CN1129802A - Mounting mechanism for bourdon tube pressure gauge - Google Patents
Mounting mechanism for bourdon tube pressure gauge Download PDFInfo
- Publication number
- CN1129802A CN1129802A CN95116677A CN95116677A CN1129802A CN 1129802 A CN1129802 A CN 1129802A CN 95116677 A CN95116677 A CN 95116677A CN 95116677 A CN95116677 A CN 95116677A CN 1129802 A CN1129802 A CN 1129802A
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- CN
- China
- Prior art keywords
- mentioned
- pressure
- pressure gauge
- port
- casing
- 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.)
- Pending
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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
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/04—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges
- G01L7/041—Construction or mounting of deformable tubes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/04—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges
- G01L7/043—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges with mechanical transmitting or indicating means
Abstract
A pressure guide pipe 18 is protrudent at the back surface of a pressure gauge to guide fluid pressure to a Bourdon pipe 17; the interior of a port 51 for pressure measurement of a fluid pressure machine 40 is matched with a sealing ring 52 with an inner diameter which is less than the pressure guide pipe. The pressure guide pipe 18 is pressed into the sealing ring 52, and a pressure gauge 1 is arranged in the fluid pressure machine 40 by installing a screw 36 under the state of sealing the outer peripheral surface of the pressure guide pipe and the inner peripheral wall surface of the port 51.
Description
The present invention relates to a kind of installing mechanism, this installing mechanism is installed on Bourdon tube pressure gauge on the fluid pressure pressure machines such as pressure control valve.
As the Bourdon tube pressure gauge that can simply, easily be installed on the pressure control valve, for example, the pressure gauge of real fair 5-No. 39471 communiques record is arranged.This pressure is counted a kind of like this pressure gauge: the mapping device of taking in boolean east pipe in the pressure gauge casing and the distortion of boolean east pipe being become pen travel, the casing the inside is covered by lid in the flat board, in this, cover and have the fluid pressure importing port that is communicated with above-mentioned boolean east pipe, and around this port, set the sealing of " O " shape simultaneously.
And, when above-mentioned Bourdon tube pressure gauge is installed on pressure control valve, above-mentioned manometric in the lid be formed at this pressure control valve on the Plane Installation face contact, the piezometry that forms on this installed surface is pressed to import with the above-mentioned fluid of port and Li Gai and is communicated with port, " O " shape O-ring seal is installed between above-mentioned two ports, in this state, with mounting screw pressure gauge is installed and fixed with pressure control valve and be in the same place.
But, in the above-mentioned known installation method, above-mentioned " O " type sealing is pressed in big pressure in the pressure gauge between the lid and pressure control valve with the screwing force of mounting screw, its sealing property of competence exertion like this, so, when the screwing force of above-mentioned mounting screw dies down, also or this mounting screw vibration and under the situation such as loosening, the sealing of above-mentioned " O " type sealing is just insufficient, or escape of liquid, can not measure pressure, the pressure control that influence is produced by pressure control valve.
The object of the present invention is to provide a kind of installing mechanism of Bourdon tube pressure gauge, this mechanism can positively keep sealing to be in sealing state with the screwing force of mounting screw irrespectively, always.
For achieving the above object, installing mechanism of the present invention comprises: be installed on the connecting pipe on the Bourdon tube pressure gauge, pilot end one end is communicated with boolean east pipe, and the other end is outstanding from this manometric back side; O-ring seal, the piezometry that is equipped on fluid press device is with in the port, and internal diameter is littler than above-mentioned connecting pipe diameter, when this connecting pipe is pressed into it when inner, can seal up between the internal perisporium face with the outer peripheral face of this conduit and port; Mounting screw inserts at above-mentioned connecting pipe under the state of above-mentioned O-ring seal, with above-mentioned pressure fixing on fluid press device.
Below, in conjunction with figure embodiments of the invention are described.Wherein,
Fig. 1: the exploded perspective view of pressure gauge one embodiment.
Fig. 2: the exploded perspective view of the major part of the casing of Fig. 1 of seeing of direction and interior mounting mechanism from the negative.
Fig. 3: the front enlarged drawing at the main position of casing.
Fig. 4 (A), (B): the section amplification figure at main position when casing is in installment state with lid.
Fig. 5: the section amplification figure at main position when back veneer and casing are in the backstop state.
Fig. 6: the mounting screw of casing is inserted the main position section amplification figure of logical part.
Fig. 7: the sectional view that the manometric pressure control valve of Fig. 1 of the present invention is installed.
Fig. 8: along the sectional view of the one VIII line of VIII among Fig. 7.
Fig. 9: the enlarged drawing of major part among Fig. 8.
Fig. 1 is that pressure gauge 1 has casing 2 according to the exploded view of an embodiment of Bourdon tube pressure gauge involved in the present invention, the interior mounting mechanism 3 that can freely pick and place in casing 2, the whole front of covering casing 2, loading and unloading protecgulum 4 freely.
Above-mentioned casing 2 is seen from the dead ahead roughly to be square.As can be seen from Figure 2, portion is except that a diagonal angle wherein within it, and other position is provided with rounded heavy section 5, has so just formed: in order to put into above-mentioned mounting mechanism 3, the rounded portion that puts into 6 roughly.Formed than the above-mentioned a little bit smaller annular shape of portion's 6 diameters of putting in the front of above-mentioned casing 2 and to have represented pin installing component 7, the part that this expression pin installation portion 7 is enclosed has constituted the fenestra 8 of seeing scaleplate 20.Above-mentioned casing 2 is all made one by synthetic resin.
A plurality of pointers 28 of the expression hydrodynamic pressure scope of using are housed on above-mentioned pointer installing component 7.This pointer 28 is made by good springiness such as synthetic resin or rubber and material that preferably friction factor is also big, and installs by flexibly blocking leading edge 7a and trailing edge 7b both sides, like this, makes its removable optional position that is adjusted to.
The rearward end of above-mentioned wall thickness 5 forms step 9 than casing 2 sidewall rearward end slightly more like this between the sidewall rearward end of heavy section 5 and casing 2, just in time put the bonnet 16 of the back of blocking this housing 2 here.
As can be known from Fig. 6, the position, a pair of diagonal angle on above-mentioned casing 2 is respectively arranged with screw and inserts through hole 11 on the position of wall thickness 5, be pressed into metal tube 10 simultaneously therein again respectively.At the front end of above-mentioned each screw hole 11, be provided with head 36a for mounting screw 36 and imbed wherein counterbore 11a.
As can be seen from Figure 3, another of the front of above-mentioned casing 2 to across corner, be positioned at the outside of fenestra 8, form circular-arc mounting hole 13, this hole is made up of wide width part 13a and narrow width part 13b, use for protecgulum 4 is installed.
In the front of above-mentioned casing 2, between counterbore 11a and mounting hole 13, form a plurality of circular-arc locating slots 14 in addition.
Mounting mechanism 3 has following member in above-mentioned: the square-shaped metal bonnet 16 that covers the back of casing 2; One end is fixed in this bonnet 16 and manages 17 as the circular-arc boolean east of pressure-bearing means; Air pressure is imported this boolean east manage 17 interior conduits 18 (referring to Fig. 2); And mapping device (figure slightly), this mechanism can become moving of pointer 19 with the deformation transformation of above-mentioned boolean east pipe 17, by scaleplate 20 this amount of movement is showed.One end of above-mentioned conduit 18 is at boolean's east pipe 17 inner openings, and the other end is that to pass bonnet 16 airtightly outstanding to the outside.So in a single day the air pressure by conduit 18 effects make the pipe distortion of boolean east, just can convert thereof into moving of pointer 19,, just air can be pressed to read out according to the scale on the scaleplate 20.
In a pair of across corner in above-mentioned bonnet 16, form the inserting hole 23 that can insert mounting screw 36 respectively; And in another group across corner, formed installation sheet 25 respectively by grooving 24.The head of this installation sheet 25 to casing 2 bendings, has stopper section 26 at its head slightly, and as shown in Figure 5, behind the backstop hole 12 that this stopper section 26 embeds in the casing 2, but with regard to backstop, interior like this mounting mechanism 3 just can be installed in the portion that puts into 6 of casing 2, and can take off once more.
Replace the inserting hole 23 that is provided with on the above-mentioned bonnet 16, the position that also can excise the inserting hole 23 on this bonnet 16.Only need this moment the length of aforementioned tube 10 is prolonged, its prolongation amount is the thickness of bonnet, the fixation pressure timing, and the direct and fluid press device of the head of this pipe 10 joins.
Above-mentioned protecgulum 4 is that made by transparent plastic and squares casing 2 front similar shapes, and circle perspective portion 33, the arrow that also have expression loading and unloading gyratory directions and the expression portion 34 of explanatory note corresponding with the fenestra 8 of casing 2 are arranged above it.Except perspective portion 33 and expression portion 34, it is homochromy with casing 2 that the other parts pigmentable becomes, perhaps by hair sideization, with its opacification.
Above-mentioned expression portion 34 be positioned at corresponding on a pair of across corner, have on the position of above-mentioned each screw hole 11.To the head 36a that is coloured to brown or black and is positioned the mounting screw 36 in heavy mouthful of 11a of spiral shell is background, then can clearly transparent expression portion 34 be discerned and read out.
