Compatible tray and opening mechanism thereof

By designing a compatible tray and its opening mechanism, the shortcomings of existing energy meter testing trays in terms of model compatibility and fixing methods have been solved, enabling stable installation and accurate switching of single-phase and three-phase energy meters and terminals, and improving the compatibility and efficiency of the testing production line.

CN121974029APending Publication Date: 2026-05-05HENAN XJ INSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN XJ INSTR
Filing Date
2026-01-28
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing testing trays for electricity meters have shortcomings in model compatibility, fixing methods, and adjustable range, and cannot be fully compatible with electricity meters of different sizes and brands, resulting in poor testing results and low efficiency.

Method used

Design a compatible tray and its opening mechanism. Through mechanical structures such as sliding levers, adjusting levers and cylinder drives, it can achieve stable installation and accurate switching of single-phase and three-phase energy meters and terminals. The limit frame and slide rail ensure the stable operation of the tray on the production line.

Benefits of technology

It enables precise placement and switching of different types of electricity meters, improves the compatibility and efficiency of the testing line, and ensures the stability and accuracy of electricity meters during the testing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of electric energy meter detection equipment, and particularly relates to a compatible tray and an opening mechanism thereof.The compatible tray comprises a bottom plate and an outer frame, the outer frame is arranged at the upper end of the bottom plate, the bottom plate is fixedly connected with a partition plate frame, the partition plate frame divides the bottom plate into six mounting frames, and the interiors of the mounting frames are connected with supporting frames; two symmetrically-distributed sliding shifting pieces are slidably connected in each supporting frame, the two sliding shifting pieces are fixedly connected with a sliding supporting rod frame slidably connected in the supporting frame, a sliding pushing rod frame is connected with the supporting frame through a spring, and the lower end of the sliding pushing rod frame is connected with a gauge stand opening mechanism. Two symmetrically-distributed adjusting shifting pieces are slidably connected to the middle position in the base, the two adjusting shifting pieces are connected with the bottom plate through springs, the lower ends of the adjusting shifting pieces are connected with an external driving structure, and the upper end of the base is connected with a barrier strip; and the practicability is high.
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Description

Technical Field

[0001] This invention relates to the field of electricity meter testing equipment technology, specifically a compatibility tray and its opening mechanism. Background Technology

[0002] The requirements for production line flexibility and compatibility are increasing. A meter compatibility tray is an auxiliary device used to install and secure different types of electricity meters. It should be compatible with electronic or mechanical electricity meters of different sizes and specifications, while facilitating meter replacement and maintenance. Currently, the automation and intelligence of electricity meter verification lines are constantly improving, with most meter loading and unloading using robotic grippers. Therefore, a device is needed to automatically assist the compatibility tray in switching between different meter types, thereby completing the overall operation and verification process.

[0003] Chinese patent application CN201910761126.3 discloses a fully compatible energy meter tray. This patent features cross-shaped plates on the top surface of the tray body, dividing it into multiple accommodating cavities. Fixed mounting holes are provided within the tray body, allowing for the installation of different specifications of energy meters by adjusting the position of limiting components within the tray body according to testing needs. The protruding blocks and limiting devices facilitate securing the energy meters to the tray body. The telescopic blocks on the protruding limiting components can be pressed into the tray body when not in use, making single-phase meter installation more convenient. The mounting slots on the platform facilitate the installation of energy meter wiring and the removal and placement of the energy meters. In summary, this invention can accommodate various specifications of energy meters, including single-phase meters, direct-through three-phase meters, mutual inductance three-phase meters, and Type I concentrators. When changing different types of energy meters, there is no need to change the corresponding tray, effectively improving work efficiency.

[0004] Chinese patent application CN201711135801.9 discloses a turnover tray for electricity meters on an automated production line. It uses a slider and a guide block to engage, and the guide block and the slider have recesses of varying depths to control the compression of a spring, thus changing the clamping width of the clamp to accommodate electricity meters of different sizes. The rounded chamfers on the tray body reduce contact with the guide sides of the production line. This electricity meter turnover tray allows electricity meter manufacturers to save on automated production line hardware costs, eliminates the need to replace the turnover tray when switching between different sized products on the automated production line, saves time, improves testing efficiency, and achieves fully automated testing. However, in practical applications, the following problems still exist: Insufficient model compatibility: Some tray designs are only designed for specific brands or models and cannot fully adapt to all electricity meters on the market due to differences in size and mounting hole positions. Some tray designs have limited meter compatibility, which cannot meet the needs of normal electricity meter calibration production lines. Electricity meters meeting new national or international standards may not be compatible with older trays. Mechanical structures limit the fixing methods to a single type, such as only supporting screw fixing or clip fixing, which cannot flexibly adapt to different installation needs; The limited adjustability of some trays makes it impossible to securely install certain special-sized energy meters. Some trays have poor positioning accuracy, and cannot be effectively positioned after installation, which can easily lead to inaccurate insertion during testing, affecting the testing results. There is a lack of switching mechanisms that match compatible trays, which cannot achieve automatic switching when different meter types are online. Some switching mechanisms are not flexible and cannot be well integrated with the line, resulting in poor switching accuracy and affecting testing.

[0005] Therefore, the present invention provides a compatible tray and its opening mechanism to solve the above problems. Summary of the Invention

[0006] In view of the above situation and to overcome the defects of the prior art, the present invention provides a compatible tray and its opening mechanism, which can be compatible with single-phase energy meters, three-phase energy meters and terminals. It can control the mechanical structure of the compatible tray during the operation of the line and the loading and unloading of the meters, so that the compatible tray can complete the normal placement of different meter types.

[0007] The present invention provides a compatible tray, comprising a base plate and an outer frame. The outer frame is placed on the upper part of the base plate. A partition frame is fixedly connected to the base plate, dividing the base plate into six mounting frames. Each mounting frame is internally connected to a support frame. Each support frame is slidably connected to two symmetrically distributed sliding paddles. The two sliding paddles are fixedly connected to a sliding support rod frame slidably connected within the support frame. The sliding support rod frame is connected to the support frame by a spring. The lower end of the sliding support rod frame is connected to a table base opening mechanism. The base has two symmetrically distributed adjustment levers slidably connected in the middle. Both adjustment levers are connected to the base plate by springs, and the lower ends of the adjustment levers are connected to an external driving structure. A baffle is connected to the upper end of the base; The lower end of the base plate is connected to a limiting frame, which is connected to an external slide rail.

[0008] Preferably, both the tray and the base plate are provided with positioning holes.

[0009] A tray switching structure includes a base frame, inside which two sets of symmetrical sliding push frames are slidably connected. Each sliding push frame is connected to three levers, which cooperate with the sliding paddles. The sliding of the levers drives the sliding paddles. The lower end of each sliding push frame is connected to a telescopic cylinder placed inside the base frame, which drives the sliding push frame. The base frame has two push frames that are slidably connected inside. The upper end of the push frame is connected to a push lever. The push lever cooperates with the adjustment lever. The push frame is connected to a push cylinder inside the base frame. The lower end of the base frame is provided with a support base, and a lifting cylinder is connected to the support base. The lifting cylinder is connected to the base frame, and the lifting of the base frame is achieved through the lifting cylinder.

[0010] Preferably, the base frame has two symmetrically distributed limiting pins connected inside, and a limiting ring plate is coaxially fixedly connected to the limiting pins. The tray is provided with an oil-free bushing that cooperates with the limiting pins.

[0011] Preferably, the base frame is connected to a slide cylinder that cooperates with the pusher frame, the pusher frame slides along the slide cylinder, the base frame is connected to a sliding track, and the pusher frame and the base frame are slidably connected.

[0012] This invention improves upon existing energy meter testing trays and has the following beneficial effects: 1. It can achieve compatible placement of single-phase energy meters, three-phase energy meters and terminals, and reasonably place the above-mentioned meters to enable online circulation and detection.

