Gas rotary flow meter

Abstract

This invention relates to the field of metering equipment technology and discloses a gas rotary flow meter, including a flow meter body. A bearing is fixed to the left end of the flow meter body, and a rotating frame is rotatably connected to the flow meter body through the bearing. Turntables are rotatably connected to the upper and lower surfaces of the rotating frame. Connecting plates are symmetrically arranged on the inner side of the rotating frame, and a housing is fixed to the left end of the two connecting plates. During use, the housing can be rotated and adjusted according to the installation position and angle of the flow meter by operating structures such as the first and second arc frames, the fixed cylinder, and the screw, which facilitates the recording and operation of instrument panel data by personnel. By setting up structures such as the slide, the fixed plate, and the baffle, the totalizer body inside the housing is isolated from the external environment, preventing external gases and liquids from seeping into the housing and corroding the totalizer body, thereby extending the service life of the totalizer body and reducing the difficulty of personnel maintenance and repair and replacement costs.

Description

Technical Field

[0001] This invention relates to the field of metering equipment technology, specifically to a gas rotary flow meter. Background Technology

[0002] A gas rotary flow meter is a volumetric instrument used to measure the flow rate of gaseous media in a closed pipeline. It is widely used for flow measurement of gases such as natural gas, coal gas, inert gases, and air. It is an ideal flow measurement device for urban gas, oilfield chemical, and scientific research departments both domestically and internationally.

[0003] The totalizer in the existing gas rotary flow meter cannot be freely adjusted according to the installation angle of the flow meter, which makes it extremely inconvenient for meter readers to record data on the instrument panel. At the same time, due to the poor sealing of the existing totalizer casing, it is easily corroded by rainwater, water vapor and gas seepage, which reduces the service life of the internal electronic components of the totalizer and increases the cost of later maintenance and replacement. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a gas rotary flow meter, which solves the problems mentioned in the background.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a gas rotary flow meter, comprising a flow meter body, a bearing fixed to the left end of the flow meter body, a rotating frame rotatably connected to the flow meter body via the bearing, a turntable rotatably connected to both the upper and lower surfaces of the rotating frame, symmetrically arranged connecting plates on the inner side of the rotating frame, a housing fixed to the left ends of the two connecting plates, a rotating shaft fixed to the opposite sides of the two connecting plates, the opposite ends of the two rotating shafts respectively penetrating to the front and rear of the rotating frame, and the connecting plates rotatably connected to the rotating frame via the rotating shafts, a slide rail slidably connected inside the housing, a sealing plate fixed to the left end of the slide rail located on the left side of the housing, fixed plates symmetrically fixed to both the upper and lower surfaces of the housing, a gear rotatably connected between the two fixed plates, and rotating grooves formed on both the upper and lower surfaces of the housing. The groove is connected to the interior of the housing. The end of the gear near the slide is located inside the rotating groove. The upper and lower surfaces of the slide are provided with several toothed grooves. The slide is connected to the gear through the toothed grooves. A fixing rod is fixed to the left end of the gear. A first enclosure plate is fixed to the left end of the fixing rod. The left ends of the two first enclosure plates are located on the left side of the sealing plate, and a second enclosure plate is formed on one side. The two first enclosure plates are located on the outside of the sealing plate and the housing. Threaded grooves are symmetrically provided on the left side of the sealing plate. A screw block is threadedly connected inside the threaded groove. A rotating rod is fixed to the left side of the screw block. The rotating rod passes through to the left side of the two second enclosure plates and is fixed with a rotating block. The left end of the flow meter body is located inside the bearing and is connected to a pressure sensor and a flow sensor from top to bottom. The totalizer body is fixed to the rear surface inside the slide.

[0008] Preferably, a baffle is fixed between the two fixed plates on the outside of the gear, a baffle is slidably connected inside the baffle, a baffle is slidably connected inside the baffle, and a baffle is fixedly connected at the left end of the baffle to the side of the fixed rod away from the housing.

[0009] Preferably, each of the two turntables has an arc frame one fixed on its opposite sides. An arc frame two is slidably connected inside the arc frame one, and an arc strip is slidably connected inside the arc frame two. An extrusion groove is formed through the arc strip. A spring is fixed between the right end of the arc strip and the interior of the arc frame two. A through groove is formed on the outer surface of the arc frame one, communicating with the interior of the arc frame one. Several toothed blocks are fixed on both the front and rear surfaces of the through groove. A fixed cylinder is fixed on the outer surface of the arc frame two, located inside the through groove. A screw is threadedly connected inside the fixed cylinder. The end of the screw near the arc frame two extends into the extrusion groove. A toothed cylinder is fitted onto the outer surface of the fixed cylinder, and symmetrical sliding grooves are formed on the outer surface of the fixed cylinder. A slider is slidably connected inside the slide groove. The two opposing ends of the sliders are fixedly connected to the inner wall of the toothed cylinder. A tension spring is fixed between the end of the slider near the extrusion groove and the inner wall of the slide groove. The toothed cylinder engages with the toothed block. A slot 1 is symmetrically opened on the right side of the housing. The left end of the arc frame is located inside the slot 1. A slot 2 is opened on the inner surface of the slot 1 away from the connecting plate. A groove is opened on the left end of the arc strip. Movable grooves are opened on both the front and rear surfaces inside the groove. A movable rod is movably connected inside the two movable grooves. A locking block is fixed on the outer surface of the movable rod inside the groove. The opposing ends of the two locking blocks respectively penetrate into the two slot 2s.

[0010] Preferably, an instrument panel is embedded in the front surface of the housing.

[0011] Preferably, both the pressure sensor and the flow sensor are connected to the totalizer body, and the totalizer body is electrically connected to the instrument panel.

[0012] Preferably, the right side of the rotating block is respectively attached to the left side of one of the two surrounding panels.

[0013] Preferably, an operating block is fixed to the end of the screw away from the extrusion groove.

[0014] Preferably, both the first enclosure and the second enclosure are U-shaped structures.

[0015] Preferably, the front and rear surfaces of the second baffle are respectively attached to the opposite sides of the two fixed plates, and the front and rear surfaces of the third baffle are respectively attached to the opposite sides of the two fixed plates.

[0016] Preferably, the left side of the extrusion groove has an inclined structure and is in contact with the outer surface of the screw.

[0017] (III) Beneficial Effects

[0018] This invention provides a gas rotary flow meter, which has the following beneficial effects:

[0019] During use, this invention allows for rotational adjustment of the housing by manipulating structures such as arc frame one, arc frame two, fixed cylinder, screw, and gear cylinder, based on the flow meter's installation position and angle. This facilitates the recording and operation of instrument panel data by personnel. Furthermore, by incorporating structures such as slides, fixed plates, baffle one, baffle two, baffle three, gears, rotating grooves, toothed grooves, fixed rods, enclosure one, and sealing plates, the integrator body inside the housing is isolated from the external environment. This prevents external gases and liquids from seeping into the housing and corroding the integrator body, extending its service life and reducing the difficulty of later maintenance and repair / replacement costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 Enlarged structural diagram of point A in the middle;

[0022] Figure 3 For the present invention Figure 1 Enlarged structural diagram of section B in the middle;

[0023] Figure 4 For the present invention Figure 1 Enlarged structural diagram of point C in the middle;

[0024] Figure 5 This is a cross-sectional view of the threaded groove in this invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the shell in this invention.

[0026] In the diagram: 1. Flow meter body; 2. Bearing; 3. Rotary frame; 4. Turntable; 5. Connecting plate; 6. Rotating shaft; 7. Housing; 8. Slide; 9. Fixing plate; 10. Baffle 1; 11. Baffle 2; 12. Baffle 3; 13. Gear; 14. Rotary groove; 15. Gear groove; 16. Fixing rod; 17. Enclosure 1; 18. Sealing plate; 19. Threaded groove; 20. Screw block; 21. Rotating rod; 22. Rotating block; 23. Pressure sensor; 24. Flow sensor 25. Arc frame one; 26. Arc frame two; 27. Arc strip; 28. Extrusion groove; 29. ​​Spring; 30. Through groove; 31. Tooth block; 32. Fixed cylinder; 33. Screw; 34. Tooth cylinder; 35. Slide groove; 36. Slider; 37. Tension spring; 38. Slot one; 39. Slot two; 40. Enclosure two; 41. Groove; 42. Movable groove; 43. Movable rod; 44. Locking block; 45. Totalizer body; 46. Instrument panel; 47. Operating block. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figure 1-6As shown, the present invention provides a technical solution: a gas rotary flow meter, including a flow meter body 1, a bearing 2 fixed to the left end of the flow meter body 1, a rotating frame 3 rotatably connected to the flow meter body 1 via the bearing 2, a turntable 4 rotatably connected to both the upper and lower surfaces of the rotating frame 3, connecting plates 5 symmetrically arranged on the inner side of the rotating frame 3, a housing 7 jointly fixed to the left end of the two connecting plates 5, a rotating shaft 6 fixed to the opposite sides of the two connecting plates 5, the opposite ends of the two rotating shafts 6 respectively penetrating to the front and rear of the rotating frame 3, and the connecting plates 5 rotatably connected to the rotating frame 3 via the rotating shafts 6, a slide 8 slidably connected inside the housing 7, a sealing plate 18 fixed to the left end of the slide 8 on the left side of the housing 7, and a fixed plate 18 symmetrically fixed to both the upper and lower surfaces of the housing 7. A fixed plate 9 is rotatably connected to two fixed plates 9. Rotary grooves 14 are formed on both the upper and lower surfaces of the housing 7, communicating with the interior of the housing 7. One end of the gear 13 near the slide 8 is located inside the rotary groove 14. Several toothed grooves 15 are formed on both the upper and lower surfaces of the slide 8, meshing with the gear 13 through the toothed grooves 15. A fixed rod 16 is fixed to the left end of the gear 13, and a first enclosure plate 17 is fixed to the left end of the fixed rod 16. A second enclosure plate 40 is formed on one side of each of the two enclosure plates 17 located on the left side of the sealing plate 18. The two enclosure plates 17 are located outside the sealing plate 18 and the housing 7. Threaded grooves 19 are symmetrically formed on the left side of the sealing plate 18, with threads connecting the inside of the threaded grooves 19. A screw block 20 is attached to the left side of which a rotating rod 21 is fixed. The rotating rod 21 extends through the left side of the two enclosure plates 40 and is fixed with a rotating block 22. The left end of the flow meter body 1 is located inside the bearing 2 and is connected from top to bottom to a pressure sensor 23 and a flow sensor 24. The totalizer body 45 is fixed to the rear surface inside the slide 8. When the totalizer needs to be adjusted, the two rotating blocks 22 can be rotated to move the screw block 20 to the left inside the threaded groove 19 and push the rotating block 22 to the left, so that the rotating block 22 is away from the enclosure plate 40 and no longer limits the enclosure plate 40. At this time, the two enclosure plates 40 can be rotated to open the enclosure plate 17 and the fixing rod 16 around the gear 13. When wheel 13 rotates, the slide 8 and the sealing plate 18 slide out to the left through the meshing tooth groove 15. At the same time, baffle 3 12 slides into baffle 2 11 and baffle 2 11 slides into baffle 1 10 for storage. After the totalizer body 45 is set, slide the slide 8 to the right end to contact the two gears 13. Rotate and adjust the angle of the two fixing rods 16, and then push the slide 8 to slide in. The gears 13 re-mesh and connect with the tooth groove 15, causing the fixing rods 16, the first enclosure 17, and the second enclosure 40 to rotate and close, blocking the gap between the sealing plate 18 and the housing 7. At the same time, baffle 3 12 and baffle 2 11 slide out to block the gears 13. Then rotate and tighten the rotating block 22 to complete the installation operation.

[0029] Furthermore, a baffle 10 is fixed between the two fixed plates 9 on the outside of the gear 13. A baffle 2 11 is slidably connected inside the baffle 10. A baffle 3 12 is slidably connected inside the baffle 2 11. The left end of the baffle 3 12 is fixedly connected to the side of the fixed rod 16 away from the housing 7, thus shielding the gear 13 and preventing external gas or liquid from entering the housing 7.

