CN105157925A - Airtightness detection apparatus and detection method of water level sensor of washing machine - Google Patents
Airtightness detection apparatus and detection method of water level sensor of washing machine Download PDFInfo
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- CN105157925A CN105157925A CN201510547994.3A CN201510547994A CN105157925A CN 105157925 A CN105157925 A CN 105157925A CN 201510547994 A CN201510547994 A CN 201510547994A CN 105157925 A CN105157925 A CN 105157925A
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- level sensor
- water level
- supporting traverse
- washing machine
- level sensors
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Abstract
The invention relates to an airtightness detection method of a water level sensor of a washing machine. The detection method comprises: (1), water level sensors are respectively installed in positioning dies, an end portion of a mandril moves to a first support cross beam by fastening an adjusting nut and the first support cross beam is abutted and is pushed to move backwardly, so that suction nozzles of the water level sensors are connected to connecting heads of the water level sensors; and (2), the suction nozzles of the water level sensors are connected to the connecting heads of the water level sensors fully and an air source is started and air is provided for the water level sensors, so that airtightness detection of the water level sensors is realized.
Description
Technical field
The present invention relates to level sensor technical field of processing equipment, be specifically related to a kind of water level sensor of washing machine air-tightness detection device and detection method.
Background technology
Water level sensor of washing machine is used for the change of sensed water level, and the air pressure produced when its principle is and utilizes water level to rise is delivered on sensor by pipeline, and magnetic core movement change in coil magnetic flux is realized.As the standard universal part of on washing machine, the principle of existing level sensor is all substantially identical, and its theory structure is as follows: divide inner/outer tube by washing machine tub, urceolus has an independent air chamber, aqueous phase in this air chamber and urceolus connects, and keeps water level at grade; The top of air chamber is received on the valve of level sensor by seal tube.When the height of water level in washing machine drum changes, water level in independent air chamber on urceolus also changes thereupon, be sealed in the air pressure to one section of sealing air of sensor diaphragm bottom in urceolus independent air chamber water surface top, O-ring seal flexible pipe, change along with the SEA LEVEL VARIATION in laundry machine barrel.At sensor internal, the diaphragm in sensor is raised by the air pressure that sealing air section provides.Diaphragm in sensor there is a magnetic core support, magnetic core support has a magnetic core, outside magnetic core, be with a coil, magnetic core has one be installed in spring that set screw on housing compresses; When diaphragm is raised, so spring is under pressure and is compressed; When the pressure that diaphragm is lifted to sealing air section and provides equals the elastic force of spring, reach a balance, now magnetic core has a position relative to coil, and coil then can export a frequency values to computer board of washing machine; By above conversion, computer board of washing machine just can judge the water level height of washing machine.
Along with improving constantly of washing machine automaticity, the requirement for all parts of washing machine is also more and more higher.Need constantly to improve, to adapt to the requirement of this change to the equipment of each parts of processing.During as detected level sensor inside impermeability, traditional method employing is manually held level sensor and is then detected, and workload is large, and efficiency is low.
Summary of the invention
It is simple that technical matters to be solved by this invention is to provide a kind of structure, easy to operate water level sensor of washing machine air-tightness detection device.
Technical matters to be solved by this invention realizes by the following technical solutions:
A kind of water level sensor of washing machine air-tightness detection device, comprise a detection table top, in face of described monitor station, end is connected with angle steel, described angle steel is connected with the first supporting traverse, described first supporting traverse front portion is provided with the second supporting traverse, described first supporting traverse is arranged at intervals with gas-tpe fitting, described gas-tpe fitting one end connects source of the gas by pipeline, the gas-tpe fitting other end is connected with level sensor connector, described second supporting traverse is provided with jig, for positioning level sensor; Described first supporting traverse be positioned at both sides between the second supporting traverse and be connected by support spring, register pin is provided with inside described support spring, described register pin one end is fixed on the second supporting traverse, the other end is through the first supporting traverse, push rod is provided with in described second supporting traverse middle part, described push rod nose threads is connected on the second supporting traverse, and is connected with setting nut in push rod end, and the push rod other end is near the first supporting traverse side; By carrying out fastening to setting nut, push rod end can be made to move to the first supporting traverse, and be connected to the first supporting traverse, continue rotating adjusting nut and promote the displacement backward of the first supporting traverse, thus the spacing reached between adjustment second supporting traverse and the first supporting traverse, the distance between jig and level sensor connector is made to increase or reduce, the needs detected with the level sensor adapting to different size.
Described push rod outer cover is provided with spring, and object increases resistance, improves stability when detecting.
Described jig is provided with a circular locating slot, for placing level sensor, described locating slot edge is along the circumferential direction provided with rib, is provided with screw at described circular locating slot center, for stationary positioned mould, described jig side has admission piece standing groove; Be placed in jig when detecting by level sensor, admission piece is placed in admission piece standing groove, then connects source of the gas and realizes carrying out sealing detection to level sensor.
A kind of water level sensor of washing machine air-tightness detection method, step is as follows:
1) level sensor is arranged in jig respectively, by carrying out fastening to setting nut, push rod end being moved to the first supporting traverse, and abuts the first supporting traverse, promote the first supporting traverse to move backward, make the admission piece access level sensor connector of level sensor;
2) be fully connected with level sensor connector by the admission piece of level sensor, start source of the gas, air feed in level sensor, realizes the air-leakage test of level sensor.