[0013] 2. Enables precise switching between different models, allowing control of the mechanical structure of the compatible tray during the operation of the online system and the loading and unloading of the tray, thus enabling the compatible tray to be placed normally for different models. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the partition frame and its connecting parts according to the present invention.

[0016] Figure 3 This is a schematic diagram of the support base and its connecting parts of the present invention.

[0017] Figure 4 This is a schematic diagram showing the connection between the support base and the lifting plate of the present invention.

[0018] Figure 5 This is a schematic diagram of the baffle connection of the present invention.

[0019] Figure 6 This is a schematic diagram of the internal structure of the partition frame of the present invention.

[0020] Figure 7 This is a schematic diagram of the internal structure of the base plate of the present invention.

[0021] Figure 8 This is a schematic diagram of the oil-free bushing connection of the present invention.

[0022] Reference numerals: 1. Base plate; 2. Outer frame; 3. Partition plate frame; 4. Mounting frame; 5. Support frame; 6. Sliding lever; 7. Sliding push rod frame; 8. Adjusting lever; 9. Stop bar; 10. Limiting frame; 11. Positioning pin; 12. Positioning hole; 13. Base frame; 14. Lifting plate; 15. Sliding push frame; 16. Lever plate; 17. Telescopic cylinder; 18. Pushing frame; 19. Pushing lever plate; 20. Pushing cylinder; 21. Support base; 22. Lifting cylinder; 23. Limiting pin; 24. Limiting ring plate; 25. Oil-free bushing; 26. Pad plate; 27. Slide table cylinder. Detailed Implementation

[0023] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 7 The detailed description of the embodiments will make this clear. All structural details mentioned in the following embodiments are based on the accompanying drawings.

[0024] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0025] This invention relates to a compatible tray and its opening mechanism, comprising a base plate 1 and an outer frame 2. The outer frame 2 is positioned on top of the base plate 1, supporting other components and the electricity meter. A partition frame 3 is fixedly connected to the base plate 1, dividing it into six mounting frames 4. These mounting frames 4 provide space for the single-phase meters, ensuring simultaneous accommodation of six sets of single-phase meters. Each mounting frame 4 contains a support frame 5, which has a built-in stainless steel plate. The support frame 5 supports the single-phase meters and provides a fixed support foundation for subsequent structures. Each support frame 5 has two symmetrically distributed sliding levers 6 slidably connected within it. The sliding support rod bracket inside the support frame 5 is fixedly connected. The sliding push rod bracket 7 and the support frame 5 are connected by a spring. When the sliding push rod bracket 7 slides, it drives the sliding lever 6 to slide. When the sliding lever 6 slides, it provides support and fixation for the single-phase or three-phase meter in the left-right direction. At the same time, the single-phase meter is limited in the front-back direction by the cooperation of the support frame 5. Through the cooperation of the sliding lever 6 and the support frame 5, the single-phase meter is prevented from shaking or shifting. The lower end of the sliding push rod bracket 7 is connected to the meter base opening mechanism. The meter base opening mechanism uses a conventional drive mechanism to drive the sliding push rod, which will not be described in detail here. During the sliding process of the sliding push rod, the sliding lever 6 clamps and limits the single-phase meter.

[0026] The upper end of the base is connected to a baffle 9, which isolates the various energy meters. The baffle 9 is suitable for different energy meters in different positions. When the baffle 9 is in the middle position, it is used to test single-phase meters. When the baffle 9 slides to the front or rear end, it limits the movement of three-phase meters or terminals, preventing them from sliding in the front-to-back direction. Two symmetrically distributed adjusting levers 8 are slidably connected to the middle position inside the base. Both adjusting levers 8 are connected to the base plate 1 by springs. The lower end of each adjusting lever 8 is connected to an external drive structure, which drives the adjusting levers 8 to ensure the limiting of the terminal meter and maintain its stability. The lower end of the base plate 1 is connected to a limit frame 10, which is connected to an external slide rail, allowing the tray to slide along the slide rail for assembly line operation.

