Liquid ultrasonic flowmeter timing system delay acquisition equipment and acquisition method thereof
Through the design of the connecting plate and bracket structure, the elasticity of the rubber seat and the spring drives the fitting seat to telescope, combine the fitting connection between the fitting rod and the limiting plate to increase friction, cooperate with the rubber sleeve to absorb vibration, and use friction pads and magnets to fix the fitting block, solving the problem of low delay acquisition accuracy and cumbersome installation affecting the vibration of the liquid ultrasonic flowmeter, achieving improved accuracy and convenient installation.
Patent Information
- Application Number
- CN202510628059.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2025-08-15
AI Technical Summary
When used, the liquid ultrasonic flowmeter is easily affected by vibration and the accuracy of the delayed acquisition equipment is cumbersome to install.
The connecting plate and bracket structure is adopted, and the elasticity of the rubber seat and the spring drives the fitting seat to expand and contract. Combined with the fitting connection between the fitting rod and the limiting plate, it increases friction, and uses the rubber sleeve to absorb vibration. It uses friction pads and magnets to fix the fitting block to achieve rapid installation and reduce the impact of vibration.
Improve the accuracy of the delayed acquisition equipment, simplify the installation process, and reduce the impact of vibration on the collector.
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Figure CN120489295A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of liquid ultrasonic flow delay acquisition, in particular to a liquid ultrasonic flowmeter timing system delay acquisition device and an acquisition method thereof. Background Art
[0002] An ultrasonic flowmeter is a flowmeter developed based on the principle that the propagation speed of ultrasonic waves in a flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in a stationary medium. It is mainly composed of a transducer and a converter. There are different types such as the Doppler method, the velocity difference method, the beam offset method, the noise method and the correlation method. Data acquisition delay is an important concept in the field of data processing and analysis. It refers to the time difference between the generation of data and the acquisition and processing by the data acquisition system. Transmission delay: The time required for data to be transmitted from the source to the acquisition system. This depends on factors such as the transmission medium, transmission distance and transmission protocol. 2. Processing delay: The time required for the acquisition system to process the data (such as filtering, format conversion, etc.) after receiving the data. The processing delay is related to the processing power and algorithm efficiency of the acquisition system. 3. Storage delay: The time required for the data to be stored in the specified location after processing. Storage delay is related to the performance and storage strategy of the storage device; When the delayed acquisition device of the liquid ultrasonic flowmeter timing system is in use, the delayed acquisition device is usually connected to the liquid ultrasonic flowmeter. When the liquid ultrasonic flowmeter detects the flow of water, it is prone to vibration, which causes the vibration of the liquid ultrasonic flowmeter to be easily transmitted to the delayed acquisition device, causing the delayed acquisition device to be affected by the vibration of the liquid ultrasonic flowmeter and reduce the accuracy of the acquisition. At the same time, when the delayed acquisition device is connected to the liquid ultrasonic flowmeter, the delayed acquisition device cannot be quickly disassembled and installed, resulting in the delay acquisition device being more cumbersome during installation. Summary of the Invention
[0003] In view of the deficiencies in the prior art, the present invention provides a delayed acquisition device for a timing system of a liquid ultrasonic flowmeter and a method for collecting the same. The connecting plate and the bracket can provide a certain distance between the connection between the collector and the liquid ultrasonic flowmeter. When the liquid ultrasonic flowmeter is vibrated by the flow of water, the rubber seat fits the surface of the liquid ultrasonic flowmeter. The elasticity of the first spring can make it directly drive the fitting seat to expand and contract inside under the influence of the vibration. The rubber seat can fit the surface of the liquid ultrasonic flowmeter in real time according to the expansion and contraction of the fitting seat. The fitting rod and the limit plate are connected in a fitting manner so that when the liquid ultrasonic flowmeter vibrates, the fitting rod can slide inside the limit plate. The rubber sleeve can increase the friction between the fitting rod and the limit plate, so that the sliding speed of the fitting rod inside the limit plate becomes slow. Combined with the rubber seat's absorption of vibration, the vibration of the collector can be reduced to prevent the collector from vibrating. The accuracy of the delayed collection of the collector is reduced by the vibration of the liquid ultrasonic flowmeter. The mounting plate is embedded in the interior of the embedding plate. The friction pad can be used to increase the friction between the mounting plate and the embedding plate. The embedding block is simultaneously inserted into the embedding plate and the interior of the mounting plate. The embedding block is continuously pushed so that the adsorption disk can be adsorbed on the surface of the liquid ultrasonic flowmeter to fix the embedding block once. When the embedding block enters the interior of the mounting plate and the embedding plate, the elasticity of the second spring is used to make the elastic plate shrink into the interior of the groove under the influence of extrusion to squeeze the second spring. The second spring can push the elastic plate from the inside of the second groove under the influence of the extrusion force. The rubber pad can be used to fill the connection between the embedding block and the mounting plate and the interior of the embedding plate. The magnet can be used to attract the inside of the embedding plate to install and fix the embedding block, so that the collector is convenient to install and use with the liquid ultrasonic flowmeter when in use.
