CN1515887A - Diaphragm combination structure for pressure gauge - Google Patents
Diaphragm combination structure for pressure gauge Download PDFInfo
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- CN1515887A CN1515887A CNA03114764XA CN03114764A CN1515887A CN 1515887 A CN1515887 A CN 1515887A CN A03114764X A CNA03114764X A CN A03114764XA CN 03114764 A CN03114764 A CN 03114764A CN 1515887 A CN1515887 A CN 1515887A
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- ring
- diaphragm
- oil
- seal ring
- gauge
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Abstract
The present invention relates to a diaphragm combining structure of pressure gauge. On the pressure gauge seat and pressure gauge head the correspondent ring curved groove is made respectively, the curvalure of two ring curved grooves is correspondent to the oil seal ring of peripheral side of diaphragm of pressure gauge and every ring curved groove can be connected with mounting surface of pressure gauge seat and pressure gauge head by utilizing curved angle. The adoption of said invention can make the oil seal ring of pressure gauge diaphragm be forced uniformly and stably, and the curved angle of every ring curved groove can protect the oil seal ring against scuffing.
Description
Technical field
The present invention relates to a kind of manometric diaphragm combined structure.
Background technology
Because modern's living standard day by day improves, quality requirements for various industrial products is also more and more high, and industrial measuring tool directly influences degree of accuracy, the accuracy of product especially, wherein, the measurement accuracy of various gaging pressure table height, length in serviceable life (durability) are the problems of overriding concern before the buyer chooses.Therefore, for manometric manufacturing person, how to develop tensimeter product and be most important design objective when manufacturing with above-mentioned functions; And the problem that is presented in the foregoing motivation of the present invention research and development just.
General common on the market at present tensimeter comprises a gauge stand 10, a gauge outfit 11 and a diaphragm 12 as shown in Figure 1.This gauge stand 10 and gauge outfit 11 are relative screw lock state, and are formed with annular recess square groove 13 at the two relative joint face, and are equipped with the cylindric oil-seal ring 14 of corresponding depression square groove 13 in these diaphragm 12 perimeter sides.Use the pull oil-seal ring 14 of compressing diaphragm 12 of depression square groove 13 folder of this gauge stand 10 and gauge outfit 11, make sealing between this gauge stand 10 and the gauge outfit 11, and this diaphragm 12 can cooperate the transition activities of gauge stand 10 internal pressures, and then allows gauge outfit 11 interior indication mechanisms occur changing.Said structure uses for a long time in the scale industry, and its major defect is:
One, existing tensimeter adopts depression square groove 13 folders to pull and oppresses the oil-seal ring 14 of diaphragm 12, though this kind mode can reach the effect of sealing, but, as fabricator during in the relative screw lock work of carrying out this gauge stand 10 and gauge outfit 11, on, two depression square grooves 13 are to contact spinning on this oil-seal ring 14 with wire down, lower extreme point (referring to shown in Figure 2), and the pressure on this contact pressure line is also inconsistent, so can cause depression square groove 13 oil-seal rings 14 with unbalanced pressure spinning diaphragm 12, and then make oil-seal ring 14 produce small torsional deformation, in addition, for diaphragm 12, the small distortion of this oil-seal ring 14 can cause the distortion of diaphragm 12, action when making diaphragm 12 pressurizeds is not normal, the distortion as a result that causes tensimeter to measure.Therefore what manometric measurement effect was subjected to this gauge stand 10 and gauge outfit 11 easily revolves the lock stress influence.
Two, existing manometric depression square groove 13 and be provided with and have a sharp keen corner cut 15 between face; when the user utilizes upper and lower two depression square grooves 13 to press from both sides the oil-seal ring 14 of the compressing diaphragm 12 of pulling; the oil-seal ring 14 that decreases diaphragm 12 is scraped by these corner cut 15 regular meetings in the process of revolving lock; make manometric oil-seal ring 14 produce the problem of seals damaged, can only change diaphragm 12 again.
Three, existing manometric relative depression square groove 13 width are usually greater than oil-seal ring 14, when the user utilizes upper and lower two depression square grooves 13 to press from both sides the oil-seal ring 14 of the compressing diaphragm 12 of pulling, owing to revolve the lock stress influence, oil-seal ring 14 meetings slippage in the groove width of upper and lower two depression square grooves 13 of this diaphragm 12, not only influence manometric sealing effectiveness, and make diaphragm 12 no longer have preferable peripheral equilibrium stress.
Summary of the invention
Technical matters to be solved by this invention provides a kind of manometric diaphragm combined structure, and it can make the oil-seal ring of diaphragm be subjected to average, stable compressing, and can prevent the scratch oil-seal ring.