The invention has the beneficial effects as follows: structure of the present invention is simple, and reasonable in design, well can locate level sensor, adapt to the detection needs of multiple level sensor, facilitate the carrying out of testing, practicality is good, applied widely, and work efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figure 1, a kind of water level sensor of washing machine air-tightness detection device, comprise a detection table top 1, detect table top 1 front end and be connected with angle steel 2, angle steel 2 is connected with the first supporting traverse 3, first supporting traverse 3 front portion is provided with the second supporting traverse 4, first supporting traverse 3 is arranged at intervals with gas-tpe fitting 5, gas-tpe fitting 5 one end connects source of the gas by pipeline, gas-tpe fitting 5 other end is connected with level sensor connector 6, second supporting traverse 4 is provided with jig 7, for positioning level sensor 8; Be positioned at both sides between first supporting traverse 3 with the second supporting traverse 4 to be connected by support spring 12, register pin 10 is provided with inside support spring 12, register pin 10 one end is fixed on the second supporting traverse 4, the other end is through the first supporting traverse 3, push rod 9 is provided with in the second supporting traverse 4 middle part, push rod 9 nose threads is connected on the second supporting traverse 4, and is connected with setting nut 13 in push rod 9 end, and push rod 9 other end is near the first supporting traverse 3; Push rod 9 outer cover is provided with spring 11, and object increases resistance, improves stability when detecting.By carrying out fastening to setting nut 13, push rod 9 end can be made to move to the first supporting traverse 3, and be connected on the first supporting traverse 3, continue rotating adjusting nut 13 and promote the first supporting traverse 3 displacement backward, thus the spacing reached between adjustment second supporting traverse 4 and the first supporting traverse 3, the distance between jig 7 and level sensor connector 6 is made to increase or reduce, the needs detected with the level sensor 8 adapting to different size.
During detection, be arranged on respectively by level sensor 8 in jig 7, by the admission piece of level sensor 8 access level sensor connector 6, start source of the gas, air feed in level sensor 8, realizes the air-leakage test of level sensor 8.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (1)
1. a water level sensor of washing machine air-tightness detection method, is characterized in that, step is as follows:
1) level sensor is arranged in jig respectively, by carrying out fastening to setting nut, push rod end being moved to the first supporting traverse, and abuts the first supporting traverse, promote the first supporting traverse to move backward, make the admission piece access level sensor connector of level sensor;
2) be fully connected with level sensor connector by the admission piece of level sensor, start source of the gas, air feed in level sensor, realizes the air-leakage test of level sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547994.3A CN105157925A (en) | 2015-08-31 | 2015-08-31 | Airtightness detection apparatus and detection method of water level sensor of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547994.3A CN105157925A (en) | 2015-08-31 | 2015-08-31 | Airtightness detection apparatus and detection method of water level sensor of washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105157925A true CN105157925A (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510547994.3A Pending CN105157925A (en) | 2015-08-31 | 2015-08-31 | Airtightness detection apparatus and detection method of water level sensor of washing machine |
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| CN (1) | CN105157925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060082A (en) * | 2018-09-06 | 2018-12-21 | 南通市华冠电器有限公司 | Water level sensor air-tightness detection device and its detection method |
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| US20050028844A1 (en) * | 2003-07-04 | 2005-02-10 | Lg Electronics Inc. | Water leakage detecting device in dishwasher |
| CN201083591Y (en) * | 2007-07-20 | 2008-07-09 | 比亚迪股份有限公司 | Silencer air tightness detection device |
| CN201561841U (en) * | 2009-11-30 | 2010-08-25 | 瑞安市博美电子科技发展有限公司 | Pressure sensor air tightness tester |
| CN102706524A (en) * | 2012-05-15 | 2012-10-03 | 苏州凯尔博精密机械有限公司 | Air tightness detecting device for medical needle head |
| CN102706522A (en) * | 2012-06-27 | 2012-10-03 | 无锡隆盛科技股份有限公司 | Detection device for detecting gas tightness of oxygen sensor |
| CN103084340A (en) * | 2013-01-14 | 2013-05-08 | 湖州剑力金属制品有限公司 | Automatic air-tightness testing and sorting device |
-
2015
- 2015-08-31 CN CN201510547994.3A patent/CN105157925A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050028844A1 (en) * | 2003-07-04 | 2005-02-10 | Lg Electronics Inc. | Water leakage detecting device in dishwasher |
| CN201083591Y (en) * | 2007-07-20 | 2008-07-09 | 比亚迪股份有限公司 | Silencer air tightness detection device |
| CN201561841U (en) * | 2009-11-30 | 2010-08-25 | 瑞安市博美电子科技发展有限公司 | Pressure sensor air tightness tester |
| CN102706524A (en) * | 2012-05-15 | 2012-10-03 | 苏州凯尔博精密机械有限公司 | Air tightness detecting device for medical needle head |
| CN102706522A (en) * | 2012-06-27 | 2012-10-03 | 无锡隆盛科技股份有限公司 | Detection device for detecting gas tightness of oxygen sensor |
| CN103084340A (en) * | 2013-01-14 | 2013-05-08 | 湖州剑力金属制品有限公司 | Automatic air-tightness testing and sorting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060082A (en) * | 2018-09-06 | 2018-12-21 | 南通市华冠电器有限公司 | Water level sensor air-tightness detection device and its detection method |
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Application publication date: 20151216 |