CN210180471U - Connecting piece for checking instrument - Google Patents
Connecting piece for checking instrument Download PDFInfo
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- CN210180471U CN210180471U CN201921214019.0U CN201921214019U CN210180471U CN 210180471 U CN210180471 U CN 210180471U CN 201921214019 U CN201921214019 U CN 201921214019U CN 210180471 U CN210180471 U CN 210180471U
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Abstract
The utility model discloses a connecting piece for instrument calibration, which comprises a flange body and a flange neck coaxially arranged with the flange body, wherein the flange neck is used for connecting the flange body and a detection platform; a circular through hole is formed in the coaxial center of the flange body and the flange neck and is used for being connected with a detection port of a checked instrument; a microgroove line is turned around the circular through hole on the flange body and used for strengthening the sealing between the verified instrument and the flange body; the periphery of the dense grain waterline on the flange body is provided with a long waist-shaped hole for fixing a checked instrument. This connecting piece for instrument check-up can be fixed to detecting the platform with the on-the-spot instrument of being the check-up instrument of multiple different specifications, and need not change mounting flange, has reduced mounting flange's dismouting process, has reduced work load, improves instrument check-up efficiency.
Description
Technical Field
The utility model relates to an instrument calibration technical field, more specifically relates to a connecting piece is used in calibration.
Background
When various field instruments are verified, the field instruments are required to be fixed on a detection table, and the instruments are required to be fixed on the detection table by using corresponding fixing flanges due to the fact that the verified instruments have various different specifications; in the calibration of a professional instrument detection mechanism, hundreds of instruments need to be calibrated every day, appropriate fixing flanges are required to be replaced for instruments of different specifications, time and labor are wasted when the fixing flanges are replaced, the replacement amount every day is large, and the calibration efficiency is seriously influenced.
Flanges, also called flange flanges or beads, are parts of the interconnection between pipes for the connection between the ends of the pipes. The flange connection or flange joint is a detachable connection which is formed by connecting a flange, a gasket and a bolt with each other to form a group of combined sealing structures. The flanges are provided with long waist-shaped holes, the bolts tightly connect the two flanges through the long waist-shaped holes, and the two flanges are sealed by gaskets. The mounting flange is a flange for mounting one end to a piece of equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a connecting piece is used in instrument check-up, this connecting piece is used in instrument check-up can be fixed the site instrument of multiple different specifications to detecting the bench, and need not change mounting flange, and work load when reducing the site instrument check-up improves check-up efficiency.
In order to solve the technical problem, the utility model adopts the following technical scheme: a connecting piece for instrument calibration comprises a flange body and a flange neck coaxially arranged with the flange body, wherein the flange neck is used for connecting the flange body and a detection table; a circular through hole is formed in the coaxial center of the flange body and the flange neck and is used for being connected with a detection port of a checked instrument; a microgroove line is turned around the circular through hole on the flange body and used for strengthening the sealing between the verified instrument and the flange body; the periphery of the dense grain waterline on the flange body is provided with a long waist-shaped hole for fixing a checked instrument.
Preferably, long waist shape hole by be close to the first semicircle post at the center of flange body, be close to the second semicircle post and the connection at the outer border of flange body the cuboid of first semicircle post and second semicircle post is constituteed, the diameter of first semicircle post and second semicircle post with the width of cuboid is the same.
Preferably, the distance between the center of the first semi-cylinder and the center of the flange body is 20mm, and the distance between the center of the second semi-cylinder and the center of the flange body is 200 mm.
Preferably, the number of the long kidney-shaped holes is 8, and the long kidney-shaped holes are arranged along the center of the flange body at 45 degrees.
Preferably, the flange neck is threaded on the outside to threadably engage the test stand.
Preferably, the aperture of the circular through hole is phi 10 mm.
Compared with the prior art, the utility model provides a pair of connecting piece is used in instrument check-up has following advantage: the device can fix the checked instruments with different specifications, namely field instruments, on the detection table without replacing the fixed flange, thereby reducing the disassembly and assembly processes of the fixed flange, reducing the workload and improving the instrument checking efficiency; when the connecting piece for the instrument calibration is used for the detection table, a plurality of original fixing flanges can be replaced, and the investment cost and the maintenance cost of the detection table are reduced.
Drawings
Fig. 1 is the utility model provides a structural schematic of connecting piece for instrument calibration.
Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.
Reference numerals:
1-a flange body, 2-a flange neck,
3-round through holes, 4-microgroove lines,
5-long kidney-shaped hole, 51-first semi-cylinder,
52-second half cylinder, 53-cuboid.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like elements and techniques of the present invention so that advantages and features of the present invention may be more readily understood when implemented in a suitable environment. The following description is an embodiment of the present invention, and other embodiments related to the claims that are not explicitly described also fall within the scope of the claims.
In actual production, field instruments such as pressure gauges have different specifications and are classified into vacuum gauges, micro-pressure gauges, low-pressure gauges, medium-pressure gauges and high-pressure gauges according to the measurement range. The vacuum meter is used for measuring a pressure value smaller than atmospheric pressure; the micro-pressure meter is used for measuring a pressure value less than 60000 Pa; the low-pressure gauge is used for measuring pressure values of 0-6 MPa; the medium pressure gauge is used for measuring pressure values of 10-60 MPa and the like, the measuring ranges of the pressure gauges are different, the nominal diameters of corresponding flange plates provided with the pressure gauges are also different, the nominal diameters of the flange plates are phi 50mm, phi 60mm, phi 80mm, phi 100mm, phi 150mm, phi 200mm and the like, and the long waist-shaped holes in the flange plates are 4 holes and 8 holes.
The manometer needs the periodic check-up, and when the check-up, need fix the manometer to detecting the bench, specifically be through the bolt fastening with flange on the manometer and the mounting flange who detects the bench to the realization is fixed the manometer and is carried out the check-up on detecting the bench. Due to the fact that the specifications of the flange plates of different pressure gauges are different, when the pressure gauge with one specification is inspected, the proper fixing flange needs to be replaced, and therefore work load is large during verification, and verification efficiency is low.
The utility model provides a connecting piece is used in instrument check-up has the commonality, can be fixed with the ring flange of multiple different specifications to reduce mounting flange's when the check-up change, reduce work load, improve detection efficiency.
Fig. 1 shows a schematic structural diagram of a connecting piece for meter calibration provided by the present invention; fig. 2 shows a cross-sectional view along line a-a in fig. 1.
As shown in fig. 1 and 2, the connecting piece for meter calibration includes a flange body 1 and a flange neck 2 coaxially disposed with the flange body 1, wherein the flange neck 2 is used for connecting the flange body 1 and a detection platform.
A circular through hole 3 is formed in the coaxial centers of the flange body 1 and the flange neck 2 and is used for being connected with a detection port of a checked instrument; a microgroove line 4 is turned around the circular through hole 3 on the flange body 1 and used for strengthening the sealing between the verified instrument and the flange body 1; the periphery of the dense grain waterline 4 on the flange body 1 is provided with a long waist-shaped hole 5 for fixing a checked instrument.
The long waist shape hole 5 is by being close to first halfcylinder 51 at the center of flange body 1, being close to the second halfcylinder 52 and the connection at the outer border of flange body 1 the cuboid 53 of first halfcylinder 51 and second halfcylinder 52 constitutes, the diameter of first halfcylinder 51 and second halfcylinder 52 with the width of cuboid 53 is the same, is 20mm (use a long waist shape hole as an example in figure 1 and made concrete mark).
Specifically, the distance between the center O1 of the first semi-cylinder 51 and the center of the flange body 1 is 20mm, the distance between the center O2 of the second semi-cylinder 52 and the center of the flange body 1 is 200mm, and the long waist-shaped holes can ensure that the flange plate of the checked instrument with the nominal diameter of phi 50-200 mm can be fixed.
The number of the long kidney-shaped holes 5 is 8, and the long kidney-shaped holes are arranged along the center of the flange body 1 by 45 degrees. The arrangement of 45 degrees along the center of the flange body 1 means that the center line of the long waist-shaped hole 5 passes through the center of the flange body 1, the included angle of the center lines of two adjacent long waist-shaped holes 5 is 45 degrees, the arrangement ensures the universality of the fixing flange, and the fixing flange can be fixed with flange plates of 4 holes and also can be fixed with flange plates of 8 holes.
The flange neck 2 is threaded on the outside for threaded connection with a test stand.
The utility model provides an among the connecting piece is used in the instrument check-up, flange neck 2 and 1 accessible welding of flange body or other modes are even as a whole, also can be when the shaping direct pouring be a whole.
The aperture of the circular through hole is phi 10mm so as to be consistent with the detection port of the checked instrument.
When the flange neck checking tool is used, the flange neck 2 with the external threads is firstly used for connecting a checking platform, then the center of a checked instrument is aligned to the circular through hole 3 and placed at the center of the flange body 1 for being connected with a detection port of the checked instrument, then the checked instrument is fixed by bolts through 8 long waist-shaped holes 5 which are arranged along the center of the flange body 1 by 45 degrees, and finally the checking is carried out by pressing.
The utility model provides a pair of connecting piece is used in instrument check-up has following advantage: the device can fix the checked instruments with different specifications, namely field instruments, on the detection table without replacing the fixed flange, thereby reducing the disassembly and assembly processes of the fixed flange, reducing the workload and improving the instrument checking efficiency; when the connecting piece for the instrument calibration is used for the detection table, a plurality of original fixing flanges can be replaced, and the investment cost and the maintenance cost of the detection table are reduced.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Claims (6)
1. The connecting piece for the instrument calibration is characterized by comprising a flange body (1) and a flange neck (2) which is coaxial with the flange body (1), wherein the flange neck (2) is used for connecting the flange body (1) with a detection table;
a circular through hole (3) is formed in the coaxial centers of the flange body (1) and the flange neck (2) and is used for being connected with a detection port of a checked instrument; a microgroove line (4) is turned around the circular through hole (3) on the flange body (1) and used for strengthening the sealing between the verified instrument and the flange body (1); the periphery of the dense grain waterline (4) on the flange body (1) is provided with a long waist-shaped hole (5) for fixing a checked instrument.
2. The connecting piece for meter verification according to claim 1, wherein the oblong hole (5) is composed of a first semi-cylinder (51) near the center of the flange body (1), a second semi-cylinder (52) near the outer edge of the flange body (1), and a cuboid (53) connecting the first semi-cylinder (51) and the second semi-cylinder (52), and the diameters of the first semi-cylinder (51) and the second semi-cylinder (52) are the same as the width of the cuboid (53).
3. The instrument calibration connecting member as set forth in claim 2, wherein the center of the first semi-cylinder (51) is spaced from the center of the flange body (1) by 20mm, and the center of the second semi-cylinder (52) is spaced from the center of the flange body (1) by 200 mm.
4. A meter-check connection according to claim 2, characterized in that the number of oblong holes is 8, arranged 45 ° along the center of the flange body (1).
5. A meter-check connector according to claim 1, characterized in that the flange neck (2) is threaded on its outside for threaded connection to a test stand.
6. A connector for meter verification according to claim 1, wherein the aperture of the circular through hole (3) is Φ 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921214019.0U CN210180471U (en) | 2019-07-30 | 2019-07-30 | Connecting piece for checking instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921214019.0U CN210180471U (en) | 2019-07-30 | 2019-07-30 | Connecting piece for checking instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210180471U true CN210180471U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921214019.0U Active CN210180471U (en) | 2019-07-30 | 2019-07-30 | Connecting piece for checking instrument |
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| CN (1) | CN210180471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061830A (en) * | 2021-10-18 | 2022-02-18 | 中国神华煤制油化工有限公司 | Instrument check joint and pressure check platform |
-
2019
- 2019-07-30 CN CN201921214019.0U patent/CN210180471U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061830A (en) * | 2021-10-18 | 2022-02-18 | 中国神华煤制油化工有限公司 | Instrument check joint and pressure check platform |
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