CN111426358A - Ultrasonic measurement structure and assembling method thereof - Google Patents
Ultrasonic measurement structure and assembling method thereof Download PDFInfo
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- CN111426358A CN111426358A CN202010375827.6A CN202010375827A CN111426358A CN 111426358 A CN111426358 A CN 111426358A CN 202010375827 A CN202010375827 A CN 202010375827A CN 111426358 A CN111426358 A CN 111426358A
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- shell
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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
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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
- G01F15/14—Casings, e.g. of special material
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 device comprises at least one shell, a measuring section, at least one reflector and a base, wherein the shell and the measuring section are both cylindrical and are mutually combined together; the base is positioned in the shell, and the base and the shell are integrally formed; one side of base is fixed with the speculum, and the opposite side can be fixed with the rectification structure, and the one side of rectification structure is streamlined rectification structure, and the effective gain that brings can reduce loss of pressure and optimize the flow state of section of surveying the current. The invention has the beneficial effects that: the reflector is directly embedded on the shell, so that the dimensional accuracy required by ultrasonic waves is ensured; the back of the reflector is provided with a rectifying structure, so that the pressure loss is reduced, and the fluid distribution state of the flow measuring section is optimized; the integrated into one piece has simplified the equipment part, through the combination of casing grafting, has simplified the assembly degree of difficulty to the packaging efficiency has been improved.
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, particularly a small-caliber ultrasonic flow sensor, is generally measured by adopting a mode of reflecting ultrasonic waves by a reflector, and the common realization mode comprises 1, a plug-in sheet type reflector structure which is directly punched and molded and is generally fixed by an insert or directly matched and fixed with a pipe section body by the reflector, such as patent applied by the company, namely a measuring pipe section for an ultrasonic flow and calorimeter converter with a beam function, Chinese patent No. Z L201020275319.2, 2, the reflector is tightly held and fixed by two half pieces which are split in the longitudinal direction, such as Chinese patent No. 200810176267.0, and 3, the reflector is columnar and is fixed by a column of the columnar reflector and a matched round hole on the pipe section body.
Disclosure of Invention
The invention aims to provide an ultrasonic measuring structure and an assembling method thereof, which are assembled after integrated molding, have simple structure, convenient assembly, reliable positioning and few component parts and solve the problems in the background technology.
The technical scheme of the invention is as follows:
an ultrasonic measuring structure comprises at least one shell, a measuring section, at least one reflector and a base, wherein the shell and the measuring section are cylindrical and are mutually combined; the base is located the casing, and base and casing are integrated into one piece.
The base is positioned on the shell, a reflector is fixed on one side of the base, and a rectifying structure is arranged on the other side of the base; the rectification structure that sets up is streamlined rectification structure, and with base and casing integrated into one piece, the effective gain that brings can reduce pressure loss and optimize the flow state of section of surveying the current.
The measuring section is a reduced part positioned in the middle, and the inner diameter of the measuring section is smaller than that of the shell; the measuring section is an independent part and is combined with the shell to form an ultrasonic measuring structure; or the measuring section and one of the shells are of an integral structure and then combined with other shells to form the ultrasonic measuring structure.
The reflector is made of the same material as the shell, the base and the rectifying structure and is integrally formed with the shell, the base and the rectifying structure; or the reflector is made of a material different from that of the shell, the base and the rectifying structure, and after the shell, the base and the rectifying structure are integrally formed, the reflector is fixed in an injection molding embedding or bonding mode.
The number of the shells is two, namely a shell I and a shell II; the first shell is internally provided with a first reflector and a first base and can also be provided with a first rectifying structure, and the first shell is provided with a first sensor mounting hole.
When the second shell and the first shell are different parts, a second reflector and a second base are arranged in the second shell, a second sensor mounting hole is formed in the second shell, and a rectifying structure can be arranged on the second shell.
The first shell and the second shell are respectively positioned at two sides of the measuring section (the reducing part), the first shell is positioned at the upstream of the measuring section and is a water inlet part, and the first rectifying structure faces the water inlet direction; the second shell is positioned at the downstream of the measuring section and is a water outlet part; the first shell, the second shell and the measuring section are combined together and are arranged in the measuring pipe section together.
The measuring section is a reduced part positioned in the middle, and the inner diameter of the measuring section is smaller than that of the shell; the measuring section (the reduced part) can be a single part and combined with the shell to form an ultrasonic measuring structure, and the measuring section can also be integrated with one shell and then combined with other shells to form the ultrasonic measuring structure. The combination mode comprises the following steps: fastening, bonding or inserting.
The base sets up in the casing, and the speculum is installed to one side, and one side can be equipped with the rectification structure in addition, and the three can whole integrated into one piece, also can bond or the joint is fixed together.
The reflector can be made of the same material as the shell and the rectifying structure and is integrally formed with the shell and the rectifying structure; the reflector can also be made of a material different from that of the shell and the rectifying structure, and after the shell and the rectifying structure are integrally formed, the reflector is fixed in a mode of injection molding, embedding or bonding and the like.
The shell is provided with a sensor mounting hole, and the shell is positioned in the measuring pipeline through a sensor mounted in the sensor mounting hole.
The integrated molding is injection molding integrated molding.
The invention comprises at least two embodiments:
A. the shell I and the inner base are integrally formed to form a component I; a second base is arranged in the second shell and is integrated with the measuring section into a whole, and the second shell is a second component; the first component and the second component are combined together to form an ultrasonic measuring structure, and the combination mode comprises buckling, inserting or bonding and the like.
B. The shell I and the inner base are integrally formed to form a component I; the measuring section is separately and integrally formed and is a component II; the shell II and the inner base II are integrally formed to form a component III; the first component, the second component and the third component are combined together to form an ultrasonic measuring structure, and the combination mode comprises buckling, inserting or bonding and the like.
One side of a base in the first shell is provided with a first reflector, the other side of the base is provided with a first rectifying structure, and the first reflector can be formed by injection molding and insert molding with the first base and can also be formed by other fixing modes such as bonding and the like.
And a second reflecting mirror is arranged on one side of the second base in the second shell, a second rectifying structure is arranged on the other side of the second base, and the second reflecting mirror can be subjected to injection molding and insert molding with the second base and can also be subjected to other fixing modes such as bonding and the like.
When mode B, component one and component three may be the same part.
The assembling method of the invention at least comprises the following two modes:
an assembling method of an ultrasonic measuring structure comprises the following steps:
the first shell and the inner base are integrally formed and are a first assembly, and a first reflector and a first rectifying structure are arranged in the first assembly; a second base is arranged in the second shell and is integrated with the measuring section into a whole, the second shell is a second component, and a second reflector is arranged in the second component;
the end part of the measuring section of the component II and the end part of the shell of the component I are provided with mutually matched buckles, the component I and the component II are combined together through the buckles, the shell I is positioned at the upstream of the measuring section, the shell II is positioned at the downstream of the measuring section, and the reflector I and the reflector II are arranged correspondingly to each other to form an ultrasonic measuring structure;
the ultrasonic measuring structure is placed in the measuring pipe section, the first sensor and the second sensor are inserted into the first sensor mounting hole and the second sensor mounting hole respectively, the first sensor and the second sensor correspond to the first reflector and the second reflector in a matched mode respectively, the first sensor and the second sensor are located and fixed in the measuring pipe section, the first shell and the second shell are located and fixed in the measuring pipe section, and the ultrasonic measuring structure is located in the measuring pipe section.
An assembling method of an ultrasonic measuring structure comprises the following steps:
the first shell and the inner base are integrally formed and are a first assembly, and a first reflector and a first rectifying structure are arranged in the first assembly; the measuring section is separately and integrally formed and is a component II; a second base is arranged in the second shell and is integrally formed to form a third component, and a second reflector is arranged in the third component;
two end parts of a measuring section of the component II are respectively provided with a buckle which is respectively matched with one end part of a shell of the component I and the buckle of the end part of a shell of the component III, the component I, the component II and the component tee are combined together through the buckles, the shell I is positioned at the upstream of the measuring section, the shell II is positioned at the downstream of the measuring section, and the reflector I and the reflector II are correspondingly arranged to form an ultrasonic measuring structure;
the ultrasonic measuring structure is placed in the measuring pipe section, the first sensor and the second sensor are inserted into the first sensor mounting hole and the second sensor mounting hole respectively, the first sensor and the second sensor correspond to the first reflector and the second reflector in a matched mode respectively, the first sensor and the second sensor are located and fixed in the measuring pipe section, the first shell and the second shell are located and fixed in the measuring pipe section, and the ultrasonic measuring structure is located in the measuring pipe section.
