CN104236784B - A kind of Pressure gauge - Google Patents
A kind of Pressure gauge Download PDFInfo
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- CN104236784B CN104236784B CN201410344095.9A CN201410344095A CN104236784B CN 104236784 B CN104236784 B CN 104236784B CN 201410344095 A CN201410344095 A CN 201410344095A CN 104236784 B CN104236784 B CN 104236784B
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- retainer
- drive link
- pressure gauge
- inner shell
- shell
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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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention relates to a kind of Pressure gauge, including watchcase, graduated disc, pointer and transformational structure, the bottom of watchcase has introduction hole；It is characterized in that: transformational structure includes drive link, axial constraint is in watchcase and can rotate around own axes, and drive link is provided with the upper end of transmission external screw thread, pointer and drive link and fixes；Retainer, is arranged in watchcase and can move up and down, retainer can under air pressure drives on move, retainer has bullport, drive link is located in bullport, and the hole wall of bullport is provided with the transmission female thread coordinated with transmission external screw thread；Support spring, act on retainer and make retainer keep moving down trend.Transformational structure advantages of simple in this Pressure gauge, and threaded engagement transmission has good transmission stability so that Pressure gauge anti seismic efficiency is good, without complicated lever construction or gear structure, therefore Pressure gauge can do only small, the simple in construction of each parts, matching relationship is few, and cost is substantially reduced.
Description
Technical field
The present invention relates to a kind of Pressure gauge in order to detected air pressure.
Background technology
Pressure gauge operation principle is by the elastic deformation of the sensing element (Bourdon tube, bellows, corrugated tube) in table, then is conducted pressure deformation to pointer by the shifter of movement in table, causes indicators turn to show pressure.Bourdon tube (Bourdon tube) is divided into the patterns such as type pipe, convolute elastic tube, serpentine pipe, is generally adopted flow harden section bar material base pipe, has significantly high plasticity in annealed state, obtains significantly high elasticity and intensity after pressure processing flow harden and qualitative process.Bourdon tube, under chamber pressure effect, utilizes the elastic characteristic that it has, it is possible to easily by elastic displacement that pressure transition is bourdon tube free end.It is be with wavy circular film that the measurement scope of bourdon tube is typically in diaphragm sensor, and diaphragm side is subject to measuring the pressure of medium, and slight curves deformation produced by such diaphragm can be used to indirectly measure the pressure of medium, and the size of pressure is shown by pointer.Diaphragm its transmission power compared with Bourdon tube is relatively big, owing to the surrounding edge of diaphragm own is fixed, so its vibrationproof is better.Diaphragm manometer can reach significantly high overvoltage protection (such as membrane attaching is on upper flange plate); diaphragm can also add that protective coating is to improve anti-corrosive properties; viscosity is very big, uncleanly and the medium of crystallization to utilize the measures such as opening flange, flushing, opening can measure with diaphragm manometer, and the pressure measurement range of diaphragm manometer is at 1600Pa～2.5MPa.
Pressure gauge mainly has capsule pressure gauge, spring Pressure gauge, bellows manometer, shock-proof pressure gauge, digital pressure gauge etc. several.
The structure master of capsule pressure gauge is more made up of bellows and linkage magnification system's two parts.The box-like pressure element of circle that bellows is made up of a kind of alloy, after bearing pressure change, it swollen can rise or shrink and be subjected to displacement, and through transmission and amplification lever system, makes pointer indicate the numerical value of tested minute-pressure or tiny structure on flute profile graduated disc.Capsule pressure gauge can also band electric contact to realize control and defencive function.