[0004] To solve the above technical problems, the present invention provides the following technical solution: comprising a tube body, wherein a liquid ultrasonic flowmeter is provided on the upper surface of the tube body, a connecting plate is fixedly connected to the front surface of the liquid ultrasonic flowmeter, a bracket is fixedly connected to the side surface of the connecting plate, and a limit plate is fixedly connected to the upper and lower surfaces of the connecting plate; A first spring is fixedly connected to the inside of the bracket, and an end of the first spring away from the bracket is fixedly connected to a fitting seat. A rubber seat is provided on the rear surface of the fitting seat, and support plates are provided on the upper and lower surfaces of the rubber seat. Both sides of the support plate are fixedly connected to a horizontal plate, and the front surface of the horizontal plate is fixedly connected to a fixed seat. A fitting rod is fixedly connected to the front surface of the fixed seat, and the fitting rod is fitted in connection with the inside of the limit plate, and a rubber sleeve is provided on the outer surface of the fitting rod.
[0005] Preferably, a mounting plate is fixedly connected to the front surface of the bracket, a friction pad is provided on the front surface of the mounting plate, and an opening is provided between the friction pad and the interior of the mounting plate.
[0006] Preferably, a mosaic plate is fixedly connected to the front surface of the liquid ultrasonic flowmeter, and the mosaic plate is mosaic-connected to the inside of the mounting plate, and a collector is fixedly connected to the front surface of the mosaic plate.
[0007] Preferably, the interlocking plate and the interior of the opening are interlocked with an interlocking block, the upper and lower surfaces of the interlocking block are fixedly connected with a metal plate, the rear surface of the metal plate is provided with a magnet, and the magnet is attracted to the front surface of the interlocking plate.
[0008] Preferably, a first groove is provided on the rear surface of the engaging block, a rubber rod is provided inside the first groove, and a suction disk is provided at one end of the rubber rod away from the first groove.
[0009] Preferably, a second groove is provided on both sides of the engaging block, a second spring is fixedly connected inside the second groove, and the length of the second spring is greater than the depth of the second groove.
[0010] Preferably, one end of the second spring away from the second groove is fixedly connected to an elastic plate, and a rubber pad is provided on the side surface of the elastic plate.
[0011] Preferably, the front and rear ends of the tube body are fixedly connected with flanges, and the flanges are in communication with the tube body.
[0012] Preferably, the liquid ultrasonic flowmeter is electrically connected to the collector, and a display screen is provided on the upper surface of the liquid ultrasonic flowmeter.
[0013] A method for collecting time delay of a timing system of a liquid ultrasonic flowmeter, comprising the following steps: S1. The flange can be used to connect the pipe body to the external pipe body. The liquid ultrasonic flowmeter is developed based on the principle that the propagation velocity of the water in the flowing medium of the pipe body is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in the static medium. When the liquid ultrasonic flowmeter is performing detection, the delayed collector can delay the detection data of the liquid ultrasonic flowmeter by timing and transmit the signal to the external control end.
[0014] Compared with the prior art, the present invention provides a liquid ultrasonic flowmeter timing system delay acquisition device and acquisition method, which has the following beneficial effects: 1. The present invention utilizes a connecting plate and a bracket to provide a certain distance between the connection of the collector and the liquid ultrasonic flowmeter. When the liquid ultrasonic flowmeter is vibrated by the flow of water, the rubber seat fits with the surface of the liquid ultrasonic flowmeter. The elasticity of the first spring can make it directly drive the fitting seat to expand and contract inside the fitting seat under the influence of the vibration. According to the expansion and contraction of the fitting seat, the rubber seat can fit with the surface of the liquid ultrasonic flowmeter in real time. The fitting rod and the limit plate are connected in a fitting manner so that when the liquid ultrasonic flowmeter vibrates, the fitting rod can slide inside the limit plate. The rubber sleeve can increase the friction between the fitting rod and the limit plate, so that the sliding speed of the fitting rod inside the limit plate becomes slow. Combined with the absorption of vibration by the rubber seat, the vibration of the collector can be reduced, thereby preventing the collector from being affected by the vibration of the liquid ultrasonic flowmeter and reducing the accuracy of the delayed collection of the collector.
[0015] 2. The present invention embeds the mounting plate into the interior of the embedding plate, and utilizes the friction pad to increase the friction between the mounting plate and the embedding plate. The embedding block is simultaneously inserted into the embedding plate and the interior of the mounting plate, and is continuously pushed by the embedding block so that the adsorption plate can be adsorbed on the surface of the liquid ultrasonic flowmeter to fix the embedding block once. When the embedding block enters the interior of the mounting plate and the embedding plate, the elasticity of the second spring is utilized to cause the elastic plate to be squeezed and retracted into the interior of the groove to squeeze the second spring, and the second spring can, on the contrary, push the elastic plate from the interior of the second groove under the influence of the squeezing force. The connection between the embedding block and the mounting plate and the interior of the embedding plate can be filled with a rubber pad, and the magnet can be attracted to the interior of the embedding plate to install and fix the embedding block, so that the collector is convenient to be installed and used with the liquid ultrasonic flowmeter when in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle; Figure 3 This is a schematic diagram of the collector structure of the present invention; Figure 4 This is a schematic diagram of the split structure of the mosaic block of the present invention from a rear view; Figure 5 This is a schematic diagram of the rear view of the split structure of the mounting plate of the present invention.
[0017] Among them: 1. Tube body; 2. Flange; 3. Collector; 4. Liquid ultrasonic flowmeter; 5. Opening; 6. Friction pad; 7. Mounting plate; 8. Bracket; 9. Limiting plate; 10. First spring; 11. Rubber sleeve; 12. Interlocking rod; 13. Support plate; 14. Fixed seat; 15. Horizontal plate; 16. Interlocking seat; 17. Connecting plate; 18. Interlocking plate; 19. Interlocking block; 20. Metal plate; 21. Magnet; 22. Second groove; 23. Second spring; 24. Elastic plate; 25. Rubber pad; 26. First groove; 27. Adsorption plate; 28. Rubber rod; 29. Rubber seat. DETAILED DESCRIPTION
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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. Example
[0019] See also Figure 1-5 A liquid ultrasonic flowmeter timing system delay collection device includes a tube body 1, a liquid ultrasonic flowmeter 4 is provided on the upper surface of the tube body 1, the front and rear ends of the tube body 1 are fixedly connected with flanges 2, and the flange 2 is communicated with the tube body 1, the liquid ultrasonic flowmeter 4 is electrically connected to the collector 3, and a display screen is provided on the upper surface of the liquid ultrasonic flowmeter 4, and the front surface of the mosaic plate 18 is fixedly connected with the collector 3. The flange 2 can be used to connect the tube body 1 to the external tube body 1, and the liquid ultrasonic flowmeter 4 can be used to measure the propagation speed of water in the flowing medium of the tube body 1. The flowmeter is developed based on the principle that the propagation speed of water in the flowing medium is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in the stationary medium. When the liquid ultrasonic flowmeter 4 is performing detection, the delay collector 3 can perform delay collection of the detection data of the liquid ultrasonic flowmeter 4 by timing and transmit the signal to the external control end.
[0020] The front surface of the liquid ultrasonic flowmeter 4 is fixedly connected with a connecting plate 17, and the side surface of the connecting plate 17 is fixedly connected with a bracket 8. The upper and lower surfaces of the connecting plate 17 are fixedly connected to the limit plate 9. The inside of the bracket 8 is fixedly connected with a first spring 10, and the end of the first spring 10 away from the bracket 8 is fixedly connected with a fitting seat 16. The rear surface of the fitting seat 16 is provided with a rubber seat 29. The upper and lower surfaces of the rubber seat 29 are provided with a support plate 13. Both sides of the support plate 13 are fixedly connected with a cross plate 15, and the front surface of the cross plate 15 is fixedly connected with a fixed seat 14. The front surface of the fixed seat 14 is fixedly connected with a fitting rod 12, and the fitting rod 12 is fitted with the inside of the limit plate 9. The outer surface of the fitting rod 12 is provided with a rubber sleeve 11. When the liquid ultrasonic flowmeter 4 is in use, the collector 3 can be mounted on the surface of the liquid ultrasonic flowmeter 4 for use, and the connecting plate 17 and the bracket 8 can be used to collect A certain distance is provided at the connection between the collector 3 and the liquid ultrasonic flowmeter 4. When the liquid ultrasonic flowmeter 4 vibrates due to the flow of water, the rubber seat 29 fits with the surface of the liquid ultrasonic flowmeter 4. The elasticity of the first spring 10 can be used to directly drive the fitting seat 16 to expand and contract inside the collector 3 under the influence of vibration. According to the expansion and contraction of the fitting seat 16, the rubber seat 29 can fit with the surface of the liquid ultrasonic flowmeter 4 in real time. The fitting rod 12 is connected with the limit plate 9 to make the fitting rod 12 slide inside the limit plate 9 when the liquid ultrasonic flowmeter 4 vibrates. The rubber sleeve 11 can increase the friction between the fitting rod 12 and the limit plate 9, so that the sliding speed of the fitting rod 12 inside the limit plate 9 becomes slow. Combined with the absorption of vibration by the rubber seat 29, the vibration of the collector 3 can be reduced to prevent the collector 3 from being affected by the vibration of the liquid ultrasonic flowmeter 4 and reducing the accuracy of the delayed collection of the collector 3.
[0021] The front surface of the bracket 8 is fixedly connected to the mounting plate 7, and the front surface of the mounting plate 7 is provided with a friction pad 6. The friction pad 6 and the mounting plate 7 are provided with an opening 5 inside. The front surface of the liquid ultrasonic flowmeter 4 is fixedly connected to the mosaic plate 18, and the mosaic plate 18 is mosaic-connected with the inside of the mounting plate 7. The mosaic plate 18 and the inside of the opening 5 are both mosaic-connected with a mosaic block 19. The upper and lower surfaces of the mosaic block 19 are fixedly connected to a metal plate 20. The rear surface of the metal plate 20 is provided with a magnet 21, and the magnet 21 is attracted to the front surface of the mosaic plate 18. A first groove 26 is provided on the rear surface of the mosaic block 19, and a rubber rod 28 is provided inside the first groove 26. An adsorption disk 27 is provided at one end of the rubber rod 28 away from the first groove 26. Second grooves 22 are provided on both sides of the mosaic block 19. A second spring 23 is fixedly connected to the inside of the second groove 22, and the length of the second spring 23 is greater than the depth of the second groove 22. An elastic plate 24 is fixedly connected to one end of the second spring 23 away from the second groove 22. The side surface of the elastic plate 24 is provided with a rubber pad 25, which fits the mounting plate 7 into the interior of the fitting plate 18. The friction pad 6 can increase the friction between the mounting plate 7 and the fitting plate 18, and the fitting block 19 is simultaneously inserted into the fitting plate 18 and the interior of the mounting plate 7. The fitting block 19 is continuously pushed so that the adsorption disk 27 can be adsorbed on the surface of the liquid ultrasonic flowmeter 4 to fix the fitting block 19 once. When the fitting block 19 enters the interior of the mounting plate 7 and the fitting plate 18, the elasticity of the second spring 23 is used to cause the elastic plate 24 to be squeezed and retracted into the interior of the groove to squeeze the second spring 23. The second spring 23 is affected by the squeezing force and can push the elastic plate 24 out of the interior of the second groove 22. The rubber pad 25 can be used to fill the connection between the fitting block 19 and the mounting plate 7 and the interior of the fitting plate 18. The magnet 21 can be attracted to the interior of the fitting plate 18 to install and fix the fitting block 19, so that the collector 3 is convenient to be installed and used with the liquid ultrasonic flowmeter 4 when in use.