[0027] In this embodiment, the tray is first stopped by a stop mechanism on the production line. The stop mechanism is controlled by a cylinder. When it is necessary to move the single-phase meter up or down, the stop plate is located in the middle of the base plate 1. Then, the six single-phase meters are placed on the support frame 5. The support frame 5 limits the meter in the left and right directions. Then, the sliding paddle 6 limits the meter in the front and back directions, thereby enabling the testing of the single-phase meter. When it is necessary to test the three-phase meter, the baffle is removed and moved to the front end of the tray. Then, the two three-phase meters are placed on the partition frame 3, and the three-phase meters are limited by the adjusting lever 8 and the baffle. When the terminal meter needs to be tested, the terminal meter is placed on the tray, and the left and right limits of the terminal meter are achieved by sliding the adjustment lever 8, and the front and back limits of the terminal meter are achieved by the baffle.

[0028] Both the pallet and the base plate 1 are provided with positioning holes 12. The positioning holes 12 and the spreading mechanism work together to effectively limit the position of the pallet.

[0029] The tray switching structure includes a base frame 14, inside which two sets of symmetrical sliding pushers 15 are slidably connected. The two sliding pushers 15 slide synchronously in the same direction. Each sliding pusher 15 is connected to three levers 16. The levers 16 cooperate with the sliding levers 6. The sliding of the levers 16 drives the sliding levers 6. The lower end of each sliding pusher 15 is connected to a telescopic cylinder 17 placed inside the base frame 14. The telescopic cylinder 17 drives the sliding pusher 15. The telescopic cylinder 17 extends and retracts, causing the sliding pusher 15 to slide. The sliding of the sliding pusher 15 causes the levers 16 to slide. The levers 16 then drive the sliding levers 6, thereby limiting and fixing the energy meter on the compatibility tray.

[0030] The base frame 14 has two sliding pushers 18 inside, which are located between the two sliding pushers 15. The upper end of the pusher 18 is connected to a pusher plate 19, which cooperates with the adjusting plate 8. The pusher 18 is connected to a pusher cylinder 20 inside the base frame 14. The sliding of the pusher 18 drives the sliding of the adjusting plate 8, thereby realizing the driving adjustment of the adjusting plate 8. When the pusher plate 19 is not in contact with the adjusting plate 8, the adjusting plate 8 is in contact with the pusher plate 19 under the elastic force of the spring.

[0031] The lower end of the base frame 14 is provided with a support base 21, and a lifting cylinder 22 is connected to the support base 21. The lifting cylinder 22 is connected to the base frame 14, and the lifting cylinder 22 realizes the lifting and lowering of the base frame 14. The lifting and lowering of the lifting cylinder 22 drives the lifting and lowering of the base frame 14, thereby enabling the base frame 14 to lift the compatibility tray, ensuring that the height of the tray can be adjusted, which facilitates the subsequent operation of raising and lowering the energy meter.

[0032] The base frame 14 has two symmetrically distributed limiting pins 23 connected inside. A limiting ring plate 24 is coaxially fixed to the limiting pins 23. The limiting pins 23 and the limiting ring plate 24 are integrally formed. The tray is provided with an oil-free bushing 25 that cooperates with the limiting pins 23. Through the cooperation of the limiting pins 23 and the oil-free bushing 25, and the support of the limiting ring plate 24, the compatibility tray is effectively limited, preventing relative sliding between the compatibility tray and the base frame 14.

[0033] The base frame 14 is connected to a limiting rail 27 that cooperates with the pusher frame 18. The pusher frame 18 slides along the limiting rail 27. The base frame 14 is connected to a pad 26 to provide fixed support for the upper structure. The pad 26 is connected to the support base 21.

