CN203422193U - Plastic solenoid valve seat used for differential leak detector - Google Patents
Plastic solenoid valve seat used for differential leak detector Download PDFInfo
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- CN203422193U CN203422193U CN201320457090.8U CN201320457090U CN203422193U CN 203422193 U CN203422193 U CN 203422193U CN 201320457090 U CN201320457090 U CN 201320457090U CN 203422193 U CN203422193 U CN 203422193U
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- electromagnetic valve
- plastic electromagnetic
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- valve
- solenoid valve
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Abstract
The utility model relates to a plastic solenoid valve seat used for a differential leak detector, for solving the defect of detection incapability of the differential leak detector due to over rapid heat conduction of a solenoid valve seat by use of a metal solenoid valve in the prior art. The plastic solenoid valve seat comprises a valve plate, and an exhaust joint, a gas source inlet joint, a detected end joint and a standard end joint which are fixedly installed on the valve plate. The p plastic solenoid valve seat is characterized by further comprising an intake and exhaust plastic solenoid valve, a detected end balanced plastic solenoid valve and a standard end balanced plastic solenoid valve, wherein the exhaust joint and the gas source inlet joint are respectively connected with the intake and exhaust plastic solenoid valve; the intake and exhaust plastic solenoid valve is respectively connected with the detected end balanced plastic solenoid valve and the standard end balanced plastic solenoid valve; the detected end balanced plastic solenoid valve is connected with the detected end joint; and the standard end balanced plastic solenoid valve is connected with the standard end joint. By using the plastic solenoid valve seat used for the differential leak detector, heat is not easily transmitted to the valve plate through adiabatic plastics so that the accuracy of leakage detection is guaranteed.
Description
Technical field
The utility model relates to solenoid valve valve seat technical field, is a kind of plastic electromagnetic valve valve seat for differential leak detector specifically.
Background technology
On differential leak detector, to measurand, control monitoring by solenoid valve valve seat at present.The solenoid valve using on traditional solenoid valve valve seat is metal electric magnet valve, metal electromagnetic valve coil produces a large amount of heats in use, and heat is delivered on the valve plate that solenoid valve is installed fast, making the differential leak detector random variation at zero point that detects, cannot hunt leak.When low pressure is used metal electric magnet valve, detected pressures can only be accomplished 20kPa, and detected pressures is high more cannot be detected.Although there is part utilization Pneumatic valve to solve the problem of temperature impact, in the time of with Pneumatic valve, also will control Pneumatic valve by solenoid valve, and pneumatic element used is many, cost is high, control is complicated, cause solenoid valve valve seat reliability decrease.How to develop a kind of solenoid valve valve seat simple in structure, with low cost, that can release electromagnetic valve heat conduct on valve plate and become urgent problem.
Utility model content
The purpose of this utility model is too fast to solenoid valve valve seat heat-transfer rate in order to solve in prior art metal electric magnet valve, and the defect that differential leak detector cannot detect, provides a kind of plastic electromagnetic valve valve seat for differential leak detector to solve the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of plastic electromagnetic valve valve seat for differential leak detector, comprise valve plate and be fixedly mounted on respectively the exhaust joint on valve plate, gas source inlet joint, tested end connector, normal end joint, also comprise the intake and exhaust plastic electromagnetic valve being fixedly mounted on respectively on valve plate, tested weighing apparatus plastic electromagnetic valve and the normal end balance plastic electromagnetic valve of holding level with both hands, described exhaust joint and source of the gas inlet union access respectively intake and exhaust plastic electromagnetic valve, described intake and exhaust plastic electromagnetic valve is connected with normal end balance plastic electromagnetic valve with the tested weighing apparatus plastic electromagnetic valve of holding level with both hands respectively, the tested weighing apparatus plastic electromagnetic valve of holding level with both hands connects tested end connector, normal end balance plastic electromagnetic valve connection standard end connector.
Also comprise the differential pressure pick-up and the positive/negative-pressure detected pressures sensor that are fixedly mounted on respectively on valve plate, described differential pressure pick-up is connected to tested holding level with both hands between weighing apparatus plastic electromagnetic valve and normal end balance plastic electromagnetic valve, and described positive/negative-pressure detected pressures sensor is connected with the tested weighing apparatus plastic electromagnetic valve of holding level with both hands.
Also comprise differential leak detector electric controller, described intake and exhaust plastic electromagnetic valve, testedly hold weighing apparatus plastic electromagnetic valve, normal end balance plastic electromagnetic valve level with both hands, differential pressure pick-up is connected with differential leak detector electric controller respectively with positive/negative-pressure detected pressures sensor.
