CN216621040U - Pneumatic measuring instrument measuring head and pneumatic measuring instrument - Google Patents
Pneumatic measuring instrument measuring head and pneumatic measuring instrument Download PDFInfo
- Publication number
- CN216621040U CN216621040U CN202122356865.XU CN202122356865U CN216621040U CN 216621040 U CN216621040 U CN 216621040U CN 202122356865 U CN202122356865 U CN 202122356865U CN 216621040 U CN216621040 U CN 216621040U
- Authority
- CN
- China
- Prior art keywords
- pipe sleeve
- air
- axis
- pneumatic
- pipe
- 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 Arrangements Characterized By The Use Of Fluids (AREA)
Abstract
The utility model provides a pneumatic measuring instrument measuring head and a pneumatic measuring instrument, wherein the pneumatic measuring instrument measuring head comprises: the pipe sleeve is provided with a through hole for accommodating a pipe, the outer wall of the pipe sleeve is provided with an air inlet, and the inner wall of the pipe sleeve is also provided with four air outlet holes; the four air inlet holes and the four air outlet holes are positioned on the same cross section vertical to the axis of the pipe sleeve, and the four air outlet holes are uniformly distributed on the cross section. According to the utility model, the four air outlets are uniformly distributed on the section vertical to the axis of the pipe sleeve, so that the average outer diameter of the section of the pipe can be obtained, the measured size is stable, and the accuracy of measuring the outer diameter of the pipe is effectively improved.
Description
Technical Field
The utility model relates to the technical field of pneumatic measuring instruments, in particular to a measuring head of a pneumatic measuring instrument and the pneumatic measuring instrument.
Background
At present, the technical devices or means for measuring the outer diameter of the pipe include a micrometer, a pneumatic measuring instrument, ultrasonic waves and the like. The air gauge is widely used due to the advantages of high measuring precision and accuracy, low cost, easy operation and the like. And the measuring ring gauge is rotated to complete the measurement of the section by 360 degrees, and the maximum and minimum values of the outer diameter of the section are obtained.
However, the conventional measuring device has a large fluctuation in measurement results.
SUMMERY OF THE UTILITY MODEL
Objects of the first utility model
The utility model aims to provide an air gauge measuring head and an air gauge, which can obtain an average outer diameter size.
(II) technical scheme
To solve the above problem, a first aspect of embodiments of the present invention provides an air gauge probe including: the pipe sleeve is provided with a through hole for accommodating a pipe, the outer wall of the pipe sleeve is provided with an air inlet, and the inner wall of the pipe sleeve is also provided with four air outlet holes; the four air inlet holes and the four air outlet holes are positioned on the same cross section vertical to the axis of the pipe sleeve, and the four air outlet holes are uniformly distributed on the cross section.
Further, comprising: the axes of the four air outlet holes are intersected with the axis of the pipe sleeve, and the included angle formed by the axes of the adjacent air outlet holes is 90 degrees.
Further, still include: and the airflow channel is used for connecting the air outlet hole and the air inlet hole and is arranged around the axis of the pipe sleeve.
Furthermore, the cross section of the air flow channel, which is vertical to the axis of the pipe sleeve, is circular, and the middle point of the circular air flow channel is positioned on the axis of the pipe sleeve.
Further, the air flow channels are square in cross section perpendicular to the axis of the shroud, and the midpoint of the square air flow channels is located on the axis of the shroud.
A second aspect of an embodiment of the present invention provides a pneumatic gauge including: a first aspect of an embodiment of the utility model provides an air gauge probe according to any of the preceding claims.
(III) advantageous effects
The technical scheme of the utility model has the following beneficial technical effects:
through the four air outlets, the average outer diameter of the section of the pipe can be obtained through the uniform distribution on the section perpendicular to the axis of the pipe sleeve, so that the measured size is stable, and the accuracy of measuring the outer diameter of the pipe is effectively improved.
Drawings
Fig. 1 is a schematic structural view of a probe of a pneumatic gauge according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a pneumatic gauge head according to an embodiment of the present invention.
Reference numerals:
1: an air inlet; 2: an air outlet; 3: an air flow channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the drawings, there is shown a schematic structural diagram according to an embodiment of the utility model. The figures are not drawn to scale, wherein certain details are omitted for clarity. The various shapes shown in the drawings, and the relative sizes and positional relationships therebetween, are merely exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations.