[0034] In use, the tray first slides on the slide rail. When it is necessary to adjust the single-phase meter, the baffle is located in the middle of the base plate 1. Then, the six single-phase meters are placed on the support frame 5. The support frame 5 limits the left and right directions. Then, the telescopic cylinder 17 extends and retracts to slide the sliding paddle 6. The sliding paddle 6 compresses the spring, thereby limiting the front and rear directions of the single-phase meter. At the same time, the support frame 5 limits the left and right directions of the single-phase meter. After the test is completed, the telescopic cylinder 17 resets, and the sliding paddle 6 resets under the action of the spring. When it is necessary to adjust the three-phase meter, the baffle is removed and moved to the front end of the tray. Then, the two three-phase meters are placed on the partition frame 3. The telescopic cylinder 17 drives the adjusting lever 8, and the adjusting lever 8 and the baffle limit the three-phase meter. When it is necessary to adjust the position of the terminal meter, the terminal meter is placed on the tray, and then the adjustment lever 8 is slidably adjusted by pushing the cylinder 20. The sliding of the adjustment lever 8 limits the left and right movement of the terminal meter, and the baffle limits the front and back movement of the terminal meter.

[0035] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A compatible tray, characterized in that, Includes a base plate (1) and an outer frame (2). The outer frame (2) is located on the upper end of the base plate (1). A partition frame (3) is fixedly connected to the base plate (1). The partition frame (3) divides the base plate (1) into six mounting frames (4). Each mounting frame (4) is connected to a support frame (5). Each support frame (5) has two symmetrically distributed sliding paddles (6) slidably connected inside. The two sliding paddles (6) are fixedly connected to the sliding support rod frame slidably connected inside the support frame (5). The sliding push rod frame (7) is connected to the support frame (5) by a spring. The lower end of the sliding push rod frame (7) is connected to the table base opening mechanism. The base has two symmetrically distributed adjustment levers (8) slidably connected in the middle position. Both adjustment levers (8) are connected to the base plate (1) by springs. The lower end of the adjustment levers (8) is connected to the external driving structure. The upper end of the base is connected to a baffle (9); The lower end of the base plate (1) is connected to a limiting frame (10), which is connected to an external slide rail.

2. A compatible tray according to claim 1, characterized in that, Positioning holes (12) are provided on both the tray (5) and the base plate (1).

3. A tray switching structure, characterized in that, The compatible tray described in claim 2 is provided, wherein the tray switching structure includes a base frame (14), and two sets of sliding pushers (15) that slide in the same direction are slidably connected inside the base frame (14). Each sliding pusher (15) is connected to three levers (16), and the levers (16) cooperate with the sliding paddles (6). The sliding of the levers (16) drives the sliding paddles (6). The lower end of each sliding pusher (15) is connected to a telescopic cylinder (17) placed inside the base frame (14), and the telescopic cylinder (17) drives the sliding pusher (15). The base frame (14) has two pusher frames (18) slidably connected inside. The upper end of the pusher frame (18) is connected to a pusher plate (19). The pusher plate (19) cooperates with the adjustment plate (8). The pusher frame (18) is connected to the pusher cylinder (20) inside the base frame (14). The lower end of the base frame (14) is provided with a support base (21), and a lifting cylinder (22) is connected to the support base (21). The lifting cylinder (22) is connected to the base frame (14), and the lifting of the base frame (14) is realized through the lifting cylinder (22).

4. The tray switching structure according to claim 3, characterized in that, The base frame (14) has two symmetrically distributed limiting pins (23) inside. The limiting pins (23) are coaxially fixedly connected to the limiting ring plate (24). The tray is provided with an oil-free bushing (25) that cooperates with the limiting pins (23).

5. A tray switching structure according to claim 4, characterized in that, The base frame (14) is connected to a slide cylinder (27) that cooperates with the push frame (18), and the push frame (18) slides along the slide cylinder (27).

Citation Information

Patent Citations

  • A kind of electric energy meter turnover tray used in automatic production line

    CN107966597B

  • Fully-compatible electric energy meter tray

    CN110441562A