Described intake and exhaust plastic electromagnetic valve is two-bit triplet plastic electromagnetic valve, described testedly holds weighing apparatus plastic electromagnetic valve level with both hands and normal end balance plastic electromagnetic valve is two two-way plastic electromagnetic valves.
The model of described intake and exhaust plastic electromagnetic valve is LVM205R-5A, and the described tested model of holding weighing apparatus plastic electromagnetic valve and normal end balance plastic electromagnetic valve level with both hands is LVM20R4-5A.
beneficial effect
A kind of plastic electromagnetic valve valve seat for differential leak detector of the present utility model, the heat that compared with prior art plastic electromagnetic valve produces is little, and heat is more difficult to be delivered on valve plate by adiabatic plastics, has guaranteed the accurate of Leak Detection.Valve plate detects more easily zeroing, and ambient temperature changes Leak Detection without impact.Plastic electromagnetic valve has the feature that frequency of operation is high, and positive/negative-pressure can form electric Proportion valve while detecting the acting in conjunction of positive/negative-pressure detected pressures sensor, has saved cost.Because valve seat volume reduces, weight saving, realized differential leak detector miniaturization.
accompanying drawing explanation
Fig. 1 is principle assumption diagram of the present utility model
Fig. 2 is product structure figure of the present utility model
Wherein,, 1-valve plate, 2-gas source inlet joint, 3-intake and exhaust plastic electromagnetic valve, tested weighing apparatus plastic electromagnetic valve, 5-normal end balance plastic electromagnetic valve, 6-differential pressure pick-up, 7-positive/negative-pressure detected pressures sensor, 8-normal end joint, the tested end connector of 9-, 10-differential leak detector electric controller, the 11-exhaust joint of holding level with both hands of 4-.
Embodiment
For making that architectural feature of the present utility model and the effect reached are had a better understanding and awareness, in order to preferred embodiment and accompanying drawing, coordinate detailed explanation, be described as follows:
As depicted in figs. 1 and 2, a kind of plastic electromagnetic valve valve seat for differential leak detector described in the utility model, comprises valve plate 1 and is fixedly mounted on respectively exhaust joint 11, gas source inlet joint 2, tested end connector 9, the normal end joint 8 on valve plate 1.Intake and exhaust plastic electromagnetic valve 3, tested weighing apparatus plastic electromagnetic valve 4 and the normal end balance plastic electromagnetic valve 5 of holding level with both hands are fixedly mounted on valve plate 1 respectively equally.Intake and exhaust plastic electromagnetic valve 3 is two-bit triplet plastic electromagnetic valve, and model is LVM205R-5A.Tested weighing apparatus plastic electromagnetic valve 4 and the normal end balance plastic electromagnetic valve 5 of holding level with both hands is two two-way plastic electromagnetic valves, and model is LVM20R4-5A.Exhaust joint 11 and source of the gas inlet union 2 access respectively intake and exhaust plastic electromagnetic valve 3, intake and exhaust plastic electromagnetic valve 3 is connected with normal end balance plastic electromagnetic valve 5 with the tested weighing apparatus plastic electromagnetic valve 4 of holding level with both hands respectively, the tested weighing apparatus plastic electromagnetic valve 4 of holding level with both hands connects tested end connector 9, normal end balance plastic electromagnetic valve 5 connection standard end connectors 8, above access all connects access by pipeline.
When measuring, also comprise and be fixedly mounted on differential pressure pick-up 6 and positive/negative-pressure detected pressures sensor 7 on valve plate 1, differential pressure pick-up 6 is connected in tested management of holding level with both hands between weighing apparatus plastic electromagnetic valve 4 and normal end balance plastic electromagnetic valve 5, thereby can differential pressure measuring.Positive/negative-pressure detected pressures sensor 7 is connected with the tested weighing apparatus plastic electromagnetic valve 4 of holding level with both hands, carries out positive/negative-pressure detection.For easy to operate and robotization use in differential leak detector, can also comprise differential leak detector electric controller 10, intake and exhaust plastic electromagnetic valve 3, testedly hold weighing apparatus plastic electromagnetic valve 4, normal end balance plastic electromagnetic valve 5 level with both hands, differential pressure pick-up 6 is connected by signal control line with differential leak detector electric controller 10 respectively with positive/negative-pressure detected pressures sensor 7.By differential leak detector electric controller 10, just can control each plastic electromagnetic valve 5 like this, and can directly read the data on differential pressure pick-up 6 and positive/negative-pressure detected pressures sensor 7.
