Intelligent gas meter test power supply tool
By designing a protective structure for the power supply fixture used in testing smart gas meters, the problem of easy contamination of the power supply port was solved, achieving port protection and stable fixation of the gas meter, thus ensuring the safety and reliability of the testing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LORD PRECISION HARDWARE (WUHU) CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-05-29
AI Technical Summary
The power supply port of the smart gas meter test power supply fixture is easily corroded by external contaminants such as dust, water vapor, and oil during daily use or intermittent storage, leading to oxidation, poor contact, or even electrical short circuits, affecting its use.
A smart gas meter test power supply fixture was designed, comprising a base, controller, display, power supply, and ports. The port is detachably protected by a combination of slide rails, slide blocks, square plates, tension springs, handles, and covers to prevent external contaminants from entering. The gas meter is fixed in place to prevent shaking and enhance structural stability by a combination of guide rails, sliders, L-shaped plates, lead screws, limit plates, and tension springs.
It effectively prevents the port from being corroded by contaminants, avoids poor contact or damage, and ensures the stability and safety of the gas meter during the testing process, while facilitating the plugging and unplugging of the port.
Smart Images
Figure CN224305008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas meter testing technology, and in particular to a power supply fixture for testing smart gas meters. Background Technology
[0002] A smart gas meter is a new type of gas metering device that integrates microelectronic control technology, metering technology, communication technology, and sensing technology. It not only possesses the metering functions of a traditional gas meter but also enables intelligent functions such as remote meter reading, prepaid management, real-time monitoring, and alarm notifications. In the research, development, production, and testing of smart gas meters, the test power supply fixture, as a crucial bridge connecting the gas meter to an external power source, plays a key role in providing stable voltage and current to the meter under test.
[0003] The smart gas meter test power supply fixture is a special power supply equipment used in the factory testing, functional verification and maintenance testing of smart gas meters. In the past, during daily use or intermittent storage, the power supply port of the fixture was often exposed and easily corroded by dust, water vapor, oil or other external contaminants, which could lead to pin oxidation, poor contact or even electrical short circuit, thus affecting the use of the fixture. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a power supply fixture for testing smart gas meters, which aims to improve the problem that the power supply port is often exposed during daily use or intermittent storage and is easily corroded by external pollutants.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A power supply fixture for testing smart gas meters includes a base. The base houses a controller, a display, a power supply, and ports. A fixed frame is fixedly connected to the upper surface of the base. A cover plate is slidably connected inside the fixed frame. A slide rail is fixedly connected to the outer wall of the fixed frame. A slide block is slidably connected to the outer wall of the slide rail. A square plate is fixedly connected to the outer wall of the slide block. A tension spring is fixedly connected to the outer wall of the square plate. A second square plate is fixedly connected to the outer wall of both square plates. Handles are fixedly connected to the outer walls of both square plates. L-shaped blocks are fixedly connected to the upper surfaces of both square plates, with the outer walls of the L-shaped blocks located inside the cover plate. A limit component is provided on the outer wall of the slide rail.
[0007] Preferably, the limiting component includes a limiting block, the outer wall of the limiting block is fixedly connected to the outer wall of the slide rail, the left outer wall of the limiting block is disposed on the outer wall of the second square plate, and the right outer wall of the limiting block is disposed on the outer wall of the first square plate.
[0008] Preferably, the fixed frame is internally fixedly connected with a buckle, and the buckle is internally located on the outer wall of the port.
[0009] Preferably, the upper surface of the base is detachably mounted with a guide rail, and the outer wall of the guide rail is slidably connected with a slider.
[0010] Preferably, an L-shaped plate is fixedly connected to the upper surface of the slider, and both the L-shaped plate and the slider are rotatably connected to a lead screw.
[0011] Preferably, the outer wall of the lead screw is threadedly connected to a limiting plate, and the outer wall of the limiting plate is slidably connected to the outer wall of the L-shaped plate.
[0012] Preferably, the limiting plate is slidably connected to a slide rod, the top end of which is fixedly connected to the inside of the L-shaped plate, and the bottom end of which is fixedly connected to the inside of the slider.
[0013] Preferably, a tension spring is fixedly connected to the lower surface of the limiting plate, and the outer wall of the tension spring is fixedly connected to the upper surface of the slider.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, through the cooperation between the slide rail, slide base, square plate one, tension spring one, square plate two, handle and L-shaped block, when the port is not in use, the cover plate can be installed and removed simply by pushing the handles on both sides, preventing external contaminants from entering the interior of the port, avoiding poor contact or corrosion, thereby effectively protecting the port and preventing damage and contamination. At the same time, the buckle makes it easy to place the port, thereby standardizing the cable routing and avoiding tangling and damage.
[0016] 2. In this utility model, the gas meter to be tested is pressed down and fixed by the cooperation between the guide rail, slider, L-shaped plate, lead screw, limit plate, slide rod and tension spring II, so as to prevent the gas meter from shifting due to external force shaking or vibration during the test, thereby enhancing the stability and safety of the structure. At the same time, the fixed gas meter makes it easy to plug and unplug the port during the test. Attached Figure Description
[0017] Figure 1 A perspective view of the intelligent gas meter testing power supply fixture proposed in this utility model;
[0018] Figure 2 A partial structural diagram of the cover plate of the intelligent gas meter test power supply fixture proposed in this utility model;
[0019] Figure 3 This is a partial structural diagram of the limiting block of the intelligent gas meter test power supply fixture proposed in this utility model.