For solving the problems of the technologies described above, manometric diaphragm combined structure of the present invention comprises a gauge stand, a gauge outfit, a diaphragm, and described gauge stand is the tubulose pedestal that is provided with inner hollow diameter, and is provided with one in one end system face is set; Described gauge outfit also is provided with inner hollow diameter, and is provided with one in an end system of the corresponding described gauge stand of this gauge outfit face is set; Described diaphragm correspondence is arranged between the inner hollow diameter of described gauge stand and gauge outfit, is provided with the oil-seal ring of cylindrical toroidal in this diaphragm perimeter sides one system; Wherein, corresponding ring-type arc groove is set on described gauge stand and top-of-form set face, the slick and sly arc angle of two ring-type arc grooves utilization circumferential edges connects the face that is provided with of gauge stand and gauge outfit, can keep one after the combination of two ring-type arc grooves and press from both sides the space of pulling, described oil-seal ring correspondence is contained in the two ring-type arc grooves, and the circle footpath of this oil-seal ring is greater than this folder space of pulling; In addition, the curvature of this oil-seal ring is corresponding to ring-type arc groove.
Owing to adopt above-mentioned combined structure, the oil-seal ring of two ring-type arc groove curvature corresponding pressure table perimeter sides, this oil-seal ring can be subjected to average, stable compressing, and this ring-type arc groove can be in compressing the guiding oil-seal ring, reach the effect that compressing is stable, sealing is certain.In addition, two ring-type arc grooves utilization arc angle connects the face that is provided with of pressure gauge stand and gauge outfit, can prevent the scratch oil-seal ring, improves life of product.
Description of drawings
Fig. 1 is the view sub-anatomy of prior art;
Fig. 2 is the prior art constructions partial schematic diagram;
Fig. 3 is a STRUCTURE DECOMPOSITION cut-open view of the present invention;
Fig. 4 is a textural association cut-open view of the present invention;
Fig. 5 is a stress synoptic diagram of the present invention.
Embodiment
Shown in Fig. 3,4, the present invention is made of jointly members such as a gauge stand 20, a gauge outfit 30 and diaphragms 40, wherein:
This gauge stand 20 is the tubulose pedestals that are provided with external thread 21 and inner hollow diameter 22.Be provided with one in the wherein end system of this gauge stand 20 face 23 is set, and be provided with at this and offer ring-type arc groove 24 on face 23, and the slick and sly arc angle 25 of these ring-type arc groove 24 utilization circumferential edges connects the face that is provided with 23 of these gauge stands 20.
This gauge outfit 30 is the bodys that are provided with internal thread 31, inner hollow diameter 32 and measure member 36.This inner hollow diameter 32 is connected with its measurement member 36, these internal thread 31 corresponding spiral shells are joined the external thread 21 of this gauge stand 20, this inner hollow diameter 32 is then to inner hollow diameter 22 that should gauge stand 20, end system that should gauge stand 20 30 pairs of this gauge outfits is provided with one face 33 is set, and is provided with at this and offers ring-type arc groove 34 on face 33.This ring-type arc groove 34 is corresponding with the ring-type arc groove 24 of this gauge stand 20, and the slick and sly arc angle 35 of these ring-type arc groove 34 utilization circumferential edges connects the face that is provided with 33 of this gauge outfit 30.And this ring-type arc groove 34 can reservation one press from both sides the space 37 of pulling after making up with ring-type arc groove 24.
These diaphragm 40 correspondences are provided with between the inner hollow diameter 22 of the inner hollow diameter 32 of this gauge outfit 30 and this gauge stand 20.Be provided with the oil-seal ring 41 of cylindrical toroidal in this diaphragm 40 perimeter sides one system, and in the ring-type arc groove 24 of the ring-type arc groove 34 that these oil-seal ring 41 correspondences are contained in this gauge outfit 30 and this gauge stand 20, and the circle footpath of this oil-seal ring 41 is slightly larger than this folder space 35 of pulling.The curvature of this oil-seal ring 41 is same as ring-type arc groove 34 and ring-type arc groove 24 in addition.The above is the mutual relationship position of each associated component of the present invention and the general introduction of structure thereof.
For the present invention is described in further detail, can be referring to stress synoptic diagram shown in Figure 5.Diaphragm of the present invention 40 corresponding envelopes are located at 22 of the inner hollow diameter of the inner hollow diameter 32 of this gauge outfit 30 and this gauge stand 20, so the pressure variation meeting of the inner hollow diameter 22 of gauge stand 20 passes to the inner hollow diameter 32 of this gauge outfit 30 by this diaphragm 40, and the inner hollow diameter 32 of this gauge outfit 30 connects and influences its measurement member 36.
