CN204924535U - Simple and easy resistance to compression manometer - Google Patents
Simple and easy resistance to compression manometer Download PDFInfo
- Publication number
- CN204924535U CN204924535U CN201520613068.7U CN201520613068U CN204924535U CN 204924535 U CN204924535 U CN 204924535U CN 201520613068 U CN201520613068 U CN 201520613068U CN 204924535 U CN204924535 U CN 204924535U
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- cavity
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- import
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Abstract
The utility model relates to a manometer, disclose a simple and easy resistance to compression manometer, including the shell, be equipped with the pressure scale interval on the shell, the shell has formed one end and has opened the cavity that has the manometer import, be equipped with the piston in the cavity, open to have in the shell and communicate on the cavity, the bypass chamber of lower both sides, it is equipped with the cavity in the opening below of shell upside to communicate near the bypass chamber, it seals the import or the export in bypass chamber to be equipped with one end on the bypass chamber, but the other end is established and form the perhaps trace of export of switch bypass chamber import at cavity and bypass intracavity in the cavity, the piston is established between bypass chamber import and trace, fixedly connected with pointer on the piston, be equipped with the spring between piston and the shell, the trace is established on the movement track of piston, the scale interval is established between trace and pointer, measurement medium pressure has been solved when too big to this patent application, and there is fragile problem in the manometer, provide one kind when pressure is too big, prevent the simple and easy resistance to compression manometer that the manometer damaged.
Description
Technical field
The utility model relate to a kind of tensimeter, has been 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.
Utility model content
The purpose of this utility model is to provide a kind of when pressure is excessive, prevents the simple and easy resistance to compression tensimeter that tensimeter is damaged.
The technical solution of the utility model 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.
The beneficial effects of the utility model are: 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 utility model.
Embodiment
Below by embodiment, the utility model is described in further detail:
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 embodiment of the present utility model, 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 the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.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 |
|---|---|---|---|
| CN201520613068.7U CN204924535U (en) | 2015-08-15 | 2015-08-15 | Simple and easy resistance to compression manometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613068.7U CN204924535U (en) | 2015-08-15 | 2015-08-15 | Simple and easy resistance to compression manometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204924535U true CN204924535U (en) | 2015-12-30 |
Family
ID=54973651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520613068.7U Expired - Fee Related CN204924535U (en) | 2015-08-15 | 2015-08-15 | Simple and easy resistance to compression manometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204924535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043639A (en) * | 2015-08-15 | 2015-11-11 | 重庆布莱迪仪器仪表有限公司 | Simple compressive pressure gauge |
-
2015
- 2015-08-15 CN CN201520613068.7U patent/CN204924535U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043639A (en) * | 2015-08-15 | 2015-11-11 | 重庆布莱迪仪器仪表有限公司 | Simple compressive pressure gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |