CN115507906A - Ultrasonic measurement structure and assembling method thereof - Google Patents
Ultrasonic measurement structure and assembling method thereof Download PDFInfo
- Publication number
- CN115507906A CN115507906A CN202211146220.6A CN202211146220A CN115507906A CN 115507906 A CN115507906 A CN 115507906A CN 202211146220 A CN202211146220 A CN 202211146220A CN 115507906 A CN115507906 A CN 115507906A
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- reflector
- water inlet
- water outlet
- guide groove
- fluid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/662—Constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/10—Preventing damage by freezing or excess pressure or insufficient pressure
- G01F15/105—Preventing damage by hydraulic shocks
Abstract
The invention relates to an ultrasonic measuring structure and an assembling method thereof, belonging to the technical field of acoustics and sensing. The technical scheme is as follows: the inner walls of the two end parts of the beam fluid are respectively provided with a water inlet guide groove and a water outlet guide groove; the reflecting bodies are divided into a water inlet reflecting body and a water outlet reflecting body which are both formed by punching directly, the front parts of the water inlet reflecting body and the water outlet reflecting body are respectively installed in a water inlet guide groove (6) and a water outlet guide groove (19), the water inlet reflecting body (2) and the water outlet reflecting body (3) of the bundle fluid (4) are mutually combined together and are jointly installed in the measuring pipe section body (1), the rear parts of the water inlet reflecting body and the water outlet reflecting body are respectively positioned outside the two ends of the bundle fluid, and at least one of the rear parts of the water inlet reflecting body and the water outlet reflecting body is in interference fit with the measuring pipe section body. The beam body is integrally formed and then assembled with the reflector, so that the beam body is simple in structure, convenient to assemble, reliable in positioning, few in component parts, and capable of simplifying assembly difficulty and improving assembly efficiency.
Description
Technical Field
The invention relates to an ultrasonic measuring structure and an assembling method thereof, which are used for measuring a flowing medium, in particular to an ultrasonic measuring structure for liquid or gas, and belong to the technical field of acoustics and sensing.
Background
At present, the existing ultrasonic flow sensor structure, especially the small-caliber ultrasonic flow sensor, usually adopts the mode of beam fluid and reflector reflection ultrasonic wave to measure, and the common reflector fixing mode implementation mode includes: 1. inserted sheet formula reflector structure, direct stamping forming directly relies on the reflector itself to cooperate with the pipeline section body fixed, like the patent of this company's application: the measuring pipe section for the ultrasonic flow and calorimeter converter with the beam function has a fixing mode that a reflector and a pipe section body are fixed in a static matching mode, and the fixing mode is firm and reliable; 2. the reflector directly moulds plastics with the casing base and inlays integrated into one piece, and whole beam fluid need be cut apart into several parts and just can satisfy molding process, need assemble into an organic whole separately after the shaping, like the patent of this company application: ZL202010661469.5 ultrasonic wave measuring structure and its assembling method, the structure is an assembly, and the parts are easy to shake after being assembled, and have high requirements for processing and assembling. The ultrasonic flow sensor structure has the defects of high assembly requirement precision, need of special assembly tools, more flow sensor component parts, complex structure, low assembly efficiency and the like in use.
Disclosure of Invention
The invention aims to provide an ultrasonic measuring structure and an assembling method thereof, wherein a beam body is integrally formed and then assembled with a reflector, the structure is simple, the assembly is convenient, the positioning is reliable, the number of components is small, the assembly difficulty is simplified, the assembly efficiency is improved, and the problems in the background art are solved.
The technical scheme of the invention is as follows:
an ultrasonic measuring structure comprises at least one measuring pipe section body, a beam fluid and a pair of reflectors, wherein the beam fluid is in an integrally formed cylindrical shape, and the inner walls of two end parts of the beam fluid are respectively provided with a water inlet guide groove and a water outlet guide groove; the reflecting bodies are divided into a water inlet reflecting body and a water outlet reflecting body which are both formed by direct punching, the front parts of the water inlet reflecting body and the water outlet reflecting body are respectively arranged in the water inlet guide groove and the water outlet guide groove, the water inlet reflecting body and the water outlet reflecting body of the beam fluid are mutually combined and are jointly arranged in the measuring pipe section body, the rear parts of the water inlet reflecting body and the water outlet reflecting body are respectively positioned outside the two ends of the beam fluid, and at least one of the rear parts of the water inlet reflecting body and the water outlet reflecting body is in interference fit with the measuring pipe section body.
The sizes of the water inlet guide groove and the water outlet guide groove on the beam fluid are slightly smaller than the thickness of the reflector, the beam fluid is made of elastic non-metal materials, and the front parts of the water inlet reflector and the water outlet reflector can be fixed in the water inlet guide groove and the water outlet guide groove after being installed, so that the beam fluid does not shake.
The water inlet reflector and the water outlet reflector are identical in structure and are respectively provided with a reflector support and a reflector, barbs are arranged on two side faces of the front portion of the reflector support respectively and are used for being fixed with the beam body, a reserved hole is formed in the position, corresponding to the barbs, of the beam body, and the barbs are installed in the reserved hole of the beam body, namely in place. Or the water inlet reflector and the water outlet reflector are arranged in the beam fluid guide groove and fixed in an adhesive mode.
The beam body is provided with a preformed hole for being matched with the barb on the emitter for installation, and the preformed hole can also be a blind hole.
The width between the end surfaces of the two sides of the rear part of the reflector bracket is larger than the diameter of the beam body and the inner diameter of the measuring pipe section body.
The beam fluid and the reflector bracket are arranged in the measuring pipe section body, and the end surface of the rear part of the reflector bracket is in interference fit with the inner wall of the measuring pipe section body; the interference fit can be only the interference fit between the water inlet reflector and the measuring pipe section body, or the interference fit between the water inlet reflector and the water outlet reflector can be simultaneously realized.
The water inlet reflector and the water outlet reflector are integrally formed by stamping, the end face of the reflector support is provided with a groove for increasing elasticity when the reflector support is assembled and fixed with the measuring pipe section body, and the groove can be U-shaped or V-shaped and other shapes.
The water inlet reflector and the water outlet reflector are integrally formed by stamping, a reflector is formed on the reflector in a bending mode and used for ultrasonic reflection, and the reflector is in any shape including oval, round, rectangular or irregular.
The beam fluid is provided with a sensor mounting hole, a measuring section and a rectifying structure, the measuring section is a reduced part positioned in the middle of the beam fluid, and the inner diameter of the measuring section is smaller than that of the beam fluid shell; a port is provided with a rectifying structure; the rectifying structure is formed by arranging a plurality of convex edges on the inner wall of the end part of the fluid restraining shell, and the shapes of the convex edges can be the same or different. The beam body and the beam body are integrally formed, so that the brought effective gain can reduce pressure loss and optimize the flow state of the flow measurement section.
The outer wall of the water inlet end of the beam fluid is provided with a water chute which is not communicated with the inner wall along the axial direction of the beam fluid body; or the water chute is communicated with the inner wall of the shell along the circumferential radial direction of the beam body; and a sealing ring groove is arranged on the outer wall of the tail end of the measuring section.
The beam fluid is provided with a sensor mounting hole, and the beam fluid is positioned in the measuring pipe section body through a sensor 5 arranged in the sensor mounting hole.
An assembling method of an ultrasonic measuring structure comprises the following steps:
the beam body is integrally formed by injection molding, and a water inlet guide groove and a water outlet guide groove of a water inlet reflector and a water outlet reflector are respectively arranged in the two ports; the water inlet reflector is assembled in the water inlet guide groove, the water outlet reflector is assembled in the water outlet guide groove, and the reflector of the water inlet reflector and the reflector of the water outlet reflector correspond to each other to form an ultrasonic measurement structure; the ultrasonic measurement structure is placed in the measurement pipe segment body, the sensors are inserted into the sensor mounting holes respectively, the pair of sensors correspond to the reflector of the water inlet reflector and the reflector of the water outlet reflector in a matched mode respectively, meanwhile, the sensors are used for positioning and fixing the bundle fluid, the water inlet reflector and the water outlet reflector assembly in the measurement pipe segment body, and the ultrasonic measurement structure is positioned in the measurement pipe segment body.
The invention has the beneficial effects that: 1. the beam fluid and the reflector are separately and integrally formed, so that the forming process is simplified, the beam fluid is of an integral structure, the assembly parts are simplified, and the dimensional accuracy required by ultrasonic waves is ensured; 2. the beam fluid and reflector assembly part is arranged in the measuring pipe segment body, and the reflector is in interference fit with the measuring pipe segment body to play a role in fixing; meanwhile, the sensor is arranged in the sensor mounting hole to play a role in positioning; the whole measuring structure is double-fixed, so that the structure is more stable and reliable; 3. the reflector and the beam body are combined in an inserting mode, so that the assembly difficulty is simplified, and the assembly efficiency is improved.
Drawings
FIG. 1 is an assembled schematic view of an ultrasonic measurement structure of the present invention;
FIG. 2 is a schematic diagram of the beam fluid structure of the present invention;
FIG. 3 is a schematic view of the water inlet reflector and the water outlet reflector of the present invention;
FIG. 4 is a schematic view of the reflector structure of the present invention;
in the figure: the device comprises a measuring pipe section body 1, a water inlet reflector 2, a water outlet reflector 3, a beam body 4, a sensor 5, a water inlet guide groove 6, a preformed hole 7, a sensor mounting hole 8, a measuring section 9, a rectifying structure 10, a water guide groove 11, a sealing groove 12, a reflector 13 of the water inlet reflector, a reflector 14 of the water outlet reflector, a reflector bracket 15, barbs 16, an end surface 17 of the reflector bracket, a groove 18 and a water outlet guide groove 19.
Detailed Description
The invention is further illustrated by the following examples in connection with the accompanying drawings.
An ultrasonic measuring structure comprises at least one measuring pipe section body 1, a beam fluid 4 and a pair of reflectors, wherein the beam fluid 4 is in an integrally formed cylindrical shape, and the inner walls of two end parts of the beam fluid 4 are respectively provided with a water inlet guide groove 6 and a water outlet guide groove 19; the reflectors are divided into a water inlet reflector 2 and a water outlet reflector 3 which are both formed by direct punching, the front parts of the water inlet reflector 2 and the water outlet reflector 3 are respectively installed in a water inlet guide groove 6 and a water outlet guide groove 19, the water inlet reflector 2 and the water outlet reflector 3 of the beam body 4 are mutually combined and are jointly installed in the measuring pipe segment body 1, the rear parts of the water inlet reflector 2 and the water outlet reflector 3 are respectively positioned outside the two ends of the beam body 4, and at least one of the rear parts of the water inlet reflector 2 and the water outlet reflector 3 is in interference fit with the measuring pipe segment body 1.
The sizes of the water inlet guide groove 6 and the water outlet guide groove 19 on the beam fluid 4 are slightly smaller than the thickness of the reflector, the beam fluid 4 is made of elastic non-metal materials, and the front parts of the water inlet reflector 2 and the water outlet reflector 3 can be fixed in the water inlet guide groove 6 and the water outlet guide groove 19 after being installed, so that the beam fluid is not shaken.
The water inlet reflector 2 and the water outlet reflector 3 are identical in structure and are provided with a reflector support 15 and a reflector, barbs 16 are arranged on two side faces of the front portion of the reflector support respectively and are used for being fixed with the beam body 4, the beam body 4 is provided with a reserved hole 7 corresponding to the barb 16, and the barb 16 is installed in the reserved hole 7 of the beam body 4 and is installed in place. Or the water inlet reflector 2 and the water outlet reflector 3 are arranged in the beam fluid guide groove 6 and fixed in an adhesive mode.
The beam body 4 is provided with a preformed hole 7 for being matched and installed with an agnail on the emitter, and the preformed hole 7 can also be a blind hole.