The structure of Bourdon tube pressure gauge, the Chinese utility model patent " micro-bourdon tube pressure gauge " if a patent No. is ZL200920199778.4 (notification number is CN201527321U) just discloses such a spring-tube pressure list structure.In circular shell, there is the spring tube bending (conventional unit seam phosphor-copper pipe or seamless steel pipe are made) of a section ovalize (oval major axis is paralleled) with the central shaft of indicator, its one end is fixing end, the other end is the free end closed, free end is connected with connecting rod, the other end of connecting rod is sector gear, and sector gear is connected mutually with the little gear on central shaft, and manometric pointer is fixing on center shaft.When being subject to the pressure of medium (such as gas) in special bourdon tube, its free end will be made to be displaced outwardly, drive sector gear and pinion rotation then through connecting rod, make pointer rotate an angle clockwise.The pressure of medium is more big, and indicators turn angle is also more big.At this moment the scale value that pointer indicates on Pressure gauge dial plate, it is simply that the numerical value of surveyed air pressure.When pressure decreases, spring tube bending can shrink inwards, makes pointer return to corresponding position.When, after distress resolves, spring tube bending returns to original shape, the effect by hairspring helps, and pointer returns to initial point (zero-bit).Bourdon tube pressure gauge has the advantages such as compact conformation, degree of accuracy is higher, measurement scope is wide, easy to use, is used for measuring the pressure medium value in drum, header and pipeline.
Existing pressure meter structure is complicated because of its running part structure, cause that Pressure gauge volume is bigger, and material requirements and the accuracy of manufacture are required all higher, cause that cost remains high, and lever or gear transmission structure anti seismic efficiency extreme difference, this Pressure gauge falls its lever or geared portions on bottom surface and will damage.
Summary of the invention
The technical problem to be solved be provide for above-mentioned prior art present situation that a kind of shockproof drop resistant, cost be low, simple in construction and the little Pressure gauge of volume.
This invention address that the technical scheme that above-mentioned technical problem adopts is: a kind of Pressure gauge, including watchcase, be placed in the graduated disc in watchcase, pointer and by pressure deformation conduction to pointer to cause the transformational structure of indicators turn, the bottom of watchcase has and is introduced by ambient pressure and act on and the introduction hole of transformational structure；It is characterized in that: described transformational structure includes drive link, axial constraint is in watchcase and can rotate around own axes, and drive link is provided with the upper end of transmission external screw thread, described pointer and drive link and fixes；Retainer, be arranged in watchcase and can move up and down, retainer can under the air pressure introduced from introduction hole drives on shifting, retainer has bullport, described drive link is located in bullport, and the hole wall of bullport is provided with the transmission female thread coordinated with described transmission external screw thread；Support spring, act on retainer and make retainer keep moving down trend.
For ease of the processing and forming of retainer, the bullport on above-mentioned retainer is perforation, and the bottom of bullport is provided with base plate and covers, and the upper surface of this base plate contacts with the bottom surface of retainer.Certain bullport is alternatively blind hole, namely base plate one-body molded with retainer together with, but its processing inconvenience.
The upper cover that above-mentioned watchcase is made up of shell, inner shell and transparent material forms, inner shell is embedded in the enclosure, retainer is located in the cavity of inner shell, graduated disc is shelved on the upper surface of inner shell, and the covered upper cover compacting being located at shell upper end open place, the lower end of described drive link is located in described bullport after inner shell, described support spring is positioned at the cavity of inner shell, the upper end supporting spring is bearing on the roof of cavity of inner shell, the lower end supporting spring is supported on retainer, and described introduction hole is arranged on the bottom of shell.This meter casing structure is easy to manufacture, and is easy to assemble each parts in watchcase.
The upper surface of above-mentioned inner shell has the ladder hole communicated with inner shell cavity, the top of described drive link has end difference, the lower end of described drive link is located in described bullport after the ladder hole of inner shell, meanwhile, the end difference on described drive link is shelved on the bottom surface in macropore portion of ladder hole.The gear pairing drive link of the end difference on ladder hole and drive link has axial constraint effect, it is ensured that under ambient pressure effect, drive link can only rotate along own axes and can not move up and down.
State watchcase by shell, the upper cover composition that inner shell and transparent material are made, inner shell is embedded in the enclosure, retainer is located in the cavity of inner shell, described graduated disc is shelved on the upper surface of inner shell, and the covered upper cover compacting being located at shell upper end open place, the upper surface of described inner shell has the ladder hole communicated with inner shell cavity, the top of described drive link has end difference, the lower end of described drive link is located in described bullport after the ladder hole of inner shell, simultaneously, end difference on described drive link is shelved on the bottom surface in macropore portion of ladder hole, described support spring is positioned at the cavity of inner shell, the upper end supporting spring is bearing on the roof of cavity of inner shell, the lower end supporting spring is supported on retainer, described introduction hole is arranged on the bottom of shell.Simultaneously
Having the pointed cone portion raised up on the end face of above-mentioned drive link, the inner surface of described upper cover has the bellmouth matched with described pointed cone portion, pointed cone portion is plugged in bellmouth.Bellmouth is had axial constraint effect by pointed cone portion, meanwhile, the rotation of drive link is had guiding function.
