CN104696577A - Pressure signal device - Google Patents
Pressure signal device Download PDFInfo
- Publication number
- CN104696577A CN104696577A CN201310663462.7A CN201310663462A CN104696577A CN 104696577 A CN104696577 A CN 104696577A CN 201310663462 A CN201310663462 A CN 201310663462A CN 104696577 A CN104696577 A CN 104696577A
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- CN
- China
- Prior art keywords
- spring
- diaphragm
- signal device
- pressure signal
- socket
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a pressure signal device. The pressure signal device comprises a shell, a diaphragm, a hard core, a spring seat, a spring, a regulating cover, a filler neck, a gasket, a microswitch, a bracket, a conductive wire and a socket, wherein the filler neck and the shell are connected through threads; the filler neck, the gasket and the diaphragm form a sealed cavity; the hard core is placed on the diaphragm; the spring seat is arranged on the hard core; the spring is pressed onto the spring seat by the regulating cover; the regulating cover is connected with the shell through threads; the microswitch and the socket are mounted on the bracket; the bracket is connected with the regulating cover through threads; the microswitch is connected with the socket through the conductive wire; a gas inlet in the filler neck is formed in the lower side of the diaphragm; the spring is arranged on the upper side of the diaphragm; the pressure signal device uses the spring as an elastic component for regulating opening and closing pressures. The pressure signal device can achieve precise regulation of a working pressure point, and is simple in regulation; the spring and pressurizing gas are positioned on the two sides of the diaphragm respectively, and the rigidity of the spring is not affected by temperature change of the pressurizing gas, so that the stability of the working pressure point is improved.
Description
Technical field
The present invention relates to a kind of pressure signal device, particularly relate to the pressure signal device that a kind of carrier rocket is used.
Background technique
Pressure signal device is carrier rocket pressurizing transmission system important unit used, and tank pressure is experienced in its effect, controls opening and closedown of tank supercharging solenoid valve used, thus controls tank pressure, ensures engine work.
Be in the patent of 201010240368.7 at application number, disclose a kind of pressure signal device, comprise the connecting-tube nozzle being provided with suction port, the Regulation spring being placed in connecting-tube nozzle inner chamber and spring holder, the housing be connected with connecting-tube nozzle, the diaphragm being placed in housing cavity, the hard core be placed on diaphragm, the adjustment swivel nut be connected with housing, inner side be positioned on hard core and outside by the spacing swivel nut adjusting disc spring that swivel nut compresses, be connected with adjustment swivel nut by outside thread, be fixed on socket on housing and sensitive switch; The distance that it also comprises between described spacing swivel nut and hard core is 0.2 ~ 0.3mm; Be threaded connection between described connecting-tube nozzle and housing, be threaded connection between described adjustment swivel nut and housing.Not only adjustment in use spring is as flexible adjustment element for this pressure signal device, and use again disc spring as elasticity quick-action element, although can realize the meticulous adjustment of working pressure point, tone pitch is comparatively complicated; Simultaneously owing to it using disc spring structure, cause anti-vibration, impact property poor; Regulation spring is positioned at suction port atmospheric pressure cavity, and the change of gas temperature is comparatively large on spring rate impact, is unfavorable for the stability of working pressure point, can not meets the work requirements accurately controlling tank pressure completely.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of pressure signal device, solving the problem of existing pressure signal device tone pitch complexity, working pressure point instability.
In order to reach foregoing invention object, the invention provides a kind of pressure signal device, comprise: housing, diaphragm, hard core, spring seat, spring, adjustment lid, connecting-tube nozzle, pad, sensitive switch, support, wire, socket, wherein be threaded connection between connecting-tube nozzle and housing, with pad, diaphragm forms Seal cage jointly, hard core is positioned on diaphragm, spring seat is positioned on hard core, spring is pressed on spring seat by adjusting lid, adjustment lid is connected with housing by screw thread, sensitive switch, socket is rack-mount, support is covered by screw thread be connected with adjustment, be connected by wire between sensitive switch with socket.Gas access on connecting-tube nozzle is arranged on the downside of diaphragm, and spring is arranged on the upside of diaphragm, and pressure signal device spring is opened as regulating, the elastic element of closing pressure.
