A gas flow meter

Abstract

The utility model discloses a gas flowmeter, including the connecting pipe, the opposite both ends of connecting pipe are equipped with the air inlet and the gas outlet, the middle part of connecting pipe is equipped with the flowmeter body between air inlet and gas outlet, the one end of connecting pipe is equipped with the annular groove, and the inside of connecting pipe one end is slidably fitted with two filter plates and dry cotton corresponding with air inlet, and the periphery of two filter plates all is equipped with a plurality of clamping grooves with annular groove intercommunication. The utility model discloses through two filter plates, can carry out the interception filtration to the solid particle including in the gas, thereby reduces the situation that solid particle impact connects the inside or flowmeter body lower end of pipe, effectively improved the service life of flowmeter body, through setting up dry cotton, can carry out the drying treatment to the moisture including in the gas, thereby reduces the situation that moisture enters the inside of connecting pipe leads to the influence flowmeter body measurement result appears.

Description

Technical Field

[0001] This utility model relates to the field of gas flow meter technology, and specifically to a gas flow meter. Background Technology

[0002] A gas flow meter is an instrument that measures the flow rate of gas and is installed in a pipeline to record the amount of gas flowing through it. It can measure gases such as coal gas, air, nitrogen, acetylene, phosgene, hydrogen, natural gas, liquefied petroleum gas, and hydrogen peroxide.

[0003] Although gas flow meters can detect gas in pipelines, solid particles may be trapped in the gas, impacting and damaging the flow meter. Furthermore, high humidity levels in the gas can affect the accuracy of the detection. Therefore, there is an urgent need to design a gas flow meter to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a gas flow meter to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A gas flow meter includes a connecting pipe with an inlet and an outlet at opposite ends. A flow meter body is installed in the middle of the connecting pipe between the inlet and the outlet. An annular groove is formed at one end of the connecting pipe. Two filter plates and a drying cotton are slidably fitted inside the connecting pipe, corresponding to the inlet. Multiple slots communicating with the annular groove are formed on the periphery of both filter plates. L-shaped locking blocks corresponding to the slots are elastically and slidably fitted on the opposite inner sides of the annular groove.

[0007] A bidirectional screw is rotatably fitted inside the annular groove. Both ends of the bidirectional screw are threaded with annular plates, and push rods are rotatably fitted between the two annular plates and the multiple L-shaped locking blocks.

[0008] Furthermore, multiple sliding grooves are provided on the relatively inner sides of the annular groove, and a slider is installed at one end of each of the multiple L-shaped blocks. A spring is installed between each of the multiple sliding grooves and the multiple sliders, and the slider is slidably engaged in the sliding groove.

[0009] Furthermore, each of the L-shaped blocks has a groove at its other end, and each of the two annular plates has a plurality of concave blocks installed on opposite sides, and each of the concave blocks and the grooves has a rotating rod rotatably engaged within it.

[0010] Furthermore, the two ends of the push rod are fixed to the two adjacent rotating rods, a worm gear is installed in the middle of the bidirectional screw, two openings are opened on the periphery of the connecting pipe, and a worm gear that meshes with the worm gear is rotatably engaged in the annular groove.

[0011] Furthermore, a sealing gasket is installed in both openings, the worm gear corresponds to one of the openings, a turntable is installed at one end of the worm gear, and the two annular plates slide in fit on the inner side of the annular groove.

[0012] Furthermore, a sleeve corresponding to the flow meter body is installed in another opening. A connecting plate is installed on the periphery of the flow meter body and the upper end of the sleeve. Multiple interconnected slots are opened on the periphery of both connecting plates, and bolts are installed in the multiple slots.

[0013] Furthermore, both ends of the plurality of bolts are threaded with nuts, the inner side of the sleeve is provided with a threaded groove, and the periphery of the flow meter body is provided with a threaded coil that is threaded with the threaded groove. Both opposite ends of the connecting pipe are provided with flange plates.

[0014] Furthermore, a sensing probe is installed at the lower end of the flow meter body. The sensing probe is located inside the connecting pipe and corresponds to the air inlet and the air outlet. The drying cotton is located between the two filter plates.

[0015] In the above technical solution, the gas flow meter provided by this utility model has the following beneficial effects:

[0016] 1. By using two filter plates, solid particles in the gas can be intercepted and filtered, thereby reducing the occurrence of solid particles impacting the inside of the connecting pipe or the lower end of the flow meter body, effectively improving the service life of the flow meter body.

[0017] 2. The drying cotton installed can dry the moisture contained in the gas, thereby reducing the possibility of moisture entering the connecting pipe and affecting the measurement results of the flow meter, and effectively improving the detection accuracy of the flow meter.

[0018] 3. The bidirectional screw is threaded into two annular plates, driving them to move synchronously relative to each other. This causes multiple push rods to rotate and engage, pushing or pulling multiple L-shaped locking blocks. This allows the L-shaped locking blocks to engage or disengage with multiple slots, thus establishing or disengaging the connection between the two filter plates and the connecting pipe. This enables the installation and disassembly of the two filter plates and the drying cotton, facilitating cleaning and improving the filtration efficiency of the filter plates and the drying efficiency of the drying cotton. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a structural front view of an embodiment of a gas flow meter according to the present invention.

[0021] Figure 2 This is a schematic diagram of the connecting pipe structure provided in an embodiment of the gas flow meter of this utility model.

[0022] Figure 3 This is a schematic diagram of the filter plate structure provided in an embodiment of a gas flow meter according to the present invention.

[0023] Figure 4 This is a schematic diagram of the slide structure provided in an embodiment of the gas flow meter of this utility model.

[0024] 1. Connecting pipe; 2. Air inlet; 3. Air outlet; 4. Flow meter body; 5. Annular groove; 6. Filter plate; 7. Drying cotton; 8. Slot; 9. L-shaped locking block; 10. Bidirectional screw; 11. Annular plate; 12. Push rod; 13. Slide groove; 14. Slider; 15. Spring; 16. Concave block; 17. Rotating rod; 18. Worm gear; 19. Opening; 20. Worm; 21. Turntable; 22. Pipe sleeve; 23. Connecting plate; 24. Bolt; 25. Nut; 26. Threaded groove; 27. Threaded coil; 28. Induction probe. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown in the figure, a gas flow meter provided by this utility model includes a connecting pipe 1. An air inlet 2 and an air outlet 3 are provided at opposite ends of the connecting pipe 1. A flow meter body 4 is installed in the middle of the connecting pipe 1 between the air inlet 2 and the air outlet 3. An annular groove 5 is provided at one end of the connecting pipe 1. Two filter plates 6 and a drying cotton 7 corresponding to the air inlet 2 are slidably fitted inside the connecting pipe 1. Multiple slots 8 connected to the annular groove 5 are provided on the periphery of the two filter plates 6. L-shaped locking blocks 9 corresponding to the locking slots 8 are elastically and slidably fitted on the opposite inner sides of the annular groove 5. A bidirectional screw 10 is rotatably fitted inside the annular groove 5. Both ends of the bidirectional screw 10 are threaded with annular plates 11, and push rods 12 are rotatably fitted between the two annular plates 11 and the multiple L-shaped locking blocks 9.

[0027] In this embodiment, a connecting pipe 1 is included, with an air inlet 2 and an air outlet 3 at opposite ends of the connecting pipe 1, and a flow meter body 4 located between the air inlet 2 and the air outlet 3 is installed in the middle of the connecting pipe 1.

[0028] Specifically, the lower end of the flow meter body 4 is equipped with a sensing probe 28, which is located inside the connecting pipe 1 and corresponds to the air inlet 2 and the air outlet 3. The drying cotton 7 is located between the two filter plates 6. Through the sensing probe 28, the temperature, pressure, flow rate, etc. of the gas can be detected.

[0029] In this embodiment, an annular groove 5 is provided at one end of the connecting pipe 1, and two filter plates 6 and drying cotton 7 corresponding to the air inlet 2 are slidably fitted inside the connecting pipe 1. Multiple slots 8 connected to the annular groove 5 are provided on the periphery of the two filter plates 6.

[0030] Specifically, multiple sliding grooves 13 are provided on the inner sides of the annular groove 5, and a slider 14 is installed at one end of each of the multiple L-shaped blocks 9. A spring 15 is installed between the multiple sliding grooves 13 and the multiple sliders 14, and the sliders 14 are slidably engaged in the sliding grooves 13. By the sliders 14 being slidably engaged in the sliding grooves 13, the L-shaped blocks 9 can only move up and down within the annular groove 5, thereby guiding the L-shaped blocks 9.

[0031] In this embodiment, the inner sides of the annular groove 5 are elastically and slidably fitted with L-shaped locking blocks 9 corresponding to the locking slot 8. The annular groove 5 is rotatably fitted with a bidirectional screw 10. Both ends of the bidirectional screw 10 are threadedly fitted with annular plates 11, and push rods 12 are rotatably fitted between the two annular plates 11 and the multiple L-shaped locking blocks 9.

[0032] Specifically, the other end of each of the multiple L-shaped blocks 9 is provided with a groove, and multiple concave blocks 16 are installed on the opposite side of each of the two annular plates 11, and rotating rods 17 are rotatably engaged in the multiple concave blocks 16 and the multiple grooves.

[0033] Specifically, the two ends of the push rod 12 are fixed to the two adjacent rotating rods 17, the middle of the bidirectional screw 10 is equipped with a worm gear 18, the connecting pipe 1 has two openings 19 on its periphery, and the annular groove 5 is rotatably fitted with a worm 20 that meshes with the worm gear 18. Through the worm 20, the worm 20 meshes with the worm gear 18 and rotates, thereby driving the bidirectional screw 10 to rotate, which effectively improves the overall linkage and prepares for the next step of installing or disassembling the two filter plates 6.

[0034] Specifically, sealing gaskets are installed in both openings 19, and the worm gear 20 corresponds to one of its openings 19. A turntable 21 is installed at one end of the worm gear 20, and two annular plates 11 are slidably fitted inside the annular groove 5. The two sealing gaskets can reduce gas leakage and seal the two openings 19.

[0035] Specifically, another opening 19 is equipped with a sleeve 22 corresponding to the flow meter body 4. Both the periphery of the flow meter body 4 and the upper end of the sleeve 22 are equipped with connecting plates 23. Both connecting plates 23 have multiple interconnected slots on their periphery, and each slot is equipped with a bolt 24. Through the multiple bolts 24, multiple nuts 25 are threadedly engaged with the two ends of the multiple bolts 24, thereby fixing the flow meter body 4 and the sleeve 22 together.

[0036] Specifically, both ends of the multiple bolts 24 are threaded with nuts 25, the inner side of the sleeve 22 is provided with a threaded groove 26, and the periphery of the flow meter body 4 is provided with a threaded coil 27 that is threaded with the threaded groove 26. Flange plates are provided at both ends of the connecting pipe 1. Through the provided threaded groove 26, the threaded groove 26 and the threaded coil 27 are threadedly engaged, so that the flow meter body 4 and the sleeve 22 can be firmly fixed together, and at the same time, it is convenient to install or disassemble the flow meter body 4.

[0037] Working steps: 1. When installing two filter plates 6 and drying cotton 7, first insert one filter plate 6, drying cotton 7, and the other filter plate 6 into the interior of one end of the connecting pipe 1 in sequence. Then rotate the turntable 21, which can drive the worm gear 20 to rotate, so that the worm gear 20 meshes with the worm wheel 18 and rotates, thereby driving the bidirectional screw 10 to rotate, so that the bidirectional screw 10 is threadedly engaged with the two annular plates 11, thereby driving the two annular plates 11 to move away from each other in the annular groove 5. At this time, multiple push rods 12 drive multiple rotating rods 17 to rotate and engage in multiple grooves and multiple concave blocks 16, which can change the tilt angle of multiple push rods 12 and push multiple L-shaped locking blocks 9 synchronously. At this time, multiple sliders 14 slide in multiple sliding grooves 13, and multiple springs 15 simultaneously elastically extend and retract, so that one end of multiple L-shaped locking blocks 9 extends into multiple locking grooves 8 and engages with them, thereby fixing the two filter plates 6 to the connecting pipe 1, realizing the installation of the two filter plates 6 and drying cotton 7.

[0038] 2. When installing the flow meter body 4, first insert the lower end of the flow meter body 4 into the sleeve 22 and rotate the flow meter body 4. At this time, the threaded groove 26 and the threaded coil 27 are threadedly engaged, thereby fixing the flow meter body 4 and the sleeve 22 together. At the same time, insert multiple bolts 24 into multiple slots, and then insert multiple nuts 25 into the two ends of multiple bolts 24 and rotate them, so that the multiple nuts 25 and the two ends of multiple bolts 24 are threadedly engaged, thereby firmly connecting the flow meter body 4 and the sleeve 22 together, thus realizing the installation of the flow meter body 4. When disassembling the flow meter body 4, the operation is reversed.

[0039] 3. When gas needs to be measured, the gas is introduced into the connecting pipe 1 through the inlet 2. At this time, the two filter plates 6 intercept and filter the solid particles mixed in the gas, and the drying cotton 7 dries the moisture contained in the gas. At this time, the sensing probe 28 measures the temperature, pressure, flow rate and flow rate of the gas. At the same time, the flow meter body 4 processes the detected information and converts it into a signal. Finally, the measured gas is discharged through the outlet 3.

