Insulation test rod

Abstract

The utility model relates to an insulation test rod. The technical problem to be solved by the utility model is to provide an insulation test rod. According to the technical scheme, the metal test rod comprises an insulating shell, a metal test rod and a test rod connecting seat, the insulating shell comprises a shell butt joint part, a shell lifting part and a shell extending part, a shell inner hole is formed in the shell extending part, a conical butt joint groove is formed in the bottom of the shell butt joint part, and the metal test rod is connected with the conical butt joint groove. The test rod connecting seat comprises a connecting seat main body, a connecting seat end blocking part and a connecting seat conical part, the connecting seat conical part is arranged in the conical butt joint groove, and the connecting seat end blocking part abuts against the end part of the shell butt joint part. The utility model has the advantages that the metal test rod and the insulating shell are integrally formed by injection molding, so that the mechanical strength of the test rod is ensured, the test rod can be effectively prevented from loosening or displacing in the insulating shell due to pressure or impact, the overall rigidity is enhanced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of high voltage electrical technology, specifically to an insulation test rod. Background Technology

[0002] Insulation test bars are mainly used for the operation and testing of high-voltage electrical equipment, maintaining a safe distance from live parts during operation to prevent electric shock. Existing test bars are subject to pressure and impact during frequent testing, making them prone to loosening or displacement. Furthermore, the connection between the test bar and its connector is susceptible to vibration and impact, leading to loosening or displacement at the connection point. This significantly compromises the safety and reliability of the testing process. Therefore, improvements and optimizations are proposed to address these issues. Utility Model Content

[0003] To address the aforementioned problems, the present invention aims to provide an insulation test rod.

[0004] The technical solution adopted by this utility model of an insulating test rod is characterized by comprising an insulating shell, a metal test rod, and a test rod connecting seat. The insulating shell includes a shell mating part, a shell raising part, and a shell extension part. The shell extension part has an inner hole for the metal test rod to pass through. The bottom of the shell mating part has a conical mating groove communicating with the inner hole of the shell. The test rod connecting seat includes a connecting seat body, a connecting seat end stop, and a connecting seat conical part arranged in sequence. The connecting seat conical part is placed in the conical mating groove. The connecting seat end stop abuts against the end of the shell mating part. A copper stud is integrally injection molded inside the test rod connecting seat. The copper stud has a copper stud threaded hole that is threadedly connected to the end of the metal test rod.

[0005] It also includes a locking nut, the outer wall of the housing mating part is provided with a housing external thread that is threaded to the locking nut, the outer wall of the connecting seat end stop is provided with a connecting seat external thread that is threaded to the locking nut, the outer diameter of the housing mating part is the same as the outer diameter of the connecting seat end stop, and the locking nut connects the housing mating part and the connecting seat end stop together.

[0006] The metal test rod and the insulating shell are integrally injection molded.

[0007] The outer wall of the metal test rod is provided with test rod reinforcing protrusions at intervals, and the inner wall of the inner hole of the housing is provided with a housing inner limiting groove corresponding to the test rod reinforcing protrusions.

[0008] The main body of the connector includes a connector handle and a connector mounting part. The outer diameter of the connector mounting part is larger than the outer diameter of the connector end stop. The connector mounting part is used for travel limit when the lock nut is tightened.

[0009] The mounting part of the connector is a regular hexagonal structure.

[0010] The advantages of this utility model of insulating test rod are as follows: the metal test rod and the insulating shell are integrally injection molded, which ensures the mechanical strength of the test rod and effectively prevents the test rod from loosening or displacing due to pressure or impact within the insulating shell, thereby enhancing the overall rigidity and extending the service life. It is especially suitable for high-frequency testing requirements under high-voltage environments. The test rod connecting seat is threaded to both the metal test rod and the insulating shell, with a double locking mechanism that can resist the risk of loosening caused by vibration or impact and facilitates subsequent maintenance. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a schematic diagram of the structure of the insulation test rod of this utility model;

[0013] Figure 2 This is a half-sectional view of the insulation test rod of this utility model;

[0014] Figure 3 This is a half-sectional view of the insulating shell of this utility model;

[0015] Figure 4 This is a half-sectional view of the test rod connector of this utility model;

[0016] Figure 5 This is a half-sectional view of the metal test rod of this utility model. Detailed Implementation

[0017] like Figure 1-5As shown, the insulating test rod of this utility model includes an insulating shell 1, a metal test rod 2, a test rod connecting seat 3, and a locking nut 4. The insulating shell 1 includes a shell mating part 6, a shell raising part 7, and a shell extension part 8. The shell extension part 8 has a shell inner hole 9 for the metal test rod 2 to pass through. The bottom of the shell mating part 6 has a conical mating groove 10 communicating with the shell inner hole 9. The test rod connecting seat 3 includes a connecting seat body 17, a connecting seat end stop 13, and a connecting seat conical part 14 arranged sequentially. The connecting seat conical part 14 is placed in the conical mating groove 10, and the connecting seat end stop 13 abuts against the shell mating part 6. At the end, a copper stud 15 is integrally injection molded inside the test rod connector 3. The copper stud 15 has a copper stud threaded hole 16 that is threaded to the end of the metal test rod 2. The outer wall of the housing mating part 6 has a housing external thread 19 that is threaded to the locking nut 4. The outer wall of the connector end stop 13 has a connector external thread 20 that is threaded to the locking nut 4. The outer diameter of the housing mating part 6 is the same as the outer diameter of the connector end stop 13. The locking nut 4 connects the housing mating part 6 and the connector end stop 13 together. The mechanical locking force acts directly on the connection, resisting the risk of loosening caused by vibration or impact and making installation and disassembly convenient.

[0018] The metal test rod 2 and the insulating shell 1 are integrally injection molded, eliminating the assembly gap of the traditional split structure, preventing the test rod from loosening or shifting due to pressure or impact within the shell, enhancing overall rigidity, and extending service life. It is especially suitable for high-frequency testing requirements under high-voltage environments.

[0019] The outer wall of the metal test rod 2 is provided with test rod reinforcing protrusions 22 at intervals, and the inner wall of the inner hole 9 of the housing is provided with a housing limiting groove 23 corresponding to the test rod reinforcing protrusions 22, which further enhances the tightness of the connection between the metal test rod 2 and the insulating housing 1. The test rod reinforcing protrusions 22 are designed to disperse stress and reduce housing wear.

[0020] The main body 17 of the connector includes a connector handle 11 and a connector mounting part 12. The outer diameter of the connector mounting part 12 is larger than the outer diameter of the connector end stop 13. The connector mounting part 12 is used to limit the stroke when the locking nut 4 is tightened, so as to avoid the locking nut being over-tightened and causing damage to the housing or connector.

[0021] The mounting part 12 of the connecting seat has a regular hexagonal structure, which improves the convenience of operation and is compatible with standard wrench tools.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. An insulation test rod characterized by: The device includes an insulating housing (1), a metal test rod (2), and a test rod connector (3). The insulating housing (1) includes a housing mating part (6), a housing raising part (7), and a housing extension part (8). The housing extension part (8) has a housing inner hole (9) for the metal test rod (2) to pass through. The bottom of the housing mating part (6) has a conical mating groove (10) communicating with the housing inner hole (9). The test rod connector (3) includes a connector body (17), a connector end stop (13), and a connector conical part (14) arranged in sequence. The connector conical part (14) is placed in the conical mating groove (10). The connector end stop (13) abuts against the end of the housing mating part (6). A copper stud (15) is integrally injection molded in the test rod connector (3). The copper stud (15) has a copper stud thread hole (16) that is threaded to the end of the metal test rod (2).

2. The insulation test rod of claim 1, wherein: It also includes a locking nut (4), the outer wall of the housing docking part (6) is provided with a housing external thread (19) that is threaded to the locking nut (4), the outer wall of the connecting seat end stop (13) is provided with a connecting seat external thread (20) that is threaded to the locking nut (4), the outer diameter of the housing docking part (6) is the same as the outer diameter of the connecting seat end stop (13), and the locking nut (4) connects the housing docking part (6) and the connecting seat end stop (13) together.

3. The insulation test rod of claim 1, wherein: The metal test rod (2) and the insulating shell (1) are integrally injection molded.

4. The insulation test rod of claim 3, wherein: The outer wall of the metal test rod (2) is provided with test rod reinforcing bosses (22) at intervals, and the inner wall of the inner hole (9) of the housing is provided with a housing inner limiting groove (23) corresponding to the test rod reinforcing bosses (22).

5. The insulation test rod of claim 2, wherein: The main body (17) of the connector includes a connector hand-held part (11) and a connector mounting part (12). The outer diameter of the connector mounting part (12) is larger than the outer diameter of the connector end stop part (13). The connector mounting part (12) is used to limit the stroke when the locking nut (4) is tightened.

6. The insulation test rod of claim 5, wherein: The mounting part (12) of the connecting seat is a regular hexagonal structure.

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