CN101824733A - Washer pressure pipe guiding device for preventing foam and accumulated water - Google Patents
Washer pressure pipe guiding device for preventing foam and accumulated water Download PDFInfo
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- CN101824733A CN101824733A CN200910118376A CN200910118376A CN101824733A CN 101824733 A CN101824733 A CN 101824733A CN 200910118376 A CN200910118376 A CN 200910118376A CN 200910118376 A CN200910118376 A CN 200910118376A CN 101824733 A CN101824733 A CN 101824733A
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Abstract
The invention discloses a washer pressure pipe guiding device for preventing foam and accumulated water, which is arranged on a washer provided with a pressure type water level detector. The guiding device is arranged in a pressure pipe; one end of the pressure pipe is communicated with an air chamber nozzle of an outer drum and is sealed, while the other end is communicated with the pressure type water level detector and is sealed; the guiding device comprises a foam preventing component capable of preventing large-volume foam from carrying air to enter the pressure pipe, and also comprises an accumulated water guiding component capable of guiding waterdrops to slip along the inner wall of the pressure pipe under the action of gravity and enter an air chamber; the foam preventing component and the accumulated water guiding component are respectively a pressure pipe lead and a pressure pipe connector connected with one end of the pressure pipe lead; the pressure pipe lead is arranged in the pressure pipe; the pressure pipe connector is arranged in the air chamber nozzle communicated with one end of the pressure pipe; and the guiding device damages the foam entering the pressure pipe and guides the accumulated water remaining in the pressure pipe so as to realize accurate water level detection. The guiding device has the advantages of simple structure and low cost.
Description
Technical field
The present invention relates to the accurate checkout gear of a kind of washing machine water level, especially a kind of connecting pipe guiding device that is used for preventing in the pressure type level sensor connecting pipe foam and ponding.
Background technology
Existing washing machine comprises rotary drum washing machine, roller washing machine and stirs many working pressures of washing machine formula level sensor and judge or definite water level, the accuracy of pressure type level sensor and reliability directly have influence on the water consumption and the security of washing machine in user's use, and the connecting pipe of pressure type level sensor is particularly important as the intermediate link that pressure transmits.
As shown in Figure 1, pressure type level sensor 1 ' on washing machine mainly uses according to the connected mode shown in the figure: connecting pipe 2 ' one end with outside the air chamber mouth 4 ' of bucket on 3 ' be connected and seal, the other end is connected with pressure type level sensor 1 ' and seals, when water level rises, gas pressure in the enclosure space raises, and connecting pipe 2 ' is delivered to sensor internal with this pressure distortion and causes the relevant contacts action.
Though the pressure type level sensor of above-mentioned use and connecting pipe connected mode can indicated water levels, reach the basic function requirement, but on reliability, there are some hidden danger, the prerequisite that connecting pipe can accurately transmit pressure is that inner air tube must be sealing, continuous, if have bubble or remaining ponding in the connecting pipe, then can make the distorted signals that sensor receives even cause faulty sensor, and then have influence on judgement and the control of complete machine, produce safety problem easily thus water level.
Such as, pressure type level sensor 1 ' as shown in Figure 1 is when washing machine washs, the foam that is produced by cleaning solution can enter in the air chamber 5 ' by the connected component of air chamber 5 ' with outer bucket 3 ' bottom, the mixing power that gathers with washing machine of foam can cause foam to be entered in the connecting pipe 2 ' by air chamber mouth 4 ', make that air is discontinuous in the connecting pipe 2 ', cause the distorted signals that sensor 1 ' receives even cause faulty sensor; In addition, because when machine installation injustice and connecting pipe 2 ' one side just are in position on the low side, just having partial product water remains in the connecting pipe 2 ', as shown in Figure 2, to common connecting pipe 2 ', ponding 6 ' remaining in the connecting pipe 2 ' is suspension in pipe, since ponding 6 ' be air up and down, the pressure effect is suitable, and ponding 6 ' is difficult to slide by the gravity effect, therefore is suspended in the connecting pipe 2 '.Just have partial product water and remain in the connecting pipe, if ponding is not discharged, ponding can cause the pressure in the connecting pipe not conform to actual water level, thereby can cause level sensor misjudgment or malfunctioning.
