the length of the second spring 350 is elastically adjustable to accommodate handles 430 of various sizes.

[0084] Specifically, when using the device, via the clamping part 300, when it is necessary to test electrical equipment at a higher position, the handle 430 of the testing device 400 is inserted into the connecting sleeve 320. As the handle 430 is pushed in, the air pressure inside the connecting sleeve 320 increases, and the piston 330 is pushed to the end of the connecting sleeve 320 by the air pressure. Under the action of air pressure, the handle 430 is attracted and fixed inside the connecting sleeve 320. At the same time, the clamping plate 360 ​​is squeezed and moved, driving the moving rod 340 to slide outward. The second spring 350 is compressed, and the elastic force of the second spring 350 after being squeezed exerts a reverse force on the clamping plate 360, causing the clamping plate 360 ​​to press the outer surface of the handle 430. Multiple clamping plates 360 exert force simultaneously to clamp the handle 430, further fixing the testing device 400 and preventing the testing device 430 from falling off, which facilitates subsequent testing of the equipment to be tested at a higher position. When it is necessary to remove the testing device 400, the piston 330 is pushed to push the handle 430 out.

[0085] In some embodiments of this application, reference continues to be made to Figure 1 As shown, the telescopic buffer 200 includes a telescopic cylinder 210, a buffer 220, and a support housing 230; one end of the telescopic cylinder 210 is fixedly connected to the support 100, and the other end is fixedly connected to the buffer 220; at least a portion of the side of the buffer 220 facing away from the telescopic cylinder 210 is nested inside the support housing 230 and is slidably connected to the support housing 230; the side of the support housing 230 facing away from the buffer 220 is fixedly connected to the clamping part 300.

[0086] The support housing 230 provides a fixed platform for the clamping part 300 and the testing device 400. It can be understood that multiple telescopic cylinders 210 can be used, achieving telescopic movement based on pneumatics to sequentially adjust the overall height of the device. It can also be understood that the telescopic cylinders 210 can be replaced with other components with telescopic functions; this application does not impose specific limitations. The buffer part 220 provides cushioning to the support housing 230 when the device is testing a high-level device; if the device shakes, it reduces the shaking experienced by the testing device 400.

[0087] In some embodiments of this application, reference is made to Figure 6 As shown, Figure 6This is a schematic diagram of the structure of a buffer section shown in an exemplary embodiment of this application; the buffer section 220 includes: a connecting base plate 221; the connecting base plate 221 is fixedly connected to one end of the telescopic cylinder 210, and a bending plate 222 is fixedly connected to the upper surface of the connecting base plate 221; at least a portion of the bending plate 222 is nested inside the support housing 230 and is slidably connected to the support housing 230; an airbag 224 and a stabilizing mechanism 223 are provided between the opposing surfaces of the bending plate 222 and the connecting base plate 221, the airbag 224 is in contact with the surfaces of the bending plate 222 and the connecting base plate 221, one end of the stabilizing mechanism 223 is fixed to the bending plate 222, and the other end is fixed to the connecting base plate 221; there are two stabilizing mechanisms 223, which are symmetrically arranged on both sides of the airbag 224.

[0088] Specifically, the elasticity of the airbag 224 in the buffer section 220 can provide buffer for the longitudinal vibration of the support shell 230, and the stabilizing mechanism 223 can provide buffer for the lateral vibration of the support shell 230, thereby reducing the shaking of the detection equipment 400 on the support shell 230, preventing the detection equipment 400 from being bumped and shaken during the detection process, which would make it unstable for the staff to hold the support section 100, and further improving the safety during the detection.

[0089] In some embodiments of this application, reference is made to Figure 7 As shown, Figure 7 This is a schematic diagram of the stabilizing mechanism shown in an exemplary embodiment of this application; the stabilizing mechanism 223 includes: a hydraulic cylinder 2231; a top support rod 2232 is provided on the hydraulic cylinder 2231, one end of the top support rod 2232 is slidably connected to the hydraulic cylinder 2231, and the other end of the top support rod 2232 is fixedly connected to the support sleeve 230; an inclined rod 2233 is provided on the outer circumferential surface of the hydraulic cylinder 2231, one end of the inclined rod 2233 is slidably connected to the hydraulic cylinder 2231; and a rotating part is provided at the other end of the inclined rod 2233. The other end of the movable rod 2235 and the inclined rod 2233 is fixedly connected to the middle part of the rotating rod 2235; one end of the rotating rod 2235 is connected to a fixing block 2234, which is rotatably connected to the rotating rod 2235 and is fixed on the connecting base plate 221; the other end of the rotating rod 2235 is connected to a roller 2236, which is rotatably connected to the other end of the rotating rod 2235, and the outer surface of the roller 2236 is in contact with the surface of the support sleeve 230.

[0090] Specifically, when the device is in use, when the support housing 230 sways laterally, the roller 2236 of the stabilizing mechanism 223 rolls along the lower surface of the support housing 230, the rotating rod 2235 swings under force, and the inclined rod 2233 is repeatedly squeezed. The cylinder 2231 is filled with hydraulic oil. According to the principle of communicating vessels, the top support rod 2232 pushes upward and abuts against the lower surface of the support housing 230. The vibration is absorbed by the hydraulic oil, which can provide buffer for the lateral vibration of the support housing 230.

[0091] As can be seen from the above, in some embodiments of this application, the substation equipment fault diagnosis and detection device, due to its second display screen, offers rich display content, is easy to operate, has a compact structure, a high degree of automation, and is easy to promote. Through the cooperation between the clamping part, the telescopic cylinder, the auxiliary base, and the first display screen, it is convenient to detect equipment at higher positions and can also detect multiple electrical devices simultaneously, greatly improving the device's practicality. The protection part provides protection for the main body of the equipment and the detection head, preventing damage from accidental drops or collisions; the buffer part provides cushioning when the device shakes, preventing the detection equipment from being bumped or shaken during testing, thus preventing the operator from being unstable in holding the auxiliary base, greatly improving safety during testing and extending the device's service life.

[0092] As described above, the substation equipment fault diagnosis and detection device of this application includes: a support part and a telescopic buffer part; one end of the telescopic buffer part is fixedly connected to the support part, and at least three clamping parts are fixedly fixed on the other end; each clamping part is equipped with a detection device; multiple devices under test can be detected simultaneously through the clamping parts; each detection device includes: a device body, one end of which is fixedly connected to a handle, which is sleeved inside the clamping part and fixedly connected to the clamping part; the detection device of this application is small in size and light in weight, adopts a portable handheld design, and can work continuously; the other end of the device body is fixedly connected to a detection head, and a piezoelectric ceramic sensor is fixedly connected inside the detection head. Through the piezoelectric ceramic sensor, not only can the operating vibration of the device under test be accurately collected, but also the surrounding noise from other nearby devices and the environment can be shielded, ensuring the accuracy of sampling. At the same time, the telescopic buffer part allows for convenient detection of devices under test at higher positions.

[0093] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a structure, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the structure, article, or apparatus that includes the element.

[0094] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

Claims

1. A fault diagnosis and detection device for substation equipment, characterized in that, include: Support part (100); The support (100) is provided with a telescopic buffer (200), one end of which is fixedly connected to the support (100), and at least three clamping parts (300) are fixed on the other end. The clamping part (300) includes a fixing post (310), one end of which is fixedly connected to the telescopic buffer part (200), and the other end of which is provided with a connecting sleeve (320), and the other end of which is fixedly connected to the outer circumferential surface of the connecting sleeve (320). The connecting sleeve (320) is provided with a piston (330) inside, and the piston (330) is slidably connected to the connecting sleeve (320); The piston (330) includes a piston plate (331) and a piston rod (332). One end of the piston rod (332) is fixedly connected to the piston plate (331). The piston plate (331) is located inside the connecting sleeve (320). The end of the piston rod (332) away from the piston plate (331) passes through the outer wall of the connecting sleeve (320). The connecting sleeve (320) is provided with a movable rod (340), one end of which passes through the connecting sleeve (320) and is fixedly connected to a clamping plate (360). A second spring (350) is sleeved on the movable rod (340). The second spring (350) is located between the clamping plate (360) and the inner wall of the connecting sleeve (320). The two ends of the second spring (350) are fixedly connected to the clamping plate (360) and the inner wall of the connecting sleeve (320), respectively. The movable rod (340) is provided with an anti-detachment head on one end outside the connecting sleeve (320); Each of the clamping parts (300) is provided with a detection device (400); Each of the testing devices (400) includes: a device body (410), one end of which is fixedly connected to a handle (430), the handle (430) being sleeved inside the clamping part (300) and fixedly connected to the clamping part (300); The other end of the main body (410) of the device is fixedly connected to a detection head (460), and a piezoelectric ceramic sensor (480) is fixedly connected inside the detection head (460).

2. The substation equipment fault diagnosis and detection device according to claim 1, characterized in that, The support (100) includes: an auxiliary base (110); The auxiliary base (110) is equipped with a first display screen (120). The testing device (400) further includes: a second display screen (420) and a connection port (440). The second display screen (420) is electrically connected to the detection head (460), and the wiring port (440) communicates with the first display screen (120) and the second display screen (420) through a wire; The second display screen (420) is used to receive and display the detection data acquired by the detection head (460); The first display screen (120) is used to synchronously display the detection data on the second display screen (420).

3. The substation equipment fault diagnosis and detection device according to claim 2, characterized in that, The auxiliary base (110) has support handles (130) fixedly connected to both sides.

4. The substation equipment fault diagnosis and detection device according to claim 2, characterized in that, The device body (410) is also provided with a USB interface (450), which is used to communicate with external devices and transmit detection data.

5. The substation equipment fault diagnosis and detection device according to claim 1, characterized in that, The detection head (460) is connected to the device body (410) via a short shaft (490), and the detection device (400) also includes a protective part (470). The protective part (470) is provided on the outer surface of the equipment body (410). The protective part (470) includes: a protective outer shell (471), which is funnel-shaped and tapers at the short axis (490). The protective outer shell (471) has a movable rod (474) at the closed end. The movable rod (474) passes through the protective outer shell (471), and one end of the movable rod (474) is fixed to the main body of the equipment (410). A first spring (475) is sleeved on the movable rod (474). The first spring (475) is located between the main body of the equipment (410) and the protective outer shell (471). The two ends of the first spring (475) are in contact with the surfaces of the main body of the equipment (410) and the protective outer shell (471), respectively. The other end of the movable rod (474) is provided with a connecting ring (472); the connecting ring (472) is sleeved on the short shaft (490), and a plurality of elastic plates (473) are provided on the side of the connecting ring (472) facing away from the movable rod (474); one end of the elastic plate (473) is fixed on the connecting ring (472), and the other end extends in a direction away from the connecting ring (472); Several of the elastic plates (473) are distributed along the outer circumferential edge of the connecting ring (472) and surround the detection head (460).

6. The substation equipment fault diagnosis and detection device according to claim 1, characterized in that, The telescopic buffer (200) includes a telescopic cylinder (210), a buffer (220), and a support sleeve (230). One end of the telescopic cylinder (210) is fixedly connected to the support part (100), and the other end is fixedly connected to the buffer part (220); At least a portion of the buffer section (220) on the side opposite to the telescopic cylinder (210) is nested inside the support sleeve (230) and is slidably connected to the support sleeve (230); The side of the support sleeve (230) facing away from the buffer part (220) is fixedly connected to the clamping part (300).

7. The substation equipment fault diagnosis and detection device according to claim 6, characterized in that, The buffer section (220) includes: a connecting base plate (221); The connecting base plate (221) is fixedly connected to one end of the telescopic cylinder (210), and a bending plate (222) is fixedly connected to the upper surface of the connecting base plate (221). At least a portion of the bent plate (222) is nested inside the support sleeve (230) and is slidably connected to the support sleeve (230); An airbag (224) and a stabilizing mechanism (223) are provided between the opposing surfaces of the bending plate (222) and the connecting base plate (221). The airbag (224) is in contact with the surfaces of the bending plate (222) and the connecting base plate (221). One end of the stabilizing mechanism (223) is fixed on the bending plate (222), and the other end is fixed on the connecting base plate (221). There are two stabilizing mechanisms (223), which are symmetrically arranged on both sides of the airbag (224).

8. The substation equipment fault diagnosis and detection device according to claim 7, characterized in that, The stabilizing mechanism (223) includes: a hydraulic cylinder (2231); The cylinder (2231) is provided with a top support rod (2232), one end of the top support rod (2232) is slidably connected to the cylinder (2231), and the other end of the top support rod (2232) is fixedly connected to the support sleeve (230); The outer circumferential surface of the oil cylinder (2231) is provided with a diagonal rod (2233), one end of the diagonal rod (2233) is slidably connected to the oil cylinder (2231); the other end of the diagonal rod (2233) is provided with a rotating rod (2235), and the other end of the diagonal rod (2233) is fixedly connected to the middle part of the rotating rod (2235); One end of the rotating rod (2235) is connected to a fixing block (2234), the fixing block (2234) is rotatably connected to the rotating rod (2235), and the fixing block (2234) is fixed on the connecting base plate (221); The other end of the rotating rod (2235) is connected to a roller (2236), which is rotatably connected to the other end of the rotating rod (2235). The outer surface of the roller (2236) is in contact with the surface of the support sleeve (230).

9. A method of using a substation equipment fault diagnosis and detection device, characterized in that, The method, applied to any one of the substation equipment fault diagnosis and detection devices according to claims 1-8, includes the following steps: Insert the handle (430) of the testing device (400) into the clamping part (300) for fixation; The handheld support (100) is used to lift the testing device (400) to the height of the device under test via the telescopic buffer (200); Align the detection head (460) with the substation equipment to be tested, and use the piezoelectric ceramic sensor (480) to test the power equipment; When there are multiple devices under test, multiple testing devices (400) are respectively inserted into each of the clamping parts (300) for fixation, and multiple devices under test are tested simultaneously.

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