Because in the ring-type arc groove 34 that oil-seal ring 41 correspondences of the present invention are contained in this gauge outfit 30 and the ring-type arc groove 24 of this gauge stand 20, and the circle footpath of this oil-seal ring 41 is slightly larger than this folder space 37 of pulling, so oil-seal ring 41 of the present invention sealing really, and the curvature of this oil-seal ring 41 is same as ring-type arc groove 34 and ring-type arc groove 24, therefore, gauge outfit 30 of the present invention and gauge stand 20 are when relative screw lock, the spinning stress that this oil-seal ring 41 is subjected on average is dispersed in the cylindrical toroidal surface of this oil-seal ring 41, and the cylinder ring of this oil-seal ring 41 is not easy to be subjected to excessive concentrated spinning stress, also be not easy to produce torsional deformation, and when being subjected to spinning stress, this oil-seal ring 41 can or not do not produced and be out of shape torsion improperly by curvature identical ring-type arc groove 34 and 24 guidings of ring-type arc groove.In like manner, diaphragm 40 of the present invention also be subjected to 41 sealings of this oil-seal ring really, stress equilibrium auxiliary, cause the pressurized reaction of this diaphragm 40 truer, and it is more accurate that this diaphragm 40 passes to the distortion meeting of measurement member 36 of this gauge outfit 30, so the present invention is a kind of manometric diaphragm combined structure stable, that sealing is certain of oppressing really.
What deserves to be mentioned is, there is no sharp-pointed structure between gauge stand 20 of the present invention and gauge outfit 30 and this oil-seal ring 41.The slick and sly arc angle 25 of the ring-type arc groove 24 utilization circumferential edges of this gauge stand 20 connects this face 23 is set, the ring-type arc groove 34 of this gauge outfit 30 also is that the slick and sly arc angle 35 of utilization circumferential edges connects this face 33 is set, so the present invention carry out 30 of gauge stand 20 and gauge outfits revolve locking bit the time, this oil-seal ring 41 can not be subjected to scraping damage, so the present invention can possess the sealing effectiveness that fills part.
Claims (1)
1. a manometric diaphragm combined structure comprises a gauge stand, a gauge outfit, a diaphragm, and described gauge stand is the tubulose pedestal that is provided with inner hollow diameter, and is provided with one in one end system face is set; Described gauge outfit also is provided with inner hollow diameter, and is provided with one in an end system of the corresponding described gauge stand of this gauge outfit face is set; Described diaphragm correspondence is arranged between the inner hollow diameter of described gauge stand and gauge outfit, is provided with the oil-seal ring of cylindrical toroidal in this diaphragm perimeter sides one system; It is characterized in that: offer corresponding ring-type arc groove on described gauge stand and top-of-form set face, two ring-type arc grooves use the slick and sly arc angle of circumferential edges to connect the face that is provided with of gauge stand and gauge outfit, can keep one after the combination of two ring-type arc grooves and press from both sides the space of pulling; Described oil-seal ring correspondence is contained in the two ring-type arc grooves, and the circle footpath of this oil-seal ring is greater than this folder space of pulling; In addition, the curvature of this oil-seal ring is corresponding to ring-type arc groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03114764XA CN1515887A (en) | 2003-01-07 | 2003-01-07 | Diaphragm combination structure for pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA03114764XA CN1515887A (en) | 2003-01-07 | 2003-01-07 | Diaphragm combination structure for pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1515887A true CN1515887A (en) | 2004-07-28 |
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ID=34239381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA03114764XA Pending CN1515887A (en) | 2003-01-07 | 2003-01-07 | Diaphragm combination structure for pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1515887A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104024817A (en) * | 2011-12-28 | 2014-09-03 | Posco公司 | Sensor device and cooling system performance evaluation apparatus comprising same |
| JP2017083180A (en) * | 2015-10-22 | 2017-05-18 | 日本電産トーソク株式会社 | Oil pressure switch |
-
2003
- 2003-01-07 CN CNA03114764XA patent/CN1515887A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104024817A (en) * | 2011-12-28 | 2014-09-03 | Posco公司 | Sensor device and cooling system performance evaluation apparatus comprising same |
| CN104024817B (en) * | 2011-12-28 | 2016-09-07 | Posco公司 | Sensor device and include its capability evaluating device of cooling device |
| JP2017083180A (en) * | 2015-10-22 | 2017-05-18 | 日本電産トーソク株式会社 | Oil pressure switch |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| 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 |