CN202867382U - Water pressure test pressure-relief device with multi-stage control ports - Google Patents
Water pressure test pressure-relief device with multi-stage control ports Download PDFInfo
- Publication number
- CN202867382U CN202867382U CN 201220567019 CN201220567019U CN202867382U CN 202867382 U CN202867382 U CN 202867382U CN 201220567019 CN201220567019 CN 201220567019 CN 201220567019 U CN201220567019 U CN 201220567019U CN 202867382 U CN202867382 U CN 202867382U
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- oil
- spool
- valve core
- cavity
- pressure test
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Abstract
The utility model discloses a water pressure test pressure-relief device with multi-stage control ports. The water pressure test pressure-relief device comprises a valve body and a valve core, wherein the valve core is arranged in the center inside the valve body, and an oil inlet cavity is arranged in the center of the valve core. A discharge cavity is arranged at the bottom of the valve body located on the lower end face of the valve core, a section of oil outlet cavity is arranged on one side of a center cavity of the valve core, and the outer end of the oil outlet cavity extends into the discharge cavity. A valve core lower end face control port is arranged at the valve core lower end face located on the inner side of the discharge cavity, a section of oil inlet control port is located below the oil inlet cavity, and the inner end of the oil inlet control port is connected with the center cavity of the valve core. The water pressure test pressure-relief device has the advantages that oil lines of an oil drainage port and the oil outlet cavity are respectively guided to the bottom of the valve body, and meanwhile the oil inlet cavity and the valve core lower end face are respectively and additionally provided with a control port, so test for the oil outlet cavity, the oil drainage port, two ends of the valve core and the like is convenient, and the fact that flow directions of the oil lines are completely in accordance with the direction of water pressure test control ports can be guaranteed in the process of an oil-water balance maintaining experiment.
Description
Technical field
The utility model relates to the hydraulics field, relates in particular to a kind of hydraulic pressure test decompressor of multilevel control mouth.
Background technique
For the hydraulic equipment of rubber forming machine to the steel pipe water pressure test, must guarantee oil-water balance state in whole hydrostatic test process, must guarantee that in this process Simultaneous Pressure changes, otherwise can occur steel pipe is damaged by pressure compressive strain and do not reach the purpose of pressure testing.General operation is that at oil pressure mouth dress proportional pressure-reducing valve or proportional pressure control valve, pressure transducer gathers the pressure data of water pump mouth at water pump mouth dress pressure transducer, pass to PLC, PLC sends instructions to Proportional valve again, produces an oil pressure that is slightly larger than hydraulic pressure, keeps this oil-water balance.At first, in keeping the process of balance, drain tap with go out oil pocket when carrying out work owing to minute be in the half different chamber of valve body both sides, pressure separately and oil circuit situation also just can't be judged easily; Secondly, because the control mouth of this experimental facilities is arranged on the spool upper-end surface usually, with respect to into and out of oily condition and spool lower end surface then without stable means of testing, this can affect the original pressure balance of valve inner chamber portion and oil extraction efficient, also affects test effect.
The model utility content
The purpose of this utility model provides and has a kind ofly set up, oil-feed control mouthful, be conducive to keep the oil-water balance requirement, be convenient to going out the hydraulic pressure test decompressor of the multilevel control mouth of testing at the positions such as oil pocket, drain tap, spool two ends, to solve many deficiencies of prior art.
The purpose of this utility model is come specific implementation by the following technical programs:
A kind of hydraulic pressure test decompressor of multilevel control mouth comprises valve body and spool, and the valve inner center position arranges spool, is positioned at the center spool position and is provided with an oil suction chamber; The valve body bottom that is positioned at the spool lower end surface arranges a discharge side, and a described center spool chamber wherein side arranges one section and goes out oil pocket and this and go out the oil pocket outer end and extend in the discharge side; The spool lower end surface that is positioned at the discharge side inboard is provided with spool lower end surface control mouthful, is positioned at that the oil suction chamber below arranges one section oil-feed control mouthful and this oil-feed control mouthful inner end connects a spool central lumen.
Described spool lower end surface control is mouthful at drain tap and go out between the oil pocket bottom port, is positioned at that position, spool upper-end surface arranges one section drain tap and this drain tap outer end extends to discharge side.
The beneficial effect of the hydraulic pressure test decompressor of multilevel control mouth described in the utility model is: by with drain tap with go out the oil pocket oil circuit and cause respectively in the discharge side of valve body bottom, set up respectively simultaneously a control mouth at oil suction chamber, this two place, spool lower end surface, be convenient to test going out the positions such as oil pocket, drain tap, spool two ends, in the process of maintenance oil-water balance experiment, can guarantee that oil circuit flows to complete direction according to hydrostatic test control mouth and carries out.
Description of drawings
The below is described in further detail the utility model with embodiment with reference to the accompanying drawings.
Fig. 1 is the structural drawing of the hydraulic pressure test decompressor of the described multilevel control mouth of the utility model embodiment.
Among the figure: 1, valve body; 2, drain tap; 3, go out oil pocket; 4, oil suction chamber; 5, master control donsole; 6, spool; 7, discharge side; 8, oil-feed control mouth; 9, spool lower end surface control mouth.
Embodiment
As shown in Figure 1, the hydraulic pressure test decompressor of the described multilevel control mouth of the utility model embodiment, comprise valve body 1 and spool 6, described valve body 1 inside center position arranges spool 6, be positioned at valve body 1 wherein the inner chamber of an end one section control mouthfuls 5 is set, be positioned at spool 6 center portions and offer an oil suction chamber 4; Need emphasis to be pointed out that, valve body 1 bottom that is positioned at spool 6 lower end surfaces arranges the rectangular structure of a discharge side 7 and this discharge side 7 cross sections, described spool 6 a central lumen wherein side arrange one section and go out oil pocket 3 and this and go out oil pocket 3 outer ends and extend in the discharge side 7, are positioned at that position, spool 6 upper-end surface arranges one section drain tap 2 and this drain tap 2 outer ends extend to discharge side 7; Spool 6 lower end surfaces that are positioned at discharge side 7 inboards are provided with spool lower end surface control mouth 9, be positioned at oil suction chamber 4 belows one section oil-feed control mouth 8 and this oil-feed control mouthful 8 inner ends connection spool, 6 central lumen are set, be convenient to test going out the positions such as oil pocket, drain tap, spool two ends, in the process of maintenance oil-water balance experiment, can guarantee that oil circuit flows to complete direction according to hydrostatic test control mouth and carries out.
Claims (3)
1. the hydraulic pressure test decompressor of a multilevel control mouth comprises valve body (1) and spool (6), and valve body (1) inside center position arranges spool (6), it is characterized in that: be positioned at spool (6) center portion and be provided with an oil suction chamber (4); Valve body (1) bottom that is positioned at spool (6) lower end surface arranges a discharge side (7), and described spool (a 6) central lumen wherein side arranges one section and goes out oil pocket (3) and this and go out oil pocket (3) outer end and extend in the discharge side (7); Be positioned at inboard spool (6) lower end surface of discharge side (7) and be provided with spool lower end surface control mouthful (9), be positioned at that oil suction chamber (4) below arranges one section oil-feed control mouthful (8) and this oil-feed control mouthful (8) inner end connects spool (a 6) central lumen.
2. the hydraulic pressure test decompressor of a kind of multilevel control mouth as claimed in claim 1 is characterized in that: described spool lower end surface control mouthful (9) is positioned at drain tap (2) and goes out between oil pocket (3) bottom port.
3. the hydraulic pressure test decompressor of a kind of multilevel control mouth as claimed in claim 1 is characterized in that: be positioned at that spool (6) position, upper-end surface arranges one section drain tap (2) and this drain tap (2) outer end extends to discharge side (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567019 CN202867382U (en) | 2012-10-31 | 2012-10-31 | Water pressure test pressure-relief device with multi-stage control ports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567019 CN202867382U (en) | 2012-10-31 | 2012-10-31 | Water pressure test pressure-relief device with multi-stage control ports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867382U true CN202867382U (en) | 2013-04-10 |
Family
ID=48034105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220567019 Expired - Fee Related CN202867382U (en) | 2012-10-31 | 2012-10-31 | Water pressure test pressure-relief device with multi-stage control ports |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996546A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Water pressure test decompressing device with multi-stage control ports |
-
2012
- 2012-10-31 CN CN 201220567019 patent/CN202867382U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996546A (en) * | 2012-10-31 | 2013-03-27 | 无锡鸿声铝业有限公司 | Water pressure test decompressing device with multi-stage control ports |
| CN102996546B (en) * | 2012-10-31 | 2016-06-08 | 无锡鸿声铝业有限公司 | A kind of hydraulic pressure test decompressor of Multistage Control mouth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20131031 |