The width between the two side end surfaces of the rear part of the reflector bracket is larger than the diameter of the beam fluid 4 and the inner diameter of the measuring pipe segment body 1,
the beam of fluid 4 and the reflector bracket are arranged in the measuring pipe section body 1, and the end surface 17 at the rear part of the reflector bracket is in interference fit with the inner wall of the measuring pipe section body; the interference fit can be only the interference fit between the water inlet reflector 2 and the measuring pipe segment body 1, or the interference fit between the water inlet reflector 2 and the water outlet reflector 3 can be simultaneously realized.
The water inlet reflector 2 and the water outlet reflector 3 are integrally formed by stamping, the end face of the reflector support is provided with a groove 18 for increasing elasticity when being assembled and fixed with the measuring pipe section body, and the groove can be U-shaped or V-shaped.
The water inlet reflector 2 and the water outlet reflector 3 are integrally formed by stamping, a reflector is formed on the reflector in a bending mode and used for ultrasonic reflection, and the reflector is in any shape including an oval shape, a round shape, a rectangular shape or an irregular shape.
The beam fluid is provided with a sensor mounting hole 8, a measuring section 9 and a rectifying structure 10, the measuring section 9 is a reduced part positioned in the middle of the beam fluid 4, and the inner diameter of the measuring section 9 is smaller than that of a shell of the beam fluid 4; a rectifying structure 10 is arranged on the port; the rectifying structure 10 is formed by arranging a plurality of convex edges on the inner wall of the end part of the shell of the beam body 4, and the shapes of the plurality of convex edges can be the same or different. The beam body 4 is integrally formed, so that the pressure loss can be reduced and the flow state of the current measuring section can be optimized by the brought effective gain.
The outer wall of the water inlet end of the beam fluid is provided with a water chute 11, and the water chute 11 is not communicated with the inner wall along the axial direction of the beam fluid; or the water chute 11 is communicated with the inner wall of the shell along the circumferential radial direction of the beam body; the outer wall of the tail end of the measuring section 9 is provided with a sealing ring groove 12.
The bundle fluid 4 is provided with a sensor mounting hole 8, and the sensor 5 mounted on the bundle fluid 4 through the sensor mounting hole 8 is positioned in the measurement pipe segment body 1.
An assembling method of an ultrasonic measuring structure comprises the following steps:
the beam fluid 4 is integrally formed by injection molding, and a water inlet guide groove 6 and a water outlet guide groove 19 of the water inlet reflector 2 and the water outlet reflector 3 are respectively arranged in the two ports; the water inlet reflector 2 is assembled in the water inlet guide groove 6, the water outlet reflector 3 is assembled in the water outlet guide groove 19, and the reflector 13 of the water inlet reflector and the reflector 14 of the water outlet reflector correspond to each other to form an ultrasonic measuring structure; the ultrasonic measurement structure is placed in the measurement pipe section body, the sensors 5 are respectively inserted into the sensor mounting holes 8, the pair of sensors 5 are respectively matched and correspond to the reflector 13 of the water inlet reflector and the reflector 14 of the water outlet reflector, meanwhile, the sensors 5 are used for positioning and fixing the assembly parts of the bundle fluid 4, the water inlet reflector 2 and the water outlet reflector 3 in the measurement pipe section body 1, and the ultrasonic measurement structure is positioned in the measurement pipe section body 1.
Claims (9)
1. An ultrasonic measurement structure, characterized in that: the device comprises at least one measuring pipe section body (1), a bundle fluid (4) and a pair of reflectors, wherein the bundle fluid (4) is in an integrally formed cylindrical shape, and the inner walls of two end parts of the bundle fluid (4) are respectively provided with a water inlet guide groove (6) and a water outlet guide groove (19); the reflector is divided into a water inlet reflector (2) and a water outlet reflector (3) which are both formed by direct stamping, the front parts of the water inlet reflector (2) and the water outlet reflector (3) are respectively installed in a water inlet guide groove (6) and a water outlet guide groove (19), the water inlet reflector (2) and the water outlet reflector (3) of the bundle fluid (4) are mutually combined together and are jointly installed in the measuring pipe section body (1), the rear parts of the water inlet reflector (2) and the water outlet reflector (3) are respectively positioned outside the two ends of the bundle fluid (4), and at least one of the rear parts of the water inlet reflector (2) and the water outlet reflector (3) is in interference fit with the measuring pipe section body (1).