Integral piece is formed together with above-mentioned pointer is one-body molded with drive link.
The outer peripheral face of above-mentioned retainer contacts formation hermetic seal with the cavity interior walls of inner shell, and the perisporium of described retainer has axially arranged gathering sill, and the cavity interior walls of described inner shell is provided with axially arranged guiding rib, and guiding rib is plugged in gathering sill and can Relative sliding.The similar piston structure of retainer of this structure, this retainer structure both can guarantee that good hermetic seal, and its cost is low again.
The bottom surface of above-mentioned retainer has the annular groove of indent, and the lateral wall of annular groove forms the tooth portion turned up and contact with the cavity interior walls of inner shell.By the cavity interior walls Elastic Contact in tooth portion Yu inner shell, the hermetic seal effect that the outer peripheral face of retainer and the cavity interior walls of inner shell are formed is more preferably, it is prevented that gas leakage.
Being provided with the breathing sheet that quality of rubber materials is made in above-mentioned shell, this breathing sheet is compressed between shell and inner shell, and described retainer and base plate are shelved on the upper surface breathing sheet.It forms a kind of membrane pressure gage, breathes sheet and plays the effect of conducting pressure, breathes sheet simultaneously and plays hermetic seal effect.
For convenience of Pressure gauge is connected to relevant device, as, on inflator pump, the bottom of above-mentioned shell has the threaded post downwardly extended, described introduction hole is arranged on this threaded post.
nullCompared with prior art，It is an advantage of the current invention that: the transformational structure in this Pressure gauge is mainly made up of drive link and two parts of retainer，And by the threaded engagement between drive link and retainer，Retainer can the air pressure that introduces from introduction hole drive and support under spring effect lower on move，Convert the rotary motion of drive link to，Final drive pointer rotary motion，This transformational structure advantages of simple，And threaded engagement transmission has good transmission stability，Make Pressure gauge anti seismic efficiency good，Even if falling on the ground，Also it is not easy to damage，Additionally，This kind of drive is without complicated lever construction or gear structure，What therefore this Pressure gauge can do is only small，The suitability is strong，Can be put in the valve of pneumatic boat or the handle of hand-pulled inflator uses，Simultaneously，The simple in construction of each parts，Matching relationship is few，Cost is substantially reduced.
Accompanying drawing explanation
Fig. 1 is the perspective view of first embodiment of the invention；
Fig. 2 is the perspective view of retainer in first embodiment of the invention；
Fig. 3 is the sectional view of first embodiment of the invention；
Fig. 4 is the three-dimensional exploded view of first embodiment of the invention；
Fig. 5 is the perspective view of second embodiment of the invention；
Fig. 6 is the sectional view of second embodiment of the invention；
Fig. 7 is the three-dimensional exploded view of second embodiment of the invention；
Fig. 8 is the perspective view of third embodiment of the invention；
Fig. 9 is the sectional view of third embodiment of the invention；
Figure 10 is the three-dimensional exploded view of third embodiment of the invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in figures 1-4, for first embodiment of the present invention.
A kind of Pressure gauge, including watchcase 1, being placed in the graduated disc 2 in watchcase 1, pointer 4 and transformational structure pressure deformation conduction rotated to pointer 4 to cause pointer 4, graduated disc 2 is provided with pressure scale, and the bottom of watchcase 1 has and introduced by ambient pressure and act on and the introduction hole 111 of transformational structure.
Transformational structure includes drive link 3, and axial constraint is in watchcase 1 and can rotate around own axes, and drive link 3 is provided with transmission external screw thread 31, and the pitch of transmission external screw thread 31 is relatively big, and the upper end of pointer 4 and drive link 3 is fixed.
Retainer 5, be arranged in watchcase 1 and can move up and down, retainer 5 can under the air pressure introduced from introduction hole 111 drives on shifting, retainer 5 has bullport 51, drive link 3 is located in bullport 51, and the hole wall of bullport 51 is provided with the transmission female thread 511 coordinated with transmission external screw thread 31.Bullport 51 on retainer 5 is perforation, and the bottom of bullport 51 is provided with base plate 7 and covers, and the upper surface of this base plate 7 contacts with the bottom surface of retainer 5, and base plate 7 can be fixed on the bottom of retainer 5.
Support spring 6, act on retainer 5 and make retainer 5 keep moving down trend, support spring 6 be one special in the spring out of the calculation of pressure required for Pressure gauge.
Watchcase 1 in the present embodiment is by shell 11, the upper cover 13 that inner shell 12 and transparent material are made forms, upper cover 13 can be glass plate, inner shell 12 is embedded in shell 11, retainer 5 is located in the cavity of inner shell 12, graduated disc 2 is shelved on the upper surface of inner shell 12, and the covered upper cover 13 being located at shell 11 upper end open place suppresses, the lower end of drive link 3 is located in described bullport 51 after inner shell 12, spring 6 is positioned at the cavity of inner shell 12, the upper end supporting spring 6 is bearing on the roof of cavity of inner shell 12, the lower end supporting spring 6 is supported on retainer 5, the bottom of shell 11 has the threaded post 112 downwardly extended, introduction hole 111 is arranged on this threaded post 112.
Having the pointed cone portion 33 raised up on the end face of drive link 3, the inner surface of upper cover 13 has the bellmouth 131 matched with pointed cone portion 33, pointed cone portion 33 is plugged in bellmouth 131.Integral piece is formed together with pointer 4 is one-body molded with drive link 3.
The outer peripheral face of the retainer 5 in the present embodiment contacts formation hermetic seal with the cavity interior walls of inner shell 12, the perisporium of retainer 5 has axially arranged gathering sill 52, the cavity interior walls of inner shell 12 is provided with axially arranged guiding rib 122, and guiding rib 122 is plugged in gathering sill 52 and can Relative sliding.The bottom surface of retainer has the annular groove 53 of indent, and the lateral wall of annular groove 53 forms the tooth portion 531 turned up and contact with the cavity interior walls of inner shell 12.The similar piston structure of retainer of this version, this retainer structure both can guarantee that good hermetic seal, and the cost making again product is low.
All parts in the present embodiment can adopt the plastic material of anti-embrittlement to make.
As shown in Fig. 5～7, for second embodiment of the present invention.
The difference of the present embodiment and first embodiment is in that: have the ladder hole 121 communicated with inner shell 12 cavity on the upper surface of inner shell 12, the top of drive link 3 has end difference 32, the lower end of drive link 3 is located in bullport 51 after the ladder hole 121 of inner shell, meanwhile, the end difference 32 on drive link 3 is shelved on the bottom surface in macropore portion of ladder hole 121.Being provided with the breathing sheet 8 that quality of rubber materials is made in shell 11, this breathing sheet 8 is compressed between shell 11 and inner shell 12, and retainer 5 and base plate 7 are shelved on the upper surface breathing sheet 8.It forms a kind of membrane pressure gage, breathes sheet and plays the effect of conducting pressure, breathes sheet simultaneously and plays hermetic seal effect.
In the present embodiment, place's breathing sheet adopts quality of rubber materials to make, and other all parts can adopt the plastic material of anti-embrittlement to make.
As shown in figs. 8-10, for the 3rd embodiment of the present invention.
The difference of this embodiment and second embodiment is in that: the shape of shell 11 and second embodiment are slightly different, and the bottom of shell 11 is not provided with the threaded post 112 downwardly extended, and it is simply provided with external screw thread 113 on the top of shell 11.
Transformational structure in this Pressure gauge is mainly made up of drive link 3 and 5 two parts of retainer, and by the threaded engagement between drive link 3 and retainer 5, retainer 5 can the air pressure that introduces from introduction hole 111 drive and support under spring 6 effect lower on move, convert the rotary motion of drive link 3 to, final drive pointer 4 rotary motion, air pressure greatly then drives the distance moved on retainer 5, the angle that pointer 4 rotates is big, shown scale value is also big, air pressure is little, the distance then moved on retainer 5 is short, the angle that pointer 4 rotates is little, shown scale value is also little, without other state, retainer 5 resets under the effect supporting spring 6, pointer 4 resets, shown scale value is zero.This transformational structure advantages of simple, and threaded engagement transmission has good transmission stability, make Pressure gauge anti seismic efficiency good, it is not necessary to complicated lever construction or gear structure, therefore this Pressure gauge can do only small, the suitability is strong, can be put in the valve of pneumatic boat or the handle of hand-pulled inflator uses, meanwhile, the simple in construction of each parts, matching relationship is few, and cost is substantially reduced.
Claims (10)
1. a Pressure gauge, including watchcase (1), being placed in the graduated disc (2) in watchcase (1), pointer (4) and transformational structure pressure deformation conduction rotated to pointer (4) to cause pointer (4), the bottom of watchcase (1) has and is introduced by ambient pressure and act on and the introduction hole (111) of transformational structure；It is characterized in that: described transformational structure includes
Drive link (3), axial constraint is in watchcase (1) and can rotate around own axes, drive link (3) is provided with the upper end of transmission external screw thread (31), described pointer (4) and drive link (3) and fixes；
Retainer (5), it is arranged in watchcase (1) and can move up and down, retainer (5) can upper under the air pressure introduced from introduction hole (111) drives move, retainer (5) has bullport (51), described drive link (3) is located in bullport (51), and the hole wall of bullport (51) is provided with the transmission female thread (511) coordinated with described transmission external screw thread (31)；
Support spring (6), act on retainer (5) and make retainer (5) keep moving down trend.
2. Pressure gauge according to claim 1, it is characterized in that: the bullport (51) on described retainer (5) is perforation, the bottom of bullport (51) is provided with base plate (7) and covers, and the upper surface of this base plate (7) contacts with the bottom surface of retainer (5).
null3. Pressure gauge according to claim 2，It is characterized in that: described watchcase (1) is by shell (11)、Upper cover (13) composition that inner shell (12) and transparent material are made，Inner shell (12) is embedded in shell (11)，Retainer (5) is located in the cavity of inner shell (12)，Described graduated disc (2) is shelved on the upper surface of inner shell (12)，And covered upper cover (13) compacting being located at shell (11) upper end open place，The lower end of described drive link (3) is located in described bullport (51) after inner shell (12)，Described support spring (6) is positioned at the cavity of inner shell (12)，The upper end supporting spring (6) is bearing on the roof of cavity of inner shell (12)，The lower end supporting spring (6) is supported on retainer (5)，Described introduction hole (111) is arranged on the bottom of shell (11).
4. Pressure gauge according to claim 3, it is characterized in that: the upper surface of described inner shell (12) has the ladder hole (121) communicated with inner shell (12) cavity, the top of described drive link (3) has end difference (32), the lower end of described drive link (3) is located in described bullport (51) after the ladder hole (121) of inner shell, meanwhile, the end difference (32) on described drive link (3) is shelved on the bottom surface in macropore portion of ladder hole (121).
5. the Pressure gauge according to claim 3 or 4, it is characterized in that: the end face of described drive link (3) has the pointed cone portion (33) raised up, having the bellmouth (131) matched with described pointed cone portion (33) on the inner surface of described upper cover (13), pointed cone portion (33) are plugged in bellmouth (131).
6. Pressure gauge according to claim 5, it is characterised in that: form integral piece together with described pointer (4) is one-body molded with drive link (3).
7. Pressure gauge according to claim 3, it is characterized in that: the outer peripheral face of described retainer (5) contacts formation hermetic seal with the cavity interior walls of inner shell (12), the perisporium of described retainer (5) has axially arranged gathering sill (52), the cavity interior walls of described inner shell (12) is provided with axially arranged guiding rib (122), and guiding rib (122) is plugged in gathering sill (52) and can Relative sliding.
8. Pressure gauge according to claim 7, it is characterized in that: the bottom surface of described retainer (5) has the annular groove (53) of indent, the lateral wall of annular groove (53) forms the tooth portion (531) turned up and contact with the cavity interior walls of inner shell (12).
9. Pressure gauge according to claim 3, it is characterized in that: in described shell (11), be provided with the breathing sheet (8) that quality of rubber materials is made, this breathing sheet (8) is compressed between shell (11) and inner shell (12), and described retainer (5) and base plate (7) are shelved on the upper surface breathing sheet (8).
