Electrical equipment fault detection device

Abstract

The utility model discloses an electrical equipment fault detection device which comprises a connector, one end of the connector is fixedly connected with a telescopic piece, the extension end of the telescopic piece is fixedly connected with a U-shaped plate, and one end of the U-shaped plate is provided with a detection head structure. One end of the connector is connected with a supporting column through a connecting structure, and a portable moving mechanism is arranged on the outer wall of the supporting column; the detection head structure comprises an open annular plate fixedly connected to one side surface of the U-shaped plate, and a detection assembly fixedly connected to the inner side surface of the annular plate; the detection assembly comprises an infrared temperature measurement sensor, a partial discharge sensor and a current sensor. According to the utility model, the extension length of the telescopic member is adjusted according to different depths of underground pipelines, so that the displacement of the detection head structure is adjusted to detect faults of cables at various positions, a detection result can be given in time, compared with manual detection, the detection is more accurate, the detection period is short, the detection efficiency is high, and the comprehensiveness of fault detection is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment testing technology, and in particular to an electrical equipment fault detection device. Background Technology

[0002] With the advancement of urbanization, underground spaces, as an important component of urban development, are carrying an increasing number of electrical devices, including lighting systems, drainage pumps, ventilation equipment, power transformers, power transmission lines, and communication optical cables. These devices play a crucial role in ensuring the normal operation of underground spaces. However, due to the relatively enclosed and humid underground environment, coupled with limited space and difficult maintenance, cables are prone to aging, breakage, short circuits, and other faults, seriously threatening the safe operation of underground spaces.

[0003] Currently, traditional methods for detecting electrical equipment faults mainly involve periodic manual inspections. However, these methods suffer from problems such as long inspection cycles, low efficiency, and high dependence on personnel. This is especially true in underground spaces, where environmental limitations make it difficult for inspectors to access all cables, leading to incomplete and untimely fault detection. Therefore, developing an electrical equipment fault detection device suitable for underground spaces, characterized by high efficiency, intelligence, accuracy, and safety, is of paramount importance. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electrical equipment fault detection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An electrical equipment fault detection device includes a connector, one end of which is fixedly connected to a telescopic member, the extended end of which is fixedly connected to a U-shaped plate, and one end of the U-shaped plate is provided with a detection head structure.

[0007] One end of the connector is connected to a support column via a connecting structure, and a portable moving mechanism is provided on the outer wall of the support column.

[0008] As a further embodiment of this utility model: the detection head structure includes an open ring plate fixedly connected to one side of the U-shaped plate, and a detection component fixedly connected to the inner side of the ring plate.

[0009] As a further embodiment of this utility model: the detection component includes an infrared temperature sensor, a partial discharge sensor, and a current sensor, wherein the partial discharge sensor may be an ultrasonic sensor;

[0010] A display screen is fixedly connected to the outer circumference of the connector.

[0011] As a further improvement of this utility model, a warning light is fixedly connected to the outer circumference of the connector.

[0012] As a further improvement of this utility model, the outer circumferential wall of the connector is provided with a groove.

[0013] As a further improvement of this utility model, a lighting lamp is fixedly connected to one side of the U-shaped plate.

[0014] As a further embodiment of this utility model: the connection structure includes a threaded head fixedly connected to one end of the connector and a threaded hole provided at one end of the support column and adapted to the threaded head.

[0015] As a further embodiment of this utility model: the portable mobile mechanism includes a mounting base, a support fixedly connected to the top surface of the mounting base, a support leg fixedly connected to the bottom surface of the mounting base, and a universal wheel rotatably connected to the bottom end of the support leg;

[0016] The outer wall of the support column is rotatably connected to one side of the support via a pivot.

[0017] A handle is fixedly connected to one end of the support column.

[0018] Compared with the prior art, the present invention provides an electrical equipment fault detection device, which has the following beneficial effects:

[0019] 1. This electrical equipment fault detection device, by setting up telescopic components and detection head structures, adjusts the extension length of the telescopic components according to the different depths of underground pipelines, so as to adjust the displacement of the detection head structure to detect faults in cables at various locations, and can give the detection results in a timely manner. Compared with manual detection, it is more accurate, has a shorter detection cycle, higher detection efficiency, and improves the comprehensiveness of fault detection.

[0020] 2. This electrical equipment fault detection device uses a light to illuminate the area of ​​the cable to be tested, so that people can observe the cable position and aim the detection head structure for testing; pushing the mounting base to move the detection head structure can effectively save manpower for handling and changing detection points, and is easy to use.

