CN105043639A - Simple compressive pressure gauge - Google Patents
Simple compressive pressure gauge Download PDFInfo
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- CN105043639A CN105043639A CN201510499542.2A CN201510499542A CN105043639A CN 105043639 A CN105043639 A CN 105043639A CN 201510499542 A CN201510499542 A CN 201510499542A CN 105043639 A CN105043639 A CN 105043639A
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- tensimeter
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Abstract
The invention relates to a pressure gauge, in particular a simple compressive pressure gauge. The simple compressive pressure gauge comprises a shell; the shell is provided with pressure scale values; a cavity with a pressure gauge inlet formed at one end is formed in the shell; a piston is arranged in the cavity; a bypass cavity communicated with the upper side and the lower side of the cavity is formed in the shell; a cavity body which is adjacent to the bypass cavity is arranged below the opening at the upper side of the shell in a communicated manner; the bypass cavity is provided with a linkage rod; one end of the linkage rod seals the inlet or outlet of the bypass cavity; the other end of the linkage rod is arranged in the cavity body; the linkage rod in the cavity and the bypass cavity can open and close the inlet or outlet of the bypass cavity; the piston is arranged between the inlet of the bypass cavity and the linkage rod; the piston is fixedly connected with a pointer; a spring is arranged between the piston and the shell; the linkage rod is arranged on the movement trajectory of the piston; and the scale values are arranged between the linkage rod and the pointer. With the simple compressive pressure gauge of the invention adopted, the problem of high possibility of being damage of a pressure gauge when the pressure of a measured medium is too high can be solved, and the compressive pressure gauge will not be damaged when the pressure is too high.
Description
Technical field
The present invention relates to a kind of tensimeter, be specifically related to a kind of simple and easy resistance to compression tensimeter.
Background technology
It is sensitive element that tensimeter refers to flexible member, measures and indicates the instrument higher than environmental pressure, and application is very general, and it is almost throughout all industrial flows and scientific research field.Be seen everywhere in fields such as heat distribution pipe network, oil gas transmission, water and air supply system, vehicle maintenance maintenance factory shops.Especially, in industrial stokehold and commercial measurement process, the elastic sensing element due to mechanical compression table has very high physical strength and the characteristic such as convenient for production, makes mechanical compression table obtain applying more and more widely.
The Chinese patent patent No. is CN201320534048.1, disclose a kind of portable air compressor spring manometer, comprise transparent or translucent air chamber, the outside surface of air chamber is provided with pressure scale, stiff end is provided with in air chamber, movable indication end and the spring be arranged between stiff end and movable indication end, stiff end is fixedly connected on one end of air chamber, can slide along the inwall of air chamber under the action of the spring in movable indication end, stiff end and movable indication end all with the inwall compact siro spinning technology of air chamber, spring manometer is also provided with the air intake opening for being filled with tested gas, tested gas enters in air chamber by air intake opening, and act on the side of movable indication end near spring.This kind of tensimeter, if the pressure durations of measured medium becomes large, piston can upwards be walked always, when piston movement to air chamber top constantly, piston can apply pressure to plenum interior, when pressure is excessive, air chamber wall will crush by piston, cause tensimeter to damage, and the fragment flown out due to air chamber wall have certain pressure, is easy to hurt operating personnel.
Summary of the invention
The object of the present invention is to provide a kind of when pressure is excessive, prevent the simple and easy resistance to compression tensimeter that tensimeter is damaged.
Technical scheme of the present invention is: a kind of simple and easy resistance to compression tensimeter, comprise shell, described shell is provided with pressure scale, shell defines the cavity that one end has tensimeter import, piston is provided with in cavity, have in shell and be communicated on cavity, the bypass chamber of lower both sides, close bypass chamber is communicated in below the opening on the upside of shell and is provided with cavity, bypass chamber is provided with import or the outlet trace of closed bypass chamber, the other end of trace is located in cavity, and extend out in cavity in cavity, piston is located between bypass chamber import and trace, piston is fixedly connected with pointer, spring is provided with between piston and shell, trace is located on the movement locus of piston, described scale value is located between trace and pointer.
Beneficial effect of the present invention is: shell is the manometric skeleton of a kind of simple and easy resistance to compression, the shell wall of tensimeter import is provided with the external thread be connected with the valve on measured medium pipeline, threaded engagement is that one simply removably connects, it is easy to connect stable, for the manometric replacing of the simple and easy resistance to compression of one summary more.
Tensimeter import is connected on valve, open valve, the measured medium with certain pressure enters into a kind of simple and easy resistance to compression tensimeter, measured medium enters between piston and tensimeter import, measured medium overcomes the elastic force of the spring be connected on piston, press piston to move to the direction away from tensimeter import, by pointer indicating graduation value, and then complete the measurement of pressure.
When the pressure durations of measured medium increases, measured medium can driven plunger move towards the direction away from tensimeter import always, the pressure of measured medium continues, and when increasing to a certain numerical value, piston movement is to trace lower end, and when just contacting with trace, pointer is indicated to the maximal value of scale value, when the pressure of measured medium is excessive, now piston driving trace moves to the direction away from tensimeter import, the other end of trace will open import or the outlet of bypass chamber, import by bypass chamber is entered into bypass chamber by measured medium, and the top of cavity is entered into from the outlet of bypass chamber, because piston is arranged between trace and tensimeter import, so piston by be subject to measured medium to away from the thrust of tensimeter import and cavity internal upper part measured medium to the thrust near tensimeter import, and two power are equal, piston can be made to keep balance, piston is by stop motion, thus can prevent piston from crushing shell, and solve the problem of casing fragments injury operating personnel.
Further: cavity has through hole away from one end of tensimeter import, one end of the through hole of shell internal cavity is connected with the capping of shutoff through hole.After manometric bypass chamber is opened, can valve-off, tensimeter is unloaded from valve, then capping is opened the measured medium on cavity top is discharged in cavity, then by capping again involution, then among measurement tensimeter being put into again pressure.
Further: capping is connected with outer casing screw.Being threaded is a kind of to be widely usedly dismountablely fixedly connected with, have structure simple, connect the advantages such as reliable, mounting or dismounting are convenient.
Further: between piston and shell wall, between trace and shell wall and between trace and bypass chamber wall, to be equipped with O-ring seal.The setting of O-ring seal, at pressure under normal circumstances, can make measured medium can not enter in cavity through piston, ensure that the pressure of cavity internal upper part is constant; Also can make measured medium can not be excessive to air from cavity, ensure that the pressure of measured medium in tensimeter.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of simple and easy resistance to compression tensimeter embodiment of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: shell 1, piston 2, O-ring seal 3, spring 4, bolt 5, through hole 6, capping 7, bypass chamber 8, first spring 9, trace 10, external thread 11, tensimeter import 12, cavity 13, cavity 14, groove 15, first opening 16, second opening 17.
Embodiment is substantially as shown in Figure 1: a kind of simple and easy resistance to compression tensimeter, comprise shell 1, the lower end of described shell 1 has tensimeter import 12, shell 1 wall of tensimeter import 12 is provided with the import external thread 11 be connected with the valve on measured medium pipeline, shell 1 defines the cavity 13 that one end has tensimeter import 12, piston 2 is provided with in cavity 13, have in shell 1 and be communicated on cavity 13, the bypass chamber 8 of lower both sides, close bypass chamber 8 is communicated in below the opening on the upside of shell 1 and is provided with cavity 14, cavity 14 lower end has the first opening 16, on the right side of cavity 14, shell 1 wall has groove 15, bypass chamber 8 wall below groove 15 has the second opening 17, at the first opening 16, U-shaped trace 10 is connected with in groove 15 and the second opening 17, the first spring 9 is provided with between shell 1 wall above trace 10 and trace 10, the part of the trace 10 in the second opening 17, the import of bypass chamber 8 is closed, piston 2 is located between bypass chamber 8 import and trace 10, piston 2 is fixedly connected with pointer, spring 4 is provided with between piston 2 and shell 1, between piston 2 and shell 1 wall, O-ring seal 3 is equipped with between trace 10 and shell 1 wall and between trace 10 and bypass chamber 8 wall, cavity 13 upper end has through hole 6, the position of cavity 13 upper end through hole 6 is connected with the capping 7 of shutoff through hole 6 by bolt 5.
Tensimeter import 12 is connected on valve, open valve, the measured medium with certain pressure enters into a kind of simple and easy resistance to compression tensimeter, measured medium enters between piston 2 and tensimeter import 12, measured medium overcomes the elastic force of connection spring 4 on the piston 2, press piston 2 to move to the direction away from tensimeter import 12, by pointer indicating graduation value, complete the measurement of pressure.
When the pressure durations of measured medium increases, measured medium can driven plunger 2 move upward always, the pressure of measured medium continues, and when increasing to a certain numerical value, piston 2 moves to trace 10 lower end, and when just contacting with trace 10, pointer is indicated to the maximal value of scale value, when the pressure of measured medium is excessive, now piston 2 drives trace 10 to move upward, first spring 9 is compressed, the other end of trace 10 will open the import of bypass chamber 8, import by bypass chamber 8 is entered into bypass chamber 8 by measured medium, and the top of cavity 13 is entered into from the outlet of bypass chamber 8, because piston 2 is arranged between trace 10 and tensimeter import 12, so piston 2 by be subject to measured medium to away from the thrust of tensimeter import 12 and cavity 13 internal upper part measured medium to the thrust near tensimeter import 12, and two power are equal, piston 2 can be made to keep balance, piston 2 is by stop motion.
Then valve-off, tensimeter is unloaded from valve, again capping 7 is opened and the measured medium on cavity 13 top is discharged in cavity 13, then by capping 7 again involution, among the measurement again tensimeter being put into again pressure, now trace 10 is due to the elastic force of the first spring 9, again bypass chamber 8 import is closed.
The setting of O-ring seal 3, at pressure under normal circumstances, can make measured medium can not enter in cavity 13 through piston 2, ensure that the pressure of cavity 13 internal upper part is constant; Also can make measured medium can not be excessive to air from cavity 14, ensure that the pressure of measured medium in tensimeter.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in instructions etc. record the content that may be used for explaining claim.
Claims (4)
1. a simple and easy resistance to compression tensimeter, comprise shell, described shell is provided with pressure scale, shell defines the cavity that one end has tensimeter import, piston is provided with in cavity, it is characterized in that: have in shell and be communicated on cavity, the bypass chamber of lower both sides, close bypass chamber is communicated in below the opening on the upside of shell and is provided with cavity, bypass chamber is provided with import or the outlet trace of closed bypass chamber, the other end of trace is located in cavity, and extend out in cavity in cavity, piston is located between bypass chamber import and trace, piston is fixedly connected with pointer, spring is provided with between piston and shell, trace is located on the movement locus of piston, described scale value is located between trace and pointer.
2. the simple and easy resistance to compression tensimeter of one according to claim 1, is characterized in that: described cavity has through hole away from one end of tensimeter import, and one end of the through hole of shell internal cavity is connected with the capping of shutoff through hole.
3. the simple and easy resistance to compression tensimeter of one according to claim 2, is characterized in that: described capping is connected with outer casing screw.
4. the simple and easy resistance to compression tensimeter of one according to claim 3, is characterized in that: be equipped with O-ring seal between described piston and shell wall, between trace and shell wall and between trace and bypass chamber wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510499542.2A CN105043639B (en) | 2015-08-15 | 2015-08-15 | Simple pressure-resistant pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510499542.2A CN105043639B (en) | 2015-08-15 | 2015-08-15 | Simple pressure-resistant pressure gauge |
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| Publication Number | Publication Date |
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| CN105043639A true CN105043639A (en) | 2015-11-11 |
| CN105043639B CN105043639B (en) | 2022-10-14 |
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| CN201510499542.2A Active CN105043639B (en) | 2015-08-15 | 2015-08-15 | Simple pressure-resistant pressure gauge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358767A (en) * | 2023-05-22 | 2023-06-30 | 烟台海上航天科技有限公司 | U-shaped pressure gauge for measuring and stabilizing pressure of gas pipeline |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2100438A (en) * | 1980-06-05 | 1982-12-22 | Wallberg Kurt Ake | A device for the control and/or indication of fluid pressure |
| EP0157599A2 (en) * | 1984-03-29 | 1985-10-09 | General Signal Corporation | Pressure transducer |
| CN2132173Y (en) * | 1992-05-11 | 1993-05-05 | 孙泉 | Protector for pressure gauge |
| CN2236651Y (en) * | 1995-01-26 | 1996-10-02 | 阮逸标 | Damper of pressure meter |
| WO2002063266A1 (en) * | 2001-02-02 | 2002-08-15 | Endress+Hauser Gmbh + Co. Kg. | Differential pressure sensor with overload protection |
| EP1413866A2 (en) * | 1999-05-14 | 2004-04-28 | Rosemount Inc. | Process pressure measurement devices with improved error compensation |
| CN202522364U (en) * | 2012-05-03 | 2012-11-07 | 杜文江 | Pressure gage protector |
| CN204027760U (en) * | 2014-07-18 | 2014-12-17 | 格力休闲体育用品有限公司 | A kind of tensimeter |
| CN104236784A (en) * | 2014-07-18 | 2014-12-24 | 格力休闲体育用品有限公司 | Pressure gauge |
| CN104406720A (en) * | 2014-11-18 | 2015-03-11 | 重庆鸿磐机械配件有限公司 | Hydraulic force measuring device |
| CN204924535U (en) * | 2015-08-15 | 2015-12-30 | 重庆布莱迪仪器仪表有限公司 | Simple and easy resistance to compression manometer |
-
2015
- 2015-08-15 CN CN201510499542.2A patent/CN105043639B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2100438A (en) * | 1980-06-05 | 1982-12-22 | Wallberg Kurt Ake | A device for the control and/or indication of fluid pressure |
| EP0157599A2 (en) * | 1984-03-29 | 1985-10-09 | General Signal Corporation | Pressure transducer |
| CN2132173Y (en) * | 1992-05-11 | 1993-05-05 | 孙泉 | Protector for pressure gauge |
| CN2236651Y (en) * | 1995-01-26 | 1996-10-02 | 阮逸标 | Damper of pressure meter |
| EP1413866A2 (en) * | 1999-05-14 | 2004-04-28 | Rosemount Inc. | Process pressure measurement devices with improved error compensation |
| WO2002063266A1 (en) * | 2001-02-02 | 2002-08-15 | Endress+Hauser Gmbh + Co. Kg. | Differential pressure sensor with overload protection |
| CN202522364U (en) * | 2012-05-03 | 2012-11-07 | 杜文江 | Pressure gage protector |
| CN204027760U (en) * | 2014-07-18 | 2014-12-17 | 格力休闲体育用品有限公司 | A kind of tensimeter |
| CN104236784A (en) * | 2014-07-18 | 2014-12-24 | 格力休闲体育用品有限公司 | Pressure gauge |
| CN104406720A (en) * | 2014-11-18 | 2015-03-11 | 重庆鸿磐机械配件有限公司 | Hydraulic force measuring device |
| CN204924535U (en) * | 2015-08-15 | 2015-12-30 | 重庆布莱迪仪器仪表有限公司 | Simple and easy resistance to compression manometer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358767A (en) * | 2023-05-22 | 2023-06-30 | 烟台海上航天科技有限公司 | U-shaped pressure gauge for measuring and stabilizing pressure of gas pipeline |
| CN116358767B (en) * | 2023-05-22 | 2023-08-01 | 烟台海上航天科技有限公司 | U-shaped pressure gauge for measuring and stabilizing pressure of gas pipeline |
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| Publication number | Publication date |
|---|---|
| CN105043639B (en) | 2022-10-14 |
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