Ultrasonic gas flowmeter

Abstract

The utility model discloses an ultrasonic gas flowmeter, and relates to the technical field of ultrasonic flowmeters. The ultrasonic gas flowmeter comprises a gas flowmeter body and an ultrasonic probe, the gas flowmeter body is electrically connected with the ultrasonic probe, a fixed ruler inserting groove is formed in the upper end of the interior of the ultrasonic probe, and a fixing groove is formed in the position, located at an opening of the fixed ruler inserting groove, of one end of the ultrasonic probe. A fixing plate is connected between the front surface and the rear surface of the ultrasonic probe, a steel ball limiting hole is formed in the middle of the fixing plate, a steel chain inserting opening is formed in the outer side of the fixing plate, a fixing ruler is arranged on the front side of the ultrasonic probe, scales are marked on the front side of the upper surface of the fixing ruler, and fixing protruding blocks are arranged on the front side and the rear side of the left end of the fixing ruler. Rotating shafts are connected to the interiors of the front side and the rear side in the fixed ruler inserting groove in an array mode, rolling wheels are arranged on the outer sides of the interiors of the rotating shafts in a sleeving mode, and rubber gaskets are connected to the upper ends and the lower ends of the rolling wheels.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic flowmeters, in particular to an ultrasonic gas flowmeter. Background Art

[0002] Ultrasonic flowmeter is an instrument that uses the characteristics of ultrasonic wave propagation in fluid to measure flow rate. This flowmeter can convert velocity information into flow rate information by measuring the propagation speed of ultrasonic wave in fluid. It has the advantages of high precision, high reliability, wide application range (including liquid and gas flow measurement), no need for direct contact with fluid, easy installation and simple maintenance. Among them, the external ultrasonic flowmeter has the characteristics of non-contact measurement, strong anti-interference ability and good compatibility. However, when installing the external ultrasonic flowmeter, it is more troublesome to use. After the parameters are input into the internal controller of the flowmeter, the distance between the two probes is obtained, and the table is marked on the outside of the pipeline. After the marking is completed, the two probes are attached. When attaching, ensure that the two probes are vertical, otherwise it will affect the detection accuracy. After completing these, they are fixed with steel binding tape, which makes it more troublesome to make fine adjustments later. Therefore, an ultrasonic gas flowmeter is designed to solve the above problems. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides an ultrasonic gas flow meter, which solves the problem that the installation of the existing external ultrasonic flow meter is relatively complicated and troublesome, and the steel binding belt is not convenient for subsequent adjustment.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides an ultrasonic gas flow meter, comprising: a gas flow meter body and an ultrasonic probe, wherein the gas flow meter body is electrically connected to the ultrasonic probe, a fixed ruler slot is provided at the upper end of the ultrasonic probe, a fixing groove is provided at one end of the ultrasonic probe and located at the opening of the fixed ruler slot, a fixing plate is connected between the front and rear surfaces of the ultrasonic probe, a steel ball limiting hole is provided in the middle of the fixing plate, a steel chain insertion port is provided on the outer side of the fixing plate, an arc chamfer is provided at the opening of the upper end of the steel ball limiting hole, a fixed ruler is provided at the front side of the ultrasonic probe, a scale is marked on the front side of the upper surface of the fixed ruler, a front end blank space marked on the upper surface of the fixed ruler is the same as the length of the ultrasonic probe, fixed protrusions are provided at the front and rear sides of the left end of the fixed ruler, a rotating shaft is connected to the front and rear sides of the fixed ruler slot in an array shape, a roller is sleeved on the outer side of the rotating shaft, rubber gaskets are connected to the upper and lower ends of the roller, the rubber gasket is tightly connected to the inside of the fixed ruler slot, and a rubber pad is wrapped on the outer side of the roller.

[0008] Preferably, threaded holes are provided on left and right sides of the upper end of the ultrasonic probe, bolts are threadedly connected to the threaded holes on the upper end of the ultrasonic probe, and a rubber anti-slip pad is connected to the lower end of the bolt.

[0009] Preferably, a clamping claw is connected in the middle of the rear surface of the gas flow meter body, a clamping plate is provided at the rear end of the clamping claw, and countersunk holes are provided on the left and right sides of the inside of the clamping plate.

[0010] Preferably, a connecting port is provided at the front left side of the lower end of the fixed ruler, a connecting groove is provided at the upper end of the connecting port, a secondary ruler is provided at the right side of the lower end of the fixed ruler, and a connecting block is connected to the left side of the front end of the upper surface of the secondary ruler.

[0011] Preferably, a card slot is provided on the left side of the rear surface of the fixed ruler, and a card block is connected to the rear side of the left surface of the auxiliary ruler, and the card block is inserted and connected to the card slot.

[0012] Preferably, a gentle slope is provided on both the front and rear sides of the middle of the upper end of the ultrasonic probe.

[0013] Preferably, the fixed ruler and the fixed plate are both made of steel.

[0014] (III) Beneficial effects

[0015] The utility model provides an ultrasonic gas flow meter, which has at least the following beneficial effects compared with the prior art:

[0016] (1) The ultrasonic gas flow meter is inserted into the fixed ruler slot through the fixed ruler. When installing, the inserted ultrasonic probe is pulled and positioned according to the scale on the fixed ruler, and parallelism can be ensured during installation.

[0017] (2) The ultrasonic gas flow meter is fixed by inserting a steel ball chain into a fixing plate. If the installation position is inaccurate and needs to be adjusted, the steel ball chain can be pulled outward to remove it and make adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a cross-sectional view of the ultrasonic probe of the utility model;

[0020] Figure 3 This is a partial enlarged view of the fixing plate of the utility model;

[0021] Figure 4 This is an enlarged view of the connection part of the utility model;

[0022] Figure 5 This is an internal view of the connecting groove of the utility model.

[0023] In the figure: 1. Gas flow meter body; 2. Ultrasonic probe; 3. Fixed ruler slot; 4. Fixed slot; 5. Fixed plate; 6. Steel ball limiting hole; 7. Steel chain insertion port; 8. Fixed ruler; 9. Fixed protrusion; 10. Rotating shaft; 11. Roller; 12. Rubber gasket; 21. Bolt; 22. Claw; 23. Clamping plate; 24. Connecting port; 25. Connecting slot; 26. Auxiliary ruler; 27. Connecting block; 28. Clamping slot; 29. ​​Clamping block; 30. Gentle slope. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5The utility model provides a technical solution: an ultrasonic gas flow meter, comprising: a gas flow meter body 1 and an ultrasonic probe 2, the gas flow meter body 1 and the ultrasonic probe 2 are electrically connected, a fixed ruler slot 3 is provided at the upper end of the ultrasonic probe 2, a fixed groove 4 is provided at one end of the ultrasonic probe 2 and located at the opening of the fixed ruler slot 3, a fixing plate 5 is connected between the front and rear surfaces of the ultrasonic probe 2, a steel ball limiting hole 6 is provided in the middle of the fixing plate 5, a steel chain insertion port 7 is provided on the outer side of the fixing plate 5, and the upper end opening of the steel ball limiting hole 6 is opened. A circular chamfer is provided, a fixed ruler 8 is provided on the front side of the ultrasonic probe 2, a scale is marked on the front side of the upper surface of the fixed ruler 8, the front end blank space marked on the upper surface of the fixed ruler 8 is the same length as the ultrasonic probe 2, fixed protrusions 9 are provided on the front and rear sides of the left end of the fixed ruler 8, and a rotating shaft 10 is connected in an array shape on the front and rear sides of the fixed ruler slot 3, a roller 11 is sleeved on the outer side of the rotating shaft 10, and rubber gaskets 12 are connected to the upper and lower ends of the roller 11, the rubber gasket 12 is tightly connected to the inside of the fixed ruler slot 3, and the outer side of the roller 11 is wrapped with a rubber pad.

