CN203323945U - Liquid piston type pressure gauge - Google Patents
Liquid piston type pressure gauge Download PDFInfo
- Publication number
- CN203323945U CN203323945U CN2013203264290U CN201320326429U CN203323945U CN 203323945 U CN203323945 U CN 203323945U CN 2013203264290 U CN2013203264290 U CN 2013203264290U CN 201320326429 U CN201320326429 U CN 201320326429U CN 203323945 U CN203323945 U CN 203323945U
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- China
- Prior art keywords
- piston
- pressure gauge
- base
- pump
- measuring system
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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.)
- Expired - Lifetime
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Abstract
The utility model discloses a liquid piston type pressure gauge. An oil cup is successively connected with a pre-press pump, a stop valve and a booster pump through an oil inlet pipeline. The booster pump is connected with a pressure relief valve and the oil cup through an oil return pipeline, so as to form a complete liquid loop. The booster pump is further connected with a piston measurement system. The booster pump is further connected with a fast joint. A high precision displacement sensor which is connected with a work balance position indicator and is used for detecting the piston displacement is arranged in the piston measurement system. According to the utility model, the complete machine has the advantages of concise and beautiful structure and low weight gravity center, and ensures the stability of the piston measurement system; whether a piston is at a balance position can be precisely measured and a numerical value can be effectively read, so that prompt correction can be carried out; in a use process, the pre-press pump is used to carry out pressing, and then the booster pump is used to carry out boosting, so that the portability of pressing in a high measurement range is ensured; and the piston measurement system is made of a hard material and is able to maintain the stability of the pressure gauge.
Description
Technical field
The utility model instrument field, relate to a kind of pressure gauge, is specifically related to a kind of fluid piston type pressure gauge.
Background technology
In the conventional piston pressure gauge, usually adopt exposed structure, all parts and components all are placed on the instrument table top, the counterweight load mode belongs to the support formula, in pressure process, along with pressure increases, center of gravity can constantly increase, and during the counterweight rotation, easily causes rod fracture and counterweight to fall.The working position indication belongs to simple and mechanical indication, in the adjustment process, can not grasp accurately rising and the decline situation of piston system.Make pressing system and belong to the direct supercharging of force (forcing) pump, when the high range scope is used, pressure is larger, suppresses more difficult.Measuring system belongs to common alloy steel material makes, and in use deformation coefficient is larger, and counterbalance mass need be considered the deformation coefficient correction, makes each piece counterbalance mass all different, during use, must place in order.
Summary of the invention
The deficiency existed for prior art, the purpose of this utility model is, a kind of precision, stable, easy to operate, modular fluid piston type pressure gauge are provided, and this pressure gauge is easy and simple to handle, and sealing is good, and stability is high.
In order to realize above-mentioned task, the utility model adopts following technical scheme to be achieved:
A kind of fluid piston type pressure gauge, the base that comprises volute type structure, upper surface at base is equipped with rapid-acting coupling, piston measuring system and lubricating cup, be equipped with on the piston measuring system and hang blue bearing-type counterweight assembly, lower surface at base is equipped with level governor, and supercharge pump and work equilibrium position indicator are installed in the front of base 3, in a side of base, blowdown valve is installed, opposite side at base is equipped with pre-press pump and stop valve, wherein:
Lubricating cup is connected with pre-press pump, stop valve and supercharge pump successively by inflow pipeline, supercharge pump is connected with blowdown valve and lubricating cup by return line, form a complete fluid loop, supercharge pump also is connected with the piston measuring system, also is connected with rapid-acting coupling on supercharge pump;
In described piston measuring system, be equipped with for surveying the high accuracy displacement sensor of piston displacement, high accuracy displacement sensor is connected with work equilibrium position indicator.
The utility model also has following technical characterictic:
On the oil-in of described inflow pipeline, screen pack is installed.
Described high accuracy displacement sensor adopts differential transformer displace￣ ment transducer.
Described piston measuring system adopts tungsten carbide material to make.
Compared with prior art, useful technique effect is the utility model:
(1) base of the present utility model adopts brand-new volute type structure, and complete machine structure is succinct, attractive in appearance.
(2) the counterweight load mode adopts and hangs blue bearing-type, and in the pressurization use procedure, the center of gravity of counterweight greatly reduces than traditional approach, fully guarantees the stability of piston measuring system.
(3) adopt high-precision displacement transducer accurately to measure the whether position in the balance place of piston, and indicate by work equilibrium position indicator, in use can observe at any time rising and the decline situation of piston measuring system, and can effectively read decline numerical value, thereby corrected in time.
(4) in use first adopt pre-press pump pressurization, then adopt the supercharge pump supercharging, guaranteed the portability of pressurizeing in the high range scope.
(5) the piston measuring system adopts tungsten carbide material to make, and its material property deformation coefficient is little, and hardness is high, in use can keep manometric stability, loads counterweight also without the modification of the deflection of considering.Make the counterbalance mass of uniform pressure identical, do not need to place in order, greatly alleviated operator's labour intensity.
The accompanying drawing explanation
Fig. 1 is Facad structure schematic diagram of the present utility model.
Fig. 2 is pipeline annexation schematic diagram of the present utility model.
In figure, the implication of each label is: 1-counterweight assembly, 2-piston measuring system, 3-base, the 4-blowdown valve, 5-level governor, 6-work equilibrium position indicator, the 7-supercharge pump, the 8-lubricating cup, 9-stop valve, the pre-press pump of 10-, 11-rapid-acting coupling, the 12-inflow pipeline, 13-oil returning tube, 14-high accuracy displacement sensor.
Below in conjunction with drawings and Examples, particular content of the present utility model is described in more detail.
Embodiment
Below provide specific embodiment of the utility model, it should be noted that the utility model is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
Defer to technique scheme, as depicted in figs. 1 and 2, the present embodiment provides a kind of fluid piston type pressure gauge, the base 3 that comprises volute type structure, upper surface at base 3 is equipped with rapid-acting coupling 11, piston measuring system 2 and lubricating cup 8, be equipped with on piston measuring system 2 and hang blue bearing-type counterweight assembly 1, lower surface at base 3 is equipped with level governor 5, supercharge pump 7 and work equilibrium position indicator 6 are installed in the front of base 3, a side at base 3 is equipped with blowdown valve 4, opposite side at base 3 is equipped with pre-press pump 10 and stop valve 9, wherein:
Lubricating cup 8 is connected with pre-press pump 10, stop valve 9 and supercharge pump 7 successively by inflow pipeline 12, supercharge pump 7 is connected with blowdown valve 4 and lubricating cup 8 by return line 13, form a complete fluid loop, supercharge pump 7 goes back and piston measuring system 2 is connected, and also is connected with rapid-acting coupling 11 on supercharge pump 7;
High accuracy displacement sensor 14 for surveying piston displacement is installed in described piston measuring system 2, and high accuracy displacement sensor 14 is connected with work equilibrium position indicator 6.
On the oil-in of inflow pipeline 12, screen pack is installed, guarantees the cleaning of medium.
High accuracy displacement sensor 14 adopts differential transformer displace￣ ment transducer.It is that edge has a winding, and secondary has the opening transformer of two windings that connect by differential mode.One movable core is arranged on the transformer opening, and this iron core makes magnetic circuit change while producing displacement, thereby output differential voltage is changed thereupon.Its output voltage and iron core displacement are linear and very sensitive.
Piston measuring system 2 adopts tungsten carbide materials to make, and this material property deformation coefficient is little, and hardness is high, and stability that in use can keeping system loads counterweight also without the modification of the deflection of considering.Make the counterbalance mass of uniform pressure identical, do not need to place in order, greatly alleviated operator's labour intensity.
The course of work of the present utility model is as described below:
By add pressure transmitting medium oil in lubricating cup 8, be connected to inflow pipeline 12 and oil returning tube 13 in lubricating cup 8, and the oil-in of inflow pipeline 12 guarantees the cleaning of medium with screen pack.Base 3 left sides are equipped with blowdown valve 4, close and open the state that can control return line 13.Base 3 right sides are furnished with pre-press pump 10 and stop valve 9, by 10 pairs of systems of pre-press pump, carry out the generation of original pressure, after precompressed completes, close stop valve 9, and with stablizing of original pressure in the assurance system, rapid-acting coupling 11 is for being connected fast with external unit.Supercharge pump 7 and work equilibrium position indicator 6 are equipped with in base 3 fronts, high accuracy displacement sensor 14 is installed in piston measuring system 2 for detection of the displacement of piston and displacement signal is passed to work equilibrium position indicator 6 and become the information can read, after precompressed finishes, by supercharge pump 7, pressurizeed, observation work equilibrium position indicator 6, reach required force value.
In use, add Medium Oil in lubricating cup 8, close blowdown valve 4, repeatedly lift pre-press pump 10 and carry out precharge, while in pipeline, being full of Medium Oil, precompressed finishes, and closes stop valve 9, dextrorotation supercharge pump 7 carries out supercharging, observation work equilibrium position indicator 6, when pointer refers in the middle of dial plate, be and arrive working position.
Claims (4)
1. a fluid piston type pressure gauge, it is characterized in that, the base (3) that comprises volute type structure, upper surface at base (3) is equipped with rapid-acting coupling (11), piston measuring system (2) and lubricating cup (8), be equipped with on piston measuring system (2) and hang blue bearing-type counterweight assembly (1), lower surface at base (3) is equipped with level governor (5), supercharge pump (7) and work equilibrium position indicator (6) are installed in the front of base (3), a side at base (3) is equipped with blowdown valve (4), opposite side at base (3) is equipped with pre-press pump (10) and stop valve (9), wherein:
Lubricating cup (8) is connected with pre-press pump (10), stop valve (9) and supercharge pump (7) successively by inflow pipeline (12), supercharge pump (7) is connected with blowdown valve (4) and lubricating cup (8) by return line (13), form a complete fluid loop, supercharge pump (7) is gone back and piston measuring system (2) is connected, and also is connected with rapid-acting coupling (11) on supercharge pump (7);
High accuracy displacement sensor (14) for surveying piston displacement is installed in described piston measuring system (2), and high accuracy displacement sensor (14) is connected with work equilibrium position indicator (6).
2. fluid piston type pressure gauge as claimed in claim 1, is characterized in that, on the oil-in of described inflow pipeline (12), screen pack is installed.
3. fluid piston type pressure gauge as claimed in claim 1, is characterized in that, described high accuracy displacement sensor (14) adopts differential transformer displace￣ ment transducer.
4. fluid piston type pressure gauge as claimed in claim 1, is characterized in that, described piston measuring system (2) adopts tungsten carbide material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203264290U CN203323945U (en) | 2013-06-06 | 2013-06-06 | Liquid piston type pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203264290U CN203323945U (en) | 2013-06-06 | 2013-06-06 | Liquid piston type pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323945U true CN203323945U (en) | 2013-12-04 |
Family
ID=49663285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203264290U Expired - Lifetime CN203323945U (en) | 2013-06-06 | 2013-06-06 | Liquid piston type pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203323945U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764555A (en) * | 2015-03-03 | 2015-07-08 | 西安西德仪器仪表有限公司 | Full-automatic piston type pressure gauge |
| CN105043660A (en) * | 2015-09-15 | 2015-11-11 | 苏州普京真空技术有限公司 | Piston type vacuum pressure gauge |
| CN109540370A (en) * | 2018-12-04 | 2019-03-29 | 上海敏榆实业有限公司 | A kind of straight top type ultrahigh pressure piston type pressure gauge raised the price automatically |
| CN109540369A (en) * | 2018-12-04 | 2019-03-29 | 上海敏榆实业有限公司 | A kind of pure gas minute-pressure differential piston pressure gauge |
-
2013
- 2013-06-06 CN CN2013203264290U patent/CN203323945U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764555A (en) * | 2015-03-03 | 2015-07-08 | 西安西德仪器仪表有限公司 | Full-automatic piston type pressure gauge |
| CN105043660A (en) * | 2015-09-15 | 2015-11-11 | 苏州普京真空技术有限公司 | Piston type vacuum pressure gauge |
| CN109540370A (en) * | 2018-12-04 | 2019-03-29 | 上海敏榆实业有限公司 | A kind of straight top type ultrahigh pressure piston type pressure gauge raised the price automatically |
| CN109540369A (en) * | 2018-12-04 | 2019-03-29 | 上海敏榆实业有限公司 | A kind of pure gas minute-pressure differential piston pressure gauge |
| CN109540370B (en) * | 2018-12-04 | 2020-07-14 | 上海敏榆实业有限公司 | Automatic add straight top formula superhigh pressure piston pressure gauge of sign indicating number |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210108 Address after: No.229 Daqing Road, Lianhu District, Xi'an City, Shaanxi Province, 710082 Patentee after: XIYI Co.,Ltd. Address before: No.229 Daqing Road, Xi'an, Shaanxi 710082 Patentee before: XIYI GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
|
| CX01 | Expiry of patent term |