CN206002248U - A kind of 0.04MPa to 0.25MPa pressure gauge assay device - Google Patents
A kind of 0.04MPa to 0.25MPa pressure gauge assay device Download PDFInfo
- Publication number
- CN206002248U CN206002248U CN201620748286.6U CN201620748286U CN206002248U CN 206002248 U CN206002248 U CN 206002248U CN 201620748286 U CN201620748286 U CN 201620748286U CN 206002248 U CN206002248 U CN 206002248U
- Authority
- CN
- China
- Prior art keywords
- trachea
- testing equipment
- relief valve
- piston
- screw rod
- 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
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
This utility model discloses a kind of 0.04MPa to 0.25MPa pressure gauge assay device, including the first testing equipment and the second testing equipment, described first testing equipment includes compressed air bottle, compressed air bottle seam is provided with the first air relief valve, first air relief valve is provided with descending trachea, it is connected with cross valve on the descending trachea of the first air relief valve, first trachea is connected respectively on cross valve, second trachea and the 3rd trachea, first trachea connects and folding can close gas circuit, the second air relief valve can be provided between folding closure gas circuit and the first trachea, second trachea connection standard table, 3rd trachea connects detected table；First testing equipment is connected with the second testing equipment.This utility model passes through both the first testing equipment and the second testing equipment combine, it is capable of range is examined and determine in the flexible member formula general purpose pressure gauge of (0.04～0.25MPa), this device is inexpensive, it is 1/10th of common calibration equipment cost, be suitable to the First Astronautic Research Institute for Measurement and Test at county level of financial strain and enterprise adopts.
Description
Technical field
This utility model is related to a kind of assay device and in particular to the calibrating of one kind -0.04MPa to 0.25MPa pressure gauge fills
Put.
Background technology
Calibrating flexible member formula general purpose pressure gauge vertification regulation is JJG52-2013, one of outstanding feature of code：Code
The manometric working media that working media used by the calibrating of 7.1.4 regulation measures the upper limit no more than 0.25MPa is the sky of cleaning
Gas or nontoxic, harmless and stable chemical performance gas.The standard that the calibrating of our calibration authorities uses is piston-type pressure
Meter or other standard, the unit ratio using piston gage is more.Piston-type pressure is in respect of the natural deficiency on range.
Such as Luan County First Astronautic Research Institute for Measurement and Test pressure gauge assay device is (0.05 grade) standard piston gage (Tianjin pilot plant of Bureau of Technical Supervision
Produce).Its range is JS2010 (0.04～1) MPa, JS2600 (1～60) MPa, JS2060 (0.1～6) MPa respectively, it
Calibrating medium be oil.JJG52-2013 regulatory requirements can not be met and measure the manometric work that the upper limit is not more than 0.25MPa
As medium be cleaning air or nontoxic, harmless and stable chemical performance gas requirement.
Utility model content
The purpose of this utility model is to provide a kind of simple operation, -0.04MPa to the 0.25MPa pressure of low cost of manufacture
Power table assay device.
For achieving the above object, this utility model provides following technical scheme：
One kind -0.04MPa to 0.25MPa pressure gauge assay device, including the first testing equipment and the second testing equipment, institute
State the first testing equipment and include compressed air bottle, compressed air bottle seam is provided with the first air relief valve, the first air relief valve is provided with
Descending trachea, the descending trachea of the first air relief valve is connected with cross valve, and cross valve connects the first trachea, the second trachea respectively
And the 3rd trachea, the first trachea connect can folding closure gas circuit, second can be provided between folding closure gas circuit and the first trachea
Air relief valve, the second trachea connection standard table, the 3rd trachea connects detected table；First testing equipment and the second testing equipment are even
Connect, the second testing equipment includes piston cylinder, the inside of piston cylinder is provided with piston, and piston is connected with screw rod, in the side of piston cylinder
On be fixedly installed with screw rod cooperation nut, screw rod pass through nut inside, the end of screw rod is provided with crank；Described piston
Form air chamber with piston cylinder, air chamber is by gas circuit connection standard table and detected table respectively.
As the improvement further of above-mentioned technology, the screw rod of described upper piston area is provided with the list fixing with screw position phase
To valve.
Compared with prior art, this utility model passes through both the first testing equipment and the second testing equipment combine,
It is capable of range is examined and determine in the flexible member formula general purpose pressure gauge of (- 0.04～0.25MPa), this assay device thing is beautiful
Inexpensive, it is 1/10th of common calibration equipment cost, be fully compatible for the First Astronautic Research Institute for Measurement and Test at county level of financial strain and enterprise adopts, and
Equipment is simply easily made, principle is simple, and improvement expenses and technology are cheap, is suitable for promoting and using it is easy to regular maintenance.
Brief description
Fig. 1 is the structural representation of the first testing equipment；
Fig. 2 is the structural representation of the second testing equipment.
In figure：1- first air relief valve, 2- compressed air bottle, 3- are detected table, 4- standard scale, 5- second air relief valve, 6- can
Folding closure gas circuit, 7- piston, 8- check valve, 9- screw rod, 10- nut, 11- crank, 12- air chamber.
Specific embodiment
With reference to specific embodiment, the technical scheme of this patent is described in more detail.
One kind -0.04MPa to 0.25MPa pressure gauge assay device, including the first testing equipment and the second testing equipment, institute
State the first testing equipment and include compressed air bottle, compressed air bottle seam is provided with the first air relief valve, the first air relief valve is provided with
Descending trachea, the descending trachea of the first air relief valve is connected with cross valve, and cross valve connects the first trachea, the second trachea respectively
And the 3rd trachea, the first trachea connect can folding closure gas circuit, second can be provided between folding closure gas circuit and the first trachea
Air relief valve, the second trachea connection standard table, the 3rd trachea connects detected table；First testing equipment and the second testing equipment are even
Connect, the second testing equipment includes piston cylinder, the inside of piston cylinder is provided with piston, and piston is connected with screw rod, in the side of piston cylinder
On be fixedly installed with screw rod cooperation nut, screw rod pass through nut inside, the end of screw rod is provided with crank；Described piston
Form air chamber with piston cylinder, air chamber is by gas circuit connection standard table and detected table respectively；Set on the screw rod of described upper piston area
There is the check valve fixing with screw position phase.
First testing equipment includes air pressure container, the first air relief valve, cross valve, the second air relief valve, standard scale, tested pressure
Power table.
First testing equipment connected mode：Air pressure container connects the first air relief valve, and the first air relief valve is connected by trachea
There is cross valve, cross valve passes through three descending tracheas respectively and connects the second air relief valve, standard scale, tested pressure gauge.
First testing equipment can examine and determine the detected pressure gauge of (0～0.25MPa) range with air dielectric；First inspection
The technological core of measurement equipment is that double air relief valve are connected by gas circuit.Airline pressure supercharging is controlled by the first air relief valve, is subtracted by second
Pressure valve controls airline pressure decompression.
First testing equipment verification process is as follows：First the second air relief valve cuts out when carrying out the calibrating in boost process,
By the first air relief valve to gas circuit uniform pressurization, the tested fixed point of calibrating pressure gauge is it is ensured that each tested manometric pressure is examined successively
Fixed point is all detected；First the first air relief valve cuts out when carrying out the calibrating of pressure reduction, gradually exitted by the second air relief valve
Each tested fixed point is examined and determine in blood pressure lowering successively.
Can be used using the pressure gauge of clean air dielectric pressure detecting (0～0.25) MPa by the first testing equipment
The digital standard table of 0.16 grade of (0～0.25) MPa examine and determine less than 1.6 grades ordinarily manometer effects very good it is ensured that each is tested
Manometric pressure calibration point is all detected.Double air relief valve are used in series more convenient, easy transformation, cost by gas circuit
Cheaply, principle is simple.
Second testing equipment includes improved bicycle pump, and the second testing equipment is constituted：Bicycle pump
Handle adds crank, and inflating rod leading portion adds piston, inflating rod is transformed into screw rod and the screw movement of nut is easy to accurately control
System pressurization and blood pressure lowering.By crank connecting screw rod, screw rod attaching nut, screw rod end connects piston, and air chamber is by gas circuit respectively
Connection standard table and tested table.Second testing equipment can examine and determine the micromanometer of (- 0.04MPa～+0.04) MPa range.
The core technology of the second testing equipment has following two, and first is to be provided with piston and check valve in described cylinder body, lives
Plug is located at check valve leading portion, and piston purposes is stably to add and subtract pressure, and check valve purposes is to prevent gas leakage in pressurization, has simultaneously
Supplement pressurization；Second is the plus-minus that the metal screw of overlength and thinner pitch can be precise and stable when moving on nut
Pressure, control gas room pressure size.Second testing equipment by by uncontrollable hand push piston type pressuring method be changed to stay bolt,
Thin pitch uniform pressurization, can realize the inspection of the micromanometer to (- 0.04MPa～+0.04) MPa by small-range digital standard table
Fixed.More grow bolt and thinner pitch due to having, make us in the pressure gauge of calibrating (- 0.04MPa～+0.04) MPa range
When more accurate, be easier manipulate.Piston and being used in combination of check valve can make equipment air-tightness more preferable.
Second testing equipment includes crank, crank connecting screw rod, screw rod attaching nut, and screw rod end connects piston, piston
In cylinder body.Air chamber is located at piston opposite side, and air chamber is by connecting line connection standard table and detected table respectively.By than
Examine and determine the pressure gauge in (- 0.04MPa～+0.04) MPa for the range compared with method.
This utility model passes through both the first testing equipment and the second testing equipment combine, and is capable of range is existed
The flexible member formula general purpose pressure gauge of (- 0.04～0.25MPa) is examined and determine, and this assay device is inexpensive, is common calibrating
/ 10th of equipment manufacturing cost, are fully compatible for the First Astronautic Research Institute for Measurement and Test at county level of financial strain and enterprise adopts, and equipment simply easily make,
Principle is simple, and improvement expenses and technology are cheap, is suitable for promoting and using it is easy to regular maintenance.
