Adjustable natural gas pipeline meter

Abstract

The utility model relates to the technical field of natural gas pipeline meters, in particular to an adjustable natural gas pipeline meter which comprises a base, two fixing discs are fixedly arranged at the top end of the base, ventilation pipes are fixedly arranged in the two fixing discs, a rotating rod is rotationally connected between the two fixing discs, and two rotating discs are fixedly arranged on the side face of the rotating rod. Wherein one side of one fixed disc is fixedly provided with a placing box, the interior of the placing box is provided with a movable groove, the interior of the movable groove is slidably connected with a limiting rod, and one side of the limiting rod is fixedly provided with a connecting spring. The two turntables can be automatically limited by loosening the grip, so that the time is saved when the turntables are rotated to exchange the two groups of conduits, pressure regulating valves and flowmeters, the downtime is reduced, and the natural gas conveying efficiency of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of natural gas pipeline metering instruments, and in particular to an adjustable natural gas pipeline metering instrument. Background Technology

[0002] Adjustable natural gas pipeline metering instruments are devices used to regulate and measure the pressure of natural gas. They are typically installed on natural gas pipelines with pressure regulating valves and flow meters. The pressure regulating valves adjust the natural gas pressure, and the flow meters detect the natural gas flow rate.

[0003] A public disclosure (announcement) number of CN221763317U discloses a natural gas transmission and distribution pressure regulating metering device, comprising: a protective box, inside which are two fixed discs, each of which is rotatably connected to a rotating disc on one side close to the other; two conduits between the rotating discs, each conduit having a pressure valve and a flow meter on its surface; a limiting component positioned between the fixed discs and the rotating discs to limit the rotation of the rotating disc; and a fixing component positioned on one side of the protective box to secure the protective surface of the protective box. This technology discloses that "this device can limit and fix the rotating disc using the limiting holes and pins in the limiting component, ensuring that the rotating disc is limited after rotation and does not deviate; secondly, the iron plate and locking block in the fixing component can fix the side baffle, thus protecting the pipeline when transporting natural gas."

[0004] In a current natural gas transmission and distribution pressure regulating metering device, the device drives a rotary table to rotate, allowing two sets of conduits, pressure valves, and flow meters to be used alternately. This facilitates the replacement and maintenance of the conduits, pressure valves, and flow meters. When the rotary table needs to be rotated, two pins are removed using a tool. After the rotary table is adjusted, the two pins are driven into the rotary table and the fixed plate using a tool, thus limiting the rotation of the rotary table. To ensure stability when fixing the rotary table, the pins require a large frictional force at the connection between the pins and the fixed plate, making the removal and installation of the pins time-consuming. This, in turn, makes it time-consuming to rotate the rotary table to change the two sets of conduits, pressure valves, and flow meters, increasing downtime and reducing the device's efficiency in transmitting natural gas.

[0005] To address the aforementioned issues, this application proposes an adjustable natural gas pipeline meter. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides an adjustable natural gas pipeline meter. This device allows for easy release of the two turntables by moving the handle, and automatic repositioning of the turntables by releasing the handle. This makes changing the two sets of conduits, pressure regulating valves, and flow meters much faster, reducing downtime and improving the device's efficiency in transporting natural gas. Furthermore, disassembling and assembling the conduits, pressure regulating valves, and flow meters only requires moving the movable plate and sealing cover, making the process convenient and saving time and manpower. This significantly improves the ease of replacement and maintenance of the conduits, pressure regulating valves, and flow meters.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable natural gas pipeline meter, comprising a base, two fixed plates fixedly mounted on the top of the base, each fixed plate having a vent pipe fixedly mounted inside, a rotating rod rotatably connected between the two fixed plates, two turntables fixedly mounted on the side of the rotating rod, a placement box fixedly mounted on one side of one of the fixed plates, a movable groove opened inside the placement box, a limit rod slidably connected inside the movable groove, a connecting spring fixedly mounted on one side of the limit rod, a slider fixedly mounted on the top of the limit rod, a handle fixedly mounted on the top of the slider, two limit grooves opened on the side of one of the turntables, the side of the limit rod fitting into the interior of the corresponding limit groove, a handle fixedly mounted on the side of one of the turntables, two flow pipes inside each of the two turntables, two conduits between the four flow pipes, a pressure regulating valve on the side of each of the two conduits, and a flow meter on the side of each of the two conduits.

[0008] As a preferred embodiment of the adjustable natural gas pipeline meter of this utility model, the top of the placement box is provided with a sliding groove, the inside of the sliding groove is slidably connected to the side of the slider, and the placement box facilitates the limiting of the turntable.

[0009] As a preferred embodiment of the adjustable natural gas pipeline meter of this utility model, each of the two turntables has two fixed grooves inside, and the interior of the four fixed grooves is fixedly connected to the sides of the four flow pipes respectively, so that the turntables can easily drive the flow pipes to rotate.

[0010] As a preferred embodiment of the adjustable natural gas pipeline meter of this utility model, a sealing frame is fixedly provided on the side of each of the four flow pipes, a sealing groove is provided inside each of the four sealing frames, a sealing block is provided inside each of the four sealing grooves, and a sealing cover is fixedly provided on the side of each of the four sealing blocks, the sealing cover facilitating the fixing of the sealing block.

[0011] As a preferred embodiment of the adjustable natural gas pipeline meter of this utility model, the interior of the four sealing caps is fixedly connected to the sides of the two conduits respectively, and the interior of the four sealing blocks is fixedly connected to the sides of the two conduits respectively. The sealing blocks facilitate the limiting of the conduits.

[0012] As a preferred embodiment of the adjustable natural gas pipeline meter of this utility model, sealing plates are fixedly provided on the sides of the four sealing frames, and the sides of the four sealing plates are respectively attached to the inner sides of the four sealing covers. A sealing gasket is fixedly provided on one side of the interior of the four sealing grooves, and one side of the four sealing gaskets is respectively attached to one side of the four sealing blocks. The sealing gaskets facilitate the improvement of the sealing performance at the connection between the sealing frames and the sealing blocks.

[0013] As a preferred embodiment of the adjustable natural gas pipeline meter of this utility model, two positioning shafts are fixedly provided on one side of each of the four sealing covers, and a movable plate is provided on one side of each of the four sealing covers. The interior of each of the four movable plates is slidably connected to the side of each of the eight positioning shafts. Several fixed shafts are fixedly provided on one side of each of the four movable plates, and a positioning disc is fixedly provided at one end of each of the eight positioning shafts. A positioning spring is fixedly provided on one side of each of the eight positioning discs, and one side of each of the eight positioning springs is fixedly connected to the other side of each of the four movable plates. The fixed shafts facilitate the fixing of the sealing frame and the sealing cover together.

[0014] As a preferred embodiment of the adjustable natural gas pipeline meter of this utility model, each of the four sealing frames has several fixing holes on one side, and the interior of the several fixing holes respectively fits against the side of several fixing shafts, so that the sealing frame can limit the sealing block.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. When the upper conduit, pressure regulating valve, and flow meter are damaged and need replacement or maintenance, move the handle backward to disengage the limit rod from the corresponding limit slot in the left turntable, causing the left turntable to lose its limit. Rotate the left turntable by moving the handle, which in turn rotates the rotating rod, causing the right turntable to rotate. Both turntables rotate synchronously, thus rotating the two sets of conduits, pressure regulating valves, and flow meters. After the turntables have rotated, release the handle. The connecting spring pushes the limit rod forward, causing it to enter another limit slot in the left turntable. This limits the left turntable, the rotating rod, and the right turntable, thus fixing the positions of the two sets of conduits, pressure regulating valves, and flow meters. This device allows the two turntables to release their limits by moving the handle and automatically reposition by releasing the handle. This makes changing the two sets of conduits, pressure regulating valves, and flow meters by rotating the turntables more time-efficient, reducing downtime and improving the device's efficiency in transporting natural gas.