2. An ultrasonic measuring structure according to claim 1, wherein: the size of the water inlet guide groove (6) and the water outlet guide groove (19) on the bundle fluid (4) is smaller than the thickness of the reflector, the bundle fluid (4) is made of elastic non-metal materials, and the front parts of the water inlet reflector (2) and the water outlet reflector (3) can be fixed in the water inlet guide groove (6) and the water outlet guide groove (19) after being installed.
3. An ultrasonic measuring structure according to claim 1 or 2, characterized in that: the water inlet reflector (2) and the water outlet reflector (3) are of the same structure and are respectively provided with a reflector bracket (15) and a reflector (13), barbs (16) are respectively arranged on two side surfaces of the front part of the reflector bracket and are used for being fixed with the bundle fluid (4), a reserved hole (7) is formed in the position, corresponding to the barb (16), of the bundle fluid (4), and the barb (16) is installed in the reserved hole (7) of the bundle fluid (4); or the water inlet reflector (2) and the water outlet reflector (3) are arranged in the beam fluid guide groove (6) and fixed in an adhesion mode.
4. An ultrasonic measuring structure according to claim 3, wherein: and a preformed hole (7) is formed in the beam fluid (4) and is used for being matched with the barb on the emitter for installation.
5. An ultrasonic measuring structure according to claim 3, characterized in that: the width between the two side end surfaces of the rear part of the reflector bracket is larger than the diameter of the beam fluid (4) and the inner diameter of the measuring pipe section body (1).
6. An ultrasonic measuring structure according to claim 3, characterized in that: the beam fluid (4) and the reflector bracket are arranged in the measuring pipe section body (1), and the end surface (17) at the rear part of the reflector bracket is in interference fit with the inner wall of the measuring pipe section body; the interference fit can be only the interference fit between the water inlet reflector (2) and the measuring pipe section body (1), and can also be the interference fit between the water inlet reflector (2) and the water outlet reflector (3).
7. An ultrasonic measuring structure according to claim 1 or 2, characterized in that: the water inlet reflector (2) and the water outlet reflector (3) are integrally formed by stamping, and grooves (18) are formed in the end faces of the reflector supports.
8. An ultrasonic measuring structure according to claim 1 or 2, characterized in that: the water inlet reflector (2) and the water outlet reflector (3) are integrally formed by stamping, and the reflectors are bent to form a reflector (13).
9. An assembling method of an ultrasonic measuring structure comprises the following steps: the beam fluid (4) is integrally formed by injection molding, and a water inlet guide groove (6) and a water outlet guide groove (19) of the water inlet reflector (2) and the water outlet reflector (3) are respectively arranged in the two ports; the water inlet reflector (2) is assembled in the water inlet guide groove (6), the water outlet reflector (3) is assembled in the water outlet guide groove (19), and the reflector (13) of the water inlet reflector and the reflector (14) of the water outlet reflector correspond to each other to form an ultrasonic measurement structure; the ultrasonic measurement structure is placed in the measurement pipe section body, the sensors (5) are respectively inserted into the sensor mounting holes (8), the pair of sensors (5) are respectively matched and correspond to a reflector (13) of the water inlet reflector and a reflector (14) of the water outlet reflector, meanwhile, the sensors (5) are used for positioning and fixing the bundle fluid (4), the water inlet reflector (2) and the water outlet reflector (3) assembly in the measurement pipe section body (1), and the ultrasonic measurement structure is positioned in the measurement pipe section body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211146220.6A CN115507906A (en) | 2022-09-20 | 2022-09-20 | Ultrasonic measurement structure and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211146220.6A CN115507906A (en) | 2022-09-20 | 2022-09-20 | Ultrasonic measurement structure and assembling method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115507906A true CN115507906A (en) | 2022-12-23 |
Family
ID=84503408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211146220.6A Pending CN115507906A (en) | 2022-09-20 | 2022-09-20 | Ultrasonic measurement structure and assembling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115507906A (en) |
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2022
- 2022-09-20 CN CN202211146220.6A patent/CN115507906A/en active Pending
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