CN217930415U - Transducer fixed knot constructs and gas table - Google Patents
Transducer fixed knot constructs and gas table Download PDFInfo
- Publication number
- CN217930415U CN217930415U CN202220970002.3U CN202220970002U CN217930415U CN 217930415 U CN217930415 U CN 217930415U CN 202220970002 U CN202220970002 U CN 202220970002U CN 217930415 U CN217930415 U CN 217930415U
- Authority
- CN
- China
- Prior art keywords
- transducer
- housing
- gas
- shell
- upstream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a transducer fixing structure and a gas meter, wherein the transducer fixing structure comprises a first shell, a transducer assembly and a compression box; the first shell is provided with a mounting hole; the transducer assembly is arranged in the mounting hole; the pressing box cover is arranged on the first shell and presses the transducer assembly. The utility model discloses improved the fixed knot of gas table transducer and constructed, avoided the difference that each transducer of transducer subassembly independent installation caused, guaranteed the holistic uniformity of transducer subassembly, improved the accuracy of gas table measurement.
Description
Technical Field
The utility model relates to a flow metering device technical field especially relates to a transducer fixed knot constructs and gas table.
Background
The ultrasonic gas meter is a novel gas meter different from a traditional mechanical diaphragm type flowmeter and an electronic diaphragm type flowmeter, and the working principle of the ultrasonic gas meter is as follows: measuring the gas flow rate by adopting a time difference method principle, namely reflecting the flow rate of the fluid by measuring the difference of the forward flow and reverse flow propagation time speeds of ultrasonic signals in the fluid; the time difference method has small error influence caused by the change of the fluid temperature, has high accuracy and is widely applied.
At present, an upstream transducer and a downstream transducer of a gas meter are respectively clamped on a flow channel by using buckles, when the gas meter is installed, the two transducers are firstly placed in a fixed hole of an upper shell of the flow channel, and then the two transducers are respectively clamped in the clamping grooves of the upper shell of the flow channel.
SUMMERY OF THE UTILITY MODEL
A primary object of the utility model is to provide a transducer fixed knot constructs and gas table aims at avoiding each transducer of transducer subassembly difference that causes of installing alone, guarantees the holistic uniformity of transducer subassembly to promote the accuracy of gas table measurement.
In order to achieve the above object, the utility model provides a transducer fixed knot constructs, include:
a first housing provided with a mounting hole;
a transducer assembly mounted in the mounting hole; and
and the pressing box is covered on the first shell and presses the transducer assembly.
Optionally, the transducer fixing structure further includes a second housing, and the first housing is clamped to the second housing.
Optionally, the second housing is provided with a gas measurement channel, and the transducer assembly comprises an upstream transducer located upstream of the gas measurement channel and a downstream transducer located downstream of the gas measurement channel;
the compression box has opposing first and second sides, the first side compressing the upstream transducer and the second side compressing the downstream transducer.
Optionally, the first side is provided with a first pressing oblique arm abutting against the top wall of the upstream transducer; and the second side edge is provided with a second pressing inclined arm which is abutted with the top wall of the downstream transducer.
Optionally, the first pressing oblique arm is arranged in parallel with the top wall of the upstream transducer, and a first included angle with an upward opening is formed between the first pressing oblique arm and the first side edge, where the first included angle is an acute angle;
the second pressing oblique arm and the top wall of the downstream transducer are arranged in parallel to form a second included angle with an upward opening between the second pressing oblique arm and the second side edge, the second included angle is an acute angle.
Optionally, the first housing is provided with a hook, a clamping groove matched with the clamping is formed in the position, corresponding to the hook, of the compression box, and the hook is clamped into the clamping groove so as to fix the compression box and the first housing in a clamping manner.
Optionally, a PCB circuit board is fixed in the compression box, and the PCB circuit board is electrically connected with the transducer assembly.
In order to achieve the above object, the utility model also provides a gas meter, including the watchcase with set up in the watchcase as above transducer fixed knot construct, transducer fixed knot constructs including:
a first housing provided with a mounting hole;
a transducer assembly mounted in the mounting hole; and
and the pressing box is covered on the first shell and presses the transducer assembly.
Optionally, the gas meter further comprises a third shell, the third shell is fixedly connected with the second shell, the end portion of the second shell is an air inlet end communicated with the air inlet, and the end portion of the third shell is an air outlet end communicated with the air outlet.
Optionally, the second housing and the third housing are integrally arranged in an L shape.
In the technical scheme of the utility model, the transducer fixing structure comprises a first shell, a transducer assembly and a compression box; the first shell is provided with a mounting hole; the transducer assembly is arranged in the mounting hole; the pressing box cover is arranged on the first shell and presses the transducer assembly. Therefore, the difference caused by independent installation of each transducer of the transducer assembly is avoided, the integral consistency of the transducer assembly is ensured, and the metering accuracy of the gas meter is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a cross-sectional view of an embodiment of the transducer fixing structure of the present invention;
FIG. 2 is a side view of an embodiment of the transducer mounting structure of the present invention;
fig. 3 is a cross-sectional view of an embodiment of the gas meter of the present invention.
The reference numbers illustrate:
10. a first housing; 20. a transducer assembly; 30. a compacting box; 40. a second housing; 10a, mounting holes; 40a, a gas measurement channel; 31. a first side edge; 32. a second side edge; 311. a first pressing inclined arm; 321. a second pressing inclined arm; 11. a hook is clamped; 30a, a card slot; 50. a watch case; 100a and an air outlet; 100b, an air inlet; 60. and a third housing.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a transducer fixed knot constructs is applicable to the gas table, especially ultrasonic wave gas table, and here is unlimited.
Referring to fig. 1 and 2, in an embodiment of the present invention, the transducer fixing structure includes a first housing 10, a transducer assembly 20, and a compression box 30; the first housing 10 is provided with a mounting hole 10a; the transducer assembly 20 is mounted in the mounting hole 10a; the compression box 30 is placed over the first housing 10 and compresses the transducer assembly 20.
In this embodiment, the transducer assembly 20 may include an upstream transducer and a downstream transducer, without limitation.
In this embodiment, the first housing 10 is a mounting seat of the transducer assembly 20, the number of the mounting holes 10a may be two, and the two mounting holes 10a respectively fix the upstream transducer and the downstream transducer. The first housing 10 is fixed on the gas meter flow channel, and the first housing 10 may be assembled by one, two or more parts, and the material of the first housing may be plastic, metal or a combination thereof, which is not limited herein.
In this embodiment, the compressing box 30 may be square or cylindrical, and may be a mounting box for a PCB, a box for mounting other components, or a box for compressing only the upstream transducer and the downstream transducer, which is not limited herein.
In the technical solution of the present invention, the transducer fixing structure includes a first housing 10, a transducer assembly 20 and a compression box 30; the first housing 10 is provided with a mounting hole 10a; the transducer assembly 20 is mounted in the mounting hole 10a; the compression box 30 is placed over the first housing 10 and compresses the transducer assembly 20. Therefore, the difference caused by independent installation of each transducer of the transducer assembly 20 is avoided, the integral consistency of the transducer assembly 20 is ensured, and the metering accuracy of the gas meter is improved.
Referring to fig. 1 and fig. 2, in an embodiment, the transducer fixing structure may further include a second casing 40, the first casing 10 is clamped on the second casing 40, the second casing 40 is provided with a gas measuring channel 40a, and the transducer assembly 20 includes an upstream transducer located upstream of the gas measuring channel 40a and a downstream transducer located downstream of the gas measuring channel 40 a; the compression box 30 has opposing first and second sides 31, 32, with the first side 31 compressing the upstream transducer and the second side 32 compressing the downstream transducer.
In this embodiment, the second housing 40 is a pipe formed with a gas measuring channel 40a, and may be integrally formed, or may be assembled by two or more parts, and the material of the second housing may also be plastic, metal or a combination thereof, which is not limited herein.
In this embodiment, the compression box 30 is a box with an opening, which covers the transducer assembly 20, and the bottom of the sides of the compression box 30 presses the top of the transducer.
Further, with reference to FIG. 1, the first side 31 may be provided with a first hold-down ramp 311 abutting the top wall of the upstream transducer; the second side edge 32 may be provided with a second hold-down ramp 321 abutting the top wall of the downstream transducer.
In this embodiment, the first oblique pressing arm 311 is disposed parallel to the top wall of the upstream transducer, and a first included angle with an upward opening is formed between the first oblique pressing arm 311 and the first side edge 31, where the first included angle is an acute angle. The second oblique pressing arm 321 is parallel to the top wall of the downstream transducer, and a second included angle with an upward opening is formed between the second oblique pressing arm 321 and the second side edge 32, and the second included angle is an acute angle. So, can further promote and compress tightly the effect, avoid the transducer to rock.
It will be appreciated that when the first included angle is equal to the second included angle, the mounting induced differences between the upstream transducer and the downstream transducer are minimized and the overall consistency of the transducer assembly 20 is optimized.
Referring to fig. 2, in an embodiment, the first housing 10 may be provided with a hook 11, a position of the pressing box 30 corresponding to the hook 11 may be provided with a clamping groove 30a adapted to be clamped, and the hook 11 is clamped into the clamping groove 30a to clamp and fix the pressing box 30 and the first housing 10, so as to improve the mounting stability of the pressing box 30 and thus the stability of the pressing transducer assembly 20.
In this embodiment, the hook 11 may include a plurality of sub hooks uniformly arranged along the height direction of the first housing 10 at intervals, so as to adjust the installation height of the pressing box 30, thereby implementing the pressure of the pressing box 30 pressing the transducer assembly 20, further improving the overall consistency of the transducer assembly 20, and improving the accuracy of metering.
In this embodiment, a PCB circuit board may be fixed in the compression box 30, and the PCB circuit board is electrically connected to the transducer assembly 20 to implement gas metering.
The utility model also provides a gas table, this gas table include transducer fixed knot structure, and this transducer fixed knot structure's concrete structure refers to above-mentioned embodiment, because the utility model provides a gas table includes all schemes of above-mentioned transducer fixed knot structure's all embodiments, consequently, at least have with the same technological effect of transducer fixed knot structure, the explanation differs here.
Referring to fig. 3, in an embodiment of the present invention, the gas meter includes a meter case 50, a transducer fixing structure disposed in the meter case 50, and a third housing 60; the gas meter further comprises a third shell 60, the third shell 60 is fixedly connected with the second shell 40, the end portion of the second shell 40 is an air inlet end communicated with the air inlet 100b, and the end portion of the third shell 60 is an air outlet end communicated with the air outlet 100 a.
Wherein the air outlet end of the third casing 60 can be fixed at the air outlet 100a of the watch case 50, and the air inlet end of the second casing 40 can be arranged in the inner cavity of the watch case 50 and indirectly communicated with the air inlet 100b through the inner cavity.
In this embodiment, the second housing 40 and the third housing 60 are integrally disposed in an L shape to stably guide the fluid to the gas outlet 100a of the gas meter and flow out.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (8)
1. A transducer holding structure, comprising:
a first housing provided with a mounting hole;
the first shell is clamped on the second shell, and the second shell is provided with a gas measurement channel;
a transducer assembly mounted in the mounting hole; the transducer assembly comprises an upstream transducer located upstream of the gas measurement channel and a downstream transducer located downstream of the gas measurement channel; and
the pressing box is covered on the first shell and presses the transducer assembly; the compression box has opposing first and second sides, the first side compressing the upstream transducer and the second side compressing the downstream transducer.
2. The transducer mounting structure of claim 1 wherein the first side edge is provided with a first hold-down ramp arm abutting the upstream transducer top wall; and the second side edge is provided with a second pressing inclined arm which is abutted with the top wall of the downstream transducer.
3. The transducer mounting structure of claim 2 wherein the first hold-down ramp is disposed parallel to the top wall of the upstream transducer and forms an upwardly open first angle with the first side edge, the first angle being an acute angle;
the second compresses tightly the communications array and the roof parallel arrangement of low reaches transducer the second compresses tightly the communications array and forms the second contained angle that the opening is up between the second side, the second contained angle is the acute angle.
4. The transducer fixing structure of claim 1, wherein the first housing is provided with a hook, a slot adapted to be engaged is provided at a position corresponding to the hook on the compression box, and the hook is engaged into the slot to fix the compression box to the first housing.
5. The transducer holding structure of claim 1, wherein a PCB circuit board is fixed within the compression box, the PCB circuit board being electrically connected to the transducer assembly.
6. A gas meter comprising a case and the transducer fixing structure according to any one of claims 1 to 5 provided in the case.
7. The gas meter of claim 6, wherein the meter housing defines a gas outlet and a gas inlet, the gas meter further comprises a third housing, the third housing is fixedly connected to the second housing, an end of the second housing is a gas inlet end communicated with the gas inlet, and an end of the third housing is a gas outlet end communicated with the gas outlet.
8. The gas meter of claim 7, wherein the second housing and the third housing are arranged in an L-shape as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220970002.3U CN217930415U (en) | 2022-04-25 | 2022-04-25 | Transducer fixed knot constructs and gas table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220970002.3U CN217930415U (en) | 2022-04-25 | 2022-04-25 | Transducer fixed knot constructs and gas table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217930415U true CN217930415U (en) | 2022-11-29 |
Family
ID=84176203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220970002.3U Active CN217930415U (en) | 2022-04-25 | 2022-04-25 | Transducer fixed knot constructs and gas table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217930415U (en) |
-
2022
- 2022-04-25 CN CN202220970002.3U patent/CN217930415U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102072751B (en) | Ultrasonic fluid-measuring structure and ultrasonic fluid-measuring apparatus | |
| US8978482B2 (en) | Partition plate securement for an ultrasonic flow meter | |
| JP5728657B2 (en) | Ultrasonic flow measurement unit | |
| JP2012103087A (en) | Ultrasonic flow measurement unit | |
| CN216246570U (en) | Flow channel core body for ultrasonic metering, flow channel structure and ultrasonic water meter | |
| WO2019232930A1 (en) | Combined temperature and pressure sensor | |
| CN217930415U (en) | Transducer fixed knot constructs and gas table | |
| EP2597432A1 (en) | Construction for mounting ultrasonic transducer and ultrasonic flow meter using same | |
| KR20050114703A (en) | Flow rate-measuring device | |
| JP5277911B2 (en) | Fluid flow measuring device | |
| CN217504887U (en) | Ultrasonic water meter pipeline and ultrasonic water meter | |
| CN214748199U (en) | MEMS ultrasonic flowmeter | |
| KR102614417B1 (en) | Straight type flow sensor | |
| CN210123294U (en) | Ultrasonic flowmeter | |
| CN207585681U (en) | The metering die set of electronic type gauge table and electronic type gauge table | |
| CN217424470U (en) | Measuring flow channel and gas meter | |
| JP7203302B2 (en) | ultrasonic flow meter | |
| EP0095516B1 (en) | Detection arrangement suitable for detecting the intake air flow rate in an internal combustion engine | |
| CN217738363U (en) | Ultrasonic water meter pipe section and ultrasonic water meter comprising same | |
| CN217403534U (en) | Measuring flow channel and gas meter | |
| CN216050084U (en) | Ultrasonic measurement module and ultrasonic measurement meter | |
| JP2009198243A (en) | Flow meter | |
| CN217738361U (en) | Plastic shell ultrasonic water meter pipe section and ultrasonic water meter comprising same | |
| CN212674224U (en) | NB-IOT positive displacement water meter | |
| CN108051040B (en) | Metering module assembly of electronic meter and electronic meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Yangwen Inventor after: Chen Yiheng Inventor before: Chen Yangwen |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 3rd Floor, Building 6, Guangqian Industrial Zone, Longzhu 3rd Road, Longzhu 3rd Road, Longguang Community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Province, 518000 Patentee after: SHENZHEN FRIENDCOM TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 518052 6th floor, building 17, Guangqian Industrial Zone, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee before: SHENZHEN FRIENDCOM TECHNOLOGY DEVELOPMENT Co.,Ltd. |