CN102353495B - Pressure measurement device applied to environments with non-standard atmospheric pressure - Google Patents
Pressure measurement device applied to environments with non-standard atmospheric pressure Download PDFInfo
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- CN102353495B CN102353495B CN 201110171107 CN201110171107A CN102353495B CN 102353495 B CN102353495 B CN 102353495B CN 201110171107 CN201110171107 CN 201110171107 CN 201110171107 A CN201110171107 A CN 201110171107A CN 102353495 B CN102353495 B CN 102353495B
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Abstract
The invention relates to a pressure measurement device applied to environments with non-standard atmospheric pressure. The pressure measurement device comprises a shell body, a measuring spring tube, a connecting rod, a gear transmission mechanism, a pointer and a dial plate; the fixed end of the measuring spring tube is fixedly arranged in the shell body; the moving end of the measuring spring tube drives the gear transmission mechanism through the connecting rod; the pointer is fixedly arranged on a center shaft of the gear transmission mechanism; the dial plate is fixedly arranged in the shell body corresponding to the pointer; a compensating spring tube is arranged at a position symmetrical to the measuring spring tube; one end of the compensating spring tube and the moving end of the measuring spring tube are fixedly arranged; the other end of the compensating spring tube and the fixed end of the measuring spring tube are fixedly arranged; and the standard atmospheric pressure is sealed in the compensating spring tube. The pressure measurement device provided by the invention has a simple structure, a scientific and reasonable design and lower cost and can accurately measure the internal pressure value of a space to be measured in an environment with non-standard atmospheric pressure, thus the pressure measurement device is a pressure measurement device which is safe and reliable and is applied to the environments with the non-standard atmospheric pressure.
Description
Technical field
The invention belongs to device for pressure measurement field, especially a kind of device for pressure measurement that is applied under non-standard atmospheric pressure environment.
Background technology
along with the economic develop rapidly of China, urbanization process is further accelerated, the city size expanding day, underground construction is more and more frequent, especially use shield machine excavation subterranean tunnel, when using shield machine, for construction safety, usually to monitor the pressure condition of shield machine inside, especially observe the pressure condition of personnel pulpit of living in and monitored pulpit, and the general criteria of right and wrong atmospheric pressure environment all in these two pulpit, the device for pressure measurement of common application under the standard atmospheric pressure environment is to be used to measure the instrument of normal pressure take atmospheric pressure as benchmark, if this kind manometer is applied under non-standard atmospheric pressure environment, can produce the additive error suitable with deviation value.Cause reading inaccurate, affect the observation personnel to the judgement of monitored pulpit pressure condition, potential safety hazard is larger.
in being retrieved, prior art finds a contrast file, its patent No. is 200420013049.2, patent name is many bourdon gaugess, Granted publication number is CN2760529Y, the applying date is on Dec 25th, 2004, the many bourdon gaugess of this documents disclose and have comprised support, movement, at least two C type bourdon tubes, movement comprises at least one group of gear drive, in this documents, inside and outside design is side by side adopted in the laying of at least two C type bourdon tubes, major function is the force value that realizes by a plurality of equipment under tests of gauge measurement, namely reaching under the prerequisite of identical function, the tensimeter volume of this documents is less, structure is compacter, but it can measure the numerical value take normal atmospheric pressure as benchmark under non-standard atmospheric pressure environment without any explanation.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of device for pressure measurement that is applied under non-standard atmospheric pressure environment is provided, this apparatus structure is simple, design science rationally, cost is lower, can be under non-standard atmospheric pressure environment Measurement accuracy detected space internal pressure value.