The invention has the beneficial effects that:
1. the reflector is directly embedded on the shell, so that the dimensional accuracy required by ultrasonic waves is ensured;
2. the back of the reflector is provided with a rectifying structure, so that the pressure loss is reduced, and the fluid distribution state of the flow measuring section is optimized;
3. the integrated into one piece has simplified the equipment part, through the combination of casing grafting, has simplified the assembly degree of difficulty to the packaging efficiency has been improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a second embodiment of the present invention;
in the figure: the device comprises a first shell 1, a second shell 2, a first rectifying structure 3, a first reflector 4, a measuring section (a reduced part) 5, a first sensor mounting hole 6, a second sensor mounting hole 7, a second reflector 8, a first base 9, a second rectifying structure 10 and a second base 11.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
An ultrasonic measuring structure comprises at least one shell, a measuring section, at least one reflector and a base, wherein the shell and the measuring section are cylindrical and are mutually combined; the base is located the casing, and base and casing are integrated into one piece.
The base is positioned on the shell, a reflector is fixed on one side of the base, and a rectifying structure is arranged on the other side of the base; the rectification structure that sets up is streamlined rectification structure, and with base and casing integrated into one piece, the effective gain that brings can reduce pressure loss and optimize the flow state of section of surveying the current.
The measuring section is a reduced part positioned in the middle, and the inner diameter of the measuring section is smaller than that of the shell; the measuring section is an independent part and is combined with the shell to form an ultrasonic measuring structure; or the measuring section and one of the shells are of an integral structure and then combined with other shells to form the ultrasonic measuring structure.
The reflector is made of the same material as the shell, the base and the rectifying structure and is integrally formed with the shell, the base and the rectifying structure; or the reflector is made of a material different from that of the shell, the base and the rectifying structure, and after the shell, the base and the rectifying structure are integrally formed, the reflector is fixed in an injection molding embedding or bonding mode.
The shell is provided with a sensor mounting hole, and the shell is positioned in the measuring pipeline through a sensor mounted in the sensor mounting hole.
The number of the shells is two, namely a shell I1 and a shell II 2; the first shell 1 is internally provided with a first reflector 4 and a first base 9 and can also be provided with a first rectifying structure 3, and the first shell 1 is provided with a first sensor mounting hole 6.
When the second shell 2 and the first shell 1 are different parts, a second reflector 8 and a second base 11 are arranged in the second shell 2, a second sensor mounting hole 7 is formed in the second shell 2, and a rectifying structure can be arranged on the second shell 2.
The first shell 1 and the second shell 2 are respectively positioned at two sides of the measuring section (the reducing part) 5, the first shell 1 is positioned at the upstream of the measuring section 5 and is a water inlet part, and the first rectifying structure 3 faces the water inlet direction; the second shell 2 is positioned at the downstream of the measuring section 5 and is a water outlet part; the first shell 1, the second shell 2 and the measuring section 5 are combined together and are arranged in the measuring pipe section together.
The measuring section is a reduced part positioned in the middle, and the inner diameter of the measuring section is smaller than that of the shell; the measuring section (the reduced part) can be a single part and combined with the shell to form an ultrasonic measuring structure, and the measuring section can also be integrated with one shell and then combined with other shells to form the ultrasonic measuring structure. The combination mode comprises the following steps: fastening, bonding or inserting.
The base sets up in the casing, and the speculum is installed to one side, and one side can be equipped with the rectification structure in addition, and the three can whole integrated into one piece, also can bond or the joint is fixed together.
The reflector can be made of the same material as the shell and the rectifying structure and is integrally formed with the shell and the rectifying structure; the reflector can also be made of a material different from that of the shell and the rectifying structure, and after the shell and the rectifying structure are integrally formed, the reflector is fixed in a mode of injection molding, embedding or bonding and the like.
The integrated molding is injection molding integrated molding.
The invention comprises at least two embodiments:
A. the shell I1 and the base I9 inside are integrally formed to form a component I; a second base 11 is arranged in the second shell 2 and is integrated with the measuring section 5 into a whole, and the second shell is a second component; the first component and the second component are combined together to form an ultrasonic measuring structure, and the combination mode comprises buckling, inserting or bonding and the like.
B. The shell I1 and the base I9 inside are integrally formed to form a component I; the measuring section 5 is formed integrally and independently and is a component II; the shell II 2 and the inner base II 11 are integrally formed to form a component III; the first component, the second component and the third component are combined together to form an ultrasonic measuring structure, and the combination mode comprises buckling, inserting or bonding and the like.
One side of a first base 9 in the first shell 1 is provided with a first reflector 4, the other side of the first base is provided with a first rectifying structure 3, and the first reflector 4 can be formed by injection molding and insert molding with the first base 9 or can be formed by other fixing modes such as bonding and the like.
A second reflector 8 is arranged on one side of a second base 11 in the second shell 2, a second rectifying structure 10 is arranged on the other side of the second base, and the second reflector 8 can be formed by injection molding and insert molding with the second base 11 or can be formed by other fixing modes such as bonding and the like.
When mode B, component one and component three may be the same part.
The assembling method of the invention at least comprises the following two modes:
an assembling method of an ultrasonic measuring structure comprises the following steps:
the shell I1 and the inner base I9 are integrally formed and are a component I, and a reflector I4 and a rectifying structure I3 are arranged in the component I; a second base 11 is arranged in the second shell 2 and is integrated with the measuring section 5 into a whole, the second shell is a second component, and a second reflector 8 is arranged in the second component;
the end part of the measuring section 5 of the component II and the end part of the shell of the component I are provided with mutually matched buckles, the component I and the component II are combined together through the buckles, the shell I1 is positioned at the upstream of the measuring section 5, the shell II 2 is positioned at the downstream of the measuring section 5, and the reflector I4 and the reflector II 8 are correspondingly arranged with each other to form an ultrasonic measuring structure;
the ultrasonic measurement structure is placed in the measurement pipe section, the first sensor and the second sensor are inserted into the first sensor mounting hole 6 and the second sensor mounting hole 7 respectively, the first sensor and the second sensor are matched and correspond to the first reflector 4 and the second reflector 8 respectively, the first sensor and the second sensor are positioned and fixed in the measurement pipe section through the first shell 1 and the second shell 2, and the ultrasonic measurement structure is positioned in the measurement pipe section.
An assembling method of an ultrasonic measuring structure comprises the following steps:
the shell I1 and the inner base I9 are integrally formed and are a component I, and a reflector I4 and a rectifying structure I3 are arranged in the component I; the measuring section 5 is formed integrally and independently and is a component II; a second base 11 is arranged in the second shell 2 and is integrally formed to form a third component, and a second reflector 8 is arranged in the third component;
two end parts of a measuring section 5 of the component II are respectively provided with a buckle which is matched with a buckle at one end part of a shell of the component I and a buckle at the two end parts of a shell of the component III, the component I, the component II and the component tee are combined together through the buckles, the shell I1 is positioned at the upstream of the measuring section 5, the shell II 2 is positioned at the downstream of the measuring section 5, and the reflector I4 and the reflector II 8 are correspondingly arranged to form an ultrasonic measuring structure;
the ultrasonic measurement structure is placed in the measurement pipe section, the first sensor and the second sensor are inserted into the first sensor mounting hole 6 and the second sensor mounting hole 7 respectively, the first sensor and the second sensor are matched and correspond to the first reflector 4 and the second reflector 8 respectively, the first sensor and the second sensor are positioned and fixed in the measurement pipe section through the first shell 1 and the second shell 2, and the ultrasonic measurement structure is positioned in the measurement pipe section.
Claims (10)
1. An ultrasonic measurement structure, characterized in that: the device comprises at least one shell, a measuring section, at least one reflector and a base, wherein the shell and the measuring section are both cylindrical and are mutually combined together; the base is located the casing, and base and casing are integrated into one piece.
2. An ultrasonic measuring structure according to claim 1, wherein: the base is positioned on the shell, a reflector is fixed on one side of the base, and a rectifying structure is arranged on the other side of the base; the rectification structure that sets up is streamlined rectification structure, and with base and casing integrated into one piece, the effective gain that brings can reduce pressure loss and optimize the flow state of section of surveying the current.
3. An ultrasonic measuring structure according to claim 1 or 2, characterized in that: the measuring section is a reduced part positioned in the middle, and the inner diameter of the measuring section is smaller than that of the shell; the measuring section is an independent part and is combined with the shell to form an ultrasonic measuring structure; or the measuring section and one of the shells are of an integral structure and then combined with other shells to form the ultrasonic measuring structure.
4. An ultrasonic measuring structure according to claim 2, wherein: the reflector is made of the same material as the shell, the base and the rectifying structure and is integrally formed with the shell, the base and the rectifying structure; or the reflector is made of a material different from that of the shell, the base and the rectifying structure, and after the shell, the base and the rectifying structure are integrally formed, the reflector is fixed in an injection molding embedding or bonding mode.
5. An ultrasonic measuring structure according to claim 1 or 2, characterized in that: the number of the shells is two, namely a shell I (1) and a shell II (2); the first shell (1) is internally provided with a first reflector (4), a first rectifying structure (3) and a first base (9), and the first shell (1) is provided with a first sensor mounting hole (6).
6. An ultrasonic measuring structure according to claim 5, wherein: the first shell (1) and the second shell (2) are respectively positioned at two sides of the measuring section (5), the first shell (1) is positioned at the upstream of the measuring section (5) and is a water inlet part, and the first rectifying structure (3) faces the water inlet direction; the second shell (2) is positioned at the downstream of the measuring section (5) and is a water outlet part; the first shell (1), the second shell (2) and the measuring section (5) are combined together and are jointly arranged in the measuring pipe section.
7. An ultrasonic measuring structure according to claim 5, wherein: the shell I (1) and the rectifying structure I (3) inside are integrally formed and are a component I; the second shell (2) and the measuring section (5) are integrated into a whole and are a second component; the first component and the second component are combined together to form the ultrasonic measuring structure.
8. An ultrasonic measuring structure according to claim 5, wherein: the shell I (1) and the rectifying structure I (3) inside are integrally formed and are a component I; the measuring section (5) is formed into a second component in a single integral mode; the shell II (2) and the rectifying structure II (10) inside are integrally formed to form a component III; the first component, the second component and the third component are combined together to form an ultrasonic measuring structure.
9. An assembling method of an ultrasonic measuring structure is characterized by comprising the following steps:
the shell I (1) and the inner base I (9) are integrally formed and are an assembly I, and a reflector I (4) and a rectifying structure I (3) are arranged in the assembly I; a second base (11) is arranged in the second shell (2) and is integrated with the measuring section (5) into a whole, the second shell is an assembly II, and a second reflector (8) is arranged in the assembly II;
the end part of the measuring section (5) of the component II and the end part of the shell of the component I are provided with mutually matched buckles, the component I and the component II are combined together through the buckles, the shell I (1) is positioned at the upstream of the measuring section (5), the shell II (2) is positioned at the downstream of the measuring section (5), and the reflector I (4) and the reflector II (8) are correspondingly arranged to form an ultrasonic measuring structure;
the ultrasonic measurement structure is placed in the measurement pipe section, the first sensor and the second sensor are inserted into the first sensor mounting hole (6) and the second sensor mounting hole (7) respectively, the first sensor and the second sensor correspond to the first reflector (4) and the second reflector (8) in a matching mode, the first sensor and the second sensor are located and fixed in the measurement pipe section through the first shell (1) and the second shell (2) in a pair, and the ultrasonic measurement structure is located in the measurement pipe section.
10. An assembling method of an ultrasonic measuring structure is characterized by comprising the following steps:
the shell I (1) and the inner base I (9) are integrally formed and are an assembly I, and a reflector I (4) and a rectifying structure I (3) are arranged in the assembly I; the measuring section (5) is formed into a second component in a single integral mode; a second base (11) is arranged in the second shell (2) and is integrally formed to form a third component, and a second reflector (8) is arranged in the third component;
two end parts of a measuring section (5) of the second component are respectively provided with a buckle which is matched with a buckle at one end part of a shell of the first component and a buckle at the two end parts of a shell of the third component, the first component, the second component and the third component are combined together through the buckles, the first shell (1) is positioned at the upstream of the measuring section (5), the second shell (2) is positioned at the downstream of the measuring section (5), and the first reflector (4) and the second reflector (8) are arranged correspondingly to form an ultrasonic measuring structure;
the ultrasonic measurement structure is placed in the measurement pipe section, the first sensor and the second sensor are inserted into the first sensor mounting hole (6) and the second sensor mounting hole (7) respectively, the first sensor and the second sensor correspond to the first reflector (4) and the second reflector (8) in a matching mode, the first sensor and the second sensor are located and fixed in the measurement pipe section through the first shell (1) and the second shell (2) in a pair, and the ultrasonic measurement structure is located in the measurement pipe section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010375827.6A CN111426358A (en) | 2020-05-07 | 2020-05-07 | Ultrasonic measurement structure and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010375827.6A CN111426358A (en) | 2020-05-07 | 2020-05-07 | Ultrasonic measurement structure and assembling method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024010735A1 (en) * | 2022-07-07 | 2024-01-11 | Badger Meter, Inc. | Ultrasonic flow meter including reflectors positioned by injection molding tool |
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2020
- 2020-05-07 CN CN202010375827.6A patent/CN111426358A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024010735A1 (en) * | 2022-07-07 | 2024-01-11 | Badger Meter, Inc. | Ultrasonic flow meter including reflectors positioned by injection molding tool |
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