CN105784263B - A kind of micro-pressure gauge - Google Patents
A kind of micro-pressure gauge Download PDFInfo
- Publication number
- CN105784263B CN105784263B CN201610296418.0A CN201610296418A CN105784263B CN 105784263 B CN105784263 B CN 105784263B CN 201610296418 A CN201610296418 A CN 201610296418A CN 105784263 B CN105784263 B CN 105784263B
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- China
- Prior art keywords
- pressure gauge
- micro
- dial
- pedestal
- wall
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0663—Flame protection; Flame barriers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0618—Overload protection
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention belongs to pressure-measuring instrument technologies, and in particular to a kind of micro-pressure gauge.The micro-pressure gauge includes spiral tube (1), dial (2), explosion-proof paper (3), dial pressing plate (4), watch crystal (5), pedestal (9).Wherein, the pedestal is hollow step pore structure, and lower end is to connect mouth with externally threaded, and middle-end bottom is provided with step and middle-end inner wall is provided with explosionproof hole, and upper end inner wall is provided with stepped hole.Spiral tube is located at pedestal middle-end, and bottom is arranged in lower termination mouth endoporus, bottom is held in dial setting in the base, and retain certain distance with spiral tube upper end face, the setting of dial pressing plate holds in bottom stage and compresses dial by downward boss in the base, watch crystal is set on the base on the stepped hole on the inner wall of end, and explosion-proof paper is attached on the middle-end inner wall explosionproof hole of bottom.The configuration of the present invention is simple, size is smaller, it is high pressure resistant the advantages that, be particularly suitable in the smaller use environment of size.
Description
Technical field
The invention belongs to pressure-measuring instrument technologies, and in particular to a kind of micro-pressure gauge.
Background technology
Pressure gauge refers to measuring using elastic element as sensing element and indicating that the instrument higher than environmental pressure, application are wider
It is general.The sensing element that pressure gauge uses on the market at present is generally c-type Bourdon tube, and volume is generally larger so that pressure gauge weight
Amount weight, volume is larger, is not convenient to use in narrow space and has necessarily required place to volume and weight, therefore is badly in need of setting
Count a kind of small volume, pressure gauge simple in structure.
Invention content
The purpose of the present invention is：A kind of small volume, simple in structure, light-weight micro-pressure gauge is provided.
The technical scheme is that：A kind of micro-pressure gauge comprising spiral tube 1, dial 2, explosion-proof paper 3, scale
Disk pressing plate 4, watch crystal 5, pedestal 9, wherein the pedestal is hollow step pore structure, and lower end is to connect mouth, middle-end with externally threaded
Bottom is provided with step and middle-end inner wall is provided with explosionproof hole, and upper end inner wall is provided with stepped hole, and spiral tube is located at pedestal middle-end,
And bottom is arranged in lower termination mouth endoporus, bottom is held in dial setting in the base, and retains one with spiral tube upper end face
Set a distance, the setting of dial pressing plate hold in bottom stage and compress dial by downward boss in the base, and watch crystal is set
It sets on the stepped hole on the inner wall of pedestal upper end, explosion-proof paper is attached on the middle-end inner wall explosionproof hole of bottom.
3 material of explosion-proof paper is cigarette paper.
It is fastened by sunk screw 8 between dial pressing plate and the middle of the base stepped hole.
It is provided with washer 6 above watch crystal, the snap ring 7 for closing in is provided with above washer.
The snap ring is closed up using agglomeration technique.
Bottom of the tube of spiraling with terminated under pedestal between mouth endoporus using together with silver brazing or soldering and welding.
The tube material that spirals is elastic alloy, and forms disk assembling structure by flattening coiling.
The pedestal surface portion is outer hexagonal structure.
The pedestal is stainless steel material or copper product or copper alloy.
The present invention has the advantage that and advantageous effect
Micro-pressure gauge of the present invention due to sensing element using spiral tube design, have it is small, it is simple in structure, it is light-weight
The advantages that, it is particularly suitable in the smaller use environment of size.
Description of the drawings
Fig. 1 is the structural schematic diagram of micro-pressure gauge of the present invention；
Fig. 2 is the scheme of installation of micro-pressure gauge of the present invention；
Fig. 3 is the structural schematic diagram of dial pressing plate of the present invention；
Fig. 4 is the structural schematic diagram of spiral tube of the present invention.
Specific implementation mode
The present invention is described in further details below in conjunction with the accompanying drawings.
Please refer to Fig. 1 and Fig. 2, the micro-pressure gauge includes spiral tube 1, dial 2, explosion-proof paper 3, dial pressure
Plate 4, watch crystal 5, pedestal 9.Wherein, the pedestal is hollow step pore structure, and lower end is to connect mouth, middle-end bottom with externally threaded
It is provided with step and middle-end inner wall is provided with explosionproof hole, upper end inner wall is provided with stepped hole.The tube material that spirals is that elasticity is closed
Gold, and disk assembling structure is formed by flattening coiling, it is located at pedestal middle-end, and bottom uses silver brazing or soldering and welding in lower end
It connects in mouth endoporus, therefore compact-sized, small volume is light-weight, can effectively reduce pressure gauge overall volume and weight.
In addition, bottom is held in the dial setting in the base, and retain certain distance, scale with spiral tube upper end face
The setting of disk pressing plate holds in bottom stage and compresses dial by downward boss in the base, and watch crystal is set on the base end
On stepped hole on inner wall.3 material of explosion-proof paper is cigarette paper, and sticker is on the middle-end inner wall explosionproof hole of bottom, the selection cigarette paper
As explosion-proof paper, thin and thick is appropriate, is ruptured when can effectively ensure that the pressure jump in table, so as to release stress, prevents table
Explosion, it is with obvious effects, while when pressure is normal in table, can effectively docile on explosionproof hole, and serve dust-proof grease proofing.
Please refer to Fig. 3, fastened by sunk screw 8 between dial pressing plate and the middle of the base stepped hole.
It is provided with washer 6 above watch crystal, the snap ring 7 for closing in is provided with above washer.
The snap ring is closed up using agglomeration technique, and watch crystal is compressed, and washer plays the role of buffering, prevents agglomeration
Watch crystal damages during closing in, can be very good to protect watch crystal.
In addition, the pedestal is stainless steel material or copper product or copper alloy, installed convenient for welding, and pedestal surface portion
For outer hexagonal structure, installed convenient for pressure gauge.
Embodiment
Micro-pressure gauge connects spiral tube assembly, dial, explosion-proof paper, dial pressing plate, watch crystal, washer, card by pedestal
Ring and sunk screw composition.
1) pedestal connects tube assembly of spiraling
Pedestal connects tube assembly of spiraling and is made of pedestal 9 and spiral tube 1, and pedestal is process by stainless steel bar, bottom interface
For the screw thread of NPT1/16, length 6mm, top is outer six side of S28, pressure gauge easy to disassemble；The tube material that spirals is that elasticity is closed
Jin Guan forms by flattening coiling, ensures its angular dimension by special process, welded together by silver solder between them
2) dial
2 material of dial is pure aluminum plate, and shape is c-type, front spraying black amino matt baking enamel, and passes through laser
It is processed graduation mark；
3) explosion-proof paper
3 material of explosion-proof paper is cigarette paper, and shape is circle, a diameter of Φ 4mm；
4) dial pressing plate
4 material of dial pressing plate is aluminium alloy, for fastening dial；5 material of watch crystal is aerial organic glass, diameter
For Φ 27.2mm, thickness 2mm；
5) watch crystal
5 material of watch crystal is aerial organic glass, a diameter of Φ 27.2mm, thickness 2mm；
6) washer
6 material of washer is silicon rubber, and shape is annulus, and outer diameter is Φ 27.4mm, and internal diameter is Φ 26mm, thickness 0.5mm；
7) snap ring
7 material of snap ring is stainless steel bar, a diameter of Φ 27.4mm；
8) sunk screw
Sunk screw 8 is GB/T68-M2 × 6, and quantity is 2.
Application method：
Micro-pressure gauge is screwed by monkey wrench in the pipeline for needing to connect, and screw thread is used between pressure gauge and pipeline
NPT1/16 connections, ensure that the reliability of installation.
Claims (8)
1. a kind of micro-pressure gauge, which is characterized in that including spiral tube (1), dial (2), explosion-proof paper (3), dial pressing plate
(4), watch crystal (5), pedestal (9), wherein the pedestal is hollow step pore structure, and lower end is to connect mouth, middle-end with externally threaded
Bottom is provided with step and middle-end inner wall is provided with explosionproof hole, and upper end inner wall is provided with stepped hole, and spiral tube is located at pedestal middle-end,
And bottom is arranged in lower termination mouth endoporus, bottom is held in dial setting in the base, and retains one with spiral tube upper end face
Set a distance, the setting of dial pressing plate hold in bottom stage and compress dial by downward boss in the base, and watch crystal is set
It sets on the stepped hole on the inner wall of pedestal upper end, explosion-proof paper is attached on the middle-end inner wall explosionproof hole of bottom, and explosion-proof paper (3) material is volume
Cigarette paper.
2. micro-pressure gauge according to claim 1, which is characterized in that between dial pressing plate and the middle of the base stepped hole
It is fastened by sunk screw (8).
3. micro-pressure gauge according to claim 2, which is characterized in that washer (6) is provided with above watch crystal, on washer
Side is provided with the snap ring (7) for closing in.
4. micro-pressure gauge according to claim 3, which is characterized in that the snap ring is closed up using agglomeration technique.
5. micro-pressure gauge according to claim 4, which is characterized in that under bottom of the tube of spiraling and pedestal termination mouth endoporus it
Between using silver brazing or soldering and welding together.
6. micro-pressure gauge according to claim 5, which is characterized in that the tube material that spirals is elastic alloy, and through overvoltage
Edge-wind system forms disk assembling structure.
7. micro-pressure gauge according to claim 6, which is characterized in that the pedestal surface portion is outer hexagonal structure.
8. micro-pressure gauge according to claim 7, which is characterized in that the pedestal be stainless steel material or copper product or
Copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296418.0A CN105784263B (en) | 2016-05-06 | 2016-05-06 | A kind of micro-pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296418.0A CN105784263B (en) | 2016-05-06 | 2016-05-06 | A kind of micro-pressure gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105784263A CN105784263A (en) | 2016-07-20 |
| CN105784263B true CN105784263B (en) | 2018-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610296418.0A Active CN105784263B (en) | 2016-05-06 | 2016-05-06 | A kind of micro-pressure gauge |
Country Status (1)
| Country | Link |
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| CN (1) | CN105784263B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876918A (en) * | 2017-11-08 | 2018-04-06 | 武汉航空仪表有限责任公司 | A kind of seal weld method of pressure gauge |
| CN110132482A (en) * | 2019-06-14 | 2019-08-16 | 马鞍山市浩宇仪表有限公司 | A kind of explosion-proof distance-transmission pressure gauge |
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2016
- 2016-05-06 CN CN201610296418.0A patent/CN105784263B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105784263A (en) | 2016-07-20 |
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