Non-contact detection device based on wet-type probe of ultrasonic flowmeter
By designing a non-contact ultrasonic flow meter wet probe and utilizing the detachable connection of the mounting short pipe and plug, the problems of flow meter being impossible to remove and replace and complex installation are solved, achieving convenient loading, unloading, replacement and a simplified installation process.
Patent Information
- Application Number
- CN202520679907.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-11
AI Technical Summary
The existing flow meters are in contact with the medium inside the pipeline, making them impossible to remove and replace, and the installation is also complicated.
The ultrasonic flow meter adopts a non-contact wet probe design, which allows for convenient replacement of the flow meter through the detachable connection of the installation short pipe and plug, avoiding direct contact with the medium inside the pipeline.
It enables convenient installation, removal, and replacement of the flow meter while the medium is flowing, simplifies the installation process, and avoids direct contact between the flow meter and the medium.
Smart Images

Figure CN223976700U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flow detection technology, and in particular to a non-contact detection device based on a wet probe of an ultrasonic flow meter. Background Technology
[0002] A wet probe detection device based on an ultrasonic flow meter is a device used to measure the flow rate of liquids or gases. Its core principle is to use the propagation characteristics of ultrasonic waves in fluids to calculate flow velocity and flow rate.
[0003] The flow meters in existing detection devices are generally in contact with the medium inside the pipe. Therefore, the flow meters cannot be removed and replaced while the medium is flowing in the pipe. In addition, the installation of existing flow meters is complicated. Utility Model Content
[0004] The present invention addresses the problem of providing a non-contact detection device based on a wet probe of an ultrasonic flow meter. This solves the problem that existing detection devices typically involve the flow meter coming into contact with the medium inside the pipe, making it impossible to remove and replace the flow meter while the medium is flowing in the pipe. Additionally, existing flow meters are complex to install.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A non-contact detection device based on an ultrasonic flow meter wet probe includes a pipe, a measuring hole, a mounting short pipe, a plug, and an ultrasonic flow meter wet probe. The measuring hole is symmetrically opened on the outside of the pipe. Two mounting short pipes are installed obliquely on the outside of the measuring hole and on the pipe, and the center lines of the two mounting short pipes are on the same straight line. A plug is detachably installed inside the mounting short pipe, and an ultrasonic flow meter wet probe is detachably installed on the plug.
[0007] Preferably, the pipe has a first internal thread, and one end of the plug has a first external thread that matches the first internal thread, and the pipe and the plug are threadedly connected.
[0008] Preferably, the other end of the plug has a mounting hole, the mounting hole has a second internal thread, one end of the ultrasonic flow meter wet probe has a second external thread that matches the second internal thread, and the mounting short pipe and the plug are threaded together.
[0009] Preferably, the other end of the ultrasonic flow meter wet probe is configured as a connection terminal, and the connection terminal is electrically connected to an external controller.
[0010] Preferably, a first hexagonal block is provided on the outer side of the middle part of the plug, and a second hexagonal block is provided on the outer side of the middle part of the wet probe of the ultrasonic flow meter.
[0011] The beneficial effects of this utility model are: the mounting short pipe, the plug and the ultrasonic flow meter wet probe are detachably connected, and the mounting short pipe is sealed by the plug. The ultrasonic flow meter wet probe does not come into direct contact with the medium in the pipe, which facilitates the installation, removal and replacement of the ultrasonic flow meter wet probe when the medium is flowing in the pipe. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall first structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the overall second structure of this utility model;
[0014] Figure 3 This is a cross-sectional view of the pipe of this utility model.
[0015] Legend:
[0016] 1. Pipe; 2. Measuring hole; 3. Installation short pipe; 4. Plug; 5. Wet probe of ultrasonic flow meter; 6. First internal thread; 7. First external thread; 8. Mounting hole; 9. Second internal thread; 10. First hexagonal block; 11. Second external thread; 12. Connecting end; 13. Second hexagonal block. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0018] Specific implementation examples are given below.
[0019] See Figures 1-3 A non-contact detection device based on a wet ultrasonic flow meter probe includes a pipe 1, a measuring hole 2, a mounting short pipe 3, a plug 4, and a wet ultrasonic flow meter probe 5. The measuring hole 2 is symmetrically opened on the outside of the pipe 1. Two mounting short pipes 3 are installed obliquely on the outside of the measuring hole 2 and on the pipe 1, and the center lines of the two mounting short pipes 3 are on the same straight line. The plug 4 is detachably installed inside the mounting short pipe 3, and the wet ultrasonic flow meter probe 5 is detachably installed on the plug 4.
[0020] The pipe 1 has a first internal thread 6, and one end of the plug 4 has a first external thread 7 that matches the first internal thread 6. The pipe 1 and the plug 4 are threaded together. The other end of the plug 4 has a mounting hole 8, and the mounting hole 8 has a second internal thread 9. One end of the ultrasonic flow meter wet probe 5 has a second external thread 11 that matches the second internal thread 9. The mounting short pipe 3 and the plug 4 are threaded together. The other end of the ultrasonic flow meter wet probe 5 is set as a connecting end 12, and the connecting end 12 is electrically connected to an external controller. The mounting short pipe 3, the plug 4 and the ultrasonic flow meter wet probe 5 are detachably connected, and the mounting short pipe 3 is sealed by the plug 4. The ultrasonic flow meter wet probe 5 does not directly contact the medium in the pipe 1, which facilitates the installation, removal and replacement of the ultrasonic flow meter wet probe 5 when the medium is flowing in the pipe 1.
[0021] A first hexagonal block 10 is provided on the outer side of the middle part of the plug 4, and a second hexagonal block 13 is provided on the outer side of the middle part of the ultrasonic flow meter wet probe 5. This facilitates the fitting of the first hexagonal block 10 and the second hexagonal block 13 with the tool, and the plug 4 and the ultrasonic flow meter wet probe 5 can be rotated and disassembled using the tool.
[0022] Measuring holes 2 are made in pipe 1 as welding points for two short pipes 3. A straightening rod with the same diameter as measuring hole 2 is passed through measuring hole 2. The two short pipes 3 are respectively fitted onto the straightening rod and welded. After welding, the straightening rod is removed. Teflon tape is wrapped around the outside of the first external thread 7 of the plug 4. Then, the plug 4 is connected to the first internal thread 6 of the short pipe 3 through the first external thread 7. Teflon tape is wrapped around the second external thread 11 of the ultrasonic flowmeter wet probe 5. Coupling agent is applied to the end face of the ultrasonic flowmeter wet probe 5 and screwed into the mounting hole 8 of the plug 4. It is connected through the second external thread 11 and the second internal thread 9. The plug 4 contacts the end face of the ultrasonic flowmeter wet probe 5. The medium in pipe 1 is detected by the two ultrasonic flowmeter wet probes 5.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A non-contact detection device based on a wet probe of an ultrasonic flow meter, characterized in that, Including pipeline (1), measuring hole (2), installation short pipe (3), plug (4) and ultrasonic flowmeter wet probe (5), the pipeline (1) outside symmetry is provided with measuring hole (2), the measuring hole (2) outside and located on the pipeline (1) is installed with two installation short pipe (3) on the inclination, and the center line of two installation short pipe (3) is located on the same straight line, the installation short pipe (3) is detachably installed with plug (4), the plug (4) is detachably installed with ultrasonic flowmeter wet probe (5).
2. A non-contact detection device based on a wet probe of an ultrasonic flow meter according to claim 1, characterized in that, The pipeline (1) is provided with a first internal thread (6), one end of the plug (4) is provided with a first external thread (7) matched with the first internal thread (6), and the pipeline (1) and the plug (4) are screwed.
3. A non-contact detection device based on a wet probe of an ultrasonic flow meter according to claim 2, characterized in that, The other end of the plug (4) is provided with a mounting hole (8), the mounting hole (8) is provided with a second internal thread (9), one end of the ultrasonic flowmeter wet probe (5) is provided with a second external thread (11) matched with the second internal thread (9), and the installation short pipe (3) and the plug (4) are screwed.
4. The non-contact detection device based on the wet probe of the ultrasonic flowmeter according to claim 3, characterized in that, The other end of the ultrasonic flowmeter wet probe (5) is provided with a connecting end (12), and the connecting end (12) is electrically connected with an external controller.
5. A non-contact detection device based on a wet probe of an ultrasonic flow meter according to claim 4, characterized in that, The middle of the plug (4) is provided with a first hexagonal block (10), and the middle of the ultrasonic flowmeter wet probe (5) is provided with a second hexagonal block (13).