The foregoing is only this utility model preferred embodiment, not thereby limit embodiment of the present utility model and
Protection domain, to those skilled in the art it should can appreciate that in all utilization this utility model description and diagram
Scheme obtained by holding the equivalent made and obviously changing, all should be included in protection domain of the present utility model
Interior.
Claims (2)
1. one kind -0.04MPa to 0.25MPa pressure gauge assay device is it is characterised in that include the first testing equipment and the second inspection
Measurement equipment, described first testing equipment includes compressed air bottle, and compressed air bottle seam is provided with the first air relief valve, the first decompression
Valve is provided with descending trachea, and the descending trachea of the first air relief valve is connected with cross valve, cross valve connects respectively the first trachea,
Second trachea and the 3rd trachea, the first trachea connects and folding can close gas circuit, can be between folding closure gas circuit and the first trachea
It is provided with the second air relief valve, the second trachea connection standard table, the 3rd trachea connects detected table；First testing equipment and the second detection
Equipment connects, and the second testing equipment includes piston cylinder, and the inside of piston cylinder is provided with piston, and piston is connected with screw rod, in piston cylinder
Side on be fixedly installed with screw rod cooperation nut, screw rod pass through nut inside, the end of screw rod is provided with crank；Institute
State piston and form air chamber with piston cylinder, air chamber is by gas circuit connection standard table and detected table respectively.
2. -0.04MPa according to claim 1 to 0.25MPa pressure gauge assay device is it is characterised in that described piston
The screw rod on top is provided with the check valve fixing with screw position phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620748286.6U CN206002248U (en) | 2016-07-15 | 2016-07-15 | A kind of 0.04MPa to 0.25MPa pressure gauge assay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620748286.6U CN206002248U (en) | 2016-07-15 | 2016-07-15 | A kind of 0.04MPa to 0.25MPa pressure gauge assay device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206002248U true CN206002248U (en) | 2017-03-08 |
Family
ID=58201096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620748286.6U Expired - Fee Related CN206002248U (en) | 2016-07-15 | 2016-07-15 | A kind of 0.04MPa to 0.25MPa pressure gauge assay device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206002248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974927A (en) * | 2019-03-08 | 2019-07-05 | 漳州龙文区恩杰信息科技有限公司 | A kind of ankle Worn type smart machine based on the detection of river bank gas-liquid mixed pressure |
-
2016
- 2016-07-15 CN CN201620748286.6U patent/CN206002248U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974927A (en) * | 2019-03-08 | 2019-07-05 | 漳州龙文区恩杰信息科技有限公司 | A kind of ankle Worn type smart machine based on the detection of river bank gas-liquid mixed pressure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201852675U (en) | Calibration device for pressure gauge | |
| CN203981234U (en) | Pneumatic process volume measurement device | |
| CN107290222A (en) | A kind of rock triaxial test device and method | |
| CN103994798A (en) | Air-pressure method volume measurement device and an air-pressure method density measurement method | |
| CN101556199A (en) | Original position metering and calibrating device for pressure gauge | |
| CN202793688U (en) | Pressure gage calibrating device with air as medium | |
| CN109991120A (en) | Rock covers isothermal adsorption/desorption and displacement test equipment and method under press strip part | |
| CN206002248U (en) | A kind of 0.04MPa to 0.25MPa pressure gauge assay device | |
| CN205785801U (en) | A kind of pressure limiting valve opening pressure dry testing device | |
| CN103245567B (en) | Tester for compressive strength of hollow glass beads | |
| CN204694429U (en) | Valve leak detection test board | |
| CN202547864U (en) | Portable detector for gas pressure gage | |
| CN204439279U (en) | A kind of Pneumatic pressure table calibration equipment | |
| CN203688152U (en) | Novel gas pressure reducer verifying device | |
| CN2816787Y (en) | High-pressure gas-liquid two-plase sampler | |
| CN209354723U (en) | For detecting the pneumatic pressure transmitter of highly pressurised liquid | |
| CN104132707A (en) | Calibration system and method for volume of closed container | |
| CN201819763U (en) | Electric ultrahigh pressure piston type pressure gauge | |
| CN206378259U (en) | A kind of positive pressure tester of canister | |
| CN204903086U (en) | Pressure calibration equipment | |
| CN211425747U (en) | Simple air pressure detection device for pressure container | |
| CN204788846U (en) | Oily formula distribution transformer atmospheric pressure oil leak test device | |
| CN203037635U (en) | Portable type manually inflated pressure steel bottle for water potential measurement of plant | |
| CN203455125U (en) | Spring pressure gauge for portable air compressor | |
| CN208818421U (en) | A kind of energy storage pressure table calibration of hydraulic pressure device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20170715 |