[0021] 3. This electrical equipment fault detection device screws the connector into the threaded hole on the support column through the threaded head, thereby connecting the support column and the expansion joint as one unit. It is easy to disassemble and assemble, and the detection head structure can be selectively used according to the actual layout of underground cables. Attached Figure Description

[0022] Figure 1 This is a side view of the electrical equipment fault detection device proposed in this utility model;

[0023] Figure 2This is a top view of the electrical equipment fault detection device proposed in this utility model;

[0024] Figure 3 This is an exploded structural diagram of the support column and connector of an electrical equipment fault detection device proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the detection head structure of an electrical equipment fault detection device proposed in this utility model.

[0026] In the diagram: 1 Mounting base, 2 Warning light, 3 Telescopic component, 4 U-shaped plate, 5 Support, 6 Handle, 601 Support column, 602 Threaded hole, 7 Support leg, 701 Caster wheel, 8 Connector, 801 Groove, 802 Threaded head, 9 Display screen, 10 Lighting light, 11 Detection component, 12 Ring plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Example 1

[0030] An electrical equipment fault detection device, such as Figure 1-4 As shown, it includes a connector 8, one end of which is fixed with a telescopic member 3 by bolts, and the extended end of the telescopic member 3 is fixed with a U-shaped plate 4 by bolts. One end of the U-shaped plate 4 is provided with a detection head structure.

[0031] Preferably, the telescopic component 3 can be one of a cylinder mechanism, an electric telescopic rod mechanism, a screw telescopic structure, etc.

[0032] In a further preferred embodiment, the outer circumferential wall of the connector 8 is provided with multiple grooves 801; after inserting a finger into the corresponding groove 801, the connector 8 is gripped tightly, and the extension length of the telescopic component 3 is adjusted according to the different depths of the underground pipeline, so as to adjust the displacement of the detection head structure to perform fault detection on cables at various locations.

[0033] Furthermore, the detection head structure includes an annular plate 12 with an open side fixed to one side of the U-shaped plate 4 by bolts, and a detection component 11 fixed to the inner side of the annular plate 12 by bolts and electrically connected to the control module. The detection component 11 and the control module realize data transmission through a DTU (Data Transfer Unit) data transmission unit. The prior art is referred to here and will not be described in detail.

[0034] The detection component 11 includes an infrared thermometer for detecting abnormal surface temperature of the cable, a partial discharge sensor for detecting partial discharge signals in the cable insulation layer, and a current sensor for real-time acquisition of cable current data. The partial discharge sensor can be an ultrasonic sensor. In use, the handheld telescopic component 3 allows for flexible control of the detection head structure to approach the cable closely, enabling the detection component 11 to monitor the cable's surface temperature, discharge, and overload conditions. Specifically, if the current sensor detects a small current fluctuation while the partial discharge sensor captures a high-frequency pulse, it can be determined as early discharge of the insulation layer. If an overload is detected, it will cause the cable temperature to rise, thus enabling the detection of the operating status of electrical equipment cables, which is more accurate than manual inspection.

[0035] As a supplement, the outer circumference of the connector 8 is fixed with a display screen 9 electrically connected to the infrared temperature sensor by bolts; the higher the cable temperature, the greater the infrared radiation intensity, and the infrared temperature sensor displays the generated thermal image on the display screen 9 for the operator to view. The principle here is the same as the existing technology and will not be described again.

[0036] Preferably, a lighting lamp 10 is fixed to one side of the U-shaped plate 4 by bolts; in use, the lighting lamp 10 is used to illuminate the area of ​​the cable to be tested so that people can observe the position of the cable and aim and test it through the detection head structure.

[0037] Preferably, the outer circumferential wall of the connector 8 is fixed with a warning light 2 that is electrically connected to the control module by bolts; when a fault is detected at a certain point in the cable, the detection component 11 transmits a signal to the control module so that it can control the warning light 2 to light up and alert people.

[0038] Working principle: After inserting a finger into the corresponding groove 801, the connector 8 is gripped tightly. The extension length of the telescopic component 3 is adjusted according to the different depths of the underground pipeline to adjust the displacement of the detection head structure to get infinitely close to the cable and detect faults. Specifically, if the current sensor detects a small current fluctuation and the partial discharge sensor captures a high-frequency pulse, it can be determined that there is early discharge of the insulation layer. If an overload is detected, it will cause the cable temperature to rise, thus realizing the detection of the operating status of the electrical equipment cable. When a fault is detected at a certain point in the cable, the detection component 11 transmits a signal to the control module so that it can control the warning light 2 to light up.

[0039] Example 2

[0040] An electrical equipment fault detection device, such as Figure 1-3 As shown, in order to drive the displacement of the detection head structure, this embodiment makes the following improvements based on embodiment 1: one end of the connector 8 is connected to a support column 601 through a connecting structure, and a portable moving mechanism is provided on the outer wall of the support column 601.

[0041] Preferably, one end of the support column 601 is bolted with a handle 6 for easy handholding by the operator;

[0042] Furthermore, the connection structure includes a threaded head 802 welded to one end of the connector 8 and a threaded hole 602 opened at one end of the support column 601 and adapted to the threaded head 802; the connector 8 is screwed into the threaded hole 602 on the support column 601 through the threaded head 802, thereby connecting the support column 601 and the telescopic component 3 into one unit, which is easy to disassemble and assemble, and the detection head structure can be selectively used according to the actual layout of underground cables.

[0043] Furthermore, the portable mobile mechanism includes a mounting base 1, a support 5 fixed to the top surface of the mounting base 1 by bolts, a support leg 7 fixed to the bottom surface of the mounting base 1 by bolts, and a universal wheel 701 rotatably connected to the bottom end of the support leg 7; pushing the mounting base 1 to drive the displacement of the detection head structure can effectively save manpower for handling and changing detection points, and is convenient to use.

[0044] Preferably, the outer wall of the support column 601 is rotatably connected to one side of the support 5 via a pivot; when the telescopic component 3 is integrated with the support column 601 for use, the handle 6 can be held to adjust the tilt of the detection head structure upward or downward, saving manual holding force and making adjustment convenient.

[0045] Working principle: The connector 8 is screwed into the threaded hole 602 on the support 601 through the threaded head 802, thus connecting the support 601 and the telescopic component 3 as one unit. By holding the handle 6, the tilt of the detection head structure can be adjusted upwards or downwards, saving manual handling effort. Pushing the mounting base 1 moves the detection head structure, effectively saving manpower for handling and changing detection points. Then, the extension length of the telescopic component 3 is adjusted according to the different depths of the underground pipeline, so that the displacement of the detection head structure can be adjusted to be infinitely close to the cable for fault detection. Specifically, if the current sensor detects a small current fluctuation and the partial discharge sensor captures a high-frequency pulse, it can be determined that there is early discharge of the insulation layer. If an overload is detected, it will cause the cable temperature to rise, thus realizing the detection of the operating status of the electrical equipment cable. When a fault is detected at a certain point in the cable, the detection component 11 transmits a signal to the control module so that it can control the warning light 2 to light up.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electrical equipment fault detection device comprising a connection head (8), characterised in that, One end of the connecting head (8) is fixedly connected with a telescopic piece (3), the extension end of the telescopic piece (3) is fixedly connected with a U-shaped plate (4), one end of the U-shaped plate (4) is provided with a detection head structure. One end of the connecting head (8) is connected with a support (601) through a connecting structure, the outer wall of the support (601) is provided with a portable moving mechanism.

2. An electrical apparatus fault detection device according to claim 1, wherein, The detection head structure comprises an annular plate (12) fixedly connected to one side of the U-shaped plate (4) in an open shape, and a detection assembly (11) fixedly connected to the inner side of the annular plate (12).

3. An electrical apparatus fault detection device according to claim 2, wherein, The detection assembly (11) comprises an infrared temperature sensor, a partial discharge sensor and a current sensor, and the partial discharge sensor can be an ultrasonic sensor. The circumferential outer wall of the connecting head (8) is fixedly connected with a display screen (9).

4. An electrical apparatus fault detection device according to claim 3, wherein, The circumferential outer wall of the connecting head (8) is fixedly connected with a warning light (2).

5. The apparatus of claim 1, wherein, The circumferential outer wall of the connecting head (8) is provided with a groove (801).

6. An electrical apparatus fault detection device according to claim 1, wherein, One side of the U-shaped plate (4) is fixedly connected with an illuminating lamp (10).

7. The apparatus of claim 1, wherein the processor is further configured to: The connecting structure comprises a threaded head (802) fixedly connected to one end of the connecting head (8), and a threaded hole (602) provided at one end of the support (601) and matched with the threaded head (802).

8. An electrical apparatus fault detection device according to claim 7, wherein, The portable moving mechanism comprises a mounting seat (1), a support (5) fixedly connected to the top surface of the mounting seat (1), a supporting leg (7) fixedly connected to the bottom surface of the mounting seat (1), and a universal wheel (701) rotationally connected to the bottom end of the supporting leg (7). The outer wall of the support (601) is rotationally connected to one side of the support (5) through a rotating shaft. One end of the support (601) is fixedly connected with a handle (6).

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