[0040] Fourth, when it is necessary to disassemble the two filter plates 6 and the drying cotton 7, rotating the turntable 21 in the opposite direction can drive the worm gear 20 to rotate in the opposite direction, so that the worm gear 20 meshes with the worm wheel 18 in the opposite direction, thereby driving the bidirectional screw 10 to rotate in the opposite direction, so that the bidirectional screw 10 engages with the two annular plates 11 in the opposite direction, thereby driving the two annular plates 11 to move closer to each other in the annular groove 5. At this time, multiple push rods 12 drive multiple rotating rods 17 to rotate and engage in multiple grooves and multiple concave blocks 16, which can change the tilt angle of multiple push rods 12 and pull back multiple L-shaped locking blocks 9 simultaneously. At this time, multiple sliders 14 slide in multiple sliding grooves 13, and multiple springs 15 simultaneously elastically extend and retract, so that one end of multiple L-shaped locking blocks 9 extends out of multiple locking grooves 8 and cancels the locking relationship with them, thereby canceling the fixed relationship between the two filter plates 6 and the connecting pipe 1, realizing the disassembly of the two filter plates 6 and the drying cotton 7.

[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gas flow meter, comprising a connecting pipe (1), characterized in that, The connecting pipe (1) has an air inlet (2) and an air outlet (3) at opposite ends. The middle of the connecting pipe (1) is equipped with a flow meter body (4) located between the air inlet (2) and the air outlet (3). One end of the connecting pipe (1) has an annular groove (5). The inside of one end of the connecting pipe (1) is slidably fitted with two filter plates (6) and a drying cotton (7) corresponding to the air inlet (2). The two filter plates (6) are provided with multiple slots (8) that communicate with the annular groove (5) on their periphery. The inner sides of the annular groove (5) are elastically and slidably fitted with L-shaped blocks (9) corresponding to the slots (8). A bidirectional screw (10) is rotatably fitted inside the annular groove (5). Both ends of the bidirectional screw (10) are threaded with annular plates (11), and push rods (12) are rotatably fitted between the two annular plates (11) and the multiple L-shaped blocks (9).

2. A gas flow meter according to claim 1, characterized in that, The annular groove (5) has multiple sliding grooves (13) on its inner side. Each of the multiple L-shaped blocks (9) has a slider (14) installed at one end. A spring (15) is installed between the multiple sliding grooves (13) and the multiple sliders (14), and the sliders (14) slide in the sliding grooves (13).

3. A gas flow meter according to claim 1, characterized in that, The other end of each of the L-shaped blocks (9) is provided with a groove, and each of the two annular plates (11) is provided with a plurality of concave blocks (16) on the opposite side, and each of the plurality of concave blocks (16) and the plurality of grooves is rotatably fitted with a rotating rod (17).

4. A gas flow meter according to claim 3, characterized in that, The two ends of the push rod (12) are fixed to the two adjacent rotating rods (17), the middle of the bidirectional screw (10) is equipped with a worm gear (18), the connecting pipe (1) has two openings (19) on its periphery, and the annular groove (5) is rotatably fitted with a worm (20) that meshes with the worm gear (18).

5. A gas flow meter according to claim 4, characterized in that, Both openings (19) are equipped with sealing gaskets. The worm (20) corresponds to one of the openings (19). One end of the worm (20) is equipped with a turntable (21), and the two annular plates (11) are slidably fitted inside the annular groove (5).

6. A gas flow meter according to claim 4, characterized in that, Another opening (19) is fitted with a sleeve (22) corresponding to the flow meter body (4). The flow meter body (4) and the upper end of the sleeve (22) are both fitted with connecting plates (23). The two connecting plates (23) are each fitted with multiple interconnected slots on their periphery, and each of the multiple slots is fitted with bolts (24).

7. A gas flow meter according to claim 6, characterized in that, Both ends of the multiple bolts (24) are threaded with nuts (25), the inner side of the sleeve (22) is provided with a threaded groove (26), and the periphery of the flow meter body (4) is provided with a threaded coil (27) that is threaded with the threaded groove (26). Both opposite ends of the connecting pipe (1) are provided with flange plates.

8. A gas flow meter according to claim 1, characterized in that, The lower end of the flow meter body (4) is equipped with a sensing probe (28), which is located inside the connecting pipe (1) and corresponds to the air inlet (2) and the air outlet (3), and the drying cotton (7) is located between the two filter plates (6).

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