CN205940859U - Little differential pressure gauge with relief valve - Google Patents
Little differential pressure gauge with relief valve Download PDFInfo
- Publication number
- CN205940859U CN205940859U CN201620929382.0U CN201620929382U CN205940859U CN 205940859 U CN205940859 U CN 205940859U CN 201620929382 U CN201620929382 U CN 201620929382U CN 205940859 U CN205940859 U CN 205940859U
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- CN
- China
- Prior art keywords
- relief valve
- installing zone
- medium chamber
- pressure medium
- differential pressure
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Abstract
The utility model discloses a little differential pressure gauge with relief valve, which comprises a housin, differential pressure measurement mechanism and the panel board that shows differential pressure measured data, differential pressure measurement mechanism and panel board setting are in the casing, be provided with high -pressure medium chamber and low pressure medium chamber on the casing bottom surface, the casing bottom surface is provided with a plurality of protruding muscle, protruding muscle is separated the casing bottom surface and is formed high -pressure medium chamber installing zone, low pressure medium chamber installing zone and relief valve installing zone, low pressure medium chamber installing zone is located casing bottom surface one side, high -pressure medium chamber installing zone and relief valve installing zone are located the opposite side, be provided with the installation cavity in the relief valve installing zone, the relief valve passes through the installation cavity and installs in the casing, the relief valve includes the column cock body that constitutes interference fit with the installation cavity, column cock body one end is formed with the cap in radial direction, the cap diameter is greater than the installation cavity aperture and covers on the installation cavity, make the release by oneself when the urgent release of needs of pressure differential table, and the device can not be damaged, and the service life of the ball lifter can be extended.
Description
Technical field
This utility model is related to micro-differential pressure gauge instrument and meter, especially a kind of micro-differential pressure gauge with relief valve.
Background technology
It is poor that micro-differential pressure gauge is widely used in measuring the pressure of fan and aerator, filter resistance, wind speed, furnace pressure, orifice plate
Pressure, bubble water level and liquid amplifier or hydraulic system pressure etc., are also used for the air gas ratio control in combustion process simultaneously
System and automatic valve control etc., multi-field middle and it is simple for structure, small volume with extensively, power consumption is low, and application place is wide
General, it has also become requisite instrument in production, but all the more extensive with micro-differential pressure gauge application, and the requirement to it is also healed
Plus harsh, and traditional micro-differential pressure gauge is generally not provided with release or pressure discharge device, and instrument high-pressure medium chamber, low-pressure medium chamber and
The dielectric cavity bore that comes in and goes out in side mismatches, when squeezing in large-scale instrument when hyperbar forms huge pressure reduction so that gauge internal is formed
Immense pressure, beyond instrument measurement scope, instrument itself release row pressure inconvenience, easily makes the explosion of instrument mask lid or will input
Or gas outlet tube jumps out dielectric cavity, cause device damage or even initiation potential.
Content of the invention
For the deficiencies in the prior art, this utility model provides a kind of micro-differential pressure gauge with relief valve so that differential pressure indicator
The voluntarily release when needing emergency relief, not damage equipment, extension device service life.
This utility model provides a kind of micro-differential pressure gauge with relief valve, poor including housing, differential pressure measurement mechanism and display
The instrumental panel of pressure measurement data, described differential pressure measurement mechanism and instrumental panel are arranged in housing, and described housing bottom surface is provided with
High-pressure medium chamber and low-pressure medium chamber, described housing bottom surface is provided with some convex tendons, and described convex tendon separates housing bottom surface and forms height
Pressure dielectric cavity installing zone, low-pressure medium chamber installing zone and relief valve installing zone, described low-pressure medium chamber installing zone is located at housing bottom
Face side, described high-pressure medium chamber installing zone and relief valve installing zone are located at opposite side, are provided with described relief valve installing zone
Installation cavity, described relief valve is installed on housing by installation cavity, and described relief valve includes constituting the post of interference fit with installation cavity
Shape cock body, described column cock body one end is formed with cap in radial directions, and described cap with diameter greater than installation cavity aperture and covers
Cover on installation cavity.
So setting beneficial effect be：Using such scheme, micro-differential pressure gauge adds relief valve, contributed to micro-
Under differential pressure gauge inner high voltage state, air pressure inside reaches marginal value, and gas is agitated and flicked relief valve, so that seal casinghousing internal gas pressure is obtained
Release, it is to avoid personnel, near carrying out the danger of release, are prevented effectively from and peril, effective protection equipment simultaneously, prolongs
The service life of long micro-differential pressure gauge.
This utility model is further arranged to described convex tendon depression and is formed fluted, and described relief valve is provided with connects chain,
Described connects chain central authorities are provided with projection, and described connects chain one end is connected with cap, and it is wider that the described connects chain other end is provided with two ends
The narrower fixed block in stage casing, described fixed block stage casing is arranged in groove and constitutes interference fit with groove.
So setting beneficial effect be：Using such scheme, it is to avoid found after relief valve cock body bounces off housing,
May be used after quickly jumping a queue, improve device efficiency, more efficient quick, cock body is not easy to lose, effectively reduces economy
Cost, connects chain central authorities are provided with projection, and convenient relief valve of differentiating under dark condition is positive and negative, the relief valve that realization fast comes off.
This utility model is further arranged to described relief valve column cock body, connects chain and fixed block and is wholely set, described
Column cock body, connects chain and fixed block are made up of rubber.
So setting beneficial effect be：Using such scheme so that relief valve processing and manufacturing is simple, using rubber manufacture
Cost is lower, and rubber compounding housing has more preferable air-tightness it is ensured that the accuracy of micro-differential pressure gauge device measuring.
Brief description
Fig. 1 is the structural representation of this utility model embodiment；
Fig. 2 is the explosive view of this utility model embodiment；
Fig. 3 is the structural representation of this utility model embodiment relief valve；
Fig. 4 is the side view of this utility model embodiment relief valve.
Specific embodiment
By Fig. 1 to Fig. 4 as can be seen that the utility model discloses a kind of micro-differential pressure gauge with relief valve, including housing
1st, the instrumental panel of differential pressure measurement mechanism and display differential pressure measurement data, described differential pressure measurement mechanism and instrumental panel are arranged on housing
Interior, described housing 1 bottom surface is provided with high-pressure medium chamber 11 and low-pressure medium chamber 12, described housing 1 bottom surface is provided with convex in length and breadth
Muscle 3, described convex tendon 3 separates housing 1 bottom surface and forms high-pressure medium chamber installing zone 5, low-pressure medium chamber installing zone 6 and relief valve installation
Area 4, described high-pressure medium chamber 11 is installed in high-pressure medium chamber installing zone 5, and described low-pressure medium chamber 12 is installed in low-pressure medium
In chamber installing zone 6, described low-pressure medium chamber installing zone 6 is located at housing 1 bottom surface side, described high-pressure medium chamber installing zone 5 and letting out
Pressure valve installing zone 4 is located at housing 1 bottom surface opposite side, is provided with installation cavity 13, described relief valve 2 in described relief valve installing zone 4
Housing 1 is installed on by installation cavity 13, described relief valve 1 includes constituting the column cock body 21 of interference fit, institute with installation cavity 13
State column cock body 21 head protuberance and be formed with cap 24 in radial directions, described cap 24 is with diameter greater than installation cavity 13 aperture
And covering on installation cavity 13, described convex tendon 3 depression forms fluted 14, and described relief valve 2 is provided with connects chain 22, described company
Chain link 22 central authorities are provided with raised 25, and described connects chain 22 one end is connected with cap 24, and described connects chain 22 other end is provided with two ends
The fixed block 23 narrower compared with alleviating distention in middle-JIAO section, described fixed block 23 stage casing is arranged in groove 14 and constitutes interference fit with groove 14.
The present embodiment is further arranged to described relief valve column cock body 21, connects chain 22 and fixed block 23 and is wholely set,
Described column 21 cock body, connects chain 22 and fixed block 23 are made by rubber.
The above embodiments are only preferred embodiment of the present utility model it is impossible to limit right of the present utility model with this
Scope, therefore, the equivalent variations made according to this utility model claim, such as adopt similar technique, similar structures
Equivalent product still belongs to the scope that this utility model is covered.
Claims (3)
1. a kind of micro-differential pressure gauge with relief valve, including the instrument of housing, differential pressure measurement mechanism and display differential pressure measurement data
Disk, described differential pressure measurement mechanism and instrumental panel are arranged in housing, and described housing bottom surface is provided with high-pressure medium chamber and low pressure
Dielectric cavity it is characterised in that：Described housing bottom surface is provided with some convex tendons, and described convex tendon separates housing bottom surface and forms high-pressure medium
Chamber installing zone, low-pressure medium chamber installing zone and relief valve installing zone, described high-pressure medium chamber is installed in high-pressure medium chamber installing zone
Interior, described low-pressure medium chamber is installed in the installing zone of low-pressure medium chamber, and described low-pressure medium chamber installing zone is located at housing bottom surface one
Side, described high-pressure medium chamber installing zone and relief valve installing zone are located at opposite side, are provided with installation in described relief valve installing zone
Chamber, described relief valve is installed on housing by installation cavity, and described relief valve includes constituting the column plug of interference fit with installation cavity
Body, described column cock body head protuberance is simultaneously formed with cap in radial directions, and described cap is with diameter greater than installation cavity aperture simultaneously
Cover on installation cavity.
2. the micro-differential pressure gauge with relief valve according to claim 1 it is characterised in that：Described convex tendon depression is formed with recessed
Groove, described relief valve is provided with connects chain, and described connects chain central authorities are provided with projection, and described connects chain one end is connected with cap, institute
State the connects chain other end and be provided with the two ends fixed block narrower compared with alleviating distention in middle-JIAO section, described fixed block stage casing is arranged in groove and and groove
Constitute interference fit.
3. the micro-differential pressure gauge with relief valve according to claim 2 it is characterised in that：Described relief valve column cock body,
Connects chain and fixed block are wholely set, and described column cock body, connects chain and fixed block are made by rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620929382.0U CN205940859U (en) | 2016-08-22 | 2016-08-22 | Little differential pressure gauge with relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620929382.0U CN205940859U (en) | 2016-08-22 | 2016-08-22 | Little differential pressure gauge with relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205940859U true CN205940859U (en) | 2017-02-08 |
Family
ID=57952330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620929382.0U Active CN205940859U (en) | 2016-08-22 | 2016-08-22 | Little differential pressure gauge with relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205940859U (en) |
-
2016
- 2016-08-22 CN CN201620929382.0U patent/CN205940859U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |