A handheld partial discharge detector with protective cover
By designing a handheld partial discharge detector with a protective cover and a rotating connector, the problems of bulkiness and poor environmental adaptability of traditional equipment have been solved, achieving efficient and stable outdoor testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU DEAN ELECTRIC POWER TESTING CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional partial discharge detection equipment is large or bulky, making it difficult to meet diverse outdoor detection needs, and is easily affected by environmental factors, leading to a decrease in detection accuracy and stability.
A handheld partial discharge detector with a protective cover was designed. The protective cover with sliding connection and the rotating connection port structure protect the instrument from dust, moisture and sand, ensuring that the instrument can work normally in harsh environments.
It improves the stability and reliability of the instrument, simplifies the operation process, ensures detection accuracy and flexibility, and adapts to complex outdoor environments.
Smart Images

Figure CN224553402U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the field of handheld partial discharge detectors, and more specifically to a handheld partial discharge detector with a protective cover. Background Technology
[0002] In the field of power system operation and maintenance, partial discharge detection plays a crucial role in ensuring the safe and stable operation of power equipment. With the widespread distribution of power infrastructure, including substations and underground cable networks in cities, as well as transmission lines and power generation facilities in remote areas, the demand for timely, efficient, and accurate partial discharge detection of power equipment is increasing.
[0003] Traditional partial discharge detection equipment is mostly large, fixed, or rather bulky portable instruments. Fixed instruments are often installed at specific testing sites, making it difficult to meet the needs of on-site testing of widely distributed and diverse power equipment. Bulky portable instruments pose many inconveniences when used outdoors; their size and weight place a significant burden on testing personnel, especially when long-distance travel or operation in complex terrain environments, severely impacting the efficiency and flexibility of the testing work.
[0004] Outdoor environmental conditions are complex and variable, presenting numerous adverse factors that threaten testing instruments. For example, rainwater, dew, and dust may penetrate the instrument, causing problems such as short circuits, corrosion, or poor contact, thereby affecting the instrument's normal performance and testing accuracy. Simultaneously, strong sunlight, temperature variations, humidity fluctuations, and electromagnetic interference can also negatively impact the instrument's stability and reliability. Utility Model Content
[0005] The purpose of this utility model is to provide a handheld partial discharge detector with a protective cover. By installing the protective cover body and the push button to the detector body, the stability and reliability of the handheld partial discharge detector are improved, thereby solving the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A handheld partial discharge detector with a protective cover, including The detector body has one end slidably connected to the protective cover body, and the other end is equipped with a push button; The protective cover body includes a protective cover, with second sliders on both sides of the protective cover and a slot at the top. The slot is slidably connected to the slide rails on both sides of the detector housing.
[0007] As a further technical solution of this utility model, the detector housing is provided with grip blocks and multiple trapezoidal blocks arranged in a regular pattern on both sides, and a display screen is provided on the front side; three housing springs are embedded in the upper end of the detector housing, and the outer side of the housing springs is connected to the locking block.
[0008] As a further technical solution of this utility model, the top of the detector housing is provided with three connection ports, and a gasket is provided at the upper end of the connection port. The gasket is slidably connected to the first slider at the upper end. The first slider is provided with the bottom of a triangular plate. Multiple triangular plates are arranged in a ring shape, and a sliding column is provided on the upper surface of the triangular plate. The sliding column is connected to the rotating plate at the upper end, and a knob is provided on the outer side of the rotating plate.
[0009] As a further technical solution of this utility model, the upper two sides of the detector housing are connected to the connecting plate, and the connecting plate is provided with three button springs inside. The inner side of the button spring is provided with a pressing post, and the upper end of the pressing post is provided with a baffle.
[0010] As a further technical solution of this utility model, the upper end of the baffle is connected to the pressing plate, the upper ends of the three pressing plates are connected to the connecting column, and the upper end of the connecting column is provided with a button.
[0011] Compared with the prior art, the beneficial effects of this utility model are: In use, the protective cover is first moved to the end of the slide rail via the sliding connection of the second slider and the slide rail. The protective cover then presses against the locking block. The bottom of the locking block is equipped with a shell spring. After the locking block is pressed down, it connects with the spring-back locking block through the locking groove at the upper end of the protective cover. The locking block closes and fixes the protective cover in a fixed position. The protective cover can effectively protect the instrument's display screen from dust, moisture, sand and other impurities when the instrument is not in use or when it is moved in harsh environments, ensuring that the instrument can maintain good working condition in various outdoor environments. In this invention, when the connector needs to connect a wire harness, rotating the knob drives the rotating plate to rotate. The rotating plate connects to the sliding post on the triangular plate, which in turn drives the triangular plate to slide through the first slider and the bottom pad. Multiple triangular plates rotate outward to connect the wire harness. Conversely, when the wire harness does not need to be connected, rotating the knob in the opposite direction closes the connector. This effectively prevents rainwater, dew, sand, and other impurities from entering the interface, avoiding problems such as rusting or corrosion of the connector due to contact with moisture, or poor contact due to sand and dust. It ensures the cleanliness and dryness of the connector and maintains the normal operation of the instrument. When the instrument needs to be used, first press the button. The button moves the connecting column downward, and the three pressing plates at the lower end of the connecting column move downward at the same time. The pressing plates move the pressing column downward, and when the pressing column moves downward, it squeezes the locking block, causing the locking block to move downward. The locking slot and the locking block are then disengaged, and the protective cover can be slid out for testing. The method of use is simple and convenient. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This utility model Figure 1 Top view.
[0014] Figure 3 This utility model Figure 1 A bottom view.
[0015] Figure 4 This utility model Figure 1 Front view.
[0016] Figure 5 This utility model Figure 4 AA sectional view.
[0017] Figure 6 This utility model Figure 2 A schematic diagram of the split structure.
[0018] Figure 7 This utility model Figure 6 A magnified view of a portion of the image.
[0019] In the diagram: 1-Detector body, 2-Protective cover body, 3-Press button; 11-Detector housing, 12-Holding block, 13-Trapezoidal block, 14-Slide rail, 15-Housing spring, 16-Clamping block, 17-Connecting port, 18-Shim, 19-First slider, 110-Triangle plate, 111-Sliding column, 112-Rotating plate, 113-Knob, 114-Display screen; 21-Protective cover, 22-Second slider, 23-Slot; 31-Connecting plate, 32-Button spring, 33-Pressing post, 34-Baffle, 35-Pressing plate, 36-Connecting post, 37-Button. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-7 In this embodiment of the present invention, a handheld partial discharge detector with a protective cover includes a detector body 1, one end of which is slidably connected to a protective cover body 2, and the other end is provided with a push button 3. The protective cover body 2 includes a protective cover 21, with second sliders 22 on both sides of the protective cover 21 and a slot 23 at the upper end. The slot 23 is slidably connected to the slide rails 14 on both sides of the detector housing 11. The detector housing 11 is also provided with gripping blocks 12 and multiple trapezoidal blocks 13 arranged in a regular pattern on both sides. Three housing springs 15 are embedded in the upper end of the detector housing 11, and the outer side of the housing springs 15 is connected to the locking block 16.
[0022] By adopting the above technical solution, when in use, the protective cover 21 is first moved to the end of the slide rail 14 through the sliding connection between the second slider 22 and the slide rail 14. The protective cover 21 presses against the locking block 16. The bottom of the locking block 16 is provided with a housing spring 15. After the locking block 16 is pressed down, it is connected to the spring-back locking block 16 through the locking groove 23 at the upper end of the protective cover 21. The locking block 16 plays the role of closing and fixing the protective cover 21. The protective cover 21 can effectively protect the instrument's display screen 114 from dust, moisture, sand and other impurities when the instrument is not in use or when it is moved in harsh environments, ensuring that the instrument can maintain a good working condition in various outdoor environments.
[0023] In this embodiment, the top of the detector housing 11 is provided with three connection ports 17, and the upper end of the connection port 17 is provided with a gasket 18. The gasket 18 is slidably connected to the upper first slider 19. The first slider 19 is provided with the bottom of a triangular plate 110. Multiple triangular plates 110 are arranged in a ring shape, and the upper surface of the triangular plate 110 is provided with a sliding post 111. The sliding post 111 is connected to the upper rotating plate 112, and the outer side of the rotating plate 112 is provided with a knob 113.
[0024] By adopting the above technical solution, when the connection port 17 needs to connect the wire harness, rotating the knob 113 drives the rotating plate 112 to rotate. The rotating plate 112 is connected to the sliding post 111 on the triangular plate 110. The triangular plate 110 is driven to slide through the first slider 19 and the bottom pad 18. Multiple triangular plates 110 rotate outward to connect the wire harness. Conversely, when the wire harness 17 does not need to connect the wire harness, rotating the knob 113 in the opposite direction will close the connection port 17. This can effectively prevent rainwater, dew, sand and dust from entering the interface, avoid the connection port 17 from rusting or corroding due to contact with water, or poor contact due to sand and dust, and ensure the cleanliness and dryness of the connection port 17, maintaining the normal operation of the instrument.
[0025] In this embodiment, the upper two sides of the detector housing 11 are connected to the connecting plate 31. The connecting plate 31 is provided with three button springs 32 inside. The inner side of the button springs 32 is provided with pressing posts 33, and the upper end of the pressing posts 33 is provided with baffles 34. The upper end of the baffle 34 is connected to the pressing plate 35, and the upper ends of the three pressing plates 35 are connected to the connecting post 36. The upper end of the connecting post 36 is provided with a button 37.
[0026] By adopting the above technical solution, when the instrument needs to be used, first press the button 37. The button 37 drives the connecting column 36 to move downward. The three pressing plates 35 at the lower end of the connecting column 36 move downward at the same time. The pressing plates 35 drive the pressing column 33 to move downward. When the pressing column 33 moves downward, it squeezes the locking block 16, causing the locking block 16 to move downward. The locking groove 23 is disengaged from the locking block 16, and the protective cover 21 can be slid out for testing. The method of use is simple and convenient.
[0027] The working principle of this utility model is as follows: When in use, the protective cover 21 is first moved to the end of the slide rail 14 through the sliding connection between the second slider 22 and the slide rail 14. The protective cover 21 presses against the locking block 16. The bottom of the locking block 16 is provided with a shell spring 15. After the locking block 16 is pressed down, it is connected to the spring-back locking block 16 through the locking groove 23 at the upper end of the protective cover 21. The locking block 16 plays the role of closing and fixing the protective cover 21. The protective cover 21 can effectively protect the instrument's display screen 114 from dust, moisture, sand and other impurities when the instrument is not in use or when it is moved in harsh environments, ensuring that the instrument can maintain a good working condition in various outdoor environments. When the connector 17 needs to connect a wire harness, rotating the knob 113 drives the rotating plate 112 to rotate. The rotating plate 112 is connected to the sliding post 111 on the triangular plate 110. The triangular plate 110 is driven to slide through the first slider 19 and the bottom pad 18. Multiple triangular plates 110 rotate outward to connect the wire harness. Conversely, when the wire harness 17 does not need to connect a wire harness, rotating the knob 113 in the opposite direction will close the connector 17. This effectively prevents rainwater, dew, sand and dust from entering the interface, avoiding problems such as rust and corrosion of the connector 17 due to contact with water, or poor contact due to sand and dust. This ensures the cleanliness and dryness of the connector 17 and maintains the normal operation of the instrument. When the instrument is needed, first press button 37. Button 37 moves the connecting column 36 downward. The three pressing plates 35 at the lower end of the connecting column 36 move downward at the same time. The pressing plates 35 move the pressing column 33 downward. When the pressing column 33 moves downward, it squeezes the locking block 16, causing the locking block 16 to move downward. The locking slot 23 is disengaged from the locking block 16, and the protective cover 21 can be slid out for testing. The method of use is simple and convenient.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A handheld partial discharge detector with a protective cover, characterized in that: include The detector body (1) has one end slidably connected to the protective cover body (2), and the other end is provided with a push button (3). The protective cover body (2) includes a protective cover (21), with second sliders (22) on both sides of the protective cover (21) and a slot (23) on the upper end. The slot (23) is slidably connected to the slide rails (14) on both sides of the detector housing (11).
2. The handheld partial discharge detector with a protective cover according to claim 1, characterized in that: The detector housing (11) is also provided with gripping blocks (12) and multiple trapezoidal blocks (13) arranged in a regular pattern on both sides. Three housing springs (15) are embedded in the upper end of the detector housing (11). The outer side of the housing springs (15) is connected to the locking block (16).
3. The handheld partial discharge detector with a protective cover according to claim 2, characterized in that: The top of the detector housing (11) is provided with three connection ports (17). A gasket (18) is provided at the upper end of the connection port (17). The gasket (18) is slidably connected to the first slider (19) at the upper end. The first slider (19) is provided with the bottom of a triangular plate (110). Multiple triangular plates (110) are arranged in a ring shape. A sliding column (111) is provided on the upper surface of the triangular plate (110). The sliding column (111) is connected to the rotating plate (112) at the upper end. A knob (113) is provided on the outer side of the rotating plate (112).
4. The handheld partial discharge detector with a protective cover according to claim 3, characterized in that: The upper sides of the detector housing (11) are connected to the connecting plate (31). The connecting plate (31) is equipped with three button springs (32). The inner side of the button springs (32) is equipped with a pressing post (33). The upper end of the pressing post (33) is equipped with a baffle (34).
5. The handheld partial discharge detector with a protective cover according to claim 4, characterized in that: The upper end of the baffle (34) is connected to the pressing plate (35), and the upper ends of the three pressing plates (35) are connected to the connecting post (36). The upper end of the connecting post (36) is provided with a button (37).