High-insulation telescopic partial discharge detection rod

Abstract

The utility model relates to the technical field of electrical equipment detection, in particular to a high-insulation telescopic partial discharge detection rod, which comprises a partial discharge detection host, and a bottom rod, a connecting rod and a top rod which are sequentially connected to the top of the partial discharge detection host. According to the utility model, the first metal inner rod and the metal connecting column in the bottom rod are convenient to connect with a partial discharge detection host and transmit signals, and the first movable groove is matched with the telescopic guide block of the connecting rod to realize telescopic connection; conduction is achieved through a second metal inner rod in the arranged connecting rod, and a second movable groove is matched with a movable block of the ejector rod to achieve telescopic connection; a replaceable partial discharge detection head can be conveniently installed through a third metal inner rod arranged in a top rod, insulation is guaranteed through a first insulation sleeve, a second insulation sleeve and a third insulation sleeve, and a movable block is matched with a second movable groove to achieve telescopic connection, so that the high-insulation telescopic partial discharge detection rod can achieve flexible telescoping while the insulation performance is guaranteed, and the reliability of the detection rod is improved. The operation and the use are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power equipment detection, specifically to the telescopic partial discharge detection rod of high insulation. BACKGROUND

[0002] With the development of power system, partial discharge (PD) detection has become an important means to ensure the safe operation of power equipment. As one of the key equipment for PD detection, the performance of the PD detection rod directly affects the accuracy and efficiency of the detection. In recent years, with the continuous progress of technology, high-insulation telescopic PD detection rods have emerged as the times require, providing a more reliable and convenient tool for the safety monitoring of power equipment. Many existing PD detection rods are not flexible enough in length adjustment, and the traditional detection rods are often cumbersome to operate when replacing the detection head, which is not convenient for users to quickly and accurately complete the detection task. When different types of detection heads need to be replaced to adapt to different detection scenarios, a lot of time and effort is wasted, reducing the detection efficiency. SUMMARY

[0003] The utility model aims at providing telescopic partial discharge detection rod of high insulation to solve the problem of inconvenient length adjustment and complex detection head replacement in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] Telescopic partial discharge detection rod of high insulation, including partial discharge detection host computer and the bottom rod, connecting rod and top rod that connect to the top of partial discharge detection host computer in turn, the top of top rod installs the replaceable partial discharge detection head;

[0006] The bottom rod includes a first metal inner rod, a metal connecting column connected with the partial discharge detection host computer is coaxially installed at the bottom of the first metal inner rod, a first insulating sleeve is arranged on the outer wall of the first metal inner rod, and a first movable groove is formed in the first metal inner rod;

[0007] The connecting rod includes a second metal inner rod, a telescopic guide block with a cross-sectional size matched with the first movable groove and an interference sliding is coaxially connected to the bottom of the second metal inner rod, a second insulating sleeve is arranged on the outer wall of the second metal inner rod, and a second movable groove is formed in the second metal inner rod;

[0008] The top rod includes a third metal inner rod and a third insulating sleeve, and the bottom of the third metal inner rod is coaxially connected with a movable block with a cross-sectional size matched with the second movable groove and an interference sliding.

[0009] As a preferred, the first insulating sleeve, the second insulating sleeve and the third insulating sleeve all adopt high-insulation silicone rubber sleeve, and the thickness is 2-4mm.

[0010] As preferred, the bottom of the replaceable partial discharge detection head is connected with a metal screw rod which is screwed with the top of the third metal inner rod.

[0011] As preferred, the surface of the partial discharge detection host is embedded with a display screen.

[0012] As preferred, the outer wall of the partial discharge detection host is provided with an insulating shell.

[0013] As preferred, the insulating shell adopts a high-insulation PP shell with a thickness of 3-5mm.

[0014] As preferred, the bottom of the partial discharge detection host is connected with an insulating handle.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] 1. In the telescopic partial discharge detection rod with high insulation, the first metal inner rod and the metal connecting column in the bottom rod are convenient for connection with the partial discharge detection host and signal conduction, the first insulating sleeve guarantees insulation performance, the first movable slot and the telescopic guide block of the connecting rod are matched to realize telescopic connection; the second metal inner rod in the connecting rod realizes conduction, the second insulating sleeve guarantees insulation, the second movable slot and the movable block of the top rod are matched to realize telescopic connection; the third metal inner rod in the top rod is convenient for installation of the replaceable partial discharge detection head, the third insulating sleeve guarantees insulation, and the movable block and the second movable slot are matched to realize telescopic connection, so that the telescopic partial discharge detection rod with high insulation can realize flexible telescoping while guaranteeing insulation performance, and is convenient for operation and use.

[0017] 2. In the telescopic partial discharge detection rod with high insulation, the first insulating sleeve, the second insulating sleeve and the third insulating sleeve all adopt high-insulation silicone rubber sleeves, so that a firm insulating barrier is formed outside the conductive metal inner rod, not only the safety of the detection rod in the use process is significantly improved, equipment damage or personnel injury caused by accidental electric shock is avoided, but also the accuracy and stability of partial discharge detection are ensured, and the influence of external electromagnetic interference on the detection result is reduced due to the existence of the insulating layer.

[0018] 3. In the telescopic partial discharge detection rod with high insulation, the bottom of the replaceable partial discharge detection head is connected with a metal screw rod which is screwed with the top of the third metal inner rod, so that users can quickly replace different detection heads to adapt to different detection requirements when needed, and the electrical connection stability and mechanical strength between the detection head and the metal inner rod are also ensured, so that the reliability and durability of the whole detection system are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to make further detailed explanation together with embodiments of the present application, but do not constitute limitation to the present application.

[0020] Fig. 1 It is a structural schematic view of the present application;

[0021] Fig. 2 It is a sectional structural schematic view of the present application;

[0022] Fig. 3 It is a sectional structural schematic view of the present application after storage;

[0023] 10, bottom rod; 11, first metal inner rod; 12, first insulating sleeve; 13, first movable slot; 14, metal connecting column;

[0024] 20, connecting rod; 21, second metal inner rod; 22, second insulating sleeve; 23, telescopic guide block; 24, second movable slot;

[0025] 30, top rod; 31, third metal inner rod; 32, third insulating sleeve; 33, movable block;

[0026] 40, replaceable partial discharge detection head; 41, metal screw rod;

[0027] 50, partial discharge detection host; 51, display screen; 52, insulating shell;

[0028] 60, insulating handle. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application and the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] In the description of the present application, it should be understood that the orientations or position relationships indicated by the terms "center", "vertical", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the orientations or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application.

[0031] The high-insulation telescopic partial discharge detection rod, such as Figs. 1-3 As shown, it comprises a partial discharge detection host 50 and a bottom rod 10, a connecting rod 20 and a top rod 30 connected in turn on the top of the partial discharge detection host 50, and a replaceable partial discharge detection head 40 is installed on the top of the top rod 30; the bottom rod 10 comprises a first metal inner rod 11, a metal connecting column 14 connected with the partial discharge detection host 50 is coaxially installed on the bottom of the first metal inner rod 11, a first insulating sleeve 12 is arranged on the outer wall of the first metal inner rod 11, and a first movable slot 13 is opened in the first metal inner rod 11; the connecting rod 20 comprises a second metal inner rod 21, an extension guide block 23 with a cross-sectional size matching that of the first movable slot 13 and in interference sliding is coaxially connected on the bottom of the second metal inner rod 21, a second insulating sleeve 22 is arranged on the outer wall of the second metal inner rod 21, and a second movable slot 24 is opened in the second metal inner rod 21; the top rod 30 comprises a third metal inner rod 31 and a third insulating sleeve 32, a movable block 33 with a cross-sectional size matching that of the second movable slot 24 and in interference sliding is coaxially connected on the bottom of the third metal inner rod 31, the first metal inner rod 11 and the metal connecting column 14 in the bottom rod 10 are arranged to facilitate the connection with the partial discharge detection host 50 and the conduction of signals, the first insulating sleeve 12 ensures the insulation performance, and the first movable slot 13 is matched with the extension guide block 23 of the connecting rod 20 to realize telescopic connection; the second metal inner rod 21 in the connecting rod 20 is arranged to realize conduction, the second insulating sleeve 22 ensures insulation, and the second movable slot 24 is matched with the movable block 33 of the top rod 30 to realize telescopic connection; the third metal inner rod 31 in the top rod 30 is arranged to facilitate the installation of the replaceable partial discharge detection head 40, the third insulating sleeve 32 ensures insulation, and the movable block 33 is matched with the second movable slot 24 to realize telescopic connection, so that the high-insulation telescopic partial discharge detection rod can realize flexible telescoping while ensuring insulation performance, facilitating operation and use.

[0032] It is worth noting that the first insulating sleeve 12, the second insulating sleeve 22 and the third insulating sleeve 32 all adopt high-insulation silicone rubber sleeves with a thickness of 2-4mm, so that a solid insulating barrier is formed on the outside of the conductive metal inner rod, not only significantly improving the safety of the detection rod during use, avoiding equipment damage or personal injury caused by accidental electric shock, but also ensuring the accuracy and stability of partial discharge detection, because the existence of the insulating layer reduces the influence of external electromagnetic interference on the detection results.

[0033] Further, the bottom of the replaceable partial discharge detection head 40 is connected with a metal screw rod 41 threadedly connected with the top of the third metal inner rod 31, so as to facilitate users to quickly replace different detection heads when needed to adapt to different detection needs, and also to ensure the electrical connection stability and mechanical strength between the detection head and the metal inner rod, thereby improving the reliability and durability of the entire detection system.

[0034] The surface of the partial discharge detection host 50 is embedded with a display screen 51, so that the user can intuitively view the real-time data and results of the partial discharge detection, improve the convenience and intuitiveness of the detection, enable the user to quickly understand the partial discharge condition of the measured equipment, and thus take necessary maintenance measures in a timely manner to ensure the safe operation of the equipment.

[0035] Specifically, the outer wall of the partial discharge detection host 50 is provided with an insulating shell 52, which is made of a high-insulation PP shell with a thickness of 3-5 mm, fully protecting the partial discharge detection host 50. The PP shell not only has excellent insulation performance, which can effectively prevent equipment damage or personal injury caused by electric shock, but also has certain impact resistance and wear resistance, improving the durability and service life of the detection host.

[0036] In addition, the bottom of the partial discharge detection host 50 is connected with an insulating handle 60, so that the operator can avoid the risk of electric shock when holding the detection host, ensuring safe operation and facilitating operation. The material and shape design of the insulating handle 60 also fully considers the ergonomic principle, so that the user can reduce fatigue when operating for a long time.

[0037] The working principle of the telescopic partial discharge detection rod with high insulation is as follows:

[0038] First, the operator holds the insulating handle 60 and picks up the partial discharge detection host 50; the working state of the host is checked through the display screen 51 embedded on the surface of the partial discharge detection host 50 to ensure normal operation; the safety during operation is ensured by the high-insulation PP shell 52 with a thickness of 3-5 mm on the outer wall of the partial discharge detection host 50;

[0039] Then, according to the detection requirements, select the appropriate replaceable partial discharge detection head 40, and screw it to the top of the third metal inner rod 31 of the top rod 30 through the metal screw rod 41 at the bottom; the third insulating sleeve 32 of the top rod 30 ensures the insulation performance, and the movable block 33 at the bottom is matched with the second movable slot 24 of the connecting rod 20 to ensure stable connection;

[0040] Next, according to the detection height requirement, the length of the detection rod is adjusted by sliding the telescopic guide block 23 of the connecting rod 20 in the first movable slot 13 of the bottom rod 10, and the telescopic connection of the top rod 30 and the connecting rod 20; the first metal inner rod 11 and the metal connecting column 14 of the bottom rod 10 ensure signal conduction, and the first insulating sleeve 12 ensures insulation;

[0041] Finally, the replaceable partial discharge detection head 40 is placed close to the equipment to be measured, and the partial discharge detection is performed through the partial discharge detection host 50. The operator reads the detection data through the display screen 51.

[0042] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A retractable partial discharge detection probe with high insulation, characterized in that: Including local place detects host (50) and the bottom bar (10) that connects in turn on local place detects host (50) top, connecting rod (20) and top bar (30), the top of top bar (30) is installed with the replaceable local place detection head (40); The bottom bar (10) includes a first metal inner rod (11), a metal connecting column (14) connected with the local place detection host (50) is coaxially installed at the bottom of the first metal inner rod (11), a first insulating sleeve (12) is arranged on the outer wall of the first metal inner rod (11), and a first movable groove (13) is formed in the first metal inner rod (11); The connecting rod (20) includes a second metal inner rod (21), the second metal inner rod (21) is coaxially connected with a telescopic guide block (23) that is matched with the cross-sectional size of the first movable groove (13) and is in interference sliding at the bottom, a second insulating sleeve (22) is arranged on the outer wall of the second metal inner rod (21), and a second movable groove (24) is formed in the second metal inner rod (21); The top bar (30) includes a third metal inner rod (31) and a third insulating sleeve (32), the third metal inner rod (31) is coaxially connected with a movable block (33) that is matched with the cross-sectional size of the second movable groove (24) and is in interference sliding at the bottom.

2. The highly insulative, retractable PD detection pole of claim 1, wherein: The first insulating sleeve (12), the second insulating sleeve (22) and the third insulating sleeve (32) are all made of high-insulation silicone rubber sleeve with a thickness of 2-4mm.

3. The highly insulative, retractable PD detection pole of claim 1, wherein: The bottom of the replaceable local place detection head (40) is connected with a metal screw rod (41) that is threadedly connected with the top of the third metal inner rod (31).

4. The highly insulative, retractable PD detection pole of claim 1, wherein: The surface of the local place detection host (50) is embedded with a display screen (51).

5. The highly insulative, retractable PD detection pole of claim 1, wherein: An insulating shell (52) is arranged on the outer wall of the local place detection host (50).

6. The highly insulative, retractable PD detection pole of claim 5, wherein: The insulating shell (52) is made of high-insulation PP shell with a thickness of 3-5mm.

7. The highly insulative, retractable PD detection pole of claim 1, wherein: The bottom of the local place detection host (50) is connected with an insulating handle (60).

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