A gas meter side cover diaphragm recovery device
By using a force-equalizing method that combines lifting and stretching modules, the gas meter side cover diaphragm can be efficiently recycled, solving the problems of resource waste and high cost in existing technologies and improving recycling efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ZHENLAN INSTR TECH CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, gas meters are recycled using violent dismantling methods, which result in the complete scrapping of components such as the diaphragm, left side cover, and right side cover, leading to serious resource waste and high costs.
The mechanism employs a force-equalizing method that combines lifting and stretching modules, using two sets of cylinders to achieve precise and rapid separation of the side covers, avoiding damage to the side covers, diaphragms, and mechanism. The mechanical structure ensures that the left and right side covers are separated by uniform force.
It improved recycling efficiency and quality, with a diaphragm recycling rate of 99.8% and a side cover recycling rate of 98%. The overall leakage value was stable and met the process requirements, and the dismantling efficiency was increased by 70%.
Smart Images

Figure CN224542641U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas meter technology, specifically a gas meter side cover diaphragm recovery device. Background Technology
[0002] The side cover and diaphragm of a gas meter are key sealing components inside the gas meter, installed at the connection between the side cover and the meter body. Their main function is to seal and prevent leakage, stopping gas from leaking from the gap between the side cover and the meter body. At the same time, they also prevent external dust, moisture, and other impurities from entering the meter, ensuring the metering accuracy and operational safety of the gas meter.
[0003] When it is necessary to recycle defective gas meters, the traditional method of handling them is to use violent destruction to dismantle them. This will cause the diaphragm, left side cover, right side cover and other components to be scrapped as a whole, resulting in serious waste of resources and high costs.
[0004] Based on the above reasons, this utility model designs a gas meter side cover diaphragm recycling device. Through the cooperation of lifting and stretching modules, the side cover is accurately and quickly separated by uniform force, avoiding damage to the side cover, diaphragm and mechanism, and achieving efficient recycling. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a gas meter side cover diaphragm recycling device. By using a combination of lifting and stretching modules, the side cover is precisely and quickly separated using a uniform force method, avoiding damage to the side cover, diaphragm, and mechanism, and achieving efficient recycling.
[0006] To achieve the above objectives, this utility model provides a gas meter side cover diaphragm recovery device, including a frame, which comprises an upper part and a lower part. On the upper part of the frame, on the left and right sides, are two cylinders mounted on a cylinder mounting plate. A force-bearing strip is located inside the two cylinders, and a force-bearing strip is located above the force-bearing strip. A pull rod connected to the two cylinders is located outside the force-bearing strip. At the bottom of the upper part of the frame, a mounting plate is provided, and a mounting fixing plate is installed above the mounting plate. A recovery mechanism is placed inside the mounting fixing plate. Below the mounting plate, a cylinder passes through a base plate. On the lower sides of the mounting plate, guide rods one and two pass through the base plate, respectively.
[0007] A copper sleeve is provided on the tie rod and inside the first stress bar.
[0008] Guide rod one and guide rod two are each connected to the base plate via a bearing.
[0009] Guide rod one and guide rod two are symmetrically distributed along cylinder one.
[0010] An inclined guide frame for retrieving the side panels is provided on each side of the frame.
[0011] A peeling bar for extending into the side cover of the movement is provided below the second stress bar.
[0012] An electrical control box is installed on one side of the lower part of the frame, and the electrical control box is electrically connected to cylinder one and cylinder two respectively.
[0013] Compared with existing technologies, this utility model uses two sets of cylinders to achieve the lifting and stretching functions. The mechanical structure ensures that the left and right side covers are evenly separated by force, avoiding damage to the various components of the movement. This effectively improves the recycling efficiency and quality of the recovered parts, and the recycling process is stable and reliable, compatible with various movements. Tested: The recovered mechanism achieved a 100% pass rate in single-chamber sealing tests, with leakage values stable at 7-18 Pa (standard value <35 Pa). The overall machine leakage value was 110-135 Pa (standard value <150 Pa), and the diaphragm recovery rate reached 99.8%. The front side cover recovery rate reached 98.4%, and the rear side cover recovery rate reached 98%, both meeting process requirements. Furthermore, through this recycling method and the verification of comprehensive recycling combination modes (recovered side cover + recovered diaphragm, recovered side cover + new diaphragm, recovered diaphragm + new side cover), the single-chamber test pass rate was 100%, and the proportion of recyclable components in a single disassembly exceeded 98%. Compared to manual operation, the disassembly efficiency using this device was increased by more than 70%. Attached Figure Description
[0014] Figure 1 This is a front view of the present invention.
[0015] Figure 2 This is a side view of the present invention.
[0016] Explanation of reference numerals in the attached figures: 1. Frame, 2. Mounting plate, 3. Force bar one, 4. Base plate, 5. Mounting and fixing plate, 6. Guide rod one, 7. Guide rod two, 8. Cylinder mounting plate, 9. Tie rod, 10. Electrical control box, 12. Bearing, 13. Cylinder one, 14. Cylinder two, 15. Peeling rod, 16. Copper sleeve, 17. Force bar two. Detailed Implementation
[0017] The present invention will now be further described with reference to the accompanying drawings.
[0018] See Figures 1-2This utility model provides a gas meter side cover diaphragm recovery device, including a frame 1, which includes an upper part and a lower part. On the upper left and right sides of the upper part of the frame 1, there are cylinders 14 mounted on cylinder mounting plates 8. A force-bearing strip 17 is provided inside the cylinder 14, and a force-bearing strip 3 is provided above the force-bearing strip 17. A pull rod 9 connected to the cylinder 14 is provided outside the force-bearing strip 3. A mounting plate 2 is provided at the bottom of the upper part of the frame 1, and a mounting fixing plate 5 is installed above the mounting plate 2. The mechanism for recovery is placed inside the mounting fixing plate 5. A cylinder 13 passing through the bottom plate 4 is provided below the mounting plate 2. Guide rod 6 and guide rod 7 passing through the bottom plate 4 are respectively provided on the lower sides of the mounting plate 2.
[0019] A copper sleeve 16 is provided on the pull rod 9 and inside the force bar 3, which can effectively prevent wear during continuous operation.
[0020] Guide rod 6 and guide rod 7 are respectively connected to the base plate 4 through a bearing 12.
[0021] Guide rod 6 and guide rod 7 are symmetrically distributed along cylinder 13.
[0022] An inclined guide frame for retrieving the side plate is provided on each side of frame 1.
[0023] Below the second force bar 17, there is a peeling rod 15 for extending into the side cover of the movement. The bottom of the peeling rod 15 is larger to better fix it inside the side cover.
[0024] An electrical control box 10 is provided on one side of the lower part of the frame 1. The electrical control box 10 is electrically connected to cylinder 13 and cylinder 2 14 respectively.
[0025] Working principle: See Figures 1-2This invention requires minimal adjustment. The gas meter's movement to be recycled is installed inside the mounting plate 5. Upon activation, cylinder 13 rises to the designated position, causing the stripping rod 15 to extend into the cavity at the top of the movement's side cover. Since the side cover is typically riveted to the movement, cylinders 14 synchronously push the force-bearing bars 3 and 17 outwards, ensuring even separation of the left and right side covers and preventing damage to components. After stripping, cylinder 13 quickly resets, and the side covers fall into the inclined guide frames on both sides due to gravity, completing the recycling process. At this point, only manual removal of the movement with the diaphragm intact is required. The electrical control box 10 serves as the power control unit and is electrically connected to cylinder 13 and cylinder 2 14 respectively. It includes a control circuit board that can program the cylinder's movements. It also works with a solenoid valve to precisely control the opening and closing of the cylinder. In addition, it is equipped with a position sensor that can preset and determine the specific coordinates of the mounting plate 5, thereby ensuring the precise insertion and peeling operation of the movement side cover.
[0026] The above are merely preferred embodiments of this utility model, intended only to aid in understanding the method and core concept of this application. The scope of protection of this utility model is not limited to the above embodiments; all technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the scope of protection of this utility model.
[0027] This invention comprehensively solves the shortcomings of existing technologies that use violent disassembly during the recycling of gas meter movements, resulting in the complete scrapping of components such as the diaphragm, left side cover, and right side cover, leading to serious resource waste and high costs. By using a cylinder to vertically lift the movement and simultaneously peel it off from both sides, the side covers riveted to the movement can be subjected to uniform and stable force, thus preventing damage to the movement, diaphragm, and side covers. This greatly improves the efficiency of disassembly and the recycling rate. The disassembled side covers and diaphragm can be almost completely preserved in good condition, significantly reducing production costs.
Claims
1. A gas meter side cover diaphragm recovery device, comprising a frame (1), characterized in that, The frame (1) includes an upper part and a lower part. On the upper left and right sides of the frame (1), there are cylinders two (14) mounted on cylinder mounting plates (8). On the inner side of cylinders two (14), there is a force-bearing bar two (17). On the upper side of force-bearing bar two (17), there is a force-bearing bar one (3). On the outer side of force-bearing bar one (3), there is a pull rod (9) connected to cylinders two (14). At the bottom of the upper part of the frame (1), there is a mounting plate (2). On the upper side of the mounting plate (2), there is a mounting fixing plate (5). The inside of the mounting fixing plate (5) is placed the mechanism for recycling. On the lower side of the mounting plate (2), there is cylinder one (13) passing through the bottom plate (4). On the lower sides of the mounting plate (2), there are guide rod one (6) and guide rod two (7) passing through the bottom plate (4).
2. The gas meter side cover diaphragm recovery device according to claim 1, characterized in that, A copper sleeve (16) is provided on the tie rod (9) and inside the force-bearing bar (3).
3. The gas meter side cover diaphragm recovery device according to claim 1, characterized in that, The guide rod one (6) and guide rod two (7) are respectively connected to the base plate (4) through a bearing (12).
4. The gas meter side cover diaphragm recovery device according to claim 3, characterized in that, The guide rod one (6) and guide rod two (7) are symmetrically distributed along the cylinder one (13).
5. The gas meter side cover diaphragm recovery device according to claim 1, characterized in that, An inclined guide frame for retrieving the side plate is provided on each side of the frame (1).
6. The gas meter side cover diaphragm recovery device according to claim 1, characterized in that, A peeling rod (15) for extending into the side cover of the movement is provided below the second force bar (17).
7. The gas meter side cover diaphragm recovery device according to claim 1, characterized in that, An electrical control box (10) is provided on one side of the lower part of the frame (1), and the electrical control box (10) is electrically connected to the first cylinder (13) and the second cylinder (14).