[0017] 2. Swap the damaged upper conduit, pressure regulating valve, and flow meter to the lower position. Move the two corresponding movable plates closer together, which in turn moves the corresponding fixed shafts closer together, causing the fixed shafts to disengage from the sealing frame. This causes the sealing cover to lose its limit position. Lower the sealing cover, causing the sealing block to disengage from the sealing frame, allowing the lower conduit, pressure regulating valve, and flow meter to be removed. After the conduit, pressure regulating valve, and flow meter have been replaced or maintained, move the sealing block upwards, allowing it to enter the lower sealing frame. Release the movable plates, and use the positioning spring to push the two movable plates away from each other, causing the corresponding fixed shafts to disengage from each other. This allows the fixed shafts to enter the corresponding lower sealing frame, fixing the sealing frame and sealing cover together, and thus fixing the flow pipe and conduit together. This completes the disassembly and assembly of the conduit, pressure regulating valve, and flow meter. This device only requires moving the movable plates and sealing cover to disassemble and assemble the conduit, pressure regulating valve, and flow meter, making it convenient and saving time and manpower, thereby improving the ease of replacement and maintenance of the conduit, pressure regulating valve, and flow meter. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the segmented structure of the fixed disk of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the placement box of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the sealing cap of this utility model;

[0023] Figure 5 This is an exploded structural diagram of the sealing frame of this utility model;

[0024] Figure 6 This utility model Figure 5 A schematic diagram of the structure at point A.

[0025] In the picture:

[0026] 1. Base; 2. Fixed plate; 3. Vent pipe; 4. Rotating rod; 5. Turntable; 6. Placement box; 7. Limiting rod; 8. Connecting spring; 9. Slider; 10. Handle; 11. Handle; 12. Flow pipe; 13. Guide tube; 14. Pressure regulating valve; 15. Flow meter; 16. Sealing frame; 17. Sealing block; 18. Sealing cover; 19. Sealing sheet; 20. Sealing gasket; 21. Positioning shaft; 22. Movable plate; 23. Fixed shaft; 24. Positioning plate; 25. Positioning spring. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] like Figures 1-6 As shown;

[0030] Adjustable natural gas pipeline meter, including base.

[0031] A review of the public disclosure (announcement) number CN221763317U reveals a natural gas transmission and distribution pressure regulating metering device. To address the existing problems in this prior art, as disclosed in the background section above, "In the use of an existing natural gas transmission and distribution pressure regulating metering device, the device drives a turntable to rotate, allowing two sets of conduits, pressure valves, and flow meters to be used alternately, facilitating the replacement and maintenance of these components. When the turntable needs to be rotated, two pins are removed using a tool. After the turntable is adjusted, the two pins are driven into the turntable and fixed plate using a tool, limiting the turntable's position. To ensure stability when fixing the turntable, the pins require significant friction at the connection point with the fixed plate, making pin removal and installation time-consuming. This, in turn, makes rotating the turntable to change the two sets of conduits, pressure valves, and flow meters time-consuming, increasing downtime and reducing the device's natural gas transmission efficiency." In this context, this problem is clearly present and difficult to solve. Therefore, to solve this technical problem, a limiting shaft and a connecting spring are added to this application.

[0032] Furthermore:

[0033] like Figures 1 to 6 As shown:

[0034] Based on the above: The adjustable natural gas pipeline meter includes a base 1, with two fixed plates 2 fixed at the top of the base 1. Each fixed plate 2 has a vent pipe 3 fixed inside. A rotating rod 4 is rotatably connected between the two fixed plates 2. Two turntables 5 are fixed to the side of the rotating rod 4. A placement box 6 is fixed to one side of one of the fixed plates 2. A movable groove is opened inside the placement box 6, and a limit rod 7 is slidably connected inside the movable groove. A connecting spring 8 is fixed to one side of the limit rod 7, and one side of the connecting spring 8 is fixedly connected to one side of the movable groove. A slider 9 is fixed to the top of the limit rod 7, and a handle 10 is fixed to the top of the slider 9. Two limit grooves are opened on the side of one of the turntables 5, and the side of the limit rod 7 fits into the corresponding limit groove. A handle 11 is fixed to the side of one of the turntables 5. Two flow pipes 12 are provided inside each of the two turntables 5. Two conduits 13 are provided between the four flow pipes 12. A pressure regulating valve 14 is provided on the side of each of the two conduits 13, and a flow meter 15 is provided on the side of each of the two conduits 13.

[0035] In this implementation plan: Natural gas is delivered through the vent pipe 3, allowing it to pass through the upper conduit 13. The natural gas pressure is regulated by the upper pressure regulating valve 14, and the natural gas flow rate is detected by the upper flow meter 15. When the upper conduit 13, pressure regulating valve 14, and flow meter 15 are damaged and require replacement or maintenance, the handle 10 is moved backward, causing the slider 9 to move backward, which in turn causes the limit rod 7 to move backward. This causes the limit rod 7 to disengage from the corresponding limit groove in the left turntable 5, resulting in the left turntable 5 losing its limit. The handle 11 then rotates the left turntable 5, which in turn rotates the rotating rod 4, which in turn rotates the right turntable 5. Both turntables 5 rotate synchronously, causing the two sets of conduits 13, pressure regulating valves 14, and flow meters 15 to rotate. This causes the original lower conduit 13, pressure regulating valve 14, and flow meter 15 to move upward and connect with the vent pipe 3. The original upper conduit 13, pressure regulating valve 14, and flow meter 15 are then moved upward and connected to the vent pipe 3. 4. The flow meter 15 moves downward, allowing natural gas to flow normally during the replacement and maintenance of the conduit 13, pressure regulating valve 14, and flow meter 15, thus improving the efficiency of natural gas transportation. After the turntable 5 has rotated, the handle 10 is released, and the limiting rod 7 is pushed forward by the connecting spring 8, so that the limiting rod 7 enters another limiting groove in the left turntable 5, thereby limiting the left turntable 5, limiting the rotating rod 4, and limiting the right turntable 5. This fixes the positions of the two sets of conduits 13, pressure regulating valve 14, and flow meter 15. This device can release the limiting of the two turntables 5 by moving the handle 10, and automatically limit the limiting of the two turntables 5 by releasing the handle 10. This makes it more time-saving to rotate the turntables 5 to replace the two sets of conduits 13, pressure regulating valve 14, and flow meter 15, reducing downtime and improving the efficiency of natural gas transportation.

[0036] In an optional embodiment: the top of the placement box 6 is provided with a groove, and the inside of the groove is slidably connected to the side of the slider 9.

[0037] In this embodiment, the placement box 6 facilitates the positioning of the turntable 5.

[0038] In an optional embodiment: each of the two turntables 5 has two fixing grooves inside, and the interior of the four fixing grooves is fixedly connected to the sides of the four flow pipes 12 respectively.

[0039] In this embodiment, the turntable 5 facilitates the rotation of the flow tube 12.

[0040] In an optional embodiment: a sealing frame 16 is fixedly provided on the side of each of the four flow tubes 12, a sealing groove is provided inside each of the four sealing frames 16, a sealing block 17 is provided inside each of the four sealing grooves, and a sealing cover 18 is fixedly provided on the side of each of the four sealing blocks 17.

[0041] In this embodiment, the sealing cap 18 facilitates the fixing of the sealing block 17.

[0042] In an optional embodiment: the interior of the four sealing caps 18 is fixedly connected to the sides of the two conduits 13 respectively, and the interior of the four sealing blocks 17 is fixedly connected to the sides of the two conduits 13 respectively.

[0043] In this embodiment, the sealing block 17 facilitates the limiting of the conduit 13.

[0044] In an optional embodiment: sealing plates 19 are fixedly provided on the sides of the four sealing frames 16, and the sides of the four sealing plates 19 are respectively attached to the inner sides of the four sealing covers 18. Sealing pads 20 are fixedly provided on one side of the four sealing grooves, and one side of the four sealing pads 20 is respectively attached to one side of the four sealing blocks 17.

[0045] In this embodiment, the sealing gasket 20 facilitates the improvement of the sealing performance at the connection between the sealing frame 16 and the sealing block 17.

[0046] In an optional embodiment: two positioning shafts 21 are fixedly provided on one side of each of the four sealing covers 18, and a movable plate 22 is provided on one side of each of the four sealing covers 18. The interior of each of the four movable plates 22 is slidably connected to the side of each of the eight positioning shafts 21. Several fixed shafts 23 are fixedly provided on one side of each of the four movable plates 22. A positioning disc 24 is fixedly provided at one end of each of the eight positioning shafts 21. A positioning spring 25 is fixedly provided on one side of each of the eight positioning discs 24. One side of each of the eight positioning springs 25 is fixedly connected to the other side of each of the four movable plates 22.

[0047] In this embodiment, the fixed shaft 23 facilitates the fixing of the sealing frame 16 and the sealing cover 18 together.

[0048] In an optional embodiment: each of the four sealing frames 16 has a plurality of fixing holes on one side, and the interior of the plurality of fixing holes is respectively in contact with the side of the plurality of fixing shafts 23.

[0049] In this embodiment, the sealing frame 16 facilitates the limiting of the sealing block 17.

[0050] The working principle and usage process of this utility model are as follows: Natural gas is transported through the vent pipe 3, allowing it to pass through the upper conduit 13. The natural gas pressure is regulated by the upper pressure regulating valve 14, and the natural gas flow rate is detected by the upper flow meter 15. When the upper conduit 13, pressure regulating valve 14, and flow meter 15 are damaged and require replacement or maintenance, the handle 10 is moved backward, thereby causing the slider 9 to move backward, which in turn causes the limit rod 7 to move backward. This causes the limit rod 7 to disengage from the corresponding limit groove in the left turntable 5, allowing the left turntable 5 to lose its limit. The handle 11 then rotates the left turntable 5, which in turn rotates the rotating rod 4, which in turn rotates the right turntable 5. Both turntables 5 rotate synchronously, thereby causing the two sets of conduits 13, pressure regulating valve 14, and flow meter 15 to rotate. This causes the original lower conduit 13, pressure regulating valve 14, and flow meter 15 to move upwards and connect to the vent pipe 3, while the original upper conduit 13, pressure regulating valve 14, and flow meter 15 move downwards. This allows natural gas to flow normally during replacement and maintenance of the conduit 13, pressure regulating valve 14, and flow meter 15, improving the efficiency of natural gas transportation. After the turntable 5 has rotated, releasing the handle 10 pushes the limiting rod 7 forward via the connecting spring 8, causing the limiting rod 7 to enter another limiting groove in the left turntable 5. This limits the left turntable 5, thereby limiting the rotating rod 4 and the right turntable 5, thus fixing the positions of the two sets of conduits 13, pressure regulating valve 14, and flow meter 15. This device can release the limiting of both turntables 5 by moving the handle 10 and releasing the handle. Setting 10 allows the two turntables 5 to automatically limit their positions, making it more time-efficient to rotate the turntables 5 to swap the two sets of conduits 13, pressure regulating valves 14, and flow meters 15, reducing downtime and improving the unit's efficiency in transporting natural gas. The damaged upper conduit 13, pressure regulating valve 14, and flow meter 15 are swapped to the lower position. Moving the corresponding two movable plates 22 causes them to move closer together, which in turn causes the corresponding fixed shafts 23 to move closer together, disengaging the fixed shafts 23 from the sealing frame 16. This causes the sealing cover 18 to lose its limit position, and the sealing cover 18 is moved downwards, causing the sealing block 17 to disengage from the sealing frame 16. This allows the lower conduit 13, pressure regulating valve 14, and flow meter 15 to be removed. 5. After replacement or maintenance, move the sealing block 17 upwards so that it enters the lower sealing frame 16. The sealing plate 19 improves the sealing performance at the connection between the sealing frame 16 and the sealing cover 18, and the sealing gasket 20 improves the sealing performance at the connection between the sealing frame 16 and the sealing block 17. This ensures a high level of sealing at the connection between the flow pipe 12 and the conduit 13. Loosen the movable plate 22, and the positioning spring 25 pushes the two movable plates 22 away from each other, thereby causing several corresponding fixed shafts 23 to move away from each other. This allows the fixed shafts 23 to enter the corresponding lower sealing frame 16, thus fixing the sealing frame 16 and the sealing cover 18 together, and thus fixing the flow pipe 12 and the conduit 13 together. This completes the disassembly and assembly of the conduit 13, the pressure regulating valve 14, and the flow meter 15.This device allows for easy assembly and disassembly of the conduit 13, pressure regulating valve 14, and flow meter 15 by simply moving the movable plate 22 and the sealing cover 18. This facilitates the removal and assembly of these components, saving time and manpower, and thus improving the ease of replacement and maintenance of the conduit 13, pressure regulating valve 14, and flow meter 15.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A natural gas pipeline meter with adjustable, comprising a base (1), characterized in that: The top end of the base (1) is fixedly provided with two fixed discs (2), the inside of each of the two fixed discs (2) is fixedly provided with a ventilation pipe (3), a rotating rod (4) is rotatably connected between the two fixed discs (2), the side of the rotating rod (4) is fixedly provided with two rotating discs (5), one side of one of the fixed discs (2) is fixedly provided with a placing box (6), the inside of the placing box (6) is provided with a movable slot, the inside of the movable slot is slidably connected with a limiting rod (7), one side of the limiting rod (7) is fixedly provided with a connecting spring (8), one side of the connecting spring (8) is fixedly connected with the inside of the movable slot, the top end of the limiting rod (7) is fixedly provided with a sliding block (9), the top end of the sliding block (9) is fixedly provided with a handle (10), the side of one of the rotating discs (5) is provided with two limiting slots, the side of the limiting rod (7) is fitted with the inside of the corresponding limiting slot, the side of one of the rotating discs (5) is fixedly provided with a handle (11), the inside of each of the two rotating discs (5) is provided with two flow pipes (12), two pipes (13) are arranged between the four flow pipes (12), the side of each of the two pipes (13) is provided with a pressure regulating valve (14), the side of each of the two pipes (13) is provided with a flow meter (15).

2. The adjustable natural gas pipeline meter of claim 1, wherein: The top end of the placing box (6) is provided with a sliding groove, the inside of the sliding groove is slidably connected with the side of the sliding block (9).

3. The adjustable natural gas pipeline meter of claim 1, wherein: The inside of each of the two rotating discs (5) is provided with two fixed slots, the inside of each of the four fixed slots is fixedly connected with the side of the four flow pipes (12).

4. The adjustable natural gas pipeline meter of claim 1, wherein: The side of each of the four flow pipes (12) is fixedly provided with a sealing frame (16), the inside of each of the four sealing frames (16) is provided with a sealing groove, the inside of each of the four sealing grooves is provided with a sealing block (17), the side of each of the four sealing blocks (17) is fixedly provided with a sealing cover (18).

5. The adjustable natural gas pipeline meter of claim 4, wherein: The inside of each of the four sealing covers (18) is fixedly connected with the side of each of the two pipes (13), the inside of each of the four sealing blocks (17) is fixedly connected with the side of each of the two pipes (13).

6. The adjustable natural gas pipeline meter of claim 5, wherein: The side of each of the four sealing frames (16) is fixedly provided with a sealing sheet (19), the side of each of the four sealing sheets (19) is fitted with the inside of each of the four sealing covers (18), one side of the inside of each of the four sealing grooves is fixedly provided with a sealing gasket (20), one side of each of the four sealing gaskets (20) is fitted with one side of each of the four sealing blocks (17).

7. The adjustable natural gas pipeline meter of claim 6, wherein: One side of each of the four sealing covers (18) is fixedly provided with two positioning shafts (21), each of the four sealing covers (18) is provided with a movable plate (22), the inside of each of the four movable plates (22) is slidably connected with the side of each of the eight positioning shafts (21), one side of each of the four movable plates (22) is fixedly provided with a plurality of fixed shafts (23), one end of each of the eight positioning shafts (21) is fixedly provided with a positioning disc (24), one side of each of the eight positioning discs (24) is fixedly provided with a positioning spring (25), one side of each of the eight positioning springs (25) is fixedly connected with the other side of each of the four movable plates (22).

8. The adjustable natural gas pipeline meter of claim 7, wherein: The side of the four sealing frames (16) is provided with a plurality of fixing holes, and the inner part of the plurality of fixing holes is respectively combined with the side of a plurality of fixing shafts (23).

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