Application number is the one-piece type air chamber structure of corrugated flexible hose that 02156570.8 Chinese patent discloses a kind of roller washing machine, comprises body, washing agent, cylinder, drive division, corrugated flexible hose, draining pump, air chamber, pressure transfer tube and level sensor; Corrugated hose linked is in the lower side of sink; Draining pump is attached on the corrugated flexible hose; Air chamber is attached on the branched pipe of corrugated flexible hose one side; The pressure transfer tube is attached on the air chamber; Level sensor is attached on the pressure transfer tube; Corrugated flexible hose and air chamber moulding one.This structure forms one by air chamber and corrugated flexible hose, is merely able to solve owing to leak cause the inaccurate problem of water level detecting, can not solve the above-mentioned accurate problem of water level detecting about foam in the pressure transfer tube and ponding influence.
Application number is that 200410059262.1 Chinese patent discloses a kind of tumbling-box washing machine with level sensing unit, and described tumbling-box washing machine comprises: water drum is used for holding therein water; Level sensing unit is used for detecting the water level of the water that is contained in water drum.Described level sensing unit comprises: the level sensor flexible pipe is used for being communicated with water drum; And level switch, be used for the pressure of sensed water level sensing flexible pipe and the water level that is contained in the water in the water drum.The described level sensor flexible pipe of this structure is mounted for water drum and separates, and only can prevent that it from being stopped up by foreign material, can not solve the above-mentioned accurate problem of water level detecting about foam in the pressure transfer tube and ponding influence equally.
In view of this spy provides the present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of and can prevent that foam from entering into and produce bubble in the connecting pipe, and can water conservancy diversion go out ponding in connecting pipe, makes the pressure type level sensor indicate connecting pipe guiding device accurately.
For solving the problems of the technologies described above, the present invention adopts the basic design of technical scheme to be: a kind of washing machine connecting pipe guiding device that prevents foam and ponding, be installed on the washing machine that is provided with the pressure type level sensor, it is characterized in that: this guiding device is located in the connecting pipe, this connecting pipe one end is connected with the air chamber of outer barrel bottom and seals, the other end is connected with the pressure type level sensor and seals, this guiding device is located in the connecting pipe, this connecting pipe one end is connected with the air chamber of outer barrel bottom and seals, the other end is connected with the pressure type level sensor and seals, described guiding device comprises that one can prevent that large volume foamover air from entering the foam barrier structure in the connecting pipe, comprise that also one can guide water droplet to slide the guiding ponding member of the air inlet chamber of going forward side by side along the connecting pipe inwall under the effect of gravity, this guiding device destroys the foam and the water conservancy diversion that enter in the connecting pipe and goes out to remain in the interior ponding of connecting pipe to realize the judgement of pressure type level sensor accurately.
Described guiding ponding member and foam barrier structure be respectively connecting pipe lead-in wire with this connecting pipe connecting pipe joint that an end is connected that goes between, connecting pipe goes between and is arranged in the connecting pipe, the connecting pipe joint is installed in the air chamber mouth that is communicated with connecting pipe one end.
Described connecting pipe joint comprises that one is convenient to insert the cone termination in the connecting pipe and is located at the interior body of air chamber mouth, cone termination and body are structure as a whole, the direction of connecting pipe joint upper edge end to end is that axis direction is provided with water-flowing trough, the water-flowing trough cross section is " U " shape, and the connecting pipe lead-in wire freely is suspended in the connecting pipe.
Described connecting pipe lead-in wire is a smooth rigid lead-in wire of plastic wire-drawing, the vibration drive connecting pipe lead-in wire that produces by the washing machine running stirs in connecting pipe, destroy the stability of water droplet in connecting pipe, make water droplet under the effect of gravity, slide the air inlet chamber of going forward side by side, so that air conducting up and down in the connecting pipe along connecting pipe inwall and lead-in wire.
During the washing machine washing, have foam in the air chamber, and the foam that enters in the air chamber mouth is relatively large, through the connecting pipe joint time, because " U " shape opening diameter of connecting pipe water-flowing trough is less than air chamber mouth internal diameter, the foam that enters in the water-flowing trough diminishes relatively, foam continues through becoming littler foam relatively behind the connecting pipe joint, when this relative littler foam moves on again, because the existence of connecting pipe lead-in wire, foam is decomposed and is destroyed, the water meeting following current return-air chamber that foam is entrained, and the air of release is stayed in the connecting pipe.