When reality is used, air-source inflow joint 2 can connect malleation source of the gas according to actual needs, also can connect negative pressure source of the gas.Intake and exhaust plastic electromagnetic valve 3, when "on" position, is to find time to gas circuit inflation or negative pressure.Tested weighing apparatus plastic electromagnetic valve 4 and the normal end balance plastic electromagnetic valve 5 of holding level with both hands, when inflation or negative pressure find time to finish, closed simultaneously, and the tested container that the volumetric standard like this normal end joint 8 being connect and tested end connector 9 connect is divided into two independently air chambers.If tested end workpiece leaks, the pressure of tested end connector 8 can decline, and differential pressure pick-up 6 can detect this small variation, thereby detects leakage.Utilize positive/negative-pressure detected pressures sensor 7 can substitute precise pressure-reducing valve or vacuum regulating valve, only need to be in inflation or evacuation process, utilize pressure ratio that the detection signal of positive/negative-pressure detected pressures sensor 7 and differential leak detector electric controller 10 arrange, when reaching inflation when force value is set, finish.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and instructions, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (5)
1. the plastic electromagnetic valve valve seat for differential leak detector, comprise valve plate (1) and be fixedly mounted on respectively the exhaust joint (11) on valve plate (1), gas source inlet joint (2), tested end connector (9), normal end joint (8), it is characterized in that: also comprise the intake and exhaust plastic electromagnetic valve (3) being fixedly mounted on respectively on valve plate (1), tested weighing apparatus plastic electromagnetic valve (4) and the normal end balance plastic electromagnetic valve (5) of holding level with both hands, described exhaust joint (11) and source of the gas inlet union (2) access respectively intake and exhaust plastic electromagnetic valve (3), described intake and exhaust plastic electromagnetic valve (3) is connected with normal end balance plastic electromagnetic valve (5) with the tested weighing apparatus plastic electromagnetic valve (4) of holding level with both hands respectively, the tested weighing apparatus plastic electromagnetic valve (4) of holding level with both hands connects tested end connector (9), normal end balance plastic electromagnetic valve (5) connection standard end connector (8).
2. a kind of plastic electromagnetic valve valve seat for differential leak detector according to claim 1, it is characterized in that: also comprise the differential pressure pick-up (6) and the positive/negative-pressure detected pressures sensor (7) that are fixedly mounted on respectively on valve plate (1), described differential pressure pick-up (6) is connected to tested holding level with both hands between weighing apparatus plastic electromagnetic valve (4) and normal end balance plastic electromagnetic valve (5), and described positive/negative-pressure detected pressures sensor (7) is connected with the tested weighing apparatus plastic electromagnetic valve (4) of holding level with both hands.
3. a kind of plastic electromagnetic valve valve seat for differential leak detector according to claim 2, it is characterized in that: also comprise differential leak detector electric controller (10), described intake and exhaust plastic electromagnetic valve (3), testedly hold weighing apparatus plastic electromagnetic valve (4), normal end balance plastic electromagnetic valve (5) level with both hands, differential pressure pick-up (6) is connected with differential leak detector electric controller (10) respectively with positive/negative-pressure detected pressures sensor (7).
4. a kind of plastic electromagnetic valve valve seat for differential leak detector according to claim 1, it is characterized in that: described intake and exhaust plastic electromagnetic valve (3) is two-bit triplet plastic electromagnetic valve, described testedly hold weighing apparatus plastic electromagnetic valve (4) level with both hands and normal end balance plastic electromagnetic valve (5) is two two-way plastic electromagnetic valves.
5. a kind of plastic electromagnetic valve valve seat for differential leak detector according to claim 1, it is characterized in that: the model of described intake and exhaust plastic electromagnetic valve (3) is LVM205R-5A, the described tested model of holding weighing apparatus plastic electromagnetic valve (4) and normal end balance plastic electromagnetic valve (5) level with both hands is LVM20R4-5A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457090.8U CN203422193U (en) | 2013-07-30 | 2013-07-30 | Plastic solenoid valve seat used for differential leak detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457090.8U CN203422193U (en) | 2013-07-30 | 2013-07-30 | Plastic solenoid valve seat used for differential leak detector |
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| Publication Number | Publication Date |
|---|---|
| CN203422193U true CN203422193U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320457090.8U Expired - Fee Related CN203422193U (en) | 2013-07-30 | 2013-07-30 | Plastic solenoid valve seat used for differential leak detector |
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| CN (1) | CN203422193U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502036A (en) * | 2014-09-18 | 2015-04-08 | 浙江万向精工有限公司 | ABS middle-and-low voltage test apparatus and test method |
-
2013
- 2013-07-30 CN CN201320457090.8U patent/CN203422193U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502036A (en) * | 2014-09-18 | 2015-04-08 | 浙江万向精工有限公司 | ABS middle-and-low voltage test apparatus and test method |
| CN104502036B (en) * | 2014-09-18 | 2017-11-21 | 浙江万向精工有限公司 | ABS mesolows test device and its method of testing |
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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: 20140205 Termination date: 20170730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |