Gas ultrasonic flowmeter with calibration function

Abstract

The utility model relates to a gas ultrasonic flowmeter, belongs to the technical field of ultrasonic flowmeters, in particular to a gas ultrasonic flowmeter with a calibration function, which comprises two bottom blocks, and grooves are arranged on the two bottom blocks. The arc-shaped block is driven by the self weight of the gas ultrasonic flowmeter body to move downwards, the connecting frame below the supporting block is driven to rotate, the limiting square blocks are driven to draw close to each other to limit and fix the gas ultrasonic flowmeter body, when calibration is needed, a control valve on the communicating pipe can be opened, and calibration is completed. The gas ultrasonic flowmeter body is conveniently limited and fixed, meanwhile, the gas ultrasonic flowmeter body is convenient to disassemble, and the problems that the flow of existing gas is different during use, the gas flowmeter needs to be verified and calibrated before being used, and the calibration efficiency is high are solved. And the gas flow meter is inconvenient to mount and dismount, and the later maintenance is inconvenient.

Description

Technical Field

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

[0002] Flow rate is the amount of fluid passing through a certain cross-sectional area per unit time. Measuring the flow rate of a fluid flowing through a specific channel is generally referred to as flow measurement. Gas flow rate is related to temperature, pressure, and other factors. A gas flowmeter is a device used to detect gas flow. All newly manufactured flowmeters must undergo verification and calibration before they can be used.

[0003] After searching the Chinese patent with the authorization announcement number CN213397283U, a gas ultrasonic flowmeter with a calibration function is disclosed, which includes a gas ultrasonic flowmeter body, a calibration mechanism connected to the gas ultrasonic flowmeter body, the calibration mechanism includes a calibration cylinder connected to the inspection inlet pipe, a piston sealingly and slidingly arranged with the inner wall of the calibration cylinder, a push-pull rod arranged on the piston and away from one end of the calibration outlet pipe, a driving device for driving the push-pull rod to move in the calibration cylinder, and a scale arranged on the side wall of the calibration cylinder.

[0004] Based on the above search and combined with the existing technology, we found that:

[0005] Existing gas flow meters have different gas flow rates when used in different environments. Gas flow meters need to be calibrated before use. In addition, gas flow meters are inconvenient to install and disassemble, making subsequent maintenance inconvenient. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a gas ultrasonic flowmeter with a calibration function. The gas ultrasonic flowmeter body is placed on two arc blocks, and the arc blocks are driven downward by the weight of the gas ultrasonic flowmeter body itself, driving the connecting frame under the support block to rotate, and driving the limit blocks to move closer to each other to limit and fix the gas ultrasonic flowmeter body.

[0007] The technical solution for achieving the purpose of the utility model is: a gas ultrasonic flowmeter with a calibration function, comprising two bottom blocks, each of which has a groove, each of which is fixedly connected to a telescopic rod, each of which has a top end fixedly connected to a support block, each of which has a top end fixedly connected to an arc block, and further comprising;

[0008] A limiting mechanism, wherein the limiting mechanism is located on the bottom block;

[0009] The limiting mechanism includes two strip holes each opened on the two bottom blocks, fixed columns are fixedly connected in the four strip holes, connecting frames are rotatably connected to the circumferential outer walls of the four fixing columns, the bottoms of the connecting frames are located below the supporting blocks, the tops of the four connecting frames are fixedly connected to the limiting blocks, the tops of the two arc blocks are jointly fitted with the gas ultrasonic flowmeter body, and a display dial is installed on the gas ultrasonic flowmeter body.

[0010] In some embodiments, a telescopic spring is sleeved on each of the two telescopic rods, and two ends of the telescopic spring are fixedly connected to the telescopic rod and the support block respectively.

[0011] In some embodiments, a torsion spring is sleeved on each of the four fixing columns, one end of the torsion spring is fixedly connected to the bottom block, and the other end is fixedly connected to the connecting frame.

[0012] In some embodiments, the two bottom blocks are fixedly connected to a connecting plate on one side close to each other, a calibration box is fixedly connected to the top of the connecting plate, a hydraulic telescopic rod is installed on one side of the calibration box, and a piston is fixedly connected to the output end of the hydraulic telescopic rod.

[0013] In some embodiments, a connecting hole is provided on the gas ultrasonic flowmeter body, an air inlet is provided on the calibration box, a connecting pipe is fixedly connected to the connecting hole and the air inlet, a fixing hole is provided on the connecting pipe, and an air outlet pipe is fixedly connected to the fixing hole.

[0014] In some embodiments, a movable hole is opened on the gas ultrasonic flowmeter body, an air inlet pipe is fixedly connected to the movable hole, and control valves are installed on the air inlet pipe, the connecting pipe and the air outlet pipe.

[0015] Compared with the prior art, the present invention has the following significant advantages:

[0016] The utility model places the gas ultrasonic flow meter body on two arc blocks, and drives the arc blocks to move downward by the weight of the gas ultrasonic flow meter body, drives the connecting frame under the support block to rotate, and drives the limiting blocks to move closer to each other to limit and fix the gas ultrasonic flow meter body. When calibration is required, the control valve on the connecting pipe can be opened to allow gas to enter the calibration box, and the calibration is adjusted by the hydraulic telescopic rod and piston, which makes it easy to limit and fix the gas ultrasonic flow meter body and at the same time facilitates the disassembly of the gas ultrasonic flow meter body, thereby improving the practicality of the device.

[0017] The invention solves the problems that the gas flow rate of the existing gas flow meter will be different when used in different environments, the gas flow meter needs to be verified and calibrated before use, and the gas flow meter is inconvenient to install and disassemble, and inconvenient for subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure provided in one embodiment of the present invention;

[0021] Figure 3 The utility model provides in one embodiment Figure 2 A in the middle is an enlarged schematic diagram of the three-dimensional structure.

[0022] Description of reference numerals:

[0023] 1. Bottom block; 2. Groove; 3. Telescopic rod; 4. Support block; 5. Arc block; 6. Strip hole; 7. Fixing column; 8. Connecting frame; 9. Limiting block; 10. Telescopic spring; 11. Torsion spring; 12. Gas ultrasonic flowmeter body; 13. Display dial; 14. Inlet pipe; 15. Connecting pipe; 16. Outlet pipe; 17. Connecting plate; 18. Calibration box; 19. Hydraulic telescopic rod; 20. Piston; 21. Control valve. DETAILED DESCRIPTION

[0024] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The utility model provides a gas ultrasonic flowmeter with a calibration function through improvement. The technical solution of the utility model is:

[0026] like Figure 1-Figure 3As shown, a gas ultrasonic flowmeter with a calibration function includes two bottom blocks 1, each of which has a groove 2, and each of the two grooves 2 is fixedly connected to a telescopic rod 3, the top of each telescopic rod 3 is fixedly connected to a support block 4, and the top of each support block 4 is fixedly connected to an arc block 5, and also includes a limiting mechanism, which is located on the bottom block 1; the limiting mechanism includes two strip holes 6, each of which is provided on the two bottom blocks 1, and a fixing column 7 is fixedly connected in each of the four strip holes 6. The circumferential outer walls of the four fixing columns 7 are rotatably connected to a connecting frame 8, the bottom of the connecting frame 8 is located below the support block 4, and the top of the four connecting frames 8 is fixedly connected to a limiting block 9. The top of the two arc blocks 5 is jointly attached to a gas ultrasonic flowmeter body 12, and a display dial 13 is installed on the gas ultrasonic flowmeter body 12; through the setting of the limiting mechanism, it is convenient to limit and fix the gas ultrasonic flowmeter body 12, and at the same time, it is convenient to disassemble the gas ultrasonic flowmeter body 12, thereby improving the practicality of the device.

[0027] like Figure 3 As shown, in one embodiment, a telescopic spring 10 is sleeved on each of the two telescopic rods 3, and the two ends of the telescopic spring 10 are fixedly connected to the telescopic rod 3 and the support block 4 respectively; through the arrangement of the telescopic spring 10, the reciprocating motion of the support block 4 is facilitated.

[0028] like Figure 3 As shown, in one embodiment, a torsion spring 11 is sleeved on each of the four fixing columns 7, one end of the torsion spring 11 is fixedly connected to the bottom block 1, and the other end is fixedly connected to the connecting frame 8; through the provision of the torsion spring 11, the reciprocating motion of the connecting frame 8 is facilitated.

[0029] like Figure 1 and Figure 2 As shown, in one embodiment, a connecting plate 17 is fixedly connected to one side of the two bottom blocks 1 that are close to each other, a calibration box 18 is fixedly connected to the top of the connecting plate 17, a hydraulic telescopic rod 19 is installed on one side of the calibration box 18, and a piston 20 is fixedly connected to the output end of the hydraulic telescopic rod 19; through the provision of the calibration box 18, it is possible to facilitate the calibration of the gas ultrasonic flowmeter body 12.