[0030] Furthermore, each of the two turntables 4 has an arc frame 25 fixed on its opposite sides. An arc frame 26 is slidably connected inside the arc frame 25. An arc strip 27 is slidably connected inside the arc frame 26. An extrusion groove 28 is opened through the arc strip 27. A spring 29 is fixed between the right end of the arc strip 27 and the inside of the arc frame 26. A through groove 30 is opened on the outer surface of the arc frame 25, which is connected to the inside of the arc frame 25. Several toothed blocks 31 are fixed on the front and rear surfaces of the through groove 30. A fixed cylinder 32 is fixed on the outer surface of the arc frame 26 inside the through groove 30. A screw 33 is threadedly connected inside the fixed cylinder 32. The end of the screw 33 near the arc frame 26 passes through the extrusion groove 28. A toothed cylinder 34 is sleeved on the outer surface of the fixed cylinder 32. A sliding groove 35 is symmetrically opened on the outer surface of the fixed cylinder 32. A slider 36 is slidably connected inside the sliding groove 35. The opposite ends of the two sliders 36 are both connected to the inner side of the toothed cylinder 34. The wall is fixedly connected, and a tension spring 37 is fixed between the end of the slider 36 near the extrusion groove 28 and the inner wall of the slide groove 35. The toothed cylinder 34 and the toothed block 31 are engaged. The right side of the housing 7 is symmetrically provided with a first slot 38. The left end of the arc frame 25 is located inside the first slot 38. The inner surface of the first slot 38 away from the connecting plate 5 is provided with a second slot 39. The left end of the arc strip 27 is provided with a groove 41. The front and rear surfaces of the groove 41 are provided with movable grooves 42. The two movable grooves 42 are connected to the movable rod 43. The outer surface of the movable rod 43 is located inside the groove 41 and a locking block 44 is fixed. The opposite ends of the two locking blocks 44 pass through the two second slots 39 respectively. By operating the two sets of arc frame structures, the housing 7 can be rotated and supported, so that the housing 7, the instrument panel 46 and other structures can be adjusted according to the position and angle of the flow meter body 1 during installation, which is convenient for personnel to record data and carry out maintenance later.

[0031] Furthermore, an instrument panel 46 is embedded on the front surface of the housing 7. Through the calculation of the single-chip microcomputer set inside the totalizer body 45, the instrument panel 46 displays the standard flow rate and pressure of the gas flowing through the flow meter.

[0032] Furthermore, both the pressure sensor 23 and the flow sensor 24 are connected to the totalizer body 45, and the totalizer body 45 is electrically connected to the instrument panel 46. The pressure sensor 23 detects the pressure, the flow sensor 24 detects the flow, and the data is displayed on the instrument panel 46.

[0033] Furthermore, the right side of the rotating block 22 is respectively attached to the left side of the two side panels 17, and the two side panels 17 cannot be rotated and opened under the attachment limit of the rotating block 22.

[0034] Furthermore, an operating block 47 is fixed to the end of the screw 33 away from the extrusion groove 28, and the screw 33 can be rotated more conveniently by operating the operating block 47.

[0035] Furthermore, both the first enclosure 17 and the second enclosure 40 are U-shaped structures, which can cover the gap between the sealing plate 18 and the shell 7 after assembly.

[0036] Furthermore, the front and rear surfaces of the second baffle 11 are respectively attached to the opposite sides of the two fixed plates 9, and the front and rear surfaces of the third baffle 12 are respectively attached to the opposite sides of the two fixed plates 9, so that the gear 13 can be completely covered, preventing the inside of the rotating groove 14 from communicating with the outside, and preventing external air and water vapor from entering the inside of the housing 7 through the rotating groove 14 and corroding the internal structure.

[0037] Furthermore, the left side of the extrusion groove 28 has a sloping structure and is in contact with the outer surface of the screw 33, so that the screw 33 can force the arc strip 27 to slide by extruding the sloping surface of the extrusion groove 28.