It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The utility model will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not drawn to scale.
In a first embodiment of the present invention, as shown in fig. 1, a probe of an air-gauge is provided, which mainly includes a pipe sleeve, the pipe sleeve has a through hole for receiving a pipe, an air inlet hole 1 is disposed on an outer wall of the pipe sleeve, and four air outlet holes 2 are further disposed on an inner wall of the pipe sleeve; the four air inlet holes 1 and the four air outlet holes 2 are positioned on the same cross section vertical to the axis of the pipe sleeve, and the four air outlet holes 2 are uniformly distributed on the cross section.
Specifically, the pneumatic measuring instrument measuring head is divided into two parts of a ring gauge and an airflow passage, the air inlet 1 is formed in the outer wall of the ring gauge for annular measurement, the four air outlet holes 2 are uniformly distributed on the inner wall of the ring gauge for annular measurement, the average value of the outer diameter size of the same section can be obtained, and the pneumatic measuring instrument for measuring the outer diameter of the ring gauge can obtain an accurate measuring value when the outer diameter of a pipe is measured.
In this embodiment, through the evenly distributed on the cross-section of perpendicular pipe box axis through four ventholes 2, can acquire the average external diameter size of tubular product cross-section, make the size that obtains of measuring more stable, effectively improve the accuracy of tubular product external diameter size measurement.
In some embodiments, the axes of four air outlet holes 2 intersect with the axis of the pipe sleeve, and the included angle formed by the axes of the adjacent air outlet holes 2 is 90 °.
Specifically, through evenly arranging, four ventholes 2 aim at the outer wall of waiting to survey the pipe from four directions that the contained angle is 90, can obtain the size numerical value of more accurate tubular product external diameter.
In some embodiments, the air gauge head further comprises an air flow channel 3, the air flow channel 3 is used for connecting the air outlet hole 2 and the air inlet hole 1, and the air flow channel 3 is arranged around the axis of the pipe sleeve.
Specifically, holes are formed at preset positions through a punching tool, and air leakage positions are blocked after the holes are opened, so that the air flow channels 3 are formed.
In some embodiments, the gas flow channel 3 is circular in cross section perpendicular to the axis of the pipe sleeve, and the midpoint of the circular gas flow channel 3 is located on the axis of the pipe sleeve.
In some embodiments, as shown in figure 2, the gas flow channels 3 are square in cross-section perpendicular to the axis of the shroud, the midpoint of the square gas flow channels 3 being located on the axis of the shroud.
Specifically, the air outlet 2 is positioned at the middle point of the side length of the square.
In a second embodiment of the present invention, a pneumatic measuring instrument is provided, which mainly includes: the air gauge probe of any one of the first novel embodiments of the present invention.
Specifically, the measuring head of the pneumatic measuring instrument is connected with the main body of the pneumatic measuring instrument through an air nozzle and a rubber hose.
In one specific embodiment, the operation of measuring the outer diameter of the pipe comprises:
1. using an upper limit and a lower limit calibration plug gauge to calibrate the measurement range and the zero position of the outer diameter measurement ring gauge;
2. horizontally placing the pipe to be measured, slowly sleeving a ring gauge into the pipe, and rotating the ring gauge to finish the measurement of the outer diameter size;
3. reading the outer diameter of the measured pipe from the pneumatic measuring instrument;
4. replacing one measuring section and repeating the steps 2 and 3.
In another specific embodiment, a tube with the specification of phi 13.090mm multiplied by 0.4mm is measured, a float type air gauge with the magnification of 2000 times is used, the steps are implemented, the outer diameter size of the tube is read from the air gauge to be phi 13.090mm, the outer diameter size of the tube is read to be phi 13.088mm by replacing the cross section measurement, and the outer diameter size of the tube is read to be phi 13.091mm by continuously replacing the cross section measurement.
The technical scheme of the utility model has the following beneficial technical effects:
through the even distribution of four ventholes 2 on the cross-section of perpendicular pipe box axis, can acquire the average external diameter size of tubular product cross-section, make the size that obtains of measuring more stable, effectively improve the degree of accuracy of tubular product external diameter size measurement.
The utility model has been described above with reference to embodiments thereof. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the utility model, and these alternatives and modifications are intended to be within the scope of the utility model.
Claims (6)
1. A pneumatic gauge head, comprising:
the pipe sleeve is provided with a through hole for accommodating a pipe, the outer wall of the pipe sleeve is provided with an air inlet hole (1), and the inner wall of the pipe sleeve is also provided with four air outlet holes (2);
the four air inlet holes (1) and the four air outlet holes (2) are positioned on the same cross section vertical to the axis of the pipe sleeve, and the four air outlet holes (2) are uniformly distributed on the cross section.
2. A pneumatic gauge head according to claim 1, comprising:
the axes of the four air outlet holes (2) are intersected with the axis of the pipe sleeve, and the included angle formed by the axes of the adjacent air outlet holes (2) is 90 degrees.
3. The air gauge head according to claim 1, further comprising:
and the air flow channel (3) is used for connecting the air outlet hole (2) and the air inlet hole (1), and the air flow channel (3) is arranged around the axis of the pipe sleeve.
4. A pneumatic gauge head according to claim 3,
the cross section of the air flow channel (3) vertical to the axis of the pipe sleeve is circular, and the middle point of the circular air flow channel (3) is positioned on the axis of the pipe sleeve.
5. A pneumatic gauge head according to claim 3,
the air flow channel (3) is square on a section perpendicular to the axis of the pipe sleeve, and the midpoint of the square air flow channel (3) is positioned on the axis of the pipe sleeve.
6. A pneumatic instrument, comprising:
an air gauge probe according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122356865.XU CN216621040U (en) | 2021-09-27 | 2021-09-27 | Pneumatic measuring instrument measuring head and pneumatic measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122356865.XU CN216621040U (en) | 2021-09-27 | 2021-09-27 | Pneumatic measuring instrument measuring head and pneumatic measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216621040U true CN216621040U (en) | 2022-05-27 |
Family
ID=81692437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122356865.XU Active CN216621040U (en) | 2021-09-27 | 2021-09-27 | Pneumatic measuring instrument measuring head and pneumatic measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216621040U (en) |
-
2021
- 2021-09-27 CN CN202122356865.XU patent/CN216621040U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11422057B2 (en) | Dynamic five-hole probe | |
| JP4991836B2 (en) | Fluid flow meter and fluid mixer | |
| CN104101457B (en) | Dynamic total pressure probe | |
| CN104848810B (en) | Symmetrical expression ball-and-socket sphere diameter pneumoelectric measuring instrument | |
| CN107782495B (en) | A kind of static probe calibration supersonic speed exerciser | |
| CN216621040U (en) | Pneumatic measuring instrument measuring head and pneumatic measuring instrument | |
| CN102590557A (en) | Variable-diameter negative pressure type breeze speed calibration device | |
| CN115435930A (en) | Three-dimensional full-parameter high-frequency probe for measuring interstage | |
| CN111397678A (en) | Multistage rectification MEMS gas flowmeter | |
| CN210165914U (en) | Porous pneumatic measuring instrument inner diameter measuring head and pneumatic measuring instrument | |
| CN213957614U (en) | Curved surface step test block for ultrasonic thickness measurement of small-diameter pipe | |
| CN210834953U (en) | Pitot tube sensor for variable air volume valve | |
| CN104101387B (en) | The adaptive flute type manage-style flowmeter of adjustable type | |
| CN110514154B (en) | Pneumatic measuring device for taper hole and method for measuring taper hole by using same | |
| CN104076166A (en) | Re-improved L-shaped pitot tube for measuring flow velocity of fluid | |
| CN113899523A (en) | Electronic scanning valve protection device | |
| CN211639882U (en) | Quick shock resistance test equal division mark line scriber | |
| CN210533598U (en) | Total pressure probe self-adaptive to incoming flow direction | |
| CN113418495A (en) | Method for measuring coaxiality of wind tunnel spray pipe | |
| CN210198640U (en) | Test tool for high-precision transmitter | |
| CN218822920U (en) | Device for measuring flow field of inlet and outlet of fan | |
| CN203535069U (en) | Combined pitot tube | |
| CN105953945A (en) | Sampling pipe used for measuring temperature of fluid medium in pipeline | |
| CN112816007A (en) | 6-rod 24-hole pitot tube measuring device | |
| CN207036008U (en) | A kind of conduit enlarging port wall thickness calliper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |