CN215931166U - Detection and calibration device of digital pressure gauge - Google Patents
Detection and calibration device of digital pressure gauge Download PDFInfo
- Publication number
- CN215931166U CN215931166U CN202121507343.9U CN202121507343U CN215931166U CN 215931166 U CN215931166 U CN 215931166U CN 202121507343 U CN202121507343 U CN 202121507343U CN 215931166 U CN215931166 U CN 215931166U
- Authority
- CN
- China
- Prior art keywords
- pressure gauge
- pressure
- gas pipeline
- sleeve
- digital pressure
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title abstract description 11
- 239000007789 gas Substances 0.000 claims description 34
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a detection and calibration device of a digital pressure gauge, which comprises: the gas pipeline, set up in the admission valve of gas pipeline one end and set up in the device of inflating at the gas pipeline other end, its characterized in that, the side of gas pipeline is provided with air outlet valve and a plurality of manometer installation interface, install at least one standard digital manometer and a plurality of digital pressure gauges that await measuring on the manometer installation interface, the device of inflating includes the sleeve, telescopic one end is linked together with gas pipeline, and the other end is provided with sealed apron, be provided with the piston in the sleeve, piston and telescopic inner wall clearance zonulae occludens, be provided with the push rod on the piston, the one end of push rod runs through sealed apron and is connected with the pull handle. The pressure gauge is simple in structure, convenient to carry and capable of conveniently detecting and calibrating the pressure gauge.
Description
Technical Field
The utility model relates to the technical field of pressure gauge calibration, in particular to a detection and calibration device of a digital pressure gauge.
Background
The pressure gauge is widely applied to the fields of meteorology, military affairs, aviation, navigation, agriculture, measurement, geology, industrial and mining enterprises, scientific research and the like, becomes a conventional instrument for measuring atmospheric pressure, and the existing calibration device of the pressure gauge has a complex structure and is inconvenient to operate.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a detection and calibration device of a digital pressure gauge, which has simple structure and convenient carrying and can conveniently detect and calibrate the pressure gauge.
In order to solve the technical problems, the utility model adopts a technical scheme that: a test calibration apparatus for a digital pressure gauge, comprising: the gas pipeline, set up in the admission valve of gas pipeline one end and set up in the device of inflating at the gas pipeline other end, the side of gas pipeline is provided with air outlet valve and a plurality of manometer installation interface, install at least one standard digital manometer and a plurality of digital pressure gauges that await measuring on the manometer installation interface, the device of inflating includes the sleeve, telescopic one end is linked together with the gas pipeline, and the other end is provided with sealed apron, be provided with the piston in the sleeve, piston and telescopic inner wall clearance zonulae occludens, be provided with the push rod on the piston, the one end of push rod runs through sealed apron and is connected with the pull handle.
In a preferred embodiment of the utility model, the pressure gauge mounting interfaces are three, the middle pressure gauge mounting interface is provided with a standard digital pressure gauge, the pressure gauge mounting interface on one side is provided with a first digital pressure gauge to be tested, and the pressure gauge mounting interface on the other side is provided with a second digital pressure gauge to be tested.
In a preferred embodiment of the present invention, the piston is made of rubber and is made of silica gel.
In a preferred embodiment of the utility model, the sealing cover plate is integrally formed with the other end of the sleeve.
In a preferred embodiment of the utility model, a pressure reducer is arranged on the gas transmission pipeline, and the pressure reducer is an oxygen pressure reducer or a nitrogen pressure reducer.
In a preferred embodiment of the utility model, the pressure reducer is located between the outlet valve and the pressure gauge mounting interface.
The utility model has the beneficial effects that: the utility model discloses a detection calibrating device of digital pressure gauge, simple structure, convenient to carry utilize piston push-and-pull motion to be full of gas back to gas transmission pipeline, can all can realize detection and the calibration work of pressure gauge under the condition of no external air supply, convenient operation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic diagram of a calibration device for digital pressure gauges according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the 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.
Referring to fig. 1, the present invention provides a calibration apparatus for digital pressure gauge, including: the gas pipeline comprises a gas pipeline 1, a gas inlet valve 2 arranged at one end of the gas pipeline and a gas inflating device 3 arranged at the other end of the gas pipeline, wherein the gas inlet valve is a single valve, a gas outlet valve 4 and a plurality of pressure gauge mounting interfaces are arranged on the side surface of the gas pipeline, at least one standard digital pressure gauge 5 and a plurality of digital pressure gauges 6 to be tested are mounted on the pressure gauge mounting interfaces, the gas inflating device comprises a sleeve 7, one end of the sleeve is communicated with the gas pipeline, a sealing cover plate 8 is arranged at the other end of the sleeve, the sealing cover plate and the sleeve are integrally formed, a piston 9 is arranged in the sleeve, the piston is tightly connected with the gap of the inner wall of the sleeve, a push rod 10 is arranged on the piston, one end of the push rod penetrates through the sealing cover plate and is connected with a pull handle 11, under the condition that no external origin exists, the gas inlet valve and the gas outlet valve are closed during operation, and the piston is driven to move back and forth by pushing the pull handle, and inflating the sleeve, filling the air pressure in the gas pipeline for a period of time, maintaining the pressure, and checking whether the difference between the digital pressure gauge to be detected and the standard digital pressure gauge is within a qualified range, so that the calibration work of the digital pressure gauge is completed.
In one embodiment, the pressure gauge mounting interfaces are provided with three pressure gauge mounting interfaces, the middle pressure gauge mounting interface is provided with a standard digital pressure gauge, the pressure gauge mounting interface at one side is provided with a first digital pressure gauge to be tested, the pressure gauge mounting interface at the other side is provided with a second digital pressure gauge to be tested, can be provided with a plurality of pressure gauge mounting interfaces according to requirements, can simultaneously detect a plurality of digital pressure gauges to be detected, and in addition, the detection and calibration device of the utility model, under the condition of conditional access to an external air source, the piston is pushed manually or by means of external equipment to plug the connecting port of the sleeve and the air transmission pipeline to prevent air leakage, then the air source is accessed from the air inlet valve, the air pressure in the air transmission pipeline is full of air and is maintained for a period of time, the difference between the digital pressure gauge to be detected and the standard digital pressure gauge is checked, and the checking work of the digital pressure gauge can be rapidly completed.
Specifically, the piston is the silica gel material for rubber, be provided with pressure reducer 12 on the gas transmission pipeline, the pressure reducer is oxygen pressure reducer or nitrogen gas pressure reducer, the pressure reducer is located between gas outlet valve and the manometer installation interface.
The detection and calibration device of the digital pressure gauge has the advantages that: the utility model discloses a detection calibrating device of digital pressure gauge, simple structure, convenient to carry utilize piston push-and-pull motion to be full of gas back to gas transmission pipeline, can all can realize detection and the calibration work of pressure gauge under the condition of no external air supply, convenient operation.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A test calibration apparatus for a digital pressure gauge, comprising: the gas pipeline, an air inlet valve arranged at one end of the gas pipeline and a gas inflating device arranged at the other end of the gas pipeline are characterized in that an air outlet valve and a plurality of pressure meter mounting interfaces are arranged on the side surface of the gas pipeline, at least one standard digital pressure meter and a plurality of digital pressure meters to be tested are mounted on the pressure meter mounting interfaces, the gas inflating device comprises a sleeve, one end of the sleeve is communicated with the gas pipeline, a sealing cover plate is arranged at the other end of the sleeve, a piston is arranged in the sleeve and is tightly connected with the inner wall clearance of the sleeve, a push rod is arranged on the piston, one end of the push rod penetrates through the sealing cover plate and is connected with a pull handle, the number of the pressure meter mounting interfaces is three, the standard digital pressure meters are mounted on the middle pressure meter mounting interface, and a first digital pressure meter to be tested is mounted on one pressure meter mounting interface, and a second digital pressure gauge to be tested is arranged on the pressure gauge mounting interface on the other side.
2. The apparatus of claim 1, wherein the piston is made of rubber and is made of silicone.
3. The calibrating apparatus for digital pressure gauges according to claim 1, wherein the sealing cover is integrally formed with the other end of the sleeve.
4. The device for detecting and calibrating the digital pressure gauge according to claim 1, wherein a pressure reducer is arranged on the gas transmission pipeline, and the pressure reducer is an oxygen pressure reducer or a nitrogen pressure reducer.
5. The apparatus of claim 4, wherein the pressure reducer is located between the outlet valve and the pressure gauge mounting port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121507343.9U CN215931166U (en) | 2021-07-05 | 2021-07-05 | Detection and calibration device of digital pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121507343.9U CN215931166U (en) | 2021-07-05 | 2021-07-05 | Detection and calibration device of digital pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215931166U true CN215931166U (en) | 2022-03-01 |
Family
ID=80400448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121507343.9U Expired - Fee Related CN215931166U (en) | 2021-07-05 | 2021-07-05 | Detection and calibration device of digital pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215931166U (en) |
-
2021
- 2021-07-05 CN CN202121507343.9U patent/CN215931166U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220301 |
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| CF01 | Termination of patent right due to non-payment of annual fee |