[0038] In summary, the workflow of this invention is as follows: During use, the flow meter body 1 is connected to the gas pipeline. The position of the housing 7 can be adjusted according to the pipeline location, ensuring the instrument panel 46 is placed horizontally for easy observation and recording. During adjustment, the arc frame 25 and other structures on the side requiring rotation are rotated and offset. This is achieved by rotating the screw 33, causing it to move outward and no longer press against the inner inclined surface of the compression groove 28. The arc strip 27, now without its limit, slides inward under the pull of the spring 29. During this sliding, the movable groove 42 presses against the movable rod 43, guiding the locking block 44 to slide inward and disengage from the locking groove 39. Then, the toothed cylinder 34 is pulled... Disengage it from between the toothed blocks 31. At this point, the operator can manipulate the fixing cylinder 32 to slide the second arc frame 26 within the first arc frame 25, causing the left end of the second arc frame 26 to disengage from the first slot 38. Then, rotate the first arc frame 25 and other structures away from the housing 7 via the turntable 4. Simultaneously, the other side's first arc frame 25 and second arc frame 26 can be operated for extension and retraction to support the rotation of the housing 7. On the other side: pull the toothed cylinder 34 outwards and slide it away from the toothed blocks 31. Then, operate the fixing cylinder 32 to slide the second arc frame 26. The second arc frame 26 extends and pushes against the rotating housing 7. Once it reaches the appropriate position, release the toothed cylinder. 34. The tension spring 37 and the slider 36 cause the gear cylinder 34 to slide and engage with the gear block 31 for fixation. At this time, the arc frame 1 25 and the arc frame 26 support the housing 7, completing the rotation adjustment of the housing 7. When the integrator needs to be debugged, the two rotating blocks 22 can be rotated to move the screw block 20 to the left inside the threaded groove 19 and push the rotating block 22 to the left, so that the rotating block 22 is away from the second enclosure 40 and no longer limits the second enclosure 40. At this time, the two second enclosures 40 can be rotated to open the first enclosure 17 and the fixing rod 16 around the gear 13. When the gear 13 rotates, the sliding frame 8 and the sealing plate 16 are engaged through the meshing tooth groove 15. Plate 18 slides out to the left, while baffle 3 12 slides into baffle 2 11. Baffle 2 11 slides into baffle 1 10 for storage. After setting up the totalizer body 45, slide the slide 8 to the right end to contact the two gears 13. Rotate and adjust the angle of the two fixing rods 16, and then push the slide 8 in. The gears 13 re-engage with the tooth groove 15, causing the fixing rods 16, the first enclosure 17, and the second enclosure 40 to rotate and close, blocking the gap between the sealing plate 18 and the housing 7. At the same time, baffle 3 12 and baffle 2 11 slide out to block the gears 13. Then rotate and tighten the rotating block 22 to complete the installation operation.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas rotary flow meter, comprising a flow meter body (1), characterized in that: A bearing (2) is fixed to the left end of the flow meter body (1). The flow meter body (1) is rotatably connected to a rotating frame (3) through the bearing (2). Turntables (4) are rotatably connected to the upper and lower surfaces of the rotating frame (3). Connecting plates (5) are symmetrically arranged on the inner side of the rotating frame (3). A housing (7) is fixed to the left end of the two connecting plates (5). A rotating shaft (6) is fixed to the opposite side of the two connecting plates (5). The opposite ends of the two rotating shafts (6) pass through the front and rear of the rotating frame (3), and the connecting plates (5) are rotatably connected to the rotating frame (3) through the rotating shafts (6). The housing (7) slides inside. A slide (8) is connected to the housing (7). A sealing plate (18) is fixed to the left end of the slide (8) on the left side of the housing (7). Fixing plates (9) are symmetrically fixed to the upper and lower surfaces of the housing (7). A gear (13) is rotatably connected between the two fixing plates (9). Rotary grooves (14) are provided on both the upper and lower surfaces of the housing (7). The rotary grooves (14) are connected to the interior of the housing (7). One end of the gear (13) near the slide (8) is located inside the rotary groove (14). Several toothed grooves (15) are provided on both the upper and lower surfaces of the slide (8). The slide (8) connects to the gear (13) through the toothed grooves (15). 13) Meshing connection, a fixing rod (16) is fixed to the left end of the gear (13), a first enclosure plate (17) is fixed to the left end of the fixing rod (16), and a second enclosure plate (40) is formed on one side of each of the two first enclosure plates (17) located on the left side of the sealing plate (18). The two first enclosure plates (17) are located outside the sealing plate (18) and the housing (7). Threaded grooves (19) are symmetrically opened on the left side of the sealing plate (18). A screw block (20) is threaded inside the threaded groove (19). A rotating rod (21) is fixed to the left side of the screw block (20). The rotating rod (21) passes through to the left side of the two second enclosure plates (40). On the side, and a rotating block (22) is fixed thereon. The left end of the flow meter body (1) is located inside the bearing (2) and connected from top to bottom to a pressure sensor (23) and a flow sensor (24). The back surface inside the slide (8) is fixed with an integrator body (45). Between the two fixed plates (9), a baffle one (10) is fixed outside the gear (13). A baffle two (11) is slidably connected inside the baffle one (10). A baffle three (12) is slidably connected inside the baffle two (11). The left end of the baffle three (12) is fixedly connected to the side of the fixed rod (16) away from the housing (7).

2. The gas rotary flow meter according to claim 1, characterized in that: Both turntables (4) are fixed with an arc frame one (25) on opposite sides. An arc frame two (26) is slidably connected inside the arc frame one (25). An arc strip (27) is slidably connected inside the arc frame two (26). An extrusion groove (28) is formed through the arc strip (27). A spring (29) is fixed between the right end of the arc strip (27) and the inside of the arc frame two (26). A through groove (30) is formed on the outer surface of the arc frame one (25). The through groove (30) is connected to the interior of the first arc frame (25). Several toothed blocks (31) are fixed on both the front and rear surfaces of the through groove (30). A fixed cylinder (32) is fixed on the outer surface of the second arc frame (26) inside the through groove (30). A screw (33) is threaded inside the fixed cylinder (32). One end of the screw (33) near the second arc frame (26) passes through the interior of the extrusion groove (28). A toothed cylinder (34) is sleeved on the outer surface of the fixed cylinder (32). A sliding groove (35) is symmetrically opened on the outer surface of the fixed cylinder (32). A slider (36) is slidably connected inside the sliding groove (35). The opposite ends of the two sliders (36) are fixedly connected to the inner sidewall of the toothed cylinder (34). One end of the slider (36) near the extrusion groove (28) is fixed to the inner sidewall of the toothed cylinder (34). A tension spring (37) is fixed between the end and the inner wall of the slide groove (35). The toothed cylinder (34) engages with the toothed block (31). The right side of the housing (7) is symmetrically provided with a slot 1 (38). The left end of the arc frame 1 (25) is located inside the slot 1 (38). The inner surface of the slot 1 (38) away from the connecting plate (5) is provided with a slot 2 (39). The left end of the arc strip (27) is provided with a groove (41). The front and rear surfaces of the groove (41) are provided with movable grooves (42). The two movable grooves (42) are connected to the movable rod (43). The outer surface of the movable rod (43) is fixed with a block (44) inside the groove (41). The opposite ends of the two blocks (44) pass through the two slot 2 (39) respectively.

3. The gas rotary flow meter according to claim 1, characterized in that: The front surface of the housing (7) is fitted with an instrument panel (46).

4. The gas rotary flow meter according to claim 3, characterized in that: The pressure sensor (23) and the flow sensor (24) are both connected to the totalizer body (45), and the totalizer body (45) is electrically connected to the instrument panel (46).

5. The gas rotary flow meter according to claim 1, characterized in that: The right side of the rotating block (22) is respectively attached to the left side of the two surrounding panels (17).

6. The gas rotary flow meter according to claim 2, characterized in that: An operating block (47) is fixed to one end of the screw (33) away from the extrusion groove (28).

7. The gas rotary flow meter according to claim 1, characterized in that: Both the first enclosure panel (17) and the second enclosure panel (40) are U-shaped structures.

8. The gas rotary flow meter according to claim 1, characterized in that: The front and rear surfaces of the second baffle (11) are respectively attached to the opposite sides of the two fixed plates (9), and the front and rear surfaces of the third baffle (12) are respectively attached to the opposite sides of the two fixed plates (9).

9. The gas rotary flow meter according to claim 2, characterized in that: The left side of the extrusion groove (28) is a sloping structure and is in contact with the outer surface of the screw (33).

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