[0020] Figure 4This is a partial structural diagram of the L-shaped plate of the intelligent gas meter testing power supply fixture proposed in this utility model.
[0021] Legend:
[0022] 1. Base; 2. Controller; 3. Display; 4. Power supply; 5. Port; 6. Fixing frame; 7. Cover plate; 8. Slide rail; 9. Slide base; 10. Square plate one; 11. Tension spring one; 12. Square plate two; 13. Handle; 14. L-shaped block; 15. Limiting block; 16. Guide rail; 17. Slider; 18. L-shaped plate; 19. Lead screw; 20. Limiting plate; 21. Slide rod; 22. Tension spring two; 23. Buckle. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides a smart gas meter test power supply fixture, including a base 1. The base 1 is internally equipped with a controller 2, a display 3, a power supply 4, and a port 5. A fixing frame 6 is fixedly connected to the upper surface of the base 1. A cover plate 7 is slidably connected inside the fixing frame 6. A slide rail 8 is fixedly connected to the outer wall of the fixing frame 6. A slide seat 9 is slidably connected to the outer wall of the slide rail 8. A square plate 10 is fixedly connected to the outer wall of the slide seat 9. A tension spring 11 is fixedly connected to the outer wall of the square plate 10. A square plate 2 12 is fixedly connected to the outer wall of the tension spring 11. A handle 13 is fixedly connected to the outer walls of both the square plate 10 and the square plate 2 12. An L-shaped block 14 is fixedly connected to the upper surface of both the square plate 10 and the square plate 2 12. The outer wall of the L-shaped block 14 is located inside the cover plate 7. A limit component is provided on the outer wall of the slide rail 8.
[0025] Specifically, the controller 2, display 3, power supply 4, and port 5 are connected inside the base 1 via cables. The controller 2 is used to set the output voltage, current range, and test time. The display 3 is used to display the current output voltage, current, power, and operating status. The power supply 4 provides a stable DC output. The controller 2, display 3, and power supply 4 are all widely used, so further details about them are omitted. The port 5 is connected to the inside of the base 1 via cables and is configured to match the gas meter model for easy use. The port 5 is located inside the fixing frame 6. When not in use, the cover plate 7 is installed to protect the port 5. The connection structure of square plate 10 and square plate 2 is identical, facilitating synchronous operation of square plate 10 and square plate 2. The fixing frame 6 supports and limits the offset of the slide rail 8. The tension of the tension spring 11 provides support for the L-shaped blocks 14 on both sides inside the cover plate 7, thus enabling the installation of the cover plate 7.
[0026] Reference Figure 3 The limiting component includes a limiting block 15. The outer wall of the limiting block 15 is fixedly connected to the outer wall of the slide rail 8. The left outer wall of the limiting block 15 is set on the outer wall of the square plate 2 12, and the right outer wall of the limiting block 15 is set on the outer wall of the square plate 10.
[0027] Specifically, the limiting block 15 is set between square plate 10 and square plate 2 12 to limit the movement of square plate 10 and square plate 2 12 toward the center of slide rail 8, so that square plate 10 and square plate 2 12 are always on both sides of the center of slide rail 8.
[0028] Reference Figure 2 The fixed frame 6 is internally fixedly connected with a buckle 23, and the buckle 23 is internally located on the outer wall of the port 5;
[0029] Specifically, when port 5 is not in use, the latch 23 is set to be elastic, which makes it easy for the opening of the latch 23 to open, allowing the cable connected to port 5 to slide into the interior of the latch 23. When port 5 is placed on the upper surface of the latch 23, the opening of the latch 23 returns to its original position under the action of elasticity, thereby supporting and limiting port 5. When port 5 is in use, the cable passing through port 5 is slightly smaller than the diameter of the internal groove of the latch 23, allowing the cable to slide inside the latch 23, which facilitates the movement of port 5.
[0030] Reference Figure 1 and Figure 4The upper surface of the base 1 is detachably mounted with a guide rail 16, and a slider 17 is slidably connected to the outer wall of the guide rail 16. An L-shaped plate 18 is fixedly connected to the upper surface of the slider 17, and a lead screw 19 is rotatably connected to the interior of both the L-shaped plate 18 and the slider 17. A limit plate 20 is threadedly connected to the outer wall of the lead screw 19, and the outer wall of the limit plate 20 is slidably connected to the outer wall of the L-shaped plate 18. A slide rod 21 is slidably connected to the interior of the limit plate 20, with the top end of the slide rod 21 fixedly connected to the interior of the L-shaped plate 18 and the bottom end of the slide rod 21 fixedly connected to the interior of the slider 17. A tension spring 22 is fixedly connected to the lower surface of the limit plate 20, and the outer wall of the tension spring 22 is fixedly connected to the upper surface of the slider 17.
[0031] Specifically, the slide block 17 and the L-shaped plate 18 can be disassembled when not needed by the detachable guide rail 16, which facilitates maintenance of the base 1 and reduces space occupation. The guide rail 16 restricts the movement of the slide block 17. The internal parts of the slide block 17 and the L-shaped plate 18 support and limit the rotation of the lead screw 19. The right outer wall of the limiting plate 20 contacts the left outer wall of the L-shaped plate 18. The fixed slide rod 21 restricts the movement of the limiting plate 20. The tension of the tension spring 22 assists the downward movement of the limiting plate 20 and provides additional downward pressure.
[0032] Working principle: When using this fixture, the gas meter is placed on the protective pad on the base 1. The guide rails 16 on both sides move the sliders 17 on both sides toward the center of the base 1, thereby moving the L-shaped plates 18 and the limiting plates 20 on both sides toward the center of the base 1. After moving to the appropriate position, the short rod on the lead screw 19 is rotated, which drives the limiting plate 20 to move downward under the limit of the slide rod 21. Under the tension of the tension spring 22, the limiting plate 20 moves downward to press down and fix the gas meter. The lower surface of the limiting plate 20 is provided with a protective pad that contacts the gas meter, thereby reducing the damage to the gas meter from the downward pressure. The limiting plate 20 applies a downward force to contact the gas meter, preventing the sliders 17 from moving accidentally.
[0033] By pushing the handles 13 on both sides, square plates 10 and 12 move outward from the fixed frame 6, causing the slide block 9 to slide on the outer wall of the slide rail 8. The movement of square plates 10 and 12 stretches the tension spring 11, causing the L-shaped blocks 14 on both sides to move outward, thus sliding out of the cover plate 7 and no longer being limited. The cover plate 7 is then removed, and the cable connecting port 5 and base 1 is removed from the clip 23. Port 5 is then inserted into the gas meter interface. The controller 2, display 3, power supply 4, and port 5 are electrically connected. By operating the controller 2, the power supply 4 provides power, which is transmitted to the gas meter through the cable and port 5. The power supply status of the gas meter is displayed on the display 3, thus enabling the gas meter to be tested and powered. During use, this fixture not only allows for the installation and removal of the cover plate 7 and the protection of port 5, but also allows for the downward pressing and fixing of the gas meter to prevent accidental movement.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A power supply fixture for testing smart gas meters, comprising a base (1), characterized in that: The base (1) is equipped with a controller (2), a display (3), a power supply (4) and a port (5). A fixed frame (6) is fixedly connected to the upper surface of the base (1). A cover plate (7) is slidably connected inside the fixed frame (6). A slide rail (8) is fixedly connected to the outer wall of the fixed frame (6). A slide seat (9) is slidably connected to the outer wall of the slide rail (8). A square plate (10) is fixedly connected to the outer wall of the slide seat (9). A tension spring (11) is fixedly connected to the outer wall of the square plate (10). A square plate (12) is fixedly connected to the outer wall of the tension spring (11). A handle (13) is fixedly connected to the outer walls of both the square plate (10) and the square plate (12). An L-shaped block (14) is fixedly connected to the upper surface of both the square plate (10) and the square plate (12). The outer wall of the L-shaped block (14) is located inside the cover plate (7). A limit component is provided on the outer wall of the slide rail (8).
2. The intelligent gas meter test power supply fixture according to claim 1, characterized in that: The limiting component includes a limiting block (15), the outer wall of the limiting block (15) is fixedly connected to the outer wall of the slide rail (8), the left outer wall of the limiting block (15) is disposed on the outer wall of the second square plate (12), and the right outer wall of the limiting block (15) is disposed on the outer wall of the first square plate (10).
3. The intelligent gas meter test power supply fixture according to claim 1, characterized in that: The fixed frame (6) is internally fixedly connected with a buckle (23), and the buckle (23) is internally located on the outer wall of the port (5).
4. The intelligent gas meter test power supply fixture according to claim 1, characterized in that: The upper surface of the base (1) is detachably mounted with a guide rail (16), and the outer wall of the guide rail (16) is slidably connected with a slider (17).
5. The intelligent gas meter test power supply fixture according to claim 4, characterized in that: An L-shaped plate (18) is fixedly connected to the upper surface of the slider (17), and a lead screw (19) is rotatably connected inside both the L-shaped plate (18) and the slider (17).
6. The intelligent gas meter test power supply fixture according to claim 5, characterized in that: The outer wall of the lead screw (19) is threadedly connected to a limiting plate (20), and the outer wall of the limiting plate (20) is slidably connected to the outer wall of the L-shaped plate (18).
7. The intelligent gas meter test power supply fixture according to claim 6, characterized in that: The limiting plate (20) is slidably connected to a slide rod (21). The top end of the slide rod (21) is fixedly connected to the inside of the L-shaped plate (18), and the bottom end of the slide rod (21) is fixedly connected to the inside of the slider (17).
8. The intelligent gas meter test power supply fixture according to claim 6, characterized in that: The lower surface of the limiting plate (20) is fixedly connected to a tension spring (22), and the outer wall of the tension spring (22) is fixedly connected to the upper surface of the slider (17).