The present invention solves its technical matters and is achieved through the following technical solutions:
a kind of device for pressure measurement that is applied under non-standard atmospheric pressure environment, comprise housing, the measuring spring pipe, connecting rod, gear drive, pointer and dial plate, the stiff end of measuring spring pipe is packed in housing, the mobile terminal of measuring spring pipe is by connecting rod driven wheel gear train, pointer is packed on the central shaft of gear drive, dial plate is packed in the housing corresponding with pointer, it arranges a counterbalance spring pipe in the position with measuring spring pipe symmetry, the mobile terminal of this counterbalance spring Guan Yiduan and measuring spring pipe is fixedly mounted with, the stiff end of the other end of this counterbalance spring pipe and measuring spring pipe is fixedly mounted with, seal standard atmospheric pressure in this counterbalance spring pipe.
And described measuring spring pipe and counterbalance spring pipe are symmetrical arranged with the line of centres between measuring spring pipe stiff end and mobile terminal.
And described measuring spring pipe is all identical with mechanical property and the geometric configuration of counterbalance spring pipe.
And, a pressure being set on the stiff end of described measuring spring pipe importing port, this pressure imports port and is communicated with the measuring spring pipe.
Advantage of the present invention and beneficial effect are:
1, the device for pressure measurement that should be used under non-standard atmospheric pressure environment arranges a counterbalance spring pipe in the position with measuring spring pipe symmetry, the mobile terminal of this counterbalance spring Guan Yiduan and measuring spring pipe is fixedly mounted with, the stiff end of the other end of this counterbalance spring pipe and measuring spring pipe is fixedly mounted with, seal standard atmospheric pressure in this counterbalance spring pipe, this kind structure can effectively be measured the pressure of equipment under test under non-standard atmospheric pressure environments, especially counterbalance spring pipe and measuring spring pipe is symmetrical arranged, their physical dimensions are identical, mechanical characteristic is identical, under non-standard atmospheric pressure environments, the additonal pressure error size that produces equates, opposite direction, acting on simultaneously the mobile terminal cancels each other, eliminate working environment and departed from the measuring error that standard atmospheric pressure produces.
2, should be symmetrical arranged with the line of centres between measuring spring pipe stiff end and mobile terminal for measuring spring pipe and the counterbalance spring pipe of the device for pressure measurement under non-standard atmospheric pressure environment, the measuring spring pipe is all identical with mechanical property and the physical dimension of counterbalance spring pipe, and this kind structure has ensured to offset from environment and departed from the measuring error that standard atmospheric pressure produces.
3, should be used on the stiff end of measuring spring pipe of the device for pressure measurement under non-standard atmospheric pressure environment, a pressure being set and import port, this pressure imports port and is communicated with the measuring spring pipe, and the setting of this kind structure is convenient for measuring.
4, the present invention is simple in structure, design science is reasonable, cost is lower, can be under non-standard atmospheric pressure environment Measurement accuracy detected space internal pressure value, be a kind of safe and reliable device for pressure measurement that is applied under non-standard atmospheric pressure environment.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
a kind of device for pressure measurement that is applied under non-standard atmospheric pressure environment, comprise housing 9, measuring spring pipe 7, connecting rod 3, gear drive 6, pointer 4 and dial plate 11, the stiff end 10 of measuring spring pipe is packed in housing, the mobile terminal 2 of measuring spring pipe is by connecting rod driven wheel gear train, pointer is packed on the central shaft 5 of gear drive, dial plate is packed in the housing corresponding with pointer, it arranges a counterbalance spring pipe 1 in the position with measuring spring pipe symmetry, the mobile terminal of this counterbalance spring Guan Yiduan and measuring spring pipe is fixedly mounted with, the stiff end of the other end of this counterbalance spring pipe and measuring spring pipe is fixedly mounted with, seal standard atmospheric pressure in this counterbalance spring pipe, further measuring spring pipe and counterbalance spring pipe are symmetrical arranged with the line of centres between measuring spring pipe stiff end and mobile terminal, the measuring spring pipe is all identical with mechanical property and the physical dimension of counterbalance spring pipe, one pressure is set on the stiff end of measuring spring pipe imports port 8, this pressure imports port and is communicated with the measuring spring pipe.
Principle of work of the present invention:
under non-standard atmospheric pressure environment, the sensitive element measuring spring pipe of this device for pressure measurement and counterbalance spring pipe are the symmetrical structure setting, non-standard atmospheric pressure acts on respectively equal and opposite in direction on measuring spring pipe and counterbalance spring pipe, opposite direction and then cancelled each other, and seal standard atmospheric pressure in the counterbalance spring pipe, so when pressure imports the pressure of port access equipment under test, measuring spring pipe distortional stress is the deformation that produces with respect to normal atmospheric pressure, by connecting rod driven wheel gear train, central shaft by gear drive drives the pointed dial plate.The reading that points to is exactly the numerical value with respect to normal atmospheric pressure.Gear drive is that prior art repeats no more here.
Claims (3)
1. device for pressure measurement that is applied under non-standard atmospheric pressure environment, comprise housing, the measuring spring pipe, connecting rod, gear drive, pointer and dial plate, the stiff end of measuring spring pipe is packed in housing, the mobile terminal of measuring spring pipe is by connecting rod driven wheel gear train, pointer is packed on the central shaft of gear drive, dial plate is packed in the housing corresponding with pointer, it is characterized in that: in the position with measuring spring pipe symmetry, one counterbalance spring pipe is set, the mobile terminal of this counterbalance spring Guan Yiduan and measuring spring pipe is fixedly mounted with, the stiff end of the other end of this counterbalance spring pipe and measuring spring pipe is fixedly mounted with, seal standard atmospheric pressure in this counterbalance spring pipe, one pressure is set on the stiff end of described measuring spring pipe imports port, this pressure imports port and is communicated with the measuring spring pipe.
2. the device for pressure measurement that is applied under non-standard atmospheric pressure environment according to claim 1, it is characterized in that: described measuring spring pipe and counterbalance spring pipe are symmetrical arranged with the line of centres between measuring spring pipe stiff end and mobile terminal.
3. the device for pressure measurement that is applied under non-standard atmospheric pressure environment according to claim 1, it is characterized in that: described measuring spring pipe is all identical with mechanical property and the geometric configuration of counterbalance spring pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110171107 CN102353495B (en) | 2011-06-23 | 2011-06-23 | Pressure measurement device applied to environments with non-standard atmospheric pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110171107 CN102353495B (en) | 2011-06-23 | 2011-06-23 | Pressure measurement device applied to environments with non-standard atmospheric pressure |
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| CN102353495A CN102353495A (en) | 2012-02-15 |
| CN102353495B true CN102353495B (en) | 2013-11-06 |
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| CN 201110171107 Active CN102353495B (en) | 2011-06-23 | 2011-06-23 | Pressure measurement device applied to environments with non-standard atmospheric pressure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105527070B (en) * | 2015-12-02 | 2018-01-16 | 中国航空工业集团公司沈阳空气动力研究所 | The device and stable gas pressure means of the stable atmospheric pressure of wind-tunnel gauge pressure transducer |
| CN108375445B (en) * | 2018-02-01 | 2019-12-27 | 山东理工大学 | Heart-shaped tubular structure for pneumoelectric sensor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713331A (en) * | 1980-06-28 | 1982-01-23 | Mitsubishi Heavy Ind Ltd | Bourdon tube type converter |
| IT210845Z2 (en) * | 1986-05-21 | 1989-01-11 | Paviglianiti Nunzio | COMPENSATED PRESSURE GAUGE FOR GAS AND / OR FLUIDS. |
| US7124642B2 (en) * | 2004-04-15 | 2006-10-24 | Right Weigh, Inc. | Dual gauge with dual calibration system and method |
| CN2760529Y (en) * | 2004-12-25 | 2006-02-22 | 蔡福明 | Multi spring tube pressure gauge |
| CN201680939U (en) * | 2010-05-13 | 2010-12-22 | 上海新艺新速仪表有限公司 | Double-pin double-tube pressure gauge |
| CN202110021U (en) * | 2011-06-23 | 2012-01-11 | 天津市泰菲特仪器仪表技术有限公司 | Pressure measure apparatus applied in non standard atmospheric pressure environment |
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