CN108132122A - A kind of fire extinguisher pressure limit display - Google Patents
A kind of fire extinguisher pressure limit display Download PDFInfo
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- CN108132122A CN108132122A CN201711425099.XA CN201711425099A CN108132122A CN 108132122 A CN108132122 A CN 108132122A CN 201711425099 A CN201711425099 A CN 201711425099A CN 108132122 A CN108132122 A CN 108132122A
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- indicator solution
- outer cover
- tube
- wall
- constant force
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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
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/10—Means for indicating or recording, e.g. for remote indication mechanical
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of fire extinguisher pressure limit displays, including spherical transparent outer cover, the spherical inner casing in transparent outer cover；Transparent outer cover one end is fixedly connected with outer tube, and the one end of outer tube far from transparent outer cover is integrally formed with annular slab.Inner casing is fixedly connected with inner tube, and inner casing is run through in inner tube one end；Inner tube runs through outer tube；Inwardly the second constant force spring, the first constant force spring and annular piston are connected in turn on the inside of annular slab.The liquid storage cylinder of closing is formed between plunger, the inner wall of inner tube, transparent outer cover inner wall, inner casing outer wall, outer tube wall and annular piston；The indicator solution of three sections of different colours is stored in liquid storage cylinder, yellow indicator solution, green indicator solution and red indicator solution are followed successively by from plunger to annular piston direction.By two constant force springs, corresponding fire extinguisher air pressure, two pistons it is common under the action of, the indicator solution of corresponding color is pressed between transparent outer cover and inner casing, in this way can be from multiple angles at a distance, convenient for observation.
Description
Technical field
The invention belongs to pressure gauge for fire extinguisher fields, and in particular to a kind of fire extinguisher pressure limit display.
Background technology
Since present fire extinguisher air gauge surface is at vertical plane, so that be put on the ground and chest in go out
Firearm inspection is got up to bother very much, will squat down or even also fire extinguisher is taken out in chest, rotate, ability
See barometric instruction situation.It is very laborious in this way to take.
Invention content
The technical problems to be solved by the invention are：In view of the deficienciess of the prior art, the present invention designs a kind of convenience
Know the instruction device of fire extinguisher pressure limit.
Purpose to realize the present invention, is achieved using following technical scheme：
A kind of fire extinguisher pressure limit display includes spherical transparent outer cover, in transparent outer cover and axis concentric with it
Spherical inner casing；The transparent outer cover interior diameter is bigger 1-2mm than inner casing overall diameter.
The transparent outer cover one end open, opening are fixedly connected with outer tube, one end one of the outer tube far from transparent outer cover
Form annular slab.
Along the molding of same diameter both ends there are two symmetrical oral area, one of oral area inside is fixedly connected with the inner casing
Inner tube, the other end of inner tube run through another oral area；Said inner tube runs through outer tube；The threaded one end that said inner tube is in outside shell connects
Attachment cap is connected to, attachment cap is integrally formed with the connecting tube being connect with fire extinguisher bottle.
The annular slab internal ring wall is fixedly connected with outer wall of inner tube；The second constant pressure bullet is fixedly connected on the inside of the annular slab
Spring, the one end of the second constant force spring far from annular slab are fixedly connected with the first constant force spring, and the first constant force spring is far from the second perseverance
One end of pressing spring is fixedly connected with annular piston；Including second constant force spring, the first constant force spring and annular piston set
Pipe is outer；The plunger coordinated with inner tubal wall is installed in said inner tube.
It is formed between plunger, the inner wall of inner tube, transparent outer cover inner wall, inner casing outer wall, outer tube wall and annular piston
The liquid storage cylinder of closing；The indicator solution of three sections of different colours is stored in liquid storage cylinder, from plunger to annular piston direction successively
For yellow indicator solution, green indicator solution and red indicator solution, wherein red indicator solution filling is full between transparent outer cover and inner casing
Space, green indicator solution and other two kinds it is immiscible.
The yellow indicator solution, green indicator solution and the red respective amount of indicator solution can at least fill full transparent outer cover and interior
Space between shell.
Compared with prior art, the beneficial effects of the invention are as follows：Plunger, the inner wall of inner tube, transparent outer cover inner wall,
The liquid storage cylinder of closing is formed between inner casing outer wall, outer tube wall and annular piston；Three sections of different colours are stored in liquid storage cylinder
Indicator solution is followed successively by yellow indicator solution, green indicator solution and red indicator solution from plunger to annular piston direction, wherein red
The full space between transparent outer cover and inner casing of color indicator solution filling, green indicator solution and other two kinds it is immiscible.The annular slab
Inside is fixedly connected with the second constant force spring, and the one end of the second constant force spring far from annular slab is fixedly connected with the first constant pressure bullet
Spring, the one end of the first constant force spring far from the second constant force spring are fixedly connected with annular piston.By two constant force springs, accordingly
Fire extinguisher air pressure, two pistons it is common under the action of, the indicator solution of corresponding color is pressed between transparent outer cover and inner casing, shape
Into the indicator solution of a spherical shell shape, enlarged surface product in this way can be very clear from multiple angles at a distance, is highly convenient for
Observation.
Description of the drawings
Fig. 1 is the appearance diagram of the present invention.
Fig. 2 is sectional view of the present invention.
Fig. 3 is enlarged drawing at B in Fig. 2.
Fig. 4 is inner casing of the present invention and the structure diagram of inner tube.
Fig. 5 is the schematic diagram of this present invention transparent outer cover and outer tube.
Fig. 6 is the structure diagram of attachment cap of the present invention.
Fig. 7 is 2 internal structure schematic diagram of embodiment.
Fig. 8 is 2 second anti-mixing device structure diagram of embodiment.
Fig. 9, Figure 10 are 2 first anti-mixing device structure diagrams of embodiment.
1st, transparent outer cover；11st, outer tube；111st, annular slab；12nd, annular partition；121st, arcuate socket；13rd, bending tube；131st, it is curved
Roll over access；2nd, inner casing；21st, inner tube；22nd, circular bulkheads；221st, through-hole；23rd, screwed pipe；3rd, attachment cap；31st, connecting tube；4th, circle
Column piston；5th, annular piston；6th, the first constant force spring；7th, the second constant force spring.
Specific embodiment
The specific embodiment of the present invention is made a detailed explanation below according to attached drawing.
Embodiment 1
As shown in Figures 1 to 6, the present embodiment is a kind of fire extinguisher pressure limit display, includes spherical transparent outer cover 1,
In transparent outer cover and the spherical inner casing 2 of axis concentric with it；The transparent outer cover interior diameter is bigger 1- than inner casing overall diameter
2mm。
The transparent outer cover one end open, opening are fixedly connected with outer tube 11, the one end one of outer tube far from transparent outer cover
It is body formed to have annular slab 111.
Along the molding of same diameter both ends there are two symmetrical oral area, one of oral area inside is fixedly connected the inner casing 2
There is inner tube 21, the other end of inner tube runs through another oral area；Said inner tube runs through outer tube；Said inner tube is in one end spiral shell outside shell
Line is connected with attachment cap 3, and attachment cap is integrally formed with the connecting tube 31 being connect with fire extinguisher bottle.
111 internal ring wall of annular slab is fixedly connected with outer wall of inner tube；111 inside of annular slab is fixedly connected with second
Constant force spring 7, the one end of the second constant force spring far from annular slab are fixedly connected with the first constant force spring 6, and the first constant force spring is remote
One end from the second constant force spring is fixedly connected with annular piston 5；Second constant force spring, the first constant force spring and annular are lived
Plug sleeve is outside inner tube；The plunger 4 coordinated with inner tubal wall is installed in said inner tube.
It is formed between plunger, the inner wall of inner tube, transparent outer cover inner wall, inner casing outer wall, outer tube wall and annular piston
The liquid storage cylinder of closing；The indicator solution of three sections of different colours is stored in liquid storage cylinder, from plunger to annular piston direction successively
For yellow indicator solution, green indicator solution and red indicator solution, at yellow indicator solution and green indicator solution in inner tube, red indicator solution
The full space between transparent outer cover and inner casing of filling, green indicator solution and other two kinds it is immiscible.
The yellow indicator solution, green indicator solution and the red respective amount of indicator solution can at least fill full transparent outer cover and interior
Space between shell.
Constant force spring is the prior art, such as Switzerland document CH645959A5 and China application No. is 2016107879803
Patent discloses the technical characterstic of constant force spring.Present invention utilizes constant force spring provide pressure it is constant the characteristics of, work as pressure
When reaching the pressure value of constant force spring, constant force spring is just compressed, and since gas is past surrounding expanding under gas pressure,
So air pressure provides a lasting forward power, constant force spring is allowed for once being compressed, will all be compressed.
There is error in a certain range as constant force spring, can be mended by suitably increasing the amount of each indicator solution
It repays, so as to reduce error.This does not need to make the creative labor to one skilled in the art, easily solves.
It is illustrated for air pressure when a kind of green area is the dry powder extinguisher of 1-1.4MPa below：
1st, when fire extinguisher pressure is less than 1MPa, two constant force springs cannot all be compressed, and be at this time original state, red instruction
The full space between transparent outer cover and inner casing of liquid filling, the fire extinguisher pressure that this display is shown are red, are represented under-voltage.
2nd, when fire extinguisher pressure is greater than or equal to 1MPa（But no more than 1.4MPa）, the first constant force spring just starts to be pressed
It contracts complete compression, red indicator solution is all pressed into outer tube, and green indicator solution filling is full between transparent outer cover and inner casing
Space.This display shows pressure as green at this time, and fire extinguisher pressure is normal.
When pressure is dropped to less than 1MPa, the first constant force spring resets and pushes annular piston completely so that red instruction
Liquid enters and fills the space between full transparent outer cover and inner casing, and green indicator solution is pressed into inner tube, returns to above-mentioned 1 instruction feelings
Condition.
3rd, when pressure is more than 1.4MPa in fire extinguisher, the second constant force spring just starts to be compressed, and compress completely, green
Indicator solution is all pressed into outer tube, and yellow indicator solution is pressed into and fills the space between full transparent outer cover and inner casing.At this time
This display shows that pressure is yellow, and fire extinguisher pressure is excessive.
When pressure drops to 1-1.4MPa, the second constant force spring, which resets, squeezes annular piston so that green indicator solution is pressed
Enter and fill the space between full transparent outer cover and inner casing, yellow indicator solution is pressed into inner tube, the pressure of this display display at this time
Power is green, and fire extinguisher pressure is normal.
Embodiment 2
A kind of fire extinguisher pressure limit display includes spherical transparent outer cover, in transparent outer cover and axis concentric with it
Spherical inner casing；The transparent outer cover interior diameter is bigger 1-2mm than inner casing overall diameter.
The transparent outer cover one end open, opening are fixedly connected with outer tube, one end one of the outer tube far from transparent outer cover
Form annular slab.
Along the molding of same diameter both ends there are two symmetrical oral area, one of oral area inside is fixedly connected with the inner casing
Inner tube, the other end of inner tube run through another oral area；Said inner tube runs through outer tube；The threaded one end that said inner tube is in outside shell connects
Attachment cap is connected to, attachment cap is integrally formed with the connecting tube being connect with fire extinguisher bottle.
The annular slab internal ring wall is fixedly connected with outer wall of inner tube；The second constant pressure bullet is fixedly connected on the inside of the annular slab
Spring, the one end of the second constant force spring far from annular slab are fixedly connected with the first constant force spring, and the first constant force spring is far from the second perseverance
One end of pressing spring is fixedly connected with annular piston；Including second constant force spring, the first constant force spring and annular piston set
Pipe is outer；The plunger coordinated with inner tubal wall is installed in said inner tube.
Such as Fig. 7-10, the first anti-mixing device is installed in the outer tube, the second anti-mixing device is installed in inner tube；Described
One anti-mixing device includes the tube wall bending tube 13 continuously bent and is fixedly connected respectively with one end in bending tube both ends
Two annular partitions 12；Described two annular partitions are fixedly connected respectively with outer tube wall, and one of annular partition is close to thoroughly
The opening of bright outer cover；Bending access 131 is formed in the bending tube, annular partition forms multiple along annular partition circumferential direction
Evenly distributed arcuate socket 121, the width of arcuate socket is 1-2mm；The bending access is communicated with arcuate socket；Described second is anti-mixed
Device includes screwed pipe 23 and is connected to two circular bulkheads 22 at screwed pipe both ends；Screwed pipe one end is fixedly connected with one
A circular bulkheads；Described two circular bulkheads are fixedly connected respectively with inner tube wall, one of them is in inner tube far from connection
Nozzle at cap；Form threaded pathway in the screwed pipe, circular bulkheads middle section forms through-hole 221, through-hole it is straight
Diameter is 1-2mm；Threaded pathway is communicated with through-hole.
Plunger, the inner wall of inner tube, threaded pathway, transparent outer cover inner wall, inner casing outer wall, outer tube wall, bending access
The liquid storage cylinder of closing is formed between annular piston；The indicator solution of three sections of different colours is stored in liquid storage cylinder, from plunger
To annular piston direction it is followed successively by yellow indicator solution, green indicator solution and red indicator solution, red indicator solution, yellow indicator solution
Volume is 2v, and the volume of green indicator solution is v, and the spatial volume between inner casing outer wall and outer tube wall is v, screwed pipe, curved
The volume of broken pipe is all v；Original state：Yellow indicator solution is completely in inner tube, and green indicator solution is in screwed pipe, red
Indicator solution half is between inner casing outer wall and outer tube wall, the other half is in bending tube.
It is illustrated for air pressure when a kind of green area is the dry powder extinguisher of 1-1.4MPa below：
1st, when fire extinguisher pressure is less than 1MPa, two constant force springs cannot all be compressed, and be at this time original state, red instruction
The full space between transparent outer cover and inner casing of liquid filling, the fire extinguisher pressure that this display is shown are red, are represented under-voltage.
2nd, when fire extinguisher pressure is greater than or equal to 1MPa（But no more than 1.4MPa）, the first constant force spring just starts to be pressed
It contracts complete compression, red indicator solution is all pressed into bending tube and outer tube, and green indicator solution is pressed into and fills completely transparent
Space between shell and inner casing, yellow indicator solution half are pressed into screwed pipe.This display shows pressure as green at this time,
Fire extinguisher pressure is normal.
When pressure is dropped to less than 1MPa, the first constant force spring resets and pushes annular piston completely so that red instruction
Liquid half enters and fills the space between full transparent outer cover and inner casing, and green indicator solution is pressed into screwed pipe, yellow instruction
Liquid is pressed into inner tube entirely, returns to above-mentioned 1 instruction situation.
3rd, when pressure is more than 1.4MPa in fire extinguisher, the second constant force spring just starts to be compressed, and compress completely, red
Indicator solution is all pressed into outer tube, and green indicator solution is all pressed into bending tube, and yellow indicator solution half is pressed into and fills out
Full of the space between transparent outer cover and inner casing, the other half enters in screwed pipe.This display shows that pressure is yellow at this time, goes out
Firearm pressure is excessive.
When pressure drops to 1-1.4MPa, the second constant force spring, which resets, squeezes annular piston so that green indicator solution is pressed
Enter and fill the space between full transparent outer cover and inner casing, yellow indicator solution half is in screwed pipe, the other half is in inner tube
Interior, this display shows pressure as green at this time, and fire extinguisher pressure is normal.
Difference lies in be mounted with the first anti-mixing device in outer tube, be mounted in inner tube in the present embodiment and 1 structure of embodiment
Second anti-mixing device.The benefit compared in this way with embodiment：The contact area between two kinds of different colours indicator solutions is reduced, big
Power causes two different colors of indicator solution will not be there is a situation where mixing when shaking fire extinguisher, improve the present invention can
By property, stability.
Three kinds of indicator solutions of two embodiments, those skilled in the art can be selected according to actual conditions, herein
A kind of scheme of three kinds of indicator solutions of embodiment 1 and embodiment 2 is provided, it is as follows：
Yellow indicator solution：Using the ferrum sulfuricum oxydatum solutum of yellow.
Green indicator solution：Using emerald high-quality No. 97 gasoline.
Red indicator solution：Using red liquor potassic permanganate.
The density of these three indicator solutions to be configured essentially the same, would not there is a situation where be layered.Yellow indicator solution and
The density of red indicator solution can be controlled by the ferric sulfate or potassium permanganate of addition.Green indicator solution is just needed in gasoline
In dissolve in suitable carbon tetrachloride to improve density, with regard to its density and other two kinds of indicator solution density can be made essentially the same.
Claims (2)
1. a kind of fire extinguisher pressure limit display, which is characterized in that include spherical transparent outer cover, in transparent outer cover
And the spherical inner casing of axis concentric with it；The transparent outer cover interior diameter is bigger 1-2mm than inner casing overall diameter；
The transparent outer cover one end open, opening are fixedly connected with outer tube, and the one end of outer tube far from transparent outer cover is integrally formed
There is annular slab；
Along the molding of same diameter both ends there are two symmetrical oral area, one of oral area inside is fixedly connected with interior the inner casing
Pipe, the other end of inner tube run through another oral area；Said inner tube runs through outer tube；Said inner tube is in the threaded one end connection outside shell
There is attachment cap, attachment cap is integrally formed with the connecting tube being connect with fire extinguisher bottle；
The annular slab internal ring wall is fixedly connected with outer wall of inner tube；The second constant force spring is fixedly connected on the inside of the annular slab,
The one end of second constant force spring far from annular slab is fixedly connected with the first constant force spring, and the first constant force spring is far from the second constant pressure bullet
One end of spring is fixedly connected with annular piston；Second constant force spring, the first constant force spring and annular piston are sleeved on outside inner tube；
The plunger coordinated with inner tubal wall is installed in said inner tube；
Closing is formed between plunger, the inner wall of inner tube, transparent outer cover inner wall, inner casing outer wall, outer tube wall and annular piston
Liquid storage cylinder；The indicator solution of three sections of different colours is stored in liquid storage cylinder, Huang is followed successively by from plunger to annular piston direction
Color indicator solution, green indicator solution and red indicator solution, wherein the red full space between transparent outer cover and inner casing of indicator solution filling,
Green indicator solution and other two kinds it is immiscible.
2. a kind of fire extinguisher pressure limit display according to claim 1, which is characterized in that the yellow indicator solution,
Green indicator solution and the red respective amount of indicator solution can at least fill the space between full transparent outer cover and inner casing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711425099.XA CN108132122B (en) | 2017-12-25 | 2017-12-25 | A kind of fire extinguisher pressure limit display |
| CN201910947339.5A CN110657915B (en) | 2017-12-25 | 2017-12-25 | Fire extinguisher pressure indicating liquid anti-mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711425099.XA CN108132122B (en) | 2017-12-25 | 2017-12-25 | A kind of fire extinguisher pressure limit display |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910947339.5A Division CN110657915B (en) | 2017-12-25 | 2017-12-25 | Fire extinguisher pressure indicating liquid anti-mixing device |
Publications (2)
| Publication Number | Publication Date |
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| CN108132122A true CN108132122A (en) | 2018-06-08 |
| CN108132122B CN108132122B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711425099.XA Active CN108132122B (en) | 2017-12-25 | 2017-12-25 | A kind of fire extinguisher pressure limit display |
| CN201910947339.5A Active CN110657915B (en) | 2017-12-25 | 2017-12-25 | Fire extinguisher pressure indicating liquid anti-mixing device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910947339.5A Active CN110657915B (en) | 2017-12-25 | 2017-12-25 | Fire extinguisher pressure indicating liquid anti-mixing device |
Country Status (1)
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| CN (2) | CN108132122B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2077122U (en) * | 1990-05-17 | 1991-05-15 | 胡志俊 | Liquid display pressure gauge for fire fighting |
| JPH041956Y2 (en) * | 1986-07-30 | 1992-01-23 | ||
| CN204319572U (en) * | 2014-11-14 | 2015-05-13 | 天津港海科技有限公司 | A kind of aerosol pot type fire extinguisher with pressure-display device |
| CN106679855A (en) * | 2017-01-17 | 2017-05-17 | 太原理工大学 | Apparatus and method of monitoring unidirectional force by means of liquid mixing color changing |
| CN106983974A (en) * | 2016-10-31 | 2017-07-28 | 陈春来 | A kind of fire extinguisher of multifunctional equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074729C (en) * | 1996-05-07 | 2001-11-14 | 创新企业有限公司 | Pressure indicating device |
| US6167912B1 (en) * | 1997-11-25 | 2001-01-02 | Patrick J. Stephens | Method and composition for grouting water-flooded conduits |
| KR200256308Y1 (en) * | 2001-08-17 | 2001-12-24 | 코리아세이프티닷컴(주) | Powder fire-extinguisher with transparency window |
| US7412877B1 (en) * | 2005-10-24 | 2008-08-19 | Hongfeng Bi | High pressure viscometer with chamber preventing sample contamination |
| CN201974270U (en) * | 2011-02-22 | 2011-09-14 | 杭州吉星仪表机械有限公司 | Pressure display of film-type fire extinguisher |
| US9482220B2 (en) * | 2012-06-07 | 2016-11-01 | Asco Power Technologies, L.P. | Dual redundancy in fire pump controllers |
-
2017
- 2017-12-25 CN CN201711425099.XA patent/CN108132122B/en active Active
- 2017-12-25 CN CN201910947339.5A patent/CN110657915B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH041956Y2 (en) * | 1986-07-30 | 1992-01-23 | ||
| CN2077122U (en) * | 1990-05-17 | 1991-05-15 | 胡志俊 | Liquid display pressure gauge for fire fighting |
| CN204319572U (en) * | 2014-11-14 | 2015-05-13 | 天津港海科技有限公司 | A kind of aerosol pot type fire extinguisher with pressure-display device |
| CN106983974A (en) * | 2016-10-31 | 2017-07-28 | 陈春来 | A kind of fire extinguisher of multifunctional equipment |
| CN106679855A (en) * | 2017-01-17 | 2017-05-17 | 太原理工大学 | Apparatus and method of monitoring unidirectional force by means of liquid mixing color changing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108132122B (en) | 2019-11-08 |
| CN110657915A (en) | 2020-01-07 |
| CN110657915B (en) | 2021-01-19 |
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