CN105067203B - A kind of valve body automatic detection device and its method - Google Patents

A kind of valve body automatic detection device and its method Download PDF

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Publication number
CN105067203B
CN105067203B CN201510472760.7A CN201510472760A CN105067203B CN 105067203 B CN105067203 B CN 105067203B CN 201510472760 A CN201510472760 A CN 201510472760A CN 105067203 B CN105067203 B CN 105067203B
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China
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pneumatic
valve
corking
countercylinder
pipe mouth
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CN201510472760.7A
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Chinese (zh)
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CN105067203A (en
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刘德九
徐三友
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黄山市屯溪工程塑料厂
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Publication of CN105067203A publication Critical patent/CN105067203A/en
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Abstract

The invention discloses a kind of valve body automatic detection device, the electric control system of machine operating system action during the machine operating system and Control experiment that block and inflate including being used to implement valve inleting water nozzle and effluent pipe mouth.The invention also discloses a kind of valve body automatic testing methods, process steps, action and the time detected according to drain valve, it is incorporated into programmable controller as required, corresponding relay is controlled by programmable controller output order, pneumatic device is made to complete required action by program with moving electromagnetic valve, achieve the purpose that detect automatically.The present invention is automatically performed the action of each step using the first pneumatic mechanism of program control, the second pneumatic mechanism, automatically control inflationtime and dwell time, automatic detection air pressure change so as to judge that its is qualified or not, is completed from manually to machine, from manually to automatic change;Meanwhile the present apparatus changes immersion detection mode traditional for many years, completes the change from " wet " to " dry ".

Description

A kind of valve body automatic detection device and its method

Technical field

The present invention relates to a kind of valve body automatic detection devices more particularly to a kind of drain valve of non-soaking type detection to examine automatically Survey device and its detection method.

Background technology

Drain valve is important component in automatic washing machine, with the continuous improvement of people's living standards, to high-grade household The demand of electric appliance is increasingly improving, the market demand of automatic washing machine also in rapid growth, but the factory testing of drain valve this One important link is but into the bottleneck for restricting output increased.

At present, the detection of industry internal drainage valve still uses original bowssening manual inspection, i.e.,:Manually respectively by draining The inlet and outlet of valve block, then respectively to being filled with authorized pressure in drain valve influent side valve chamber and water outlet side valve chamber Compressed air, then by inflation valve body be entirely immersed in the water, and keep the several seconds in water, depending on its whether bubbling, so as to judge to close Whether lattice.It was verified that there are following defects for above-mentioned detection mode:

1st, due to being that immersion is examined, workplace must have several tanks, and workpiece, which is brought into when taking out, to drip on the ground all It is water, causes workplace moist.

2nd, operator's labor intensity is big.During operation, several individuals fill in block up son, inflation round water-butt, on the other hand Valve is held, one holds tracheae, is then immersed in the water valve, keeps in water certain time, then drain valve is taken out, sheds plug And tracheae, valve body a series of loaded down with trivial details processes such as is dried into, and in cold winter, both hands are immersed directly in icy water In, it is difficult to receive.

3rd, the consistency of the examination and test of products is poor.Inspection result is easily affected by human factors, and the time that workpiece is soaked in water is difficult to Ensure, especially winter, in the time kept in water, it is impossible to ensure the sight of operator without departing from workpiece, so, it easily causes The missing inspection of product and flase drop.

4th, working efficiency is low.If aforementioned hand test must complete multiple steps, a people can only once examine a valve, lead Inefficiency is caused, and ineffective.

In consideration of it, how to provide, a kind of detection efficiency is high, consistency is good, while improves the automatic detection of labor intensity Device, it has also become the technical issues of this field is urgently to be resolved hurrily.

Invention content

In order to overcome the above problem, the present invention provides a kind of valve body automatic detection device, it is intended to reform existing immersion detection Mode, solve that existing detection mode labor intensity is big, working efficiency is low, testing result is easily affected by human factors, Yi Jijian Survey the problems such as parameter consistency is poor.

The technical solution adopted by the present invention to solve the technical problems is:A kind of valve body automatic detection device, including using The machinery behaviour during the machine operating system and Control experiment that valve inleting water nozzle and effluent pipe mouth are blocked and inflated is realized Make the electric control system of system acting.

Wherein, machine operating system is included for the fixed frame that disposes valve body, and the above the water inlet pipe mouth of valve body One pneumatic mechanism and the second pneumatic mechanism positioned at the effluent pipe mouth side of valve body.

First pneumatic mechanism includes the first master cylinder, the first cylinder linkage that can be moved up and down under the drive of the first master cylinder Plate, the first pneumatic corking being adapted on the first cylinder linkage board and with water inlet pipe mouth and the first countercylinder.This One countercylinder is connected by the first push rod with the first pneumatic corking, on the side wall of the first push rod be equipped with the first inflating port, first The bottom of pneumatic corking is provided with the first stomata communicated with the first inflating port.Preferably, the lower part of above-mentioned first push rod is equipped with First groove briquetting, at the outer rim of the first pneumatic corking be equipped with matched first O-ring seal of the first groove briquetting, on State the first countercylinder for drive the first groove briquetting axially move, the first groove briquetting is right under the action of the first countercylinder First O-ring seal compresses axially, and is allowed to be radially expanded, to reach between the first pneumatic corking outer diameter and water inlet pipe mouth internal diameter The effect being fully sealed.Above structure is for detection of the completion to valve body import side.Preferably, for convenience of the fortune of the first master cylinder It is dynamic, further include the first master cylinder guide rail being vertically arranged.

Second pneumatic mechanism include the second master cylinder, the second master cylinder drive under can side-to-side movement the second cylinder linkage Plate, the second pneumatic corking being adapted on the second cylinder linkage board and with effluent pipe mouth and the second countercylinder.This Two countercylinders are connected by the second push rod with the second pneumatic corking, on the side wall of the second push rod be equipped with the second inflating port, second The bottom of pneumatic corking is provided with the second stomata communicated with the second inflating port.Preferably, the lower part of above-mentioned second push rod is equipped with Second groove briquetting, at the outer rim of the second pneumatic corking be equipped with matched second O-ring seal of the second groove briquetting, on State the second countercylinder for drive the second groove briquetting make side-to-side movement, the second groove briquetting is right under the action of the second countercylinder Second O-ring seal makees transverse shear stress, is allowed to longitudinal dilatation, to reach between the second pneumatic corking outer diameter and effluent pipe mouth internal diameter The effect being fully sealed.Above structure is similar to the first pneumatic mechanism, for the detection to valve outlet side.To further improve The stability of action further includes the second master cylinder guide rail and the second countercylinder guide rail.

It is more electric that the electric control system includes Switching Power Supply, programmable controller, baroceptor, air pressure change Road, testing result display, relay group and solenoid valve block.Wherein, Switching Power Supply, for providing electrical control in test process Power supply needed for system.Programmable controller, for sending out signal in pre-set programs and then other components being controlled to act.After On the one hand electric appliance group receives the instruction of programmable controller output, is on the other hand connected with solenoid valve block so that pneumatic device is pressed Program acts needed for completing.Baroceptor, for the atmospheric pressure value of valve body import side or outlet side during detecting pressurize.Air pressure becomes Change comparison circuit, for the above-mentioned atmospheric pressure value detected to be compared, evaluating the value has unchanged, if air pressure is constant, sentences For qualification, on the contrary is unqualified.Testing result display, for testing result to be showed.The present invention is examined according to drain valve Process steps, action and the time of survey, it is incorporated into programmable controller as required, is controlled by programmable controller output order corresponding Relay, drive electromagnetic valve of gas circuit that pneumatic device is made to complete required action by program, achieve the purpose that detect automatically.

During work, the first master cylinder drive the first cylinder linkage board and on the first cylinder linkage board first Countercylinder, the first pneumatic corking move downwardly together, and then complete the action that the first pneumatic corking enters water inlet pipe mouth.Then, First countercylinder is started to work, and above-mentioned groove briquetting is pushed to move downward so that diameter becomes after the first O-ring seal is squeezed Greatly, turgor reaches sealing function between the first pneumatic corking outer diameter and water inlet pipe mouth internal diameter.Then, from the first inflating port to Body cavity is inflated to authorized pressure, and is kept for the pressure several seconds, during pressurize, detects its air pressure whether there is by baroceptor Variation, if air pressure is constant, is judged to qualification, otherwise is unqualified.The action of above series of is sent out by programmable controller The instruction gone out controls, and after influent side detection is completed, programmable controller can send out instruction, the at startup effluent pipe mouth Two pneumatic corkings start to act, and process, principle are identical with influent side.Finally, influent side and water outlet side are being respectively completed After detection, the detection of valve body is completed.

As a kind of this theme of valve body automatic testing method of the present invention, include the following steps:101st, start detection to press Button, the 102, first master cylinder work, the 103, first countercylinder work, 104, inflation pressurize, 105, baroceptor work, 106, Air pressure change comparison circuit work, 107, display testing result, the 108, first pneumatic mechanism reset, the 109, second master cylinder work Make, the work of the 110, second countercylinder, 111, inflation pressurize, 112, baroceptor work, 113, air pressure change comparison circuit work Make, 114, display testing result, the 115, second pneumatic mechanism reset, 116, detection terminate.

The present invention is automatically performed the action of each step using the first pneumatic mechanism of program control, the second pneumatic mechanism, automatically Inflationtime and dwell time are controlled, air pressure change is detected automatically, so as to judge that its is qualified or not, completes from manually to machine Device, from being changed manually to automatic;Meanwhile the present apparatus changes immersion detection mode traditional for many years, complete from " wet " to The change of " dry ".

In addition, it compared with prior art, the present invention the advantage is that:

1st, the labor intensity of worker is alleviated, in addition to except clamping and removing valve body to be measured, everything is all by the present invention Detection device be automatically performed.

2nd, working environment is effectively improved, traditional " wet survey method " is changed to " dry survey method ", thoroughly solves working environment The problem of moist.

3rd, influence of the human factor to testing result is avoided, due to test parameter input in the programmable controller, by Automatic detection judgement of the invention, avoids the possibility of artificial flase drop and missing inspection, while ensure that the consistency of product testing parameter.

4th, it improves work efficiency, since detection work is mainly automatically performed by detection device of the present invention, a worker can To look after more playscript with stage directions devices, therefore, working efficiency can be greatly improved.

Below with reference to drawings and examples, the present invention is described in detail.

Description of the drawings

Fig. 1 is the side view of the present invention.

Fig. 2 is the front view of the present invention.

Fig. 3 is the stereogram that valve body is tested in the present invention.

Fig. 4 is the schematic diagram of electric control system in the present invention.

Fig. 5 is the flow chart of valve body automatic testing method in the present invention.

In figure, 1, drain valve;2nd, water inlet pipe mouth;3rd, effluent pipe mouth;4th, fixed frame;5th, the first pneumatic corking;6th, first is O-shaped Sealing ring;7th, the first cylinder linkage board;8th, the first inflating port;9th, the first countercylinder;10th, the first master cylinder;11st, the first master cylinder Guide rail;12nd, the second pneumatic corking;13rd, the second cylinder linkage board;14th, the second countercylinder guide rail;15th, the second master cylinder guide rail; 16th, the second countercylinder;17th, the second master cylinder;18th, the second pneumatic fixed frame;19th, the first pneumatic fixed frame;20th, working plate; 21st, Switching Power Supply;22nd, programmable controller;23rd, baroceptor;24th, air pressure change comparison circuit;25th, testing result is shown Device;26th, relay group;27th, solenoid valve block.

Specific embodiment

Embodiment,

Also referring to Fig. 1 to 3, a kind of valve body automatic detection device, especially in the automatic detection dress of drain valve 1 It puts.There is water inlet pipe mouth 2 and effluent pipe mouth 3 on the drain valve 1.Above device includes being used to implement 2 He of water inlet pipe for drain valve mouth The electric-controlled that machine operating system acts during machine operating system and Control experiment that effluent pipe mouth 3 is blocked and inflated System processed.

Wherein, machine operating system includes the first pneumatic mechanism positioned at 2 top of water inlet pipe mouth of drain valve, positioned at draining Second pneumatic mechanism of 3 side of effluent pipe mouth of valve, for disposing the fixed frame 4 of drain valve 1, for installing the first pneumatic mechanism The first pneumatic fixed frame 19 and for install the second pneumatic mechanism the second pneumatic fixed frame 18.

The fixed frame 4 of first pneumatic mechanism fixed frame 19, the second pneumatic mechanism fixed frame 18 and placement drain valve 1 is respectively mounted On working plate 20.

First pneumatic mechanism includes the first master cylinder guide rail 11, the first master cylinder being arranged on the first master cylinder guide rail 11 10, the first cylinder linkage board 7 that can move up and down under the drive of the first master cylinder 10, on the first cylinder linkage board 7 and The first pneumatic corking 5 being adapted with water inlet pipe mouth 2 and the first groove pressure being connected for driving with the first pneumatic corking 5 The first countercylinder 9 that block moves up and down.First countercylinder 9 is connected by the first push rod with the first pneumatic corking 5, first The side wall of push rod is equipped with the first inflating port 8, and the bottom centre of the first pneumatic corking 5 is provided with what is communicated with the first inflating port 8 First stomata (not shown).The first groove briquetting is equipped in the lower part of the first push rod, at the outer rim of the first pneumatic corking 5 Equipped with matched first O-ring seal 6 of the first groove briquetting.First groove briquetting is under the action of the first countercylinder, axis To the first O-ring seal is squeezed, it is allowed to be radially expanded.

Second pneumatic mechanism includes the second master cylinder guide rail 15, the second master cylinder being arranged on the second master cylinder guide rail 15 17, the second master cylinder 17 drive under can side-to-side movement the second cylinder linkage board 13, on the second cylinder linkage board 13 And the second pneumatic corking 12 for being adapted with effluent pipe mouth 3 and be connected with the second pneumatic corking 12 second recessed for driving Slot briquetting makees the second countercylinder 16 of side-to-side movement.Second countercylinder 16 is mounted on the second countercylinder guide rail 14.Second pair Cylinder 16 is connected by the second push rod with the second pneumatic corking 12, and the second inflating port is equipped on the side wall of the second push rod (in figure It is not shown), the bottom of the second pneumatic corking 12 is provided with the second stomata (not shown) communicated with the second inflating port. The lower part of two push rods is equipped with the second groove briquetting, is equipped at the outer rim of the second pneumatic corking 12 and is matched with the second groove briquetting The second O-ring seal.For second groove briquetting under the action of the second countercylinder, the second O-ring seal of transverse shear stress is allowed to vertical To expansion.

Above structure is similar to the first pneumatic mechanism, for the detection to valve outlet side.

Referring to Fig. 4, electric control system includes Switching Power Supply 21, programmable controller 22, baroceptor 23, air pressure Change comparison circuit 24, testing result display 25, relay group 26 and solenoid valve block 27.

Wherein, Switching Power Supply 21, for providing the power supply needed for electric control system.

Programmable controller 22, for sending out command signal by preset program and then other components being controlled to act.

Relay group 26, on the one hand receive programmable controller 22 export instruction, on the other hand with 27 phase of solenoid valve block Even so that pneumatic device completes required act by program.

Baroceptor 23, for the atmospheric pressure value of drain valve inlet side or outlet side during detecting pressurize.

Air pressure change comparison circuit 24, for the above-mentioned atmospheric pressure value detected to be compared, evaluate the value have it is unchanged, If air pressure is constant, qualification is judged to, otherwise is unqualified.

Testing result display 25, for testing result to be showed.

Referring to Fig. 5, a kind of drain valve automatic testing method, includes the following steps:

101st, start detection button;Electric control system is powered and starts to work.

102nd, the first master cylinder works;First master cylinder drives the first cylinder linkage board and joins mounted on first cylinder The first countercylinder, the first pneumatic corking on movable plate move downwardly together, until the first pneumatic corking is stopped when entering water inlet pipe mouth Only.

103rd, the first countercylinder works;The first groove briquetting of the first O-ring seal upper end is pushed to squeeze the first O-shaped sealing Circle is allowed to diameter and becomes larger simultaneously swelling between the first pneumatic corking outer diameter and water inlet pipe mouth internal diameter.

104th, pressurize is inflated;Programmable controller instruction unpack inflates solenoid valve, and compressed air is made to pass through the first inflating port With the first stomata to drain valve influent side valve interacvity air-filling, until reaching authorized pressure, and kept for the pressure several seconds.

105th, baroceptor works;The pressure value of drain valve inlet side during pressurize is detected in real time.

106th, air pressure change comparison circuit works;For the above-mentioned atmospheric pressure value detected to be compared, evaluating the value has It is unchanged, if air pressure is constant, qualification is judged to, otherwise is unqualified.

107th, it shows testing result, test result is showed.

108th, the first pneumatic mechanism resets;Programmable controller instructs the first pneumatic mechanism to return to initial position.

109th, the second master cylinder works, and the second master cylinder drives the second cylinder linkage board and joins mounted on second cylinder The second countercylinder, the second pneumatic corking on movable plate move right together, until the second pneumatic corking enters the water outlet of drain valve Stop during nozzle.

110th, the second countercylinder works, and the second groove briquetting of the second O-ring seal upper end is pushed to squeeze the second O-shaped sealing Circle is allowed to diameter and becomes larger simultaneously swelling between the second pneumatic corking outer diameter and effluent pipe mouth internal diameter.

111st, pressurize is inflated, programmable controller instruction unpack inflation solenoid valve makes compressed air pass through the second inflating port With the second stomata to drain valve water outlet side valve interacvity air-filling, until reaching authorized pressure, and kept for the pressure several seconds.

112nd, baroceptor works, and the pressure value of drain valve outlet side during pressurize is detected in real time.

113rd, air pressure change comparison circuit works, and for the above-mentioned atmospheric pressure value detected to be compared, evaluating the value has It is unchanged, if air pressure is constant, qualification is judged to, otherwise is unqualified.

114th, it shows testing result, test result is showed.

115th, the second pneumatic mechanism resets, and programmable controller instructs the second pneumatic mechanism to return to initial position.

116th, detection terminates.

It describes in detail above to a kind of drain valve automatic detection device provided by the present invention, tool used herein Body example is expounded the principle of the present invention and embodiment, and the explanation of above example is only intended to help to understand this hair Bright method and its core concept, are not defined the scope of the present invention, while are not departing from design spirit of the present invention Under the premise of, those of ordinary skill in the art are to construction of the present invention, the equivalence changes made of feature and principle or decoration, such as Foregoing invention is applied on the valve body of other similar structures, should all be fallen within the scope of protection of the present invention.

Claims (2)

1. a kind of valve body automatic detection device, for being detected to drain valve, it is characterised in that:Including be used to implement valve body into Machine operating system acts during machine operating system and Control experiment that hose nozzle and effluent pipe mouth are blocked and inflated Electric control system;
Wherein, the machine operating system includes:For disposing the fixed frame of valve body, above the water inlet pipe mouth of valve body One pneumatic mechanism and the second pneumatic mechanism positioned at the effluent pipe mouth side of valve body;
First pneumatic mechanism includes:First master cylinder, the first cylinder connection that can be moved up and down under the drive of the first master cylinder Movable plate, the first pneumatic corking being adapted on the first cylinder linkage board and with water inlet pipe mouth and the first countercylinder;It should First countercylinder is connected by the first push rod with the first pneumatic corking, and the first inflating port is equipped on the side wall of the first push rod, the The bottom of one pneumatic corking is provided with the first stomata communicated with the first inflating port;It is recessed that the lower part of first push rod is equipped with first Slot briquetting is equipped with and matched first O-ring seal of the first groove briquetting at the outer rim of the first pneumatic corking;Described first Countercylinder axially moves for the first groove briquetting of driving;
Second pneumatic mechanism includes:Second master cylinder, the second master cylinder drive under can side-to-side movement the second cylinder connection Movable plate, the second pneumatic corking being adapted on the second cylinder linkage board and with effluent pipe mouth and the second countercylinder;It should Second countercylinder is connected by the second push rod with the second pneumatic corking, and the second inflating port is equipped on the side wall of the second push rod, the The bottom of two pneumatic corkings is provided with the second stomata communicated with the second inflating port;It is recessed that the lower part of second push rod is equipped with second Slot briquetting, at the outer rim of the second pneumatic corking be equipped with matched second O-ring seal of the second groove briquetting, above-mentioned second Countercylinder makees side-to-side movement for the second groove briquetting of driving,
The electric control system includes:Switching Power Supply, programmable controller, baroceptor, air pressure change comparison circuit, inspection Survey result display, relay group and solenoid valve block;Wherein,
Switching Power Supply, for providing the power supply in test process needed for electric control system;
Programmable controller, for sending out signal in pre-set programs and then other components being controlled to act;
On the one hand relay group receives the instruction of programmable controller output, is on the other hand connected with solenoid valve block so that pneumatic Device completes required act by program;
Baroceptor, for the atmospheric pressure value of valve body import side or outlet side during detecting pressurize;
Air pressure change comparison circuit, for the above-mentioned atmospheric pressure value detected to be compared, evaluate the value have it is unchanged, if air pressure It is constant, then qualification is judged to, otherwise is unqualified;
Testing result display, for testing result to be showed;
During work, the first master cylinder drives the first cylinder linkage board and the first secondary gas on the first cylinder linkage board Cylinder, the first pneumatic corking move downwardly together, and then complete the action that the first pneumatic corking enters water inlet pipe mouth;Then, first Countercylinder is started to work, and the first groove briquetting is pushed to move downward so that diameter becomes larger after the first O-ring seal is squeezed, swollen Expire between the first pneumatic corking outer diameter and water inlet pipe mouth internal diameter, reached sealing function;Then, from the first inflating port into valve body Chamber is inflated to authorized pressure, and is kept for the pressure several seconds, during pressurize, by baroceptor detect its air pressure have it is unchanged, If air pressure is constant, qualification is judged to, otherwise is unqualified;Above-mentioned a series of action is all the finger sent out by programmable controller It enables controlling, after influent side detection is completed, programmable controller can send out instruction, and second is pneumatic at startup effluent pipe mouth Corking starts to act, and finally after the detection of influent side and water outlet side has been respectively completed, completes the detection of valve body.
2. a kind of drain valve automatic testing method, for being detected to drain valve, includes the following steps:
101st, start detection button;Electric control system is powered and starts to work;
102nd, the first master cylinder works;First master cylinder drives the first cylinder linkage board and mounted on the first cylinder linkage board On the first countercylinder, the first pneumatic corking move downwardly together, until the first pneumatic corking stops when entering water inlet pipe mouth;
103rd, the first countercylinder works;The first groove briquetting of the first O-ring seal upper end is pushed to squeeze the first O-ring seal, It is allowed to diameter and becomes larger simultaneously swelling between the first pneumatic corking outer diameter and water inlet pipe mouth internal diameter;
104th, pressurize is inflated;Programmable controller instruction unpack inflates solenoid valve, and compressed air is made to pass through the first inflating port and the One stomata is to drain valve influent side valve interacvity air-filling, until reaching authorized pressure, and kept for the pressure several seconds;
105th, baroceptor works;The pressure value of drain valve inlet side during pressurize is detected in real time;
106th, air pressure change comparison circuit works;For the above-mentioned atmospheric pressure value detected to be compared, evaluate the value whether there is change Change, if air pressure is constant, be judged to qualification, otherwise be unqualified;
107th, it shows testing result, test result is showed;
108th, the first pneumatic mechanism resets;Programmable controller instructs the first pneumatic mechanism to return to initial position;
109th, the second master cylinder works, and the second master cylinder drives the second cylinder linkage board and mounted on the second cylinder linkage board On the second countercylinder, the second pneumatic corking move right together, until the second pneumatic corking enters the effluent pipe mouth of drain valve When stop;
110th, the second countercylinder works, and the second groove briquetting of the second O-ring seal upper end is pushed to squeeze the second O-ring seal, It is allowed to diameter and becomes larger simultaneously swelling between the second pneumatic corking outer diameter and effluent pipe mouth internal diameter;
111st, pressurize is inflated, programmable controller instruction unpack inflation solenoid valve makes compressed air pass through the second inflating port and the Two stomatas are to drain valve water outlet side valve interacvity air-filling, until reaching authorized pressure, and kept for the pressure several seconds;
112nd, baroceptor works, and the pressure value of drain valve outlet side during pressurize is detected in real time;
113rd, air pressure change comparison circuit works, and for the above-mentioned atmospheric pressure value detected to be compared, evaluates the value whether there is change Change, if air pressure is constant, be judged to qualification, otherwise be unqualified;
114th, it shows testing result, test result is showed;
115th, the second pneumatic mechanism resets, and programmable controller instructs the second pneumatic mechanism to return to initial position;
116th, detection terminates.
CN201510472760.7A 2015-08-05 2015-08-05 A kind of valve body automatic detection device and its method CN105067203B (en)

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CN105445020A (en) * 2016-01-07 2016-03-30 贵州华烽电器有限公司 Overflow tank assembly pressure testing tool
CN106092549B (en) * 2016-08-03 2018-07-10 华北电力大学苏州研究院 The detection device of automatic drain valve detection device
CN106053049A (en) * 2016-08-03 2016-10-26 苏州市吴中区胥口广博模具加工厂 Water detection component of automatic water drain valve detecting device
CN106054003B (en) * 2016-08-03 2018-10-26 王月娟 The energization detection components of automatic drain valve detection device
CN106051293B (en) * 2016-08-03 2018-08-24 江苏恒达机械制造有限公司 Automatic drain valve detection device

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