Megohmmeter test pin with lighting function

Abstract

The utility model provides a megohmmeter test pin with a lighting function, which relates to the field of electric power measurement equipment and comprises a test pin head and a holding handle made of an insulating material and used for fixing the test pin head; the annular LED illuminating lamp is mounted on the holding handle and is arranged around the testing needle head; the test wire is positioned at one end, deviating from the test needle head, of the holding handle and is electrically connected with the test needle head; and the fixing clamp is electrically connected with one end, far away from the holding handle, of the test wire and is used for being connected with a megohmmeter. Through the arrangement of the annular LED illuminating lamp, the problem that the working efficiency is limited due to the fact that an electrical worker needs to additionally prepare a light source or adjust the position when the electrical worker remotely measures the insulation of the equipment in a working environment with insufficient illumination is effectively solved.

Description

Technical Field

[0001] This application relates to the technical field of power measurement equipment, and particularly to a megohmmeter test probe with a lighting function. Background Art

[0002] A megohmmeter is a type of measuring instrument mainly used to check the insulation resistance between the electrical equipment line and the ground and between phases. Megohmmeters are used very frequently in power production enterprises. For example, in a power plant, before regular switching of equipment or after the completion of maintenance work, electrical personnel need to use a megohmmeter to measure the insulation resistance value, and the motor can only be put into use after confirming that the insulation is qualified.

[0003] In actual work, the cooperation of two electrical personnel is usually carried out with one in front and the other behind. Since the endpoints of the components to be measured are usually in dark corners inside the cabinet door, the operating space is narrow and the lighting conditions are lacking. To ensure that the two test probes can stably contact the endpoints of the components to be measured, the electrical personnel in the front has to use both hands to stabilize them; while the one in the back needs to hold the megohmmeter firmly with one hand during the measurement and turn the holding handle with the other hand. A portable lighting device is adjusted to an appropriate angle and placed beside the body or fixed with the body to act as auxiliary lighting.

[0004] During the process of measuring the insulation resistance value, if it is found that the insulation resistance value is abnormal, due to the unstable lighting conditions, the electrical personnel in the front do not know whether the test probes have effectively contacted the endpoints of the components to be measured. At this time, the operation needs to be interrupted and the portable lighting device needs to be used again for confirmation; when measuring the insulation resistance values of multiple devices, it will have a certain impact on work efficiency. Utility Model Content

[0005] In order to improve the problem that the lighting of the working environment is insufficient when electrical personnel measure the insulation of equipment during actual work, and they need to prepare another light source or adjust their standing postures, which affects work efficiency, this application provides a megohmmeter test probe with a lighting function.

[0006] The megohmmeter test probe with a lighting function provided by this application adopts the following technical solutions:

[0007] A megohmmeter test probe with a lighting function includes a test needle tip, and further includes:

[0008] A holding handle, made of insulating material and used to fix the test needle tip;

[0009] A ring-shaped LED lighting lamp, installed on the holding handle and arranged around the test needle tip;

[0010] A test wire, located at one end of the holding handle away from the test needle tip and electrically connected to the test needle tip;

[0011] A fixed clamp, electrically connected to one end of the test wire away from the holding handle, and used to connect to a megohmmeter.

[0012] Furthermore, a switch for turning on and off the annular LED lighting lamp is provided on the annular LED lighting lamp.

[0013] Furthermore, a built-in rechargeable battery is provided inside the annular LED lighting lamp, and a Type-C charging port for charging the built-in rechargeable battery is provided on the annular LED lighting lamp.

[0014] Furthermore, the annular LED lighting lamp is detachably mounted on the holding handle.

[0015] Furthermore, a sleeve is sleeved on one end of the test head of the test needle.

[0016] Furthermore, an insulating handle is sleeved on the connection part between the fixed clamp and the test wire.

[0017] Furthermore, the sleeve and the insulating handle are made of insulating materials.

[0018] Furthermore, the test needle, the test wire and the fixed clamp are all made of copper.

[0019] Furthermore, anti-slip patterns are provided on the outer peripheral wall of the holding handle.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. An operator holding the holding handle can turn on the annular LED lighting lamp. Even in a working environment with insufficient lighting, it is always convenient for the operator to touch the test needle against the measuring point, ensuring the detection efficiency and effectively solving the problem that electrical personnel need to prepare another light source or adjust their positions when measuring the insulation of equipment, resulting in limited work efficiency.

[0022] 2. The annular LED lighting lamp is detachably mounted on the holding handle. For example, when operating in a narrow space with sufficient light, the annular LED lighting lamp can be removed to use the test needle of the present application, and the usage method is flexible, suitable for different working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present application;

[0025] Figure 2 It is a simplified diagram of the present application embodiment for showing the connection relationship of each component.

[0026] Reference numerals: 1, test needle; 2, sleeve; 3, annular LED lighting lamp; 4, switch; 5, Type-C charging port; 6, holding handle; 7, test wire; 8, insulating handle; 9, fixing pliers. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Referring to Figure 1 , an embodiment of the present application discloses a megohmmeter test needle with a lighting function, which includes a test needle 1, and further includes:

[0029] A holding handle 6, made of insulating material and used to fix the test needle 1. Anti-slip patterns are provided on the outer peripheral wall of the holding handle 6 to facilitate stable holding during operation;

[0030] An annular LED lighting lamp 3, installed on the holding handle 6 and arranged around the test needle 1, and its light direction faces the test head end of the test needle 1, which can be a divergent light source, a parallel light source, or a focused light source; if necessary, in other feasible embodiments, the annular LED lighting lamp 3 can also be set with adjustable focal length;

[0031] A test wire 7, located at one end of the holding handle 6 away from the test needle 1 and electrically connected to the test needle 1;

[0032] A fixing pliers 9, electrically connected to one end of the test wire 7 away from the holding handle 6 and used to connect to the megohmmeter; in specific use, two test needles of the present application are used in a group in cooperation with the megohmmeter.

[0033] In this way, when measuring the insulation resistance, the test needles of two of the present applications can be connected to the positive and negative poles of the megohmmeter. Specifically, they are connected through two fixed clamps 9, which makes it more convenient to disassemble and assemble. Then, rotate the handle of the megohmmeter to detect the insulation resistance. The operator holding the handle 6 can turn on the annular LED lighting lamp 3. Even in a working environment with poor lighting, it is always convenient for the operator to touch the test needle head 1 on the measurement point, ensuring the detection efficiency and effectively solving the problem that electrical personnel need to prepare an additional light source or adjust their positions when measuring the insulation of equipment, which limits the work efficiency.

[0034] Furthermore, to facilitate the flexible use of the test needles of the present application in the field.

[0035] On the one hand, the annular LED lighting lamp 3 can be detachably installed on the holding handle 6. The specific installation method can be magnetic adsorption. For example, at least one of the holding handle 6 and the outer shell of the annular LED lighting lamp 3 is a permanent magnet, and the other is a ferromagnetic body or a permanent magnet with magnetic attraction to the former; friction and clamping type. For example, the front end of the holding handle 6 has an outer diameter closing part. After the inner ring of the outer shell of the annular LED lighting lamp 3 moves to the closing part and is tightened, the fixation of the annular LED lighting lamp 3 can also be achieved; and rotation and clamping type, etc. These methods can all facilitate the operator to remove or install the annular LED lighting lamp 3 from the holding handle 6. For example, when operating in a narrow space with sufficient light, the annular LED lighting lamp 3 can be removed to use the test needles of the present application. Similarly, it is also easy to manufacture, maintain, and replace the corresponding components.

[0036] On the other hand, a switch 4 for turning on and off the annular LED lighting lamp 3 is provided on the annular LED lighting lamp 3. An internal rechargeable battery is provided inside the annular LED lighting lamp 3, and a Type-C charging port 5 for charging the internal rechargeable battery is provided on the annular LED lighting lamp 3. In this way, the annular LED lighting lamp 3 can be used independently, and its operability is more flexible, suitable for different working environments.

[0037] At the same time, to ensure the accuracy of the detection results and reduce the errors caused by modifying the test needles, on the one hand, the test needle head 1, the test wire 7, and the fixed clamp 9 are all made of copper material, which can minimize the resistance influence of the test needles themselves; on the other hand, a sleeve 2 is sleeved on one end of the test head of the test needle head 1, and an insulating handle 8 is sleeved on the connection part between the fixed clamp 9 and the test wire 7. The sleeve 2 and the insulating handle 8 are made of insulating materials, which can improve the safety when using the present application.

[0038] The implementation principle of a megohmmeter test needle with a lighting function in an embodiment of the present application is as follows:

[0039] When measuring the insulation resistance, the two test needles of the present application can be connected to the positive and negative poles of the megohmmeter. Specifically, they are connected through two fixed clamps 9, which can be disassembled and assembled more conveniently. Then, rotate the handle of the megohmmeter to detect the insulation resistance. The operator holding the handle 6 can turn on the annular LED lighting lamp 3. Even in a working environment with poor lighting, it is always convenient for the operator to touch the test needle 1 on the measurement point, ensuring the detection efficiency and effectively solving the problem that electrical personnel need to prepare another light source or adjust their positions when measuring the insulation of equipment, resulting in limited work efficiency.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A megohmmeter test needle with lighting function, comprising a test needle head, characterized in that: Also includes: A holding handle, made of insulating material and used to fix the test needle; A ring-shaped LED lighting lamp is installed on the holding handle and is arranged around the test needle; A test line, located at an end of the holding handle away from the test needle and electrically connected to the test needle; A fixed clamp is electrically connected to an end of the test line away from the holding handle and is used to connect to a megohmmeter.

2. The megohmmeter test needle with lighting function according to claim 1, characterized in that: The annular LED lighting lamp is provided with a switch for turning on and off the annular LED lighting lamp.

3. The megohmmeter test needle with lighting function according to claim 1, characterized in that: A built-in rechargeable battery is arranged in the annular LED lighting lamp, and a Type-C charging port for charging the built-in rechargeable battery is arranged on the annular LED lighting lamp.

4. The megohmmeter test needle with lighting function according to claim 1, characterized in that: The annular LED lighting lamp can be detachably mounted on the holding handle.

5. The megohmmeter test needle with lighting function according to claim 1, characterized in that: One end of the test head of the test needle is sleeved with a sleeve.

6. The megohmmeter test needle with lighting function according to claim 5, characterized in that: The fixing clamp and the test line connecting portion are sleeved with an insulating handle.

7. The megohmmeter test needle with lighting function according to claim 6, characterized in that: The sleeve and the insulating handle are made of insulating material.

8. The megohmmeter test needle with lighting function according to claim 1, characterized in that: The test needle, the test wire and the fixing clamp are all made of copper.

9. The megohmmeter test needle with lighting function according to claim 1, characterized in that: The outer peripheral wall of the holding handle is provided with anti-slip patterns.

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