The present invention compared with prior art has the following advantages:
The present invention's spring is opened as regulating, the elastic element of closing pressure, can realize the fine adjustment of working pressure point, and tone pitch is simple.Because spring and pressurization gas lay respectively at the both sides of diaphragm, spring rate by the impact of pressurization gas temperature variation, does not improve the stability of working pressure point.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural representation of a kind of pressure signal device of the present invention.
Embodiment
See the accompanying drawing that the embodiment of the present invention is shown, hereafter in more detail the present invention will be described.But the present invention can realize in many different forms, and should not be construed as by the restriction in the embodiment of this proposition.On the contrary, it is abundant and complete open in order to reach for proposing these embodiments, and makes those skilled in the art understand scope of the present invention completely.In these accompanying drawings, for clarity sake, may be exaggerated size and the relative size in layer and region.
Now by describing in detail according to preferred embodiment of the present invention, to be further elaborated the present invention.
Figure 1 shows that the structural representation of a kind of pressure signal device of the present invention, this pressure signal device comprises: housing 1, diaphragm 2, hard core 3, spring seat 4, spring 5, adjustment lid 6, connecting-tube nozzle 7, pad 8, sensitive switch 9, support 10, wire 11, socket 12, wherein be threaded connection between connecting-tube nozzle 7 and housing 1, with pad 8, diaphragm 2 forms Seal cage jointly, hard core 3 is positioned on diaphragm 2, spring seat 4 is positioned on hard core 3, spring 5 is pressed on spring seat 4 by adjustment lid 6, adjustment lid 6 is connected with housing 1 by screw thread, sensitive switch 9, socket 12 is installed over the mount 10, support 10 is connected with adjustment lid 6 by screw thread, be connected by wire 11 between sensitive switch 9 with socket 12.Gas access on connecting-tube nozzle 7 is arranged on the downside of diaphragm 2, and spring 5 is arranged on the upside of diaphragm 2, and pressure signal device spring 5 is opened as regulating, the elastic element of closing pressure.
The regulating step of pressure signal device provided by the invention is as follows:
Described sensitive switch 9 of the present invention is provided with a pair normally-closed contact and a pair normally opened contact, sends working pressure point P1 and P2 by sensitive switch 9.Before assembling, survey the difference of stiffness parameters and working pressure point P1 and P2 according to spring 2 and diaphragm 7, match the sensitive switch 9 of corresponding differential movement.By the also slowly supercharging of connecting-tube nozzle 7 insufflation gas, diaphragm 2 is experienced atmospheric pressure and is passed to spring seat 4 by hard core 3, by the pre compressed magnitude of adjustment lid 6 Regulation spring 5, makes gas pressure close to working pressure point P
1time, the active force that spring seat 4 overcomes spring 2 moves upward.By the contact of swinging mounting fine adjustment sensitive switch 9 and the relative position of pushing surface A, gas pressure is made to be increased to working pressure point P
1time, contact pressure of pressing of pushing surface A on spring seat 4 of sensitive switch 9 triggers, and sensitive switch 9 sends electrical signal.Reduce gas pressure, spring seat 4 starts downward return, when gas pressure is reduced to working pressure point P under spring 2 acts on
2time, according to the apolegamy result of sensitive switch 9 before assembling, the contact of sensitive switch 9 reaches release position, and sensitive switch 9 sends electrical signal.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any reference character in claim should be considered as the claim involved by limiting.
Claims (3)
1. a pressure signal device, is characterized in that, comprising: housing, diaphragm, hard core, spring seat, spring, adjustment lid, connecting-tube nozzle, pad, sensitive switch, support, wire, socket;
Be threaded connection between described connecting-tube nozzle and housing, jointly form Seal cage with pad, diaphragm;
Described hard core is positioned on diaphragm, and described spring seat is positioned on hard core, and spring is pressed on spring seat by adjusting lid, and adjustment lid is connected with housing by screw thread;
Described sensitive switch, socket are rack-mount, and support is covered by screw thread be connected with adjustment, is connected between sensitive switch with socket by wire.
2. pressure signal device according to claim 1, is characterized in that, the gas access on described connecting-tube nozzle is arranged on the downside of diaphragm, and described spring is arranged on the upside of diaphragm, opens, the elastic element of closing pressure as regulating.
3. pressure signal device according to claim 1, is characterized in that, described sensitive switch is provided with a pair normally-closed contact and a pair normally opened contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310663462.7A CN104696577B (en) | 2013-12-10 | 2013-12-10 | A kind of pressure signal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310663462.7A CN104696577B (en) | 2013-12-10 | 2013-12-10 | A kind of pressure signal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104696577A true CN104696577A (en) | 2015-06-10 |
| CN104696577B CN104696577B (en) | 2017-10-27 |
Family
ID=53343983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310663462.7A Active CN104696577B (en) | 2013-12-10 | 2013-12-10 | A kind of pressure signal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104696577B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409601A (en) * | 2016-12-07 | 2017-02-15 | 象山科博仪表有限公司 | Micro pressure controller |
| CN106644242A (en) * | 2016-12-30 | 2017-05-10 | 西安航天动力研究所 | Diaphragm type pressure annunciator |
| CN114496647A (en) * | 2022-04-08 | 2022-05-13 | 成都凯天电子股份有限公司 | Small-sized pressure switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662779A (en) * | 1971-01-13 | 1972-05-16 | Johnson Service Co | Bleed type fluid pressure control apparatus and diaphragm unit therefor |
| CN1945772A (en) * | 2006-10-31 | 2007-04-11 | 杨克庆 | Pressure switch with anti-leakage self protective function |
| CN101936240A (en) * | 2010-07-30 | 2011-01-05 | 北京宇航系统工程研究所 | Coarse and fine adjustment combined pressure annunciator |
| CN202285216U (en) * | 2011-09-22 | 2012-06-27 | 浙江力夫机电制造有限公司 | Novel pressure control switch |
| CN102979939A (en) * | 2012-11-27 | 2013-03-20 | 上海宇航系统工程研究所 | Press type double-point pressure annunciator and regulating method thereof |
-
2013
- 2013-12-10 CN CN201310663462.7A patent/CN104696577B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662779A (en) * | 1971-01-13 | 1972-05-16 | Johnson Service Co | Bleed type fluid pressure control apparatus and diaphragm unit therefor |
| CN1945772A (en) * | 2006-10-31 | 2007-04-11 | 杨克庆 | Pressure switch with anti-leakage self protective function |
| CN101936240A (en) * | 2010-07-30 | 2011-01-05 | 北京宇航系统工程研究所 | Coarse and fine adjustment combined pressure annunciator |
| CN202285216U (en) * | 2011-09-22 | 2012-06-27 | 浙江力夫机电制造有限公司 | Novel pressure control switch |
| CN102979939A (en) * | 2012-11-27 | 2013-03-20 | 上海宇航系统工程研究所 | Press type double-point pressure annunciator and regulating method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409601A (en) * | 2016-12-07 | 2017-02-15 | 象山科博仪表有限公司 | Micro pressure controller |
| CN106644242A (en) * | 2016-12-30 | 2017-05-10 | 西安航天动力研究所 | Diaphragm type pressure annunciator |
| CN114496647A (en) * | 2022-04-08 | 2022-05-13 | 成都凯天电子股份有限公司 | Small-sized pressure switch |
| CN114496647B (en) * | 2022-04-08 | 2022-09-09 | 成都凯天电子股份有限公司 | Small-sized pressure switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104696577B (en) | 2017-10-27 |
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