An error precision testing tool for an electric energy meter
By designing a test fixture for electricity meter error accuracy, and using components such as pull rods, moving frames, support rods, sliding rods, and support blocks, the problem of traditional fixtures being unable to fix the electricity meter was solved, achieving stable contact between the electricity meter and the probe, and improving test accuracy and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO SHIZE ELECTRONIC METER CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional voltage withstand testing fixtures for electricity meters cannot effectively secure the meter, causing it to shake during testing and resulting in poor contact with the probe.
A fixture for testing the error accuracy of an electricity meter was designed, including a base, mounting frame, limit frame, probe, positioning mechanism, and fixing mechanism. By using a combination of pull rod, moving frame, support rod, slide rod, and support block, the electricity meter can be stably fixed, and the friction is increased by the anti-slip pad to ensure stable contact between the electricity meter and the probe.
This effectively prevents the energy meter from shaking during the test, ensures stable contact between the probe and the energy meter, and improves the accuracy and reliability of the test.
Smart Images
Figure CN224594830U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electricity meter manufacturing technology, and in particular to an error accuracy testing fixture for electricity meters. Background Technology
[0002] An electricity meter is an instrument used to measure electrical energy; it is also called a kilowatt-hour meter, fire meter, or kilowatt-hour meter, and refers to instruments that measure various electrical quantities. Electricity error accuracy testing is a crucial safety inspection procedure, its core function being to evaluate the error accuracy of the electricity meter under high-voltage conditions.
[0003] Currently, when performing withstand voltage tests on traditional electricity meters, a probe needs to be inserted into the inside of the meter. However, after the probe is inserted into the inside of the meter, the traditional withstand voltage test fixture cannot fix the meter in place, causing the meter to shake easily and resulting in poor contact between the meter and the probe. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a tooling for testing the error accuracy of an electricity meter, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.
[0005] To achieve the above objectives, this application adopts the following technical solution: a fixture for testing the error accuracy of an electricity meter, comprising a base, a mounting frame fixedly connected to the top of the base, a limiting frame slidably connected to the surface of the mounting frame, a connecting mechanism on one side of the limiting frame, a probe slidably connected inside the limiting frame, a positioning mechanism on one side of the probe, a fixing mechanism on the top of the limiting frame, the fixing mechanism comprising a movable frame, the movable frame slidably connected to the mounting frame, a pull rod rotatably connected to the surface of the movable frame, a support rod rotatably connected to one side of the pull rod, a sliding rod rotatably connected to the side of the support rod away from the pull rod, the sliding rod slidably connected to the movable frame, a support block fixedly connected to the bottom of the sliding rod, an anti-slip mechanism on the surface of the support block, and a limiting mechanism on the surface of the movable frame.
[0006] In a preferred embodiment, the connecting mechanism includes a fixing block, which is fixedly connected to the mounting bracket. An insert block is slidably connected inside the fixing block and is slidably connected to the limiting bracket. A spring is fixedly connected inside the insert block, and a positioning rod is fixedly connected to one side of the spring. The positioning rod is slidably connected to the insert block.
[0007] By adopting the above technical solution, the limiting frame is fixed to the surface of the mounting frame by inserting the insert block into the inside of the fixing block, and then the positioning rod is supported by the spring and inserted into the inside of the fixing block to position the insert block. This can better fix the limiting frame to the surface of the mounting frame.
[0008] In a preferred embodiment, the positioning mechanism includes a slide groove formed on the surface of the limiting frame, a positioning block slidably connected inside the slide groove, and a bolt threadedly connected to the surface of the positioning block.
[0009] By adopting the above technical solution, the positioning block is moved by pulling the probe, the positioning block is limited by the slide groove, the bolt is rotated to enter the probe, and the positioning block is positioned by contacting the surface of the limiting frame. This can better position the probe.
[0010] In a preferred embodiment, the anti-slip mechanism includes a slider that is slidably connected to a support block, a fixing plate that is fixedly connected to the bottom of the slider, and an anti-slip pad that is fixedly connected to the bottom of the fixing plate.
[0011] By adopting the above technical solution, the slider is inserted into the support block to position the fixing plate, and the anti-slip pad at the bottom of the fixing plate abuts against the surface of the electricity meter, increasing the friction between the electricity meter and the support block, which can better position the electricity meter.
[0012] In a preferred embodiment, a limiting groove is formed on the surface of the movable frame, and the limiting groove is adapted to the slide rod.
[0013] By adopting the above technical solution, a limiting groove is opened on the surface of the movable frame, and the sliding rod is limited by the limiting groove, which can better limit the sliding rod and make the sliding rod move on the surface of the movable frame.
[0014] In a preferred embodiment, the anti-slip pad is a rubber component.
[0015] By adopting the above technical solution and using the anti-slip pad as a rubber component, the friction between the electricity meter and the support block can be better enhanced.
[0016] In a preferred embodiment, the limiting mechanism includes a second bolt, which is threadedly connected to the movable frame. The surface of the mounting frame is provided with a plurality of mounting grooves, which are evenly distributed on the surface of the mounting frame and are adapted to the second bolt.
[0017] By adopting the above technical solution, the second bolt is rotated to pass through the movable frame and enter the interior of the mounting slot to position the movable frame, which can better position the movable frame.
[0018] The beneficial effects of this application are: 1. This energy meter error accuracy testing fixture, by setting up a pull rod, a movable frame, a support rod, a slide rod, and a support block, moves the movable frame to a designated location by pulling it, then rotates the pull rod on the surface of the movable frame by pulling it, then pushes the support rod to move, then the support rod pushes the slide rod to move, then the slide rod moves the support block to move, and finally the support block abuts against the energy meter to position the energy meter. This avoids the problem of traditional energy meter withstand voltage testing fixtures being unable to fix the energy meter, which leads to the energy meter easily shaking and poor contact between the energy meter and the probe, thus improving practicality.
[0019] 2. This energy meter error accuracy testing fixture, by setting up an anti-slip pad, a fixing plate and a slider, the slider is inserted into the inside of the support block to position the fixing plate, and then the anti-slip pad at the bottom of the fixing plate abuts against the surface of the energy meter, increasing the friction between the energy meter and the support block. This avoids the problem of traditional energy meter withstand voltage testing fixtures where the anti-slip pad cannot be replaced, thus improving practicality. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the front structure of this application; Figure 2 This is a schematic diagram of the limiting mechanism structure in this application; Figure 3 This is a schematic diagram of the connection mechanism structure of this application; Figure 4 This is a schematic diagram of the fixed mechanism structure of this application.
[0021] The following are the labels in the diagram: 1. Base; 2. Connecting mechanism; 21. Fixing block; 22. Insert block; 23. Positioning rod; 24. Spring; 3. Positioning mechanism; 31. Slide groove; 32. Positioning block; 33. Bolt 1; 4. Fixing mechanism; 41. Pull rod; 42. Moving frame; 43. Support rod; 44. Slide rod; 45. Support block; 5. Limiting mechanism; 51. Mounting groove; 52. Bolt 2; 6. Anti-slip mechanism; 61. Anti-slip pad; 62. Fixing plate; 63. Slider; 7. Mounting frame; 8. Probe; 9. Limiting frame. Detailed Implementation
[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0023] Reference Figures 1-4A fixture for testing the error accuracy of an electricity meter includes a base 1, a mounting frame 7 fixedly connected to the top of the base 1, a limiting frame 9 slidably connected to the surface of the mounting frame 7, a connecting mechanism 2 on one side of the limiting frame 9, a probe 8 slidably connected inside the limiting frame 9, a positioning mechanism 3 on one side of the probe 8, a fixing mechanism 4 on the top of the limiting frame 9, and a moving frame 42 slidably connected to the mounting frame 7. A pull rod 41 is rotatably connected to the surface of the moving frame 42, a support rod 43 is rotatably connected to one side of the pull rod 41, a sliding rod 44 is rotatably connected to the side of the support rod 43 away from the pull rod 41, the sliding rod 44 is slidably connected to the moving frame 42, a support block 45 is fixedly connected to the bottom of the sliding rod 44, an anti-slip mechanism 6 is provided on the surface of the support block 45, and a limiting mechanism 5 is provided on the surface of the moving frame 42.
[0024] Reference Figures 1-3 The connecting mechanism 2 includes a fixing block 21, which is fixedly connected to the mounting frame 7. An insert block 22 is slidably connected inside the fixing block 21 and is slidably connected to the limiting frame 9. A spring 24 is fixedly connected inside the insert block 22, and a positioning rod 23 is fixedly connected to one side of the spring 24. The positioning rod 23 is slidably connected to the insert block 22. By inserting the insert block 22 into the fixing block 21, the limiting frame 9 is fixed to the surface of the mounting frame 7. The spring 24 supports the positioning rod 23, and the positioning rod 23 is inserted into the fixing block 21 to position the insert block 22. This can better fix the limiting frame 9 to the surface of the mounting frame 7.
[0025] Reference Figure 3 The positioning mechanism 3 includes a slide groove 31, which is formed on the surface of the limiting frame 9. A positioning block 32 is slidably connected inside the slide groove 31, and a bolt 33 is threadedly connected to the surface of the positioning block 32. By pulling the probe 8, the positioning block 32 is moved, and the slide groove 31 limits the positioning block 32. Then, by rotating the bolt 33, the bolt 33 is inserted into the interior of the probe 8, and the positioning block 32 abuts against the surface of the limiting frame 9 to position the probe 8, which can better position the probe 8.
[0026] Reference Figure 4 The anti-slip mechanism 6 includes a slider 63, which is slidably connected to the support block 45. A fixing plate 62 is fixedly connected to the bottom of the slider 63, and an anti-slip pad 61 is fixedly connected to the bottom of the fixing plate 62. The slider 63 is inserted into the support block 45 to position the fixing plate 62. The anti-slip pad 61 at the bottom of the fixing plate 62 then abuts against the surface of the electricity meter, increasing the friction between the electricity meter and the support block 45, which can better position the electricity meter.
[0027] Reference Figure 4A limiting groove is provided on the surface of the movable frame 42, and the limiting groove is adapted to the slide rod 44. By providing a limiting groove on the surface of the movable frame 42, and then limiting the slide rod 44 by the limiting groove, the slide rod 44 can be better limited, so that the slide rod 44 can move on the surface of the movable frame 42.
[0028] Reference Figures 1-4 The anti-slip pad 61 is a rubber component; by making the anti-slip pad 61 a rubber component, the friction between the electricity meter and the support block 45 can be better enhanced.
[0029] Reference Figure 2 The limiting mechanism 5 includes a second bolt 52, which is threadedly connected to the movable frame 42. The surface of the mounting frame 7 is provided with several mounting grooves 51, which are evenly distributed on the surface of the mounting frame 7. The mounting grooves 51 are adapted to the second bolt 52. By rotating the second bolt 52, the second bolt 52 passes through the movable frame 42 and enters the interior of the mounting groove 51, thereby positioning the movable frame 42 and enabling better positioning of the movable frame 42.
[0030] Working principle: Insert the insert 22 into the fixed block 21 to fix the limiting frame 9 to the surface of the mounting frame 7. Then, the spring 24 supports the positioning rod 23, which is then inserted into the fixed block 21 to position the insert 22. Pulling the probe 8 moves the positioning block 32, which is then limited by the sliding groove 31. Rotating the bolt 33 causes it to enter the probe 8, and the positioning block 32 abuts against the surface of the limiting frame 9 to position the probe 8. The energy meter is then placed on the surface of the limiting frame 9, allowing the probe 8 to insert into the bottom of the energy meter. Finally, pulling the moving frame 42 moves the moving frame 42 to the designated location. Then, the second bolt 52 is rotated to pass through the movable frame 42 and enter the interior of the mounting groove 51 to position the movable frame 42. Then, the pull rod 41 is pulled to rotate on the surface of the movable frame 42. Then, the pull rod 41 pushes the support rod 43 to move. Then, the support rod 43 pushes the slide rod 44 to move. Then, the slide rod 44 moves and drives the support block 45 to move. Then, the support block 45 abuts against the electricity meter to position the electricity meter. Then, the slider 63 is inserted into the interior of the support block 45 to position the fixing plate 62. Then, the anti-slip pad 61 at the bottom of the fixing plate 62 abuts against the surface of the electricity meter to increase the friction between the electricity meter and the support block 45.
[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.
Claims
1. A fixture for testing the error accuracy of an electricity meter, comprising a base (1), characterized in that, The top of the base (1) is fixedly connected to the mounting bracket (7), the surface of the mounting bracket (7) is slidably connected to the limiting bracket (9), one side of the limiting bracket (9) is provided with a connecting mechanism (2), the inside of the limiting bracket (9) is slidably connected to the probe (8), one side of the probe (8) is provided with a positioning mechanism (3), the top of the limiting bracket (9) is provided with a fixing mechanism (4), the fixing mechanism (4) includes a moving bracket (42), the moving bracket (42) is slidably connected to the mounting bracket (7), the surface of the moving bracket (42) is rotatably connected to the pull rod (41), one side of the pull rod (41) is rotatably connected to the support rod (43), the side of the support rod (43) away from the pull rod (41) is rotatably connected to the slide rod (44), the slide rod (44) is slidably connected to the moving bracket (42), the bottom of the slide rod (44) is fixedly connected to the support block (45), the surface of the support block (45) is provided with an anti-slip mechanism (6), and the surface of the moving bracket (42) is provided with a limiting mechanism (5).
2. The fixture for testing the error accuracy of an electricity meter according to claim 1, characterized in that, The connecting mechanism (2) includes a fixing block (21), which is fixedly connected to the mounting bracket (7). A plug (22) is slidably connected inside the fixing block (21). The plug (22) is slidably connected to the limiting bracket (9). A spring (24) is fixedly connected inside the plug (22). A positioning rod (23) is fixedly connected to one side of the spring (24). The positioning rod (23) is slidably connected to the plug (22).
3. The fixture for testing the error accuracy of an electricity meter according to claim 1, characterized in that, The positioning mechanism (3) includes a slide groove (31), which is formed on the surface of the limiting frame (9). A positioning block (32) is slidably connected inside the slide groove (31), and a bolt (33) is threadedly connected to the surface of the positioning block (32).
4. The power meter error accuracy testing fixture according to claim 1, characterized in that, The anti-slip mechanism (6) includes a slider (63), which is slidably connected to a support block (45). A fixing plate (62) is fixedly connected to the bottom of the slider (63), and an anti-slip pad (61) is fixedly connected to the bottom of the fixing plate (62).
5. The fixture for testing the error accuracy of an electricity meter according to claim 1, characterized in that, The surface of the movable frame (42) is provided with a limiting groove, which is adapted to the slide bar (44).
6. The power meter error accuracy testing fixture according to claim 4, characterized in that, The anti-slip mat (61) is a rubber component.
7. The power meter error accuracy testing fixture according to claim 1, characterized in that, The limiting mechanism (5) includes bolt two (52), which is threadedly connected to the movable frame (42). The surface of the mounting frame (7) is provided with several mounting grooves (51), which are evenly distributed on the surface of the mounting frame (7). The mounting grooves (51) are adapted to bolt two (52).