10. Pressure gauge according to claim 3, it is characterized in that: the bottom of described shell (11) has the threaded post (112) downwardly extended, described introduction hole (111) is arranged on this threaded post (112).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344095.9A CN104236784B (en) | 2014-07-18 | 2014-07-18 | A kind of Pressure gauge |
| PCT/CN2015/000481 WO2016008278A1 (en) | 2014-07-18 | 2015-07-01 | Pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344095.9A CN104236784B (en) | 2014-07-18 | 2014-07-18 | A kind of Pressure gauge |
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| Publication Number | Publication Date |
|---|---|
| CN104236784A CN104236784A (en) | 2014-12-24 |
| CN104236784B true CN104236784B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410344095.9A Active CN104236784B (en) | 2014-07-18 | 2014-07-18 | A kind of Pressure gauge |
Country Status (2)
| Country | Link |
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| CN (1) | CN104236784B (en) |
| WO (1) | WO2016008278A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236784B (en) * | 2014-07-18 | 2016-07-06 | 格力休闲体育用品有限公司 | A kind of Pressure gauge |
| CN105043639B (en) * | 2015-08-15 | 2022-10-14 | 重庆布莱迪仪器仪表有限公司 | Simple pressure-resistant pressure gauge |
| JP7050186B2 (en) * | 2019-12-02 | 2022-04-07 | エア ボックス シーオー．エルティーディー． | Air sensor |
| CN111896169B (en) * | 2020-08-07 | 2021-09-14 | 金湖九州仪表有限公司 | Pressure gauge dial plate amplifying device |
| CN113514190A (en) * | 2021-07-14 | 2021-10-19 | 宁波布拉沃冲气具制造有限公司 | Anti-falling barometer |
| CN114235265B (en) * | 2022-02-23 | 2022-04-29 | 东营鼎洪石油技术开发有限公司 | Oil field is with oil pressure seat that can install manometer fast |
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| DE2614562A1 (en) * | 1976-04-03 | 1977-10-13 | Rm Technik Regel Und Messarmat | Transfer mechanism for manometers with Bourdon tubes - eliminates finely toleranced toothed gears by using lever wire and shaft |
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| GB215477A (en) * | 1923-02-21 | 1924-05-15 | Dunlop Rubber Co | Improvements in fluid pressure gauges and indicators |
| GB686887A (en) * | 1951-01-18 | 1953-02-04 | Sulzer Ag | Improvements relating to devices for indicating the maximum value of a variable force |
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| CN104236784B (en) * | 2014-07-18 | 2016-07-06 | 格力休闲体育用品有限公司 | A kind of Pressure gauge |
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- 2014-07-18 CN CN201410344095.9A patent/CN104236784B/en active Active
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2015
- 2015-07-01 WO PCT/CN2015/000481 patent/WO2016008278A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2614562A1 (en) * | 1976-04-03 | 1977-10-13 | Rm Technik Regel Und Messarmat | Transfer mechanism for manometers with Bourdon tubes - eliminates finely toleranced toothed gears by using lever wire and shaft |
| DE2913837A1 (en) * | 1979-04-06 | 1980-10-23 | Rexroth Gmbh G L | Helical tube pressure sensor with lift transducer - has lift axis perpendicular to coil radius in compact arrangement |
| JPS5797423A (en) * | 1980-12-10 | 1982-06-17 | Meisei Electric Co Ltd | Pressure receiving part for hydraulic pressure gauge |
| CN1167912A (en) * | 1996-06-10 | 1997-12-17 | 黄添财 | Manometer |
| CN201522351U (en) * | 2009-10-31 | 2010-07-07 | 舟山市佳尔灵仪表有限公司 | Minitype bourdon tube pressure gauge |
| CN203551178U (en) * | 2013-10-31 | 2014-04-16 | 瑞安市东南仪表元件厂 | Photoelectric type fuel gas pressure gauge |
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| CN204027760U (en) * | 2014-07-18 | 2014-12-17 | 格力休闲体育用品有限公司 | A kind of tensimeter |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016008278A1 (en) | 2016-01-21 |
| CN104236784A (en) | 2014-12-24 |
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