[0022] A method for collecting time delay of a timing system of a liquid ultrasonic flowmeter, comprising the following steps: S1. The flange 2 can be used to connect the pipe body 1 to the external pipe body 1. The liquid ultrasonic flowmeter 4 can be used to measure the flow medium of the water in the pipe body 1. The flowmeter is developed based on the principle that the propagation speed of the water in the flow medium is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in the static medium. When the liquid ultrasonic flowmeter 4 is performing detection, the delayed collector 3 can perform delayed collection of the detection data of the liquid ultrasonic flowmeter 4 through timing and transmit the signal to the external control end.
[0023] When in use, the mounting plate 7 is fitted into the interior of the fitting plate 18, and the friction pad 6 is used to increase the friction between the mounting plate 7 and the fitting plate 18. The fitting block 19 is simultaneously inserted into the fitting plate 18 and the interior of the mounting plate 7, and the fitting block 19 is continuously pushed so that the adsorption disk 27 can be adsorbed on the surface of the liquid ultrasonic flowmeter 4 to fix the fitting block 19 once. When the fitting block 19 enters the interior of the mounting plate 7 and the fitting plate 18, the elasticity of the second spring 23 is used to squeeze the elastic plate 24 and retract it into the interior of the groove. The second spring 23 is squeezed, and the second spring 23 is affected by the squeezing force and can push the elastic plate 24 from the inside of the second groove 22. The rubber pad 25 can be used to fill the connection between the fitting block 19 and the mounting plate 7 and the inside of the fitting plate 18. The magnet 21 can be used to attract the inside of the fitting plate 18 to install and fix the fitting block 19. The connecting plate 17 and the bracket 8 can provide a certain distance between the connection between the collector 3 and the liquid ultrasonic flowmeter 4. When the liquid ultrasonic flowmeter 4 is vibrated by the flow of water, The rubber seat 29 is fitted with the surface of the liquid ultrasonic flowmeter 4, and the elasticity of the first spring 10 is utilized to make it possible to directly drive the fitting seat 16 to expand and contract inside the fitting seat 16 under the influence of vibration. The rubber seat 29 can fit the surface of the liquid ultrasonic flowmeter 4 in real time according to the expansion and contraction of the fitting seat 16. The fitting rod 12 is connected with the limit plate 9 to make the fitting rod 12 slide inside the limit plate 9 when the liquid ultrasonic flowmeter 4 vibrates. The rubber sleeve 11 can increase the friction between the fitting rod 12 and the limit plate 9, so that the fitting rod 12 The sliding speed inside the limit plate 9 becomes slow, and the vibration absorption of the rubber seat 29 can reduce the vibration of the collector 3. The liquid ultrasonic flowmeter 4 can be used to develop a flowmeter based on the principle that the propagation speed of water in the flowing medium of the pipe body 1 is equal to the vector sum of the average flow velocity of the measured medium and the speed of the sound wave in the static medium. When the liquid ultrasonic flowmeter 4 is performing detection, the delayed collector 3 can perform delayed collection of the detection data of the liquid ultrasonic flowmeter 4 through timing and transmit the signal to the external control end 4.
[0024] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A time delay acquisition device for a timing system of a liquid ultrasonic flowmeter, comprising a tube body (1), characterized in that: The upper surface of the tube body (1) is provided with a liquid ultrasonic flowmeter (4), the front surface of the liquid ultrasonic flowmeter (4) is fixedly connected to a connecting plate (17), the side surface of the connecting plate (17) is fixedly connected to a bracket (8), and the upper surface and lower surface of the connecting plate (17) are both fixedly connected to a limit plate (9); The bracket (8) is fixedly connected to a first spring (10) inside, and the end of the first spring (10) away from the bracket (8) is fixedly connected to a fitting seat (16), and a rubber seat (29) is provided on the rear surface of the fitting seat (16), and a support plate (13) is provided on the upper surface and the lower surface of the rubber seat (29), and both sides of the support plate (13) are fixedly connected to a transverse plate (15), and the front surface of the transverse plate (15) is fixedly connected to a fixed seat (14), and the front surface of the fixed seat (14) is fixedly connected to a fitting rod (12), and the fitting rod (12) is fitted with the inside of the limit plate (9), and the outer surface of the fitting rod (12) is provided with a rubber sleeve (11).
2. The time delay acquisition device for a liquid ultrasonic flowmeter timing system according to claim 1, characterized in that: The front surface of the bracket (8) is fixedly connected to a mounting plate (7), the front surface of the mounting plate (7) is provided with a friction pad (6), and openings (5) are provided inside the friction pad (6) and the mounting plate (7).
3. The time delay acquisition device for a liquid ultrasonic flowmeter timing system according to claim 1, characterized in that: The front surface of the liquid ultrasonic flowmeter (4) is fixedly connected to a mosaic plate (18), and the mosaic plate (18) is mosaic-connected to the inside of the mounting plate (7), and the front surface of the mosaic plate (18) is fixedly connected to a collector (3).
4. The time delay acquisition device for a liquid ultrasonic flowmeter timing system according to claim 3, characterized in that: The interlocking plate (18) and the interior of the opening (5) are interlocked with an interlocking block (19), the upper surface and the lower surface of the interlocking block (19) are fixedly connected with a metal plate (20), the rear surface of the metal plate (20) is provided with a magnet (21), and the magnet (21) is attracted to the front surface of the interlocking plate (18).
5. The time delay acquisition device for a timing system of a liquid ultrasonic flowmeter according to claim 4, characterized in that: A first groove (26) is provided on the rear surface of the engaging block (19), a rubber rod (28) is provided inside the first groove (26), and a suction disk (27) is provided at one end of the rubber rod (28) away from the first groove (26).
6. The time delay acquisition device for a timing system of a liquid ultrasonic flowmeter according to claim 4, characterized in that: A second groove (22) is provided on both sides of the engaging block (19), a second spring (23) is fixedly connected inside the second groove (22), and the length of the second spring (23) is greater than the depth of the second groove (22).
7. The time delay acquisition device for a liquid ultrasonic flowmeter timing system according to claim 6, characterized in that: One end of the second spring (23) away from the second groove (22) is fixedly connected to an elastic plate (24), and a rubber pad (25) is provided on the side surface of the elastic plate (24).
8. The time delay acquisition device for a liquid ultrasonic flowmeter timing system according to claim 1, characterized in that: The front and rear ends of the tube body (1) are both fixedly connected to flanges (2), and the flanges (2) are in communication with the tube body (1).
9. The time delay acquisition device for a liquid ultrasonic flowmeter timing system according to claim 1, characterized in that: The liquid ultrasonic flowmeter (4) is electrically connected to the collector (3), and a display screen is provided on the upper surface of the liquid ultrasonic flowmeter (4).
10. A method for collecting time delay of a timing system of a liquid ultrasonic flowmeter according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The pipe body (1) can be connected to an external pipe body by using a flange (2). The liquid ultrasonic flowmeter (4) can be used to measure the propagation velocity of water in the flowing medium of the pipe body (1) equal to the vector sum of the average flow velocity of the measured medium and the velocity of the sound wave in the stationary medium. When the liquid ultrasonic flowmeter (4) is performing detection, the delayed collector (3) can perform delayed acquisition of the detection data of the liquid ultrasonic flowmeter by timing and transmit the signal to the external control end.