[0026] When in use, after the gas flow meter body 1 and the ultrasonic probe 2 are docked and debugged, the installation distance between the two ultrasonic probes 2 will be displayed on the display screen of the gas flow meter body 1, and then the fixed ruler 8 is inserted into the fixed ruler slot 3, so that the fixed protrusion 9 and the fixed groove 4 are tightly fitted together. At this time, the scale zero position marked on the fixed ruler 8 will be at one end of the ultrasonic probe 2, and then another ultrasonic probe 2 is mounted on the fixed ruler 8, and the position of the second ultrasonic probe 2 is adjusted to the value displayed on the gas flow meter body 1. When the ultrasonic probe 2 is mounted on the fixed ruler 8, the roller 11 will be on the rotating shaft. 10 rotates, the rubber gasket 12 will reduce the rotation force of the roller 11, and the rubber pad wrapped on the outside of the roller 11 will increase the friction between the fixed ruler 8 and the roller 11, preventing the fixed ruler 8 from being too loose when inserted into the ultrasonic probe 2, and facilitating debugging. After that, the two ultrasonic probes 2 are placed on the outside of the steel pipe, and the steel ball chain is inserted into the steel chain insertion port 7 through the steel chain between the steel balls, so that the upper end of the steel ball is inside the steel ball limiting hole 6, and then after going around the outside of the steel pipe, it is connected to the inside of another fixed plate 5. After the two ultrasonic probes 2 are fixed, the fixed ruler is taken out to complete the installation.

[0027] like Figure 1 As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, threaded holes are opened on the left and right sides of the upper end of the ultrasonic probe 2, and bolts 21 are connected to the threaded holes on the upper end of the ultrasonic probe 2 through threads, and the lower end of the bolt 21 is connected to a rubber anti-slip pad.

[0028] From the analysis of the above structure, it can be seen that after adjusting the position of the ultrasonic probe 2, the bolt 21 is rotated downward, and the rubber anti-skid pad at the lower end of the bolt 21 will press the fixed ruler 8 to prevent the position of the ultrasonic probe 2 from changing.

[0029] like Figure 1 As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, a claw 22 is connected in the middle of the rear surface of the gas flow meter body 1, and a clamping plate 23 is provided at the rear end of the claw 22. Countersunk holes are opened on the left and right sides of the clamping plate 23.

[0030] From the analysis of the above structure, it can be known that when installing the gas flow meter body 1, the clamping plate 23 is first installed on the wall, and then the claw 22 on the rear surface of the gas flow meter body 1 is sleeved inside the clamping plate 23 to fix the gas flow meter body 1. During debugging, the gas flow meter body 1 can be removed by pulling it outward.

[0031] like Figure 1-5 As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, a connecting port 24 is opened at the front end of the left side of the lower end of the fixed ruler 8, a connecting groove 25 is opened at the upper end of the connecting port 24, and a secondary ruler 26 is arranged on the right side of the lower end of the fixed ruler 8. The secondary ruler 26 has a connecting block 27 connected to the left side of the front end of the upper surface.

[0032] According to the above structure, if the length of the fixed ruler 8 is insufficient, the auxiliary ruler 26 is rotated 90 degrees clockwise, and then pushed upward to insert the connecting block 27 into the gap in the middle of the connecting groove 25. After being pushed to the top, it is rotated 90 degrees counterclockwise to connect the fixed ruler 8 with the auxiliary ruler 26.

[0033] like Figure 1-5 As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, a slot 28 is opened on the left side of the rear surface of the fixed ruler 8, and a block 29 is connected to the rear side of the left surface of the auxiliary ruler 26, and the block 29 is inserted and connected with the slot 28.

[0034] From the analysis of the above structure, it can be known that when the fixed ruler 8 and the auxiliary ruler 26 are docked, the block 29 will be inserted into the inside of the slot 28, and the protrusions at the upper and lower ends of the block 29 will be inserted into the grooves at the upper and lower ends of the slot 28, fixing the fixed ruler 8 and the auxiliary ruler 26 to prevent angular rotation.

[0035] like Figure 1 As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, a gentle slope (30) is provided on both sides of the front and rear of the middle of the upper end of the ultrasonic probe (2).

[0036] From the analysis of the above structure, it can be known that when a steel tie is used for connection, the tie can be inserted into the gentle slope 30 and wrapped around it for installation. The gentle slope 30 can limit the steel tie and reduce the stress at the corner.

[0037] like Figure 1-5 As shown, the embodiment of the utility model provides an implementation method. Based on the above implementation method, the fixed ruler (8) and the fixed plate (5) are both made of steel.

[0038] From the analysis of the above structure, it can be seen that the fixed ruler (8) and the fixed plate (5) are both made of steel, which can firstly increase the hardness and prevent the fixed plate 5 from being broken, and at the same time reduce wear and tear and extend the service life.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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

Claims

1. An ultrasonic gas flow meter, characterized in that: include: A gas flow meter body (1) and an ultrasonic probe (2), wherein the gas flow meter body (1) and the ultrasonic probe (2) are electrically connected, a fixed ruler slot (3) is provided at the upper end of the ultrasonic probe (2), a fixed groove (4) is provided at one end of the ultrasonic probe (2) and located at the opening of the fixed ruler slot (3), a fixed plate (5) is connected between the front and rear surfaces of the ultrasonic probe (2), a steel ball limiting hole (6) is provided in the middle of the fixed plate (5), a steel chain insertion port (7) is provided on the outer side of the fixed plate (5), a circular arc chamfer is provided at the upper end opening of the steel ball limiting hole (6), and the ultrasonic probe ( 2) A fixed ruler (8) is arranged at the front side, a scale is marked on the front side of the upper surface of the fixed ruler (8), the front blank space marked on the upper surface of the fixed ruler (8) is the same length as the ultrasonic probe (2), fixed protrusions (9) are arranged on the front and rear sides of the left end of the fixed ruler (8), a rotating shaft (10) is connected in an array shape on the front and rear sides of the interior of the fixed ruler slot (3), a roller (11) is sleeved on the outer side of the interior of the rotating shaft (10), a rubber gasket (12) is connected to the upper and lower ends of the roller (11), the rubber gasket (12) is tightly connected to the interior of the fixed ruler slot (3), and a rubber pad is wrapped on the outer side of the roller (11).

2. An ultrasonic gas flow meter according to claim 1, characterized in that: Threaded holes are provided on the left and right sides of the upper end of the ultrasonic probe (2), a bolt (21) is connected to the threaded hole at the upper end of the ultrasonic probe (2) through a thread, and a rubber anti-slip pad is connected to the lower end of the bolt (21).

3. An ultrasonic gas flow meter according to claim 1, characterized in that: A claw (22) is connected in the middle of the rear surface of the gas flow meter body (1), a clamping plate (23) is arranged at the rear end of the claw (22), and countersunk holes are provided on the left and right sides of the inside of the clamping plate (23).

4. The ultrasonic gas flow meter according to claim 1, characterized in that: A connection opening (24) is provided at the front left side of the lower end of the fixed ruler (8), a connection groove (25) is provided at the upper end of the connection opening (24), a secondary ruler (26) is provided at the right side of the lower end of the fixed ruler (8), and a connection block (27) is connected to the front left side of the upper surface of the secondary ruler (26).

5. An ultrasonic gas flow meter according to claim 4, characterized in that: A card slot (28) is provided on the left side of the rear surface of the fixed ruler (8), and a card block (29) is connected to the rear side of the left surface of the auxiliary ruler (26), and the card block (29) is inserted and connected to the card slot (28).

6. The ultrasonic gas flow meter according to claim 1, characterized in that: A gentle slope (30) is provided on both the front and rear sides of the middle of the upper end of the ultrasonic probe (2).

7. The ultrasonic gas flow meter according to claim 1, characterized in that: The fixed ruler (8) and the fixed plate (5) are both made of steel.

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