A transducer field installation and positioning fixture with flange seat
By designing a transducer installation and positioning fixture with a flange seat, the problem of inaccurate transducer installation was solved, enabling high-precision metering and stable use of the gas ultrasonic flow meter, adapting to different pipeline specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU JINGRUI INSTR CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-30
AI Technical Summary
In gas ultrasonic flow meters, the installation angle and position of the transducer are highly demanding. Conventional tooling is difficult to adapt to pipes of different diameters, leading to inaccurate installation, affecting measurement accuracy and increasing maintenance costs.
Design a transducer field installation positioning fixture with a flange seat, including fixture guide rail, fixture threaded rod and slider assembly. Adjustment is made by a scale and threaded rod to ensure that the transducer is installed at the correct angle and position.
It enables precise installation of the transducer, improves the metering accuracy and stability of the flow meter, reduces subsequent maintenance problems caused by inaccurate installation, and is compatible with pipes of different specifications.
Smart Images

Figure CN224424722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insertion ultrasonic instruments and meters, and in particular to a transducer field installation and positioning fixture with a flange seat. Background Technology
[0002] Compared with differential pressure instruments, volumetric instruments, and traditional velocity instruments, ultrasonic gas flow meters offer advantages such as a wide range, intelligent operation, easy installation, low cost, high precision, long service life, and low maintenance costs. Currently, they are widely used in the following fields: 1) metering management of high-pressure long-distance natural gas pipelines and provincial / municipal distribution stations; 2) urban gas metering management; 3) natural gas and coalbed methane extraction and utilization; 4) liquefied natural gas and liquefied petroleum gas; 5) metering management of gas consumption in large-scale industrial applications; 6) blast furnace gas and coke oven gas metering; and 7) other energy-saving and emission-reduction gas emission metering.
[0003] As the core component of ultrasonic flow meters, gas ultrasonic transducers have extremely high requirements for their installation angle and position in the installation and application environment. Inaccurate installation angles can lead to reduced signal transmission and reception, weaker signals, or even no signal at all, thus affecting the normal measurement of the flow meter. Incorrect installation positions will directly damage the measurement model foundation of the ultrasonic flow meter, causing decreased accuracy, signal anomalies, and increased maintenance costs. Furthermore, the diameters of pipelines in the field are often large and vary, and conventional transducer installation and positioning fixtures are not well-suited to different diameters, making it difficult to achieve a single fixture that can accurately position transducers of various diameters. Utility Model Content
[0004] The purpose of this utility model is to provide a transducer on-site installation positioning fixture with a flange seat, an auxiliary device for accurate installation and precise adjustment of fastening force, to ensure that the transducer can be installed at the angle required by the design and in the correct installation position.
[0005] To achieve the above objectives, this utility model provides a transducer field installation and positioning fixture with a flange seat, including a fixture guide rail and a fixture threaded rod. The fixture threaded rod is connected to the fixture guide rail via a fixture slider assembly. The fixture guide rail is connected to the fixture slider assembly via an internal hex screw. The fixture slider assembly includes a fixture slider one and a fixture slider two. The fixture slider two is disposed above the fixture slider one. The fixture slider one and the fixture slider two are connected by the internal hex screw.
[0006] Preferably, a threaded hole is provided on one side of the tooling slider, and the threaded hole is connected to the tooling guide rail through the internal hex screw. The upper part of the tooling slider is provided with a mounting hole, and the tooling threaded rod passes through the mounting hole and is connected to the threaded rod nut.
[0007] Preferably, there are two tooling threaded rods, each of which is connected to one end of a longitudinal connecting rod. A threaded rod nut is provided at the connection between the longitudinal connecting rod and the tooling threaded rod. Both ends of the longitudinal connecting rod are threaded, and the other end of the longitudinal connecting rod is connected to a flange assembly.
[0008] Preferably, the flange assembly is connected to the welded short pipe by double-ended bolts and nuts.
[0009] Preferably, the tooling guide rail is connected by a tooling guide rail connector, and the tooling guide rail connector is connected to the tooling guide rail by the internal hex screw.
[0010] Preferably, both the tooling guide rail and the tooling threaded rod are provided with a scale, and the tooling guide rail is provided with a plurality of threaded holes.
[0011] Therefore, this utility model adopts the above-mentioned transducer on-site installation positioning fixture with flange seat to ensure that the transducer can be installed at the angle required by the design, so as to achieve accurate flow metering and long-term stable use. It effectively reduces the maintenance problems caused by inaccurate installation angle of the transducer and insufficient or excessive tightening force. By setting the fixture guide rail and the fixture threaded rod, the installation position can be adjusted according to the outer diameter of the pipe, thereby improving the installation accuracy and adapting to transducers of different specifications.
[0012] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a transducer on-site installation and positioning fixture with a flange seat according to the present invention.
[0014] Figure 2 This is a top view of a transducer installation and positioning fixture with a flange seat according to the present invention.
[0015] Figure 3 This is a schematic diagram of an embodiment of the transducer on-site installation and positioning fixture with flange seat according to the present invention;
[0016] Figure 4 This is a front view of an embodiment of a transducer field installation and positioning fixture with a flange seat according to the present invention.
[0017] Figure Labels
[0018] 1. Tooling guide rail; 2. Tooling slider one; 3. Tooling slider two; 4. Tooling threaded rod; 5. Longitudinal connecting rod; 6. Flange assembly; 7. Tooling guide rail connector; 8. Hex socket head cap screw; 9. Double-ended bolt; 10. Nut; 11. Threaded rod nut; 12. Welded short pipe; 13. Scale; 14. Threaded hole. Detailed Implementation
[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0020] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0021] Example
[0022] Please see Figures 1-4 This utility model provides a transducer field installation and positioning fixture with a flange seat, including a fixture guide rail 1 and a fixture threaded rod 4. The fixture threaded rod 4 is connected to the fixture guide rail 1 through a fixture slider assembly. The fixture guide rail 1 is connected to the fixture slider assembly through an internal hex screw 8. The fixture guide rail 1 installs the fixture slider assembly and plays the role of supporting and adjusting the distance between the transducers at both ends, which can be adjusted according to the actual site conditions.
[0023] The tooling slider assembly includes tooling slider one 2 and tooling slider two 3. Tooling slider two 3 is located on top of tooling slider one 2. Tooling slider one 2 and tooling slider two 3 are connected by hex socket head cap screws 8. Tooling slider one 2 and tooling slider two 3 are used to fix and adjust the position of tooling threaded rod 4 to achieve longitudinal position adjustment. Tooling slider one 2 has a threaded hole 14 on its side, which is connected to tooling guide rail 1 by hex socket head cap screws 8 to fix tooling slider one 2 and prevent the slider from falling off. Tooling slider two 3 has a mounting hole on its upper part, through which tooling threaded rod 4 is connected to threaded rod nut 11.
[0024] Two threaded rods 4 are provided, each equipped with a scale 13 for longitudinal support and adjustment. Both threaded rods 4 are connected to one end of a longitudinal connecting rod 5, passing through the end of the longitudinal connecting rod 5. A threaded rod nut 11 is provided at the connection between the longitudinal connecting rod 5 and the threaded rod 4. The length of the threaded rod 4 can be adjusted according to the size of the pipe. Both ends of the longitudinal connecting rod 5 are threaded, and the other end of the longitudinal connecting rod 5 is connected to a flange assembly 6. The longitudinal connecting rod 5 is provided with external threads for connection to the flange assembly 6. The flange assembly 6 is connected to the welded short pipe 12 by double-ended bolts 9 and nuts 10, and the short pipe is fixed by the flange assembly 6.
[0025] The tooling guide rail 1 is connected via the tooling guide rail connector 7, which is connected to the tooling guide rail 1 via hex socket screws 8. The tooling guide rail 1 is equipped with a scale 13 and multiple threaded holes 14, which are used to adjust the length of each component, facilitating installation and on-site construction.
[0026] In practical use, install the two tooling guide rails 1 onto the tooling guide rail connector 7 using hex socket screws 8. After the guide rails are installed, assemble tooling slider one 2 and tooling slider two 3 using hex socket screws 8. Assemble the tooling threaded rod 4 with the holes facing upwards. Take out the welding short pipe 12 and fix it to the flange assembly 6 using double-ended bolts 9 and nuts. Take out the two tooling threaded rods 4, first screw in the threaded rod nut 11 and then pass it through the mounting hole on the tooling slider two 3. Then screw in another nut above the tooling threaded rod 4 to clamp the tooling threaded rod 4 at the tooling slider assembly. Remove the previously assembled tooling threaded rod 4. The flange assembly 6 and the welded short pipe 12 are assembled, noting the direction of the welded short pipe 12. The tooling threaded rod 4 is passed through the longitudinal connecting rod 5, and the threaded rod nut 11 is tightened from below. The longitudinal connecting rod 5 is then fixed to the flange assembly 6. The assembled tooling slider assembly, tooling threaded rod 4, flange assembly 6, and welded short pipe 12 are mounted on the assembled tooling guide rail 1. At both ends of the tooling guide rail 1, hex socket screws 8 are tightened to prevent the tooling slider assembly from falling off. The tooling assembly is then installed on the pipe to be tested. The spacing between the lateral tooling slider assemblies at the corresponding angle is calculated using the outer diameter of the pipe. Fine adjustment is made using the scale 13 on the tooling guide rail 1, and the hex socket screws 8 are tightened to secure it. The height of the longitudinal flange assembly 6 is calculated using the outer diameter of the pipe, and adjusted to the correct position using the scale 13 on the tooling threaded rod 4. The threaded rod nut 11 is then used to secure it. After adjusting as described above, the position of the welding short pipe 12 on the pipeline will be fixed. At this time, spot weld the welding short pipe 12 to fix it on the pipe section to be tested. Loosen the double-headed bolts 9 on the flange assembly 6 and the tightening screws on the tooling slider assembly, remove the tooling, and then weld the welding short pipe normally.
[0027] Therefore, this utility model adopts the above-mentioned transducer on-site installation positioning fixture with flange seat to ensure that the transducer can be installed at the angle required by the design, so as to achieve accurate flow metering and long-term stable use. It effectively reduces the maintenance problems caused by inaccurate installation angle of the transducer and insufficient or excessive tightening force. By setting the fixture guide rail and the fixture threaded rod, the installation position can be adjusted according to the outer diameter of the pipe, thereby improving the installation accuracy and adapting to transducers of different specifications.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A flanged transducer field installation positioning tool, characterized by: The tooling includes a tooling guide rail and a tooling threaded rod. The tooling threaded rod is connected to the tooling guide rail via a tooling slider assembly. The tooling guide rail is connected to the tooling slider assembly via an internal hex screw. The tooling slider assembly includes a tooling slider one and a tooling slider two. The tooling slider two is disposed above the tooling slider one. The tooling slider one and the tooling slider two are connected by the internal hex screw.
2. A transducer field mounting positioning tool with flange seat according to claim 1, characterized in that: The tooling slider has a threaded hole on one side, which is connected to the tooling guide rail by the internal hex screw. The upper part of the tooling slider has a mounting hole, and the tooling threaded rod passes through the mounting hole and is connected to the threaded rod nut.
3. A field mount positioning tool for a transducer with a flange, according to claim 2, wherein: Two tooling threaded rods are provided, and both tooling threaded rods are connected to one end of the longitudinal connecting rod. The connection between the longitudinal connecting rod and the tooling threaded rod is provided with the threaded rod nut. Both ends of the longitudinal connecting rod are provided with threads, and the other end of the longitudinal connecting rod is connected to the flange assembly.
4. The transducer field installation and positioning fixture with flange seat according to claim 3, characterized in that: The flange assembly is connected to the welded short pipe by double-ended bolts and nuts.
5. The transducer field installation and positioning fixture with flange seat according to claim 4, characterized in that: The tooling guide rail is connected by a tooling guide rail connector, and the tooling guide rail connector is connected to the tooling guide rail by the internal hex screw.
6. The transducer field installation and positioning fixture with flange seat according to claim 5, characterized in that: Both the tooling guide rail and the tooling threaded rod are equipped with scales, and the tooling guide rail is provided with multiple threaded holes.