[0030] like Figure 1 As shown, in one embodiment, a connecting hole is provided on the gas ultrasonic flowmeter body 12, an air inlet hole is provided on the calibration box 18, a connecting pipe 15 is fixedly connected to the connecting hole and the air inlet hole, a fixing hole is provided on the connecting pipe 15, and an air outlet pipe 16 is fixedly connected to the fixing hole; through the provision of the connecting pipe 15, the gas ultrasonic flowmeter body 12 and the calibration box 18 are easily connected.

[0031] like Figure 1As shown, in one embodiment, a movable hole is opened on the gas ultrasonic flowmeter body 12, and an air inlet pipe 14 is fixedly connected to the movable hole. Control valves 21 are installed on the air inlet pipe 14, the connecting pipe 15 and the air outlet pipe 16; through the setting of the control valve 21, it is possible to facilitate the control of the air inlet pipe 14, the connecting pipe 15 and the air outlet pipe 16.

[0032] The specific working method is: when in use, place the gas ultrasonic flowmeter body 12 on the two arc blocks 5, and the arc block 5 is driven downward by the weight of the gas ultrasonic flowmeter body 12, driving the connecting frame 8 under the support block 4 to rotate, and driving the limiting blocks 9 to move closer to each other to limit and fix the gas ultrasonic flowmeter body 12. When calibration is required, the control valve 21 on the connecting pipe 15 can be opened to allow the gas to enter the calibration box 18, and the hydraulic telescopic rod 19 and the piston 20 are used for adjustment and calibration, so that the gas ultrasonic flowmeter body 12 can be easily limited and fixed, and the gas ultrasonic flowmeter body 12 can be easily disassembled, thereby improving the practicality of the device.

[0033] The technical means disclosed in the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A gas ultrasonic flowmeter with a calibration function, comprising two bottom blocks (1), each of the two bottom blocks (1) being provided with a groove (2), each of the two grooves (2) being fixedly connected with a telescopic rod (3), each of the top ends of the two telescopic rods (3) being fixedly connected with a support block (4), each of the top ends of the two support blocks (4) being fixedly connected with an arc block (5), characterized in that: Also includes; A limiting mechanism, the limiting mechanism being located on the bottom block (1); The limiting mechanism comprises two strip holes (6) each opened on two bottom blocks (1); a fixing column (7) is fixedly connected in each of the four strip holes (6); a connecting frame (8) is rotatably connected to the circumferential outer wall of each of the four fixing columns (7); the bottom of each of the connecting frames (8) is located below the supporting block (4); the tops of the four connecting frames (8) are fixedly connected to a limiting block (9); the tops of the two arc blocks (5) are jointly fitted with a gas ultrasonic flow meter body (12); and a display dial (13) is installed on the gas ultrasonic flow meter body (12).

2. A gas ultrasonic flowmeter with calibration function according to claim 1, characterized in that: The two telescopic rods (3) are both sleeved with a telescopic spring (10), and the two ends of the telescopic spring (10) are respectively fixedly connected to the telescopic rod (3) and the support block (4).

3. The gas ultrasonic flowmeter with calibration function according to claim 1, characterized in that: The four fixing columns (7) are all sleeved with a torsion spring (11), one end of the torsion spring (11) is fixedly connected to the bottom block (1), and the other end is fixedly connected to the connecting frame (8).

4. The gas ultrasonic flowmeter with calibration function according to claim 1, characterized in that: A connecting plate (17) is fixedly connected to one side of the two bottom blocks (1) close to each other, a check box (18) is fixedly connected to the top of the connecting plate (17), a hydraulic telescopic rod (19) is installed on one side of the check box (18), and a piston (20) is fixedly connected to the output end of the hydraulic telescopic rod (19).

5. The gas ultrasonic flowmeter with calibration function according to claim 1, characterized in that: The gas ultrasonic flowmeter body (12) is provided with a connection hole, the calibration box (18) is provided with an air inlet hole, a connecting pipe (15) is fixedly connected to the connection hole and the air inlet hole, the connecting pipe (15) is provided with a fixing hole, and an air outlet pipe (16) is fixedly connected to the fixing hole.

6. The gas ultrasonic flowmeter with calibration function according to claim 1, characterized in that: The gas ultrasonic flowmeter body (12) is provided with a movable hole, an air inlet pipe (14) is fixedly connected in the movable hole, and a control valve (21) is installed on the air inlet pipe (14), the connecting pipe (15) and the air outlet pipe (16).

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