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 PDF

Info

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
piston
relief valve
valve
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
Application number
CN201620748286.6U
Other languages
Chinese (zh)
Inventor
李建华
刘丽红
李蕊
张佳权
张健
董天军
焦晓培
Original Assignee
刘海滨
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 刘海滨 filed Critical 刘海滨
Priority to CN201620748286.6U priority Critical patent/CN206002248U/en
Application granted granted Critical
Publication of CN206002248U publication Critical patent/CN206002248U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

One kind -0.04MPa to 0.25MPa pressure gauge assay device
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.
CN201620748286.6U 2016-07-15 2016-07-15 A kind of 0.04MPa to 0.25MPa pressure gauge assay device Expired - Fee Related CN206002248U (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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
CN203981234U (en) Pneumatic process volume measurement device
CN201852675U (en) Calibration device for pressure gauge
CN103994798A (en) Air-pressure method volume measurement device and an air-pressure method density measurement method
CN206002248U (en) A kind of 0.04MPa to 0.25MPa pressure gauge assay device
CN107290222A (en) A kind of rock triaxial test device and method
CN101556199A (en) Original position metering and calibrating device for pressure gauge
CN204439279U (en) A kind of Pneumatic pressure table calibration equipment
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
CN204422365U (en) The gas porous flow experimental provision of the distribution of dynamic monitoring pore pressure and change
CN201819763U (en) Electric ultrahigh pressure piston type pressure gauge
CN105181242A (en) Pressure checking apparatus
CN204903086U (en) Pressure calibration equipment
CN205091081U (en) Barometer
CN206378259U (en) A kind of positive pressure tester of canister
CN205300692U (en) Portable volumetric measurement experimental apparatus
CN104132707A (en) Calibration system and method for volume of closed container
CN202547864U (en) Portable detector for gas pressure gage
CN204788846U (en) Oily formula distribution transformer atmospheric pressure oil leak test device
CN204085616U (en) A kind of volumetric calibration system of closed container
CN203688152U (en) Novel gas pressure reducer verifying device
CN205483397U (en) Electronic pressure calibrator of gas medium
CN203037635U (en) Portable type manually inflated pressure steel bottle for water potential measurement of plant
CN203455125U (en) Spring pressure gauge for portable air compressor

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