Portable gas meter metering and calibrating device

Abstract

The utility model provides a portable gas meter metrological verification device, which belongs to the technical field of gas meter metrological verification devices, and comprises a bottom plate and a clamping seat, the bottom plate is connected with a support frame plate, the support frame plate is connected with a cylinder, two sides of the cylinder are respectively provided with a first movable rod and a second movable rod, the first movable rod is connected with a first sealing sleeve, and the second movable rod is connected with a second sealing sleeve. A first connecting pipe and a trigger sensor are arranged on one side of the first sealing sleeve, the air cylinder is connected with a lifting plate, a compression cylinder is arranged on one side of the supporting frame plate, a telescopic spring, a piston plate, a magnetic block and an electromagnet are arranged in the compression cylinder, and the compression cylinder is connected with a rubber hose and a power supply box. The gas storage device has the beneficial effects that residual gas in the gas meter and the connecting pipe II can be continuously conveyed into the storage barrel through air compression, and the valve II is closed, so that the gas is collected and stored, the waste of resources is avoided, the pollution to the environment is also avoided, the verification workload of operators is also reduced, and the working efficiency is improved. The efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas meter metrological verification devices, and more specifically, to a portable gas meter metrological verification device. Background Technique

[0002] Gas meters are metrological instruments under key national management, which are commonly used for metering gas consumption in households or industries and commerce. They are an important part to ensure accurate trade settlement and promote people's livelihood development. In recent years, the state has cancelled the production license for gas meters, which makes the ex-post quality supervision of gas meters by metrology institutes more and more important. And the verification of gas meters is an important basis for its quality supervision, which poses new challenges to the on-site verification of gas meters.

[0003] Gas meters need to be metrologically verified before leaving the factory to check whether their metrology is standard. At present, we use natural gas to detect the metrological standard of gas meters. However, the natural gas used for inspection is generally not recycled, but is discharged into the air through burning or direct emission, so it will pollute the air and cause waste of resources at the same time. How to invent a portable gas meter metrological verification device to improve these problems has become an urgent problem for those skilled in the art. Content of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a portable gas meter metrological verification device, aiming to improve the problem that the natural gas used for inspection is generally not recycled, but is discharged into the air through burning or direct emission, so it will pollute the air and cause waste of resources at the same time.

[0005] The utility model is realized as follows:

[0006] The utility model provides a portable gas meter metrological verification device, which includes a bottom plate and a card seat. The bottom plate is connected with a support plate, the support plate is connected with a cylinder, a first movable rod and a second movable rod are respectively arranged on both sides of the cylinder, the first movable rod is connected with a first sealing sleeve, a first connecting pipe and a trigger sensor are arranged on one side of the first sealing sleeve, the cylinder is connected with a lifting plate, a compression cylinder is arranged on one side of the support plate, a telescopic spring, a piston plate, a magnetic block and an electromagnet are arranged inside the compression cylinder, and the compression cylinder is connected with a rubber hose and a power supply box.

[0007] Preferably, the card seat is fixedly connected with the bottom plate, the card seat is clamped with a gas meter, the bottom plate is fixedly connected with the support plate, the support plate is arranged in an "L" shape, and the upper end of the support plate is fixedly connected with the cylinder.

[0008] Preferably, one end of the cylinder is fixedly connected to the lifting plate. An installation slot is provided on the side wall of the lifting plate. The lower side wall of the lifting plate is fixedly connected to the first movable rod and the second movable rod respectively. The first movable rod is connected to the installation slot. The first movable rod and the second movable rod are slidably connected to the side wall of the support plate.

[0009] Preferably, the lower end of the first movable rod is fixedly connected to the first sealing sleeve. A through hole is provided inside the first movable rod. The outer wall of the first sealing sleeve is fixedly connected to the first connecting pipe. The outer wall of the first connecting pipe is fixedly connected to the trigger sensor. A first valve is connected to the first connecting pipe. The first valve is located on one side of the trigger sensor.

[0010] Preferably, the lower end of the second movable rod is fixedly connected to the second sealing sleeve. The outer wall of the second sealing sleeve is fixedly connected to the second connecting pipe. The second connecting pipe is connected to a flow meter and a second valve. Sealing gaskets are fixedly connected to the inner walls of the second movable rod and the first movable rod respectively. The two sealing gaskets are located below the first connecting pipe and the second connecting pipe respectively.

[0011] Preferably, the compression cylinder is fixedly connected to the side wall of the support plate. A one-way intake pipe is fixedly connected to the outer wall of the compression cylinder. The upper end of the compression cylinder is fixedly connected to a rubber hose. One end of the rubber hose away from the compression cylinder is fixedly connected to a one-way exhaust pipe. The one-way exhaust pipe is fixedly connected to the installation slot.

[0012] Preferably, the two ends of the telescopic spring are fixedly connected to the upper inner wall of the compression cylinder and the side wall of the piston plate respectively. The lower side wall of the piston plate is fixedly connected to a magnet. The piston plate is in interference fit with the inner wall of the compression cylinder. The lower end of the compression cylinder is fixedly connected to a power supply box. The power supply box is fixedly connected to an electromagnet.

[0013] The beneficial effects of the present utility model are:

[0014] During the calibration process of the gas meter, the sealing sleeve 1 and the sealing sleeve 2 are respectively inserted into the inlet end and the outlet end of the gas meter through the air cylinder and the lifting plate. After the valve 1 is opened, not only the intake of the connecting pipe 1 is realized, but also the power supply box charges the electromagnet. Therefore, the magnetic block moves downward and is adsorbed by the electromagnet. At the same time, the piston plate drives the telescopic spring to be stretched. Subsequently, after the metrological verification, the valve 1 can be closed. At this moment, the trigger sensor is no longer squeezed, so the power supply box no longer supplies power to the electromagnet. Therefore, the elastic recovery of the telescopic spring drives the piston plate to move upward, compressing the air inside the compression cylinder, and transporting the air to the through hole through the rubber hose and the one-way exhaust pipe. Due to the squeezing flow of the air, the residual gas inside the gas meter and the connecting pipe 2 can be continuously transported to the inside of the storage barrel, and the valve 2 is closed to collect and store the gas, avoiding the waste of resources, avoiding environmental pollution, and reducing the workload of the operator during the verification process, improving the efficiency. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of a portable gas meter metrological verification device provided by an embodiment of the present invention;

[0017] Figure 2 It is a schematic diagram of the rear structure of the support plate of a portable gas meter metrological verification device provided by an embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the lifting plate of a portable gas meter metrological verification device provided by an embodiment of the present invention;

[0019] Figure 4 It is a schematic diagram of the internal structure of the sealing sleeve 1 of a portable gas meter metrological verification device provided by an embodiment of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the compression cylinder of a portable gas meter metrological verification device provided by an embodiment of the present invention.

[0021] In the figure: 1, bottom plate; 2, card seat; 3, gas meter; 4, first sealing sleeve; 5, first connecting pipe; 6, trigger sensor; 7, first valve; 8, support plate; 9, first movable rod; 91, through hole; 10, one-way exhaust pipe; 11, rubber hose; 12, lifting plate; 13, second movable rod; 14, cylinder; 15, second sealing sleeve; 16, second connecting pipe; 17, flowmeter; 18, second valve; 19, compression cylinder; 20, power supply box; 21, one-way intake pipe; 22, installation slot hole; 23, gasket; 24, telescopic spring; 25, piston plate; 26, magnetic block; 27, electromagnet. Specific implementation mode

[0022] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0023] Example, refer to Figures 1 - 5 , a portable gas meter metrological verification device, including a bottom plate 1 and a card seat 2. The bottom plate 1 is connected with a support plate 8, the support plate 8 is connected with a cylinder 14, the two sides of the cylinder 14 are respectively provided with a first movable rod 9 and a second movable rod 13, the first movable rod 9 is connected with a first sealing sleeve 4, one side of the first sealing sleeve 4 is provided with a first connecting pipe 5 and a trigger sensor 6, the cylinder 14 is connected with a lifting plate 12, one side of the support plate 8 is provided with a compression cylinder 19, and inside the compression cylinder 19 are provided with a telescopic spring 24, a piston plate 25, a magnetic block 26 and an electromagnet 27. The compression cylinder 19 is connected with a rubber hose 11 and a power supply box 20.

[0024] Furthermore; the card seat 2 is fixedly connected with the bottom plate 1, the card seat 2 is snap-connected with the gas meter 3, the bottom plate 1 is fixedly connected with the support plate 8, the support plate 8 is arranged in an "L" shape, and the upper end of the support plate 8 is fixedly connected with the cylinder 14.

[0025] It should be noted that: by the snap connection and fixation of the card seat 2 and the gas meter 3, the gas meter 3 can be conveniently and quickly taken and fixed, thus improving the work efficiency.

[0026] Refer to Figures 2 - 5, Further, one end of the cylinder 14 is fixedly connected to the lifting plate 12. An installation slot hole 22 is provided on the side wall of the lifting plate 12. The lower side wall of the lifting plate 12 is fixedly connected to the first movable rod 9 and the second movable rod 13 respectively. The first movable rod 9 is connected to the installation slot hole 22. The first movable rod 9 and the second movable rod 13 are slidably connected to the side wall of the support frame plate 8. The lower end of the first movable rod 9 is fixedly connected to the first sealing sleeve 4. A through hole 91 is provided inside the first movable rod 9. The outer wall of the first sealing sleeve 4 is fixedly connected to the first connecting pipe 5. The outer wall of the first connecting pipe 5 is fixedly connected to the trigger sensor 6. The first connecting pipe 5 is connected to a first valve 7. The first valve 7 is located on one side of the trigger sensor 6. The lower end of the second movable rod 13 is fixedly connected to the second sealing sleeve 15. The outer wall of the second sealing sleeve 15 is fixedly connected to the second connecting pipe 16. The second connecting pipe 16 is connected to a flow meter 17 and a second valve 18. Sealing gaskets 23 are fixedly connected to the inner walls of the second movable rod 13 and the first movable rod 9 respectively. The two sealing gaskets 23 are respectively located below the first connecting pipe 5 and the second connecting pipe 16. The compression cylinder 19 is fixedly connected to the side wall of the support frame plate 8. A one-way intake pipe 21 is fixedly connected to the outer wall of the compression cylinder 19. The upper end of the compression cylinder 19 is fixedly connected to a rubber hose 11. One end of the rubber hose 11 far from the compression cylinder 19 is fixedly connected to a one-way exhaust pipe 10. The one-way exhaust pipe 10 is fixedly connected to the installation slot hole 22. The two ends of the telescopic spring 24 are respectively fixedly connected to the upper end inner wall of the compression cylinder 19 and the side wall of the piston plate 25. The lower side wall of the piston plate 25 is fixedly connected to a magnet 26. The piston plate 25 is in interference fit with the inner wall of the compression cylinder 19. The lower end of the compression cylinder 19 is fixedly connected to a power supply box 20. The power supply box 20 is fixedly connected to an electromagnet 27.

[0027] It should be noted that after the gas meter 3 is fixed, the inlet end and the outlet end of the gas meter 3 are respectively located directly below the first sealing sleeve 4 and the second sealing sleeve 15. Subsequently, the air cylinder 14 is activated to drive the lifting plate 12 to move downward, thereby driving the first movable rod 9 and the second movable rod 13 to move downward, and causing the first sealing sleeve 4 and the second sealing sleeve 15 to be inserted into the inlet end and the outlet end of the gas meter 3 respectively. At the same time, due to the extrusion effect, the sealing gasket 23 is in close contact with the inlet end and the outlet end, thus ensuring the sealing effect of the connection. And in the initial state, the electromagnet 27 is in a power-off state. Then, the first valve 7 and the second valve 18 are opened. The first valve 7 squeezes and triggers the sensor 6, and the trigger sensor 6 is electrically connected to the power supply box 20. Therefore, when the first valve 7 is opened, not only the intake of the first connecting pipe 5 is realized, but also the power supply box 20 charges the electromagnet 27, so that the electromagnet 27 generates magnetism. The upper polarity of the electromagnet 27 is the same as the polarity below the magnetic block 26. Therefore, the magnetic block 26 moves downward and is adsorbed by the electromagnet 27. At the same time, during the downward movement of the piston plate 25, the telescopic spring 24 is stretched, and air is filled into the compression cylinder 19 through the one-way intake pipe 21. During the metrological verification, gas is filled into the first sealing sleeve 4 through the first connecting pipe 5, enters the second sealing sleeve 15 after passing through the gas meter 3, and finally is discharged into the storage barrel through the second connecting pipe 16. Observe whether the flow rate displayed on the gas meter 3 is the same as the flow rate displayed on the flow meter 17. If the data is the same, it can be judged that the metrological verification of the gas meter 3 is standard. If they are different, it indicates that there is an error in the metrological verification of the gas meter 3 and needs to be adjusted. After the verification, the first valve 7 is closed. At this time, the trigger sensor 6 is no longer squeezed, so the power supply box 20 no longer supplies power to the electromagnet 27. Therefore, the elastic recovery of the telescopic spring 24 drives the piston plate 25 to move upward, so that the air inside the compression cylinder 19 is compressed, and the air is transported into the through hole 91 through the rubber hose 11 and the one-way exhaust pipe 10. Due to the squeezing and flowing of the air, the residual gas inside the gas meter 3 and the second connecting pipe 16 can be continuously transported into the storage barrel. Then, the second valve 18 is closed to collect and store the gas, avoiding the waste of resources, avoiding environmental pollution, and reducing the workload of the operator during the verification process, thus improving the efficiency.

[0028] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable gas meter metrological verification device, comprising a bottom plate (1) and a card seat (2), the bottom plate (1) is connected with a support frame plate (8), the support frame plate (8) is connected with a cylinder (14), both sides of the cylinder (14) are respectively provided with a first movable rod (9) and a second movable rod (13), the first movable rod (9) is connected with a first sealing sleeve (4), one side of the first sealing sleeve (4) is provided with a first connecting pipe (5) and a trigger sensor (6), the cylinder (14) is connected with a lifting plate (12), characterized in that, One side of the support plate (8) is provided with a compression cylinder (19). Inside the compression cylinder (19), there are a telescopic spring (24), a piston plate (25), a magnetic block (26), and an electromagnet (27). The compression cylinder (19) is connected to a rubber hose (11) and a power supply box (20).

2. The portable gas meter metrological verification device according to claim 1, characterized in that, The card holder (2) is fixedly connected to the bottom plate (1). The card holder (2) is clamped with a gas meter (3). The bottom plate (1) is fixedly connected to the support plate (8). The support plate (8) is arranged in an "L" shape. The upper end of the support plate (8) is fixedly connected to the cylinder (14).

3. The portable gas meter metrological verification device according to claim 1, characterized in that, One end of the cylinder (14) is fixedly connected to the lifting plate (12). An installation slot hole (22) is formed in the side wall of the lifting plate (12). The lower side wall of the lifting plate (12) is fixedly connected to a first movable rod (9) and a second movable rod (13) respectively. The first movable rod (9) is connected to the installation slot hole (22). The first movable rod (9) and the second movable rod (13) are slidably connected to the side wall of the support plate (8).

4. A portable gas meter metrological verification device according to claim 1, characterized in that, The lower end of the first movable rod (9) is fixedly connected to a first sealing sleeve (4). A through hole (91) is formed inside the first movable rod (9). The outer wall of the first sealing sleeve (4) is fixedly connected to a first connecting pipe (5). The outer wall of the first connecting pipe (5) is fixedly connected to a trigger sensor (6). The first connecting pipe (5) is connected to a first valve (7). The first valve (7) is located on one side of the trigger sensor (6).

5. The portable gas meter metrological verification device according to claim 1, characterized in that, The lower end of the second movable rod (13) is fixedly connected to a second sealing sleeve (15). The outer wall of the second sealing sleeve (15) is fixedly connected to a second connecting pipe (16). The second connecting pipe (16) is connected to a flow meter (17) and a second valve (18). Sealing gaskets (23) are fixedly connected to the inner walls of the second movable rod (13) and the first movable rod (9). The two sealing gaskets (23) are respectively located below the first connecting pipe (5) and the second connecting pipe (16).

6. The portable gas meter metrological verification device according to claim 3, characterized in that, The compression cylinder (19) is fixedly connected to the side wall of the support plate (8). A one-way intake pipe (21) is fixedly connected to the outer wall of the compression cylinder (19). The upper end of the compression cylinder (19) is fixedly connected to the rubber hose (11). One end of the rubber hose (11) away from the compression cylinder (19) is fixedly connected to a one-way exhaust pipe (10). The one-way exhaust pipe (10) is fixedly connected to the installation slot hole (22).

7. The portable gas meter metrological verification device according to claim 1, characterized in that, The two ends of the telescopic spring (24) are respectively fixedly connected to the upper inner wall of the compression cylinder (19) and the side wall of the piston plate (25). The lower side wall of the piston plate (25) is fixedly connected to the magnetic block (26). The piston plate (25) is in interference fit with the inner wall of the compression cylinder (19). The lower end of the compression cylinder (19) is fixedly connected to the power supply box (20). The power supply box (20) is fixedly connected to the electromagnet (27).

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