From Fig. 4 (A), (B) as can be known: on the position, one group of diagonal angle at the back side of above-mentioned protecgulum 4, be provided with the mounting hole 13 that can insert respectively on the casing 2, and make it several stop tab 31 of backstop; Several convex (not shown)s that are embedded in gathering sill 14 have also been designed simultaneously.In above-mentioned each stop tab 31 pawl 32 is arranged, this backstop limit 31 is by wide width part 31a, after embedding mounting hole 13, above-mentioned protecgulum 4 is turned round towards the direction of narrow width part 13b along the circular arc of mounting hole 13, above-mentioned pawl 32 will be on the peritreme of this narrow width part 13b backstop, this protecgulum 4 has just installed with casing 2 like this.
As shown in Figure 5, the pressure gauge 1 of following mechanism is arranged just by following method assembling.Be installed on the interior mounting mechanism 3 of back on the plate 16 and be inserted into the portion that puts into 6 on the casing 2, then, make backstop in each the backstop hole 12 on casing 2, stopper section 26 of each installation sheet 25 on the above-mentioned back veneer 16, interior like this mounting mechanism 3 just is assembled on the casing 2.
If make above-mentioned sidewall distortion of putting into portion 6 slightly, the backstop that so above-mentioned stopper section 26 and backstop hole are 12 just is disengaged, and at this moment, back veneer 16 and interior mounting mechanism 3 just can take out from casing 2.
Next, mounting screw 36 is installed above-mentioned protecgulum 4 in the front of casing 2 after inserting the pipe 10 that is loaded on the above-mentioned casing 2 from the front of casing 2, can install pressure gauge 1 like this.
At this moment because the head 36a of above-mentioned mounting screw 36 is sunken in the mounting hole 11a, when protecgulum 4 is installed, this screw head 36a also has no relations.In addition, above-mentioned protecgulum has been installed after because protecgulum 4 covered above-mentioned screw counter bore 11a, so above-mentioned mounting screw 36 will can not come off from casing 2.Like this, pressure gauge 1 is in conveying or when taking out from case at the scene, and phenomenons such as the loss that comes off of above-mentioned mounting screw 36 will no longer take place, and it is also just easy to operate.
In addition, the transparent expression portion 34 of above-mentioned protecgulum 4 is positioned on the position that counterbore 11a correspondence is installed, because the head 36a of the mounting screw 36 that can see painted, this expression portion 34 can clearly read out.
Above-mentioned pressure gauge 1 is contained on the suitable fluid press device such as pressure control valve or fluid pressure actuator and uses.Fig. 7-Figure 9 shows that such Bourdon tube pressure gauge is contained in as the behaviour in service on the pressure control valve 40 of fluid press device one side.
As seen from Figure 7, this pressure control valve 40 has pressure fluid input port P, output port A and is formed at valve seat 41 in the stream of these ports that are interconnected.The valve body 42 that opens and closes this valve seat 41 is pressed to the direction of closing valve seat 41 by the pressure of spring 43.The feedback cavity 46 that is marked by dividing plate 45 is communicated with delivery outlet A by feedback stream 47, in dividing plate 45 is that mark and feedback cavity 46 is relative cavity, acts on the pressure regulating spring 48 that elasticity adjusting is arranged.
In addition, from Fig. 8, Fig. 9 as can be seen, above-mentioned pressure control valve 40 has the piezometry port 51 of fixing the manometric installation portion 50 in above-mentioned boolean east, being opened on this installation portion 50 and being communicated with feedback cavity 46 with above-mentioned mounting screw 36.Be equipped with circular O-ring seal 52 in port 51 in this piezometry.The internal diameter of this O-ring seal 52 is littler than the external diameter of above-mentioned connecting pipe 18, by above-mentioned connecting pipe 18 is pressed into its inside, with the outer peripheral face of the inner peripheral surface sealing connecting pipe 18 of O-ring seal, measures internal perisporium face with port 51 with the outer peripheral face sealing load of O-ring seal.
When being installed on above-mentioned Bourdon tube pressure gauge on the above-mentioned pressure control valve 40, the inside of this pressure gauge 1 is contacted with above-mentioned installation portion 50, to cover 16 outstanding above-mentioned connecting pipes 18 from the lining inserts the above-mentioned O-ring seal 52, take off the protecgulum 4 of this pressure 1, mounting screw 36 is screwed into the screw hole of installation portion 50, and then cover protecgulum 4, can finish the installation of pressure gauge 1.
Therefore, in pacifying intact Bourdon tube pressure gauge 1, the air pressure of pressure control valve 40 flows into boolean east with port 51 by connecting pipe 18 from above-mentioned piezometry and manages 17, makes this boolean east pipe distortion.And this distortion is transformed into moving of pointer by mapping device, by this pointer pressure is shown on the scaleplate 20.
Here, above-mentioned O-ring seal 52 is the sealing outer peripheral face of above-mentioned connecting pipe 18 and piezometry with the hermetically-sealed construction between the port 51 internal perisporium faces, rather than O-ring seal 52 is pressed in hermetically-sealed construction between the installation portion 50 of lid 16 and fluid press machine in the pressure gauge with very big pressure in the known example.So, the screwing force of above-mentioned sealing state and mounting screw 36 is irrelevant, the power of tightening this mounting screw 36 is enough to fixation pressure meter 1 and as the power of compresses seal 52 also hour, when perhaps above-mentioned mounting screw being unclamped because of vibration, sealing property can be do not reduced, fine sealing state can be guaranteed to be in always.
And, because lid 16 and the surface planarity of installation portion 50 are not high precision very in requiring, so process simply.
Also have, in the illustrated embodiment, formed 2 groups of installation portions and piezometry port 51 on the pressure control valve 40, pressure gauge has been installed by one side, the other end is shut with stopper 54, but only forms one group of installation portion 50 and piezometry also can with 51 on above-mentioned operation valve 40.
Claims (1)
1. the manometric mounting structure in boolean east, the deformation transformation of boolean east pipe is become moving of pointer, and then pressure representative is installed at the pressure gauge on the scaleplate has piezometry with on the fluid press device of port, above-mentioned boolean east pipe and piezometry are interconnected with port, in this installing mechanism, it is characterized in that having: be installed on the connecting pipe on the Bourdon tube pressure gauge, an end of connecting pipe is communicated with boolean east pipe, and the other end is outstanding from this manometric back side;
O-ring seal, the piezometry that is equipped on fluid machine is with in the port, and internal diameter is littler than above-mentioned connecting pipe diameter, when this connecting pipe is pressed into it when inner, can seal up between the internal perisporium with the outer peripheral face of connecting pipe and port;
Mounting screw inserts at above-mentioned connecting pipe under the state of above-mentioned O-ring seal, and above-mentioned pressure gauge is fixed on the fluid machine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6224311A JPH0862072A (en) | 1994-08-25 | 1994-08-25 | Fitting mechanism for bourdon pressure gage |
| JP224311/94 | 1994-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1129802A true CN1129802A (en) | 1996-08-28 |
Family
ID=16811776
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95116677A Pending CN1129802A (en) | 1994-08-25 | 1995-08-24 | Mounting mechanism for bourdon tube pressure gauge |
| CN95222503U Expired - Lifetime CN2243072Y (en) | 1994-08-25 | 1995-08-24 | Pressure gauge with pressure-range indicating pointer |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95222503U Expired - Lifetime CN2243072Y (en) | 1994-08-25 | 1995-08-24 | Pressure gauge with pressure-range indicating pointer |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH0862072A (en) |
| KR (1) | KR0163227B1 (en) |
| CN (2) | CN1129802A (en) |
| DE (1) | DE19530001A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393839A (en) * | 2020-11-17 | 2021-02-23 | 李健民 | Air pump pressure gauge with pressure adjusting function |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308249A (en) * | 2013-06-26 | 2013-09-18 | 姚朝阳 | Pressure gauge |
| CN106438551B (en) * | 2016-08-25 | 2018-01-05 | 浙江工业大学 | Bourdon tube force feedback type 2D Electric hydraulic pressure servo valves |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4279161A (en) * | 1979-08-08 | 1981-07-21 | Huston Paul O | Gauge |
| US4773271A (en) * | 1986-01-24 | 1988-09-27 | Ckd Kabushiki Kaisha | Bourdon gage |
-
1994
- 1994-08-25 JP JP6224311A patent/JPH0862072A/en active Pending
-
1995
- 1995-08-16 DE DE19530001A patent/DE19530001A1/en not_active Withdrawn
- 1995-08-23 KR KR1019950026143A patent/KR0163227B1/en not_active IP Right Cessation
- 1995-08-24 CN CN95116677A patent/CN1129802A/en active Pending
- 1995-08-24 CN CN95222503U patent/CN2243072Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112393839A (en) * | 2020-11-17 | 2021-02-23 | 李健民 | Air pump pressure gauge with pressure adjusting function |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19530001A1 (en) | 1996-02-29 |
| JPH0862072A (en) | 1996-03-08 |
| KR960008286A (en) | 1996-03-22 |
| KR0163227B1 (en) | 1999-03-30 |
| CN2243072Y (en) | 1996-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |