Insulation resistance comprehensive tester

Abstract

The utility model discloses an insulation resistance comprehensive tester belongs to insulation resistance test technical field. A kind of insulation resistance comprehensive tester, including the tester body of wiring port and display screen being installed, still include: U-shaped frame, fixedly connected on the tester body, wherein, L-shaped plate is slidably installed on the U-shaped frame, a closed space that the U-shaped frame and L-shaped plate between constitute the shielding of wiring port and display screen;The utility model can push L-shaped plate and close it after its insulation pad resistance detection to equipment is finished, by the cooperation of U-shaped frame and L-shaped plate, a closed space that the shielding protection of wiring port and display screen can be constituted, avoid wiring port and display screen always expose to outside, greatly reduce the attachment of dust impurity, and then reduce the probability that wiring port short circuit and display screen are scratched by other objects, to improve the use effect of instrument.

Description

Technical Field

[0001] This utility model relates to the field of insulation resistance testing technology, and in particular to a comprehensive insulation resistance tester. Background Technology

[0002] An insulation resistance tester, also known as a megohmmeter, is an instrument used to measure the insulation resistance of electrical equipment or components. It can detect the insulation performance of electrical equipment or components under normal operating conditions to ensure the safe and reliable operation of the equipment. This type of test instrument is commonly used in chemical, electronic and other fields and is an important testing tool to ensure the safe operation of equipment.

[0003] Currently, insulation resistance testers typically require the test leads and grounding leads to be plugged into the instrument's connection ports during use. The insulation resistance is then measured using these leads, and the data is read from the display screen. However, the connection ports and display screens of most current insulation resistance testers are directly exposed to the outside environment. This allows dust and impurities from the outside air to easily enter the connection ports, potentially clogging them and causing short circuits, thus affecting the instrument's performance. Furthermore, the exposed display screen is not only susceptible to dust and impurities but is also easily scratched by other objects, resulting in a blurry display and further impacting the instrument's effectiveness. Utility Model Content

[0004] The purpose of this invention is to solve the problems of current insulation resistance testers, where the wiring ports are easily blocked by impurities and short-circuited, and the display screen is easily scratched by other objects and becomes blurry, thus affecting the performance of the instrument. Therefore, this invention proposes a comprehensive insulation resistance tester.

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

[0006] An insulation resistance comprehensive tester includes a tester body with a wiring port and a display screen, and further includes: a U-shaped frame fixedly connected to the tester body, wherein an L-shaped plate is slidably mounted on the U-shaped frame, and the U-shaped frame and the L-shaped plate form a closed space to shield the wiring port and the display screen; a connecting plate slidably mounted on the L-shaped plate, wherein a cleaning cotton plate is detachably mounted on the connecting plate, and a pressing part is provided on the L-shaped plate for driving the cleaning cotton plate to adhere to the surface of the display screen.

[0007] To guide the L-shaped plate, preferably, guide grooves are provided on both sides of the U-shaped frame, and guide blocks are fixedly connected to both sides of the L-shaped plate, with the guide blocks slidably connected in the guide grooves.

[0008] To prevent the L-shaped plate from sliding freely on the U-shaped frame, a positioning hole is further provided through the guide block, and an anti-slip sleeve is fixedly installed in the positioning hole. A positioning rod is fixedly connected inside the guide groove. When the L-shaped plate is closed, the positioning rod is tightly inserted into the anti-slip sleeve.

[0009] To facilitate quick insertion of the positioning rod into the anti-slip sleeve, a guide head is fixedly connected to one end of the positioning rod, and the guide head is conical in shape.

[0010] In order to drive the cleaning cotton board to adhere tightly to the surface of the display screen, preferably, the pressing part includes a pressing rod slidably connected to the L-shaped plate, the connecting plate is fixedly connected to one end of the pressing rod, the other end of the pressing rod is fixedly connected to a pressing block, and an elastic element is installed between the connecting plate and the L-shaped plate, so that the cleaning cotton board moves away from the display screen by the elastic force of the elastic element.

[0011] To keep the cleaning cotton board away from the display screen, the elastic element further includes a tube shell fixedly connected to the L-shaped plate, a movable rod slidably connected to the tube shell, and a tension spring installed inside the tube shell, with both ends of the tension spring fixedly connected to the inner wall of the tube shell and the surface of the movable rod, respectively.

[0012] To facilitate the assembly and disassembly of the cleaning cotton board, preferably, the connecting plate has an installation groove, and an installation block is fixedly connected to the cleaning cotton board, with the installation block slidably connected within the installation groove.

[0013] To facilitate the pushing and pulling of the L-shaped plate by users, preferably, multiple anti-slip ridges are fixedly connected to the L-shaped plate, and the multiple anti-slip ridges are arranged in a linear pattern on the surface of the L-shaped plate.

[0014] Compared with the prior art, the present invention provides a comprehensive insulation resistance tester, which has the following advantages:

[0015] 1. After the insulation resistance tester has completed the test on the insulation pad resistance of the equipment, it can push the L-shaped plate to close it. Through the combined use of the U-shaped frame and the L-shaped plate, a closed space can be formed to shield and protect the wiring port and the display screen, preventing the wiring port and the display screen from being constantly exposed to the outside world, greatly reducing the adhesion of dust and impurities, thereby reducing the probability of short circuits in the wiring port and scratches on the display screen by other objects, thus improving the effectiveness of the instrument.

[0016] 2. Before using this insulation resistance comprehensive tester, when it is necessary to clean the surface of the display screen, press the pressing block and move the cleaning cotton plate to make it stick tightly to the surface of the display screen. This allows the L-shaped plate to be opened while cleaning the surface of the display screen, removing dust and impurities, thereby improving the clarity of the display screen and helping users to better read the test data on the display screen during the insulation resistance test.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model solves the problem that current insulation resistance testers are prone to short circuits due to the blockage of impurities at their exposed wiring ports, and that their exposed displays are easily scratched by other objects, resulting in blurred displays and affecting the effectiveness of the instrument. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the isometric structure of an insulation resistance comprehensive tester proposed in this utility model;

[0019] Figure 2 This is a first-view isometric structural diagram of an insulation resistance comprehensive tester proposed in this utility model under operating conditions.

[0020] Figure 3 This is a second-view isometric structural diagram of an insulation resistance comprehensive tester under operating conditions proposed in this utility model.

[0021] Figure 4 A schematic diagram of a partial isometric structure of an insulation resistance comprehensive tester proposed in this utility model. Figure 1 ;

[0022] Figure 5 This is a schematic diagram of the U-shaped frame structure of an insulation resistance comprehensive tester proposed in this utility model;

[0023] Figure 6 A schematic diagram of a partial isometric structure of an insulation resistance comprehensive tester proposed in this utility model. Figure 2 ;

[0024] Figure 7 This is a partial exploded view of an insulation resistance comprehensive tester proposed in this utility model;

[0025] Figure 8 This is a schematic diagram of the cross-sectional structure of the casing of the insulation resistance comprehensive tester proposed in this utility model.

[0026] In the diagram: 1. Tester body; 2. Wiring port; 3. Display screen; 4. U-shaped frame; 5. L-shaped plate; 6. Guide groove; 61. Guide block; 62. Positioning hole; 63. Anti-slip sleeve; 64. Positioning rod; 7. Guide head; 8. Connecting plate; 81. Pressing rod; 82. Pressing block; 9. Cleaning cotton board; 10. Tube shell; 11. Movable rod; 12. Tension spring; 13. Mounting groove; 14. Mounting block; 15. Anti-slip convex strip. 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:

[0030] Reference Figures 1-8 This utility model provides an insulation resistance comprehensive tester, including a tester body 1 with a wiring port 2 and a display screen 3, and further including: a U-shaped frame 4, fixedly connected to the tester body 1, wherein an L-shaped plate 5 is slidably installed on the U-shaped frame 4, and the U-shaped frame 4 and the L-shaped plate 5 form a closed space to shield the wiring port 2 and the display screen 3; a connecting plate 8, slidably installed on the L-shaped plate 5, wherein a cleaning cotton plate 9 is detachably installed on the connecting plate 8, the cleaning cotton plate 9 is made of cotton cloth, has good softness and cleaning power, and the L-shaped plate 5 is provided with a pressing part, which is used to drive the cleaning cotton plate 9 to adhere to the surface of the display screen 3.

[0031] During use, after the instrument has completed the insulation resistance test of the equipment, the L-shaped plate 5 can be pushed to close it. The cooperation of the U-shaped frame 4 and the L-shaped plate 5 forms a closed space to shield and protect the wiring port 2 and the display screen 3, preventing the wiring port 2 and the display screen 3 from being constantly exposed to the outside world, greatly reducing the adhesion of dust and impurities, thereby reducing the probability of short circuit in the wiring port 2 and scratches on the display screen 3 by other objects, thus improving the performance of the instrument. Furthermore, the pressing part can drive the cleaning cotton plate 9 to stick tightly to the surface of the display screen 3, cleaning the surface of the display screen 3 while opening the L-shaped plate 5, removing dust and impurities from the surface of the display screen 3, thereby improving the clarity of the display screen 3 and helping users to better read the test data on the display screen 3 during the insulation resistance test.

[0032] The U-shaped frame 4 has guide grooves 6 on both sides, and guide blocks 61 are fixedly connected to both sides of the L-shaped plate 5. The guide blocks 61 are slidably connected in the guide grooves 6.

[0033] By setting the guide groove 6 and the guide block 61, the L-shaped plate 5 can be guided, so that the L-shaped plate 5 can slide stably on the U-shaped frame 4.

[0034] A positioning hole 62 is provided through the guide block 61, and an anti-slip sleeve 63 is fixedly installed in the positioning hole 62. A positioning rod 64 is fixedly connected inside the guide groove 6. When the L-shaped plate 5 is closed, the positioning rod 64 is tightly inserted into the anti-slip sleeve 63.

[0035] When the L-shaped plate 5 is closed and obstructs the display screen 3, the positioning rod 64 is tightly inserted into the anti-slip sleeve 63 through the cooperation of the positioning hole 62, the anti-slip sleeve 63, and the positioning rod 64. This can position the closed L-shaped plate 5 and prevent it from sliding freely on the U-shaped frame 4, thereby ensuring the protection of the wiring port 2 and the display screen 3.

[0036] One end of the positioning rod 64 is fixedly connected to a guide head 7, which is conical in shape.

[0037] The guide head 7 can guide the positioning rod 64 so that the positioning rod 64 can be quickly inserted into the anti-slip sleeve 63.

[0038] The pressing part includes a pressing rod 81 that is slidably connected to the L-shaped plate 5. A connecting plate 8 is fixedly connected to one end of the pressing rod 81. A pressing block 82 is fixedly connected to the other end of the pressing rod 81. An elastic element is installed between the connecting plate 8 and the L-shaped plate 5. The cleaning cotton plate 9 is moved away from the display screen 3 by the elastic force of the elastic element.

[0039] During use, when it is necessary to clean the surface of the display screen 3, the pressing block 82 and the pressing rod 81 can be pressed, which will move the connecting plate 8 and the cleaning cotton plate 9 toward the display screen 3, so that the cleaning cotton plate 9 is in close contact with the surface of the display screen 3. At the same time, the L-shaped plate 5 is pulled down to open the L-shaped plate 5 and remove the obstruction between the connection port 2 and the display screen 3, and move the cleaning cotton plate 9 down along the surface of the display screen 3. This allows the surface of the display screen 3 to be cleaned while the L-shaped plate 5 is opened, so that the dust and impurities on the surface of the display screen 3 are removed, thereby improving the clarity of the display screen 3 and making it easier for users to read the test data on the display screen 3 during the insulation resistance test.

[0040] The elastic element includes a tube shell 10 fixedly connected to the L-shaped plate 5, a movable rod 11 slidably connected to the tube shell 10, and a tension spring 12 installed inside the tube shell 10. The two ends of the tension spring 12 are fixedly connected to the inner wall of the tube shell 10 and the surface of the movable rod 11, respectively.

[0041] When in use, when the connecting plate 8 and the cleaning cotton plate 9 are pressed and move toward the display screen 3, the movable rod 11 slides inside the tube shell 10, and at the same time, the tension spring 12 is stretched. When the connecting plate 8 and the cleaning cotton plate 9 are not pressed, the elastic force of the tension spring 12 can make the cleaning cotton plate 9 quickly reset and move away from the display screen 3.

[0042] The connecting plate 8 has an installation groove 13, and the cleaning cotton board 9 is fixedly connected to the installation block 14, which is slidably connected in the installation groove 13.

[0043] The installation slot 13 and the installation block 14 facilitate quick assembly and disassembly of the cleaning cotton board 9, making it convenient to remove, maintain or replace the cleaning cotton board 9.

[0044] A number of anti-slip ridges 15 are fixedly connected to the L-shaped plate 5. The anti-slip ridges 15 are arranged in a linear pattern on the surface of the L-shaped plate 5, and there are a total of 8 anti-slip ridges 15.

[0045] The anti-slip ridges 15 increase the friction on the surface of the L-shaped plate 5, making it easier for users to push and pull the L-shaped plate 5.

[0046] After the insulation resistance test of the equipment is completed, the test lead and grounding lead can be disconnected from the wiring port 2. Then, push the L-shaped plate 5 upward and drive the guide block 61 to slide in the guide groove 6, so that the positioning rod 64 is tightly inserted into the anti-slip sleeve 63, thereby closing the L-shaped plate 5. Through the cooperation of the U-shaped frame 4 and the L-shaped plate 5, a closed space can be formed to shield and protect the wiring port 2 and the display screen 3, preventing the wiring port 2 and the display screen 3 from being constantly exposed to the outside world, greatly reducing the adhesion of dust and impurities, thereby reducing the probability of short circuit of the wiring port 2 and scratches of the display screen 3 by other objects, thus improving the use effect of the instrument.

[0047] On the other hand, before using the instrument, when it is necessary to clean the surface of the display screen 3, the pressing block 82 and the pressing rod 81 can be pressed, and the connecting plate 8 and the cleaning cotton plate 9 can be moved towards the display screen 3, so that the cleaning cotton plate 9 is in close contact with the surface of the display screen 3. At the same time, the L-shaped plate 5 is pulled down to open the L-shaped plate 5 and remove the obstruction of the connection port 2 and the display screen 3, and the cleaning cotton plate 9 is moved down along the surface of the display screen 3. The surface of the display screen 3 can be cleaned while the L-shaped plate 5 is opened, so that the dust and impurities on the surface of the display screen 3 are removed, thereby improving the clarity of the display screen 3 and helping the user to better read the test data on the display screen 3 during the insulation resistance test.

[0048] 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 insulation resistance comprehensive tester, comprising a tester body (1) equipped with a wiring port (2) and a display screen (3), characterized in that, Also includes: The U-shaped frame (4) is fixedly connected to the main body (1) of the tester. Among them, an L-shaped plate (5) is slidably installed on the U-shaped frame (4), and the U-shaped frame (4) and the L-shaped plate (5) form a closed space that shields the connection port (2) and the display screen (3); The connecting plate (8) is slidably mounted on the L-shaped plate (5). The connecting plate (8) is detachably mounted with a cleaning cotton plate (9), and the L-shaped plate (5) is provided with a pressing part, which is used to drive the cleaning cotton plate (9) to adhere to the surface of the display screen (3).

2. The insulation resistance comprehensive tester according to claim 1, characterized in that, The U-shaped frame (4) has guide grooves (6) on both sides, and guide blocks (61) are fixedly connected to both sides of the L-shaped plate (5). The guide blocks (61) are slidably connected in the guide grooves (6).

3. The insulation resistance comprehensive tester according to claim 2, characterized in that, The guide block (61) has a through-hole (62), and an anti-slip sleeve (63) is fixedly installed in the positioning hole (62). A positioning rod (64) is fixedly connected inside the guide groove (6). When the L-shaped plate (5) is closed, the positioning rod (64) is tightly inserted into the anti-slip sleeve (63).

4. The insulation resistance comprehensive tester according to claim 3, characterized in that, One end of the positioning rod (64) is fixedly connected to a guide head (7), which is conical in shape.

5. The insulation resistance comprehensive tester according to claim 1, characterized in that, The pressing part includes a pressing rod (81) slidably connected to the L-shaped plate (5), a connecting plate (8) fixedly connected to one end of the pressing rod (81), a pressing block (82) fixedly connected to the other end of the pressing rod (81), an elastic element installed between the connecting plate (8) and the L-shaped plate (5), and the cleaning cotton board (9) is moved away from the display screen (3) by the elastic force of the elastic element.

6. The insulation resistance comprehensive tester according to claim 5, characterized in that, The elastic element includes a tube shell (10) fixedly connected to an L-shaped plate (5), a movable rod (11) slidably connected to the tube shell (10), and a tension spring (12) installed inside the tube shell (10). The two ends of the tension spring (12) are fixedly connected to the inner wall of the tube shell (10) and the surface of the movable rod (11), respectively.

7. The insulation resistance comprehensive tester according to claim 1, characterized in that, The connecting plate (8) has an installation groove (13), and the cleaning cotton board (9) is fixedly connected to an installation block (14), which is slidably connected in the installation groove (13).

8. The insulation resistance comprehensive tester according to claim 1, characterized in that, Multiple anti-slip ridges (15) are fixedly connected to the L-shaped plate (5), and the multiple anti-slip ridges (15) are arranged in a linear pattern on the surface of the L-shaped plate (5).

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