This device is applicable to the connecting pipe on any washing machine, comprises rotary drum washing machine, roller washing machine and stirs washing machine, and the place of every working pressure formula level sensor, apparatus of the present invention all can be used, and belong within the protection domain of the present invention.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
The present invention goes out to remain in the interior ponding of connecting pipe by increasing a connecting pipe joint and a connecting pipe lead-in wire on the basis of existing structure, can destroy the foam and the water conservancy diversion that enter.This device employing directly destroys the mode of foam and derivation ponding and eliminates the interior air block of connecting pipe, and is with strong points, the reliability height; Use the connecting pipe of this scheme can improve the accuracy and the sensitivity of the indication of pressure type level sensor, reduce malfunctioning or indication and forbidden the potential safety hazard that causes because of level sensor; This device need not complicated structural design, can carry out on original washing machine connecting pipe, realizes that cost is lower.The present invention effectively improves the reliability of pressure type level sensor, reduces the potential safety hazard that lost efficacy and cause because of water level control.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Description of drawings
Fig. 1 is a prior art washing machine pressure type level sensor structural representation;
Fig. 2 is the connecting pipe ponding view of prior art washing machine pressure type level sensor;
Fig. 3 is the washing machine connecting pipe guiding device structural representation that the present invention prevents foam and ponding;
Fig. 4 is the A-A section enlarged diagram of Fig. 3;
Fig. 5 is the B-B section enlarged diagram of Fig. 3;
Fig. 6 is that guiding device of the present invention prevents the foam state schematic diagram;
Fig. 7 is a C portion enlarged diagram among Fig. 6;
Fig. 8 is that guiding device of the present invention prevents the ponding view.
The specific embodiment
Extremely shown in Figure 8 as Fig. 3, for the present invention is used to be provided with connecting pipe guiding device on the pressure type level sensor washing machine, in original connecting pipe, increase this guiding device, can improve the accuracy and the sensitivity of pressure type level sensor indication, reduce malfunctioning or indication and forbidden the potential safety hazard that causes because of level sensor.
Be installed in the pressure type level sensor 1 on the washing machine at present, be connected by the air chamber 6 of a connecting pipe 2 with outer bucket 3 bottoms, these connecting pipe 2 two ends are tightly connected with pressure type level sensor 1 and air chamber mouth 7 respectively, guiding device of the present invention comprises a foam barrier structure, this foam barrier structure is inserted in the air chamber mouth 7, can prevent that large volume foamover air from entering in the connecting pipe 2, also comprise a guiding ponding member, this guiding ponding member is installed in the connecting pipe 2, can guide water droplet 4 to slide the air inlet chamber 6 of going forward side by side along connecting pipe 2 inwalls and lead-in wire under the effect of gravity, this guiding device destroys the ponding that the foam that enters in the connecting pipe and water conservancy diversion go out to remain in the connecting pipe and judges accurately to realize the pressure type level sensor.
Concrete as Fig. 3 and shown in Figure 7, described guiding ponding member and foam barrier structure be respectively connecting pipe lead-in wire 4 with this connecting pipe connecting pipe joint 5 that 4 one ends are connected that goes between, connecting pipe lead-in wire 4 is arranged in the connecting pipe 2, and connecting pipe joint 5 is installed in the air chamber mouth 7 that is communicated with connecting pipe one end.
Above-mentioned connecting pipe joint 5 comprises that one is convenient to insert the cone termination 51 and the body of being located in the air chamber mouth 7 52 in the connecting pipe 2, cone termination 51 and body 52 are structure as a whole, the direction of connecting pipe joint 5 upper edge end to end, be that axis direction is provided with water-flowing trough 53, water-flowing trough 53 cross sections are " U " shape, and the connecting pipe lead-in wire freely is suspended in the connecting pipe 2.
Above-mentioned connecting pipe lead-in wire 4 is a smooth rigid lead-in wire of plastic wire-drawing, be installed in the connecting pipe 2, the vibration drive connecting pipe lead-in wire that produces by the washing machine running stirs in connecting pipe, destroy the stability of water droplet in connecting pipe, make water droplet under the effect of gravity, slide the air inlet chamber of going forward side by side, so that air conducting up and down in the connecting pipe along connecting pipe inwall and lead-in wire.When guiding device is installed, earlier connecting pipe lead-in wire 4 is put into connecting pipe 2, the end with connecting pipe joint 5 bodies 52 inserts in the air chamber mouth 7 again, and cone termination 51 is exposed on the external, and at last connecting pipe 2 is enclosed within on the air chamber mouth 7 along cone termination 51, and installation is finished in sealing.
As shown in Figure 6 and Figure 7, during the washing machine washing, have foam in the air chamber 6, and the foam 8 that enters in the air chamber mouth 7 is relatively large, through connecting pipe joint 5 time, because the diameter of " U " shape opening of connecting pipe water-flowing trough 53 is less than air chamber mouth 7 internal diameters, the foam 9 that enters in the water-flowing trough 53 can diminish relatively, foam 9 continues through becoming littler foam 10 relatively behind the connecting pipe joint 5, when this relative littler foam 10 moved on again, because the existence of connecting pipe lead-in wire 4, foam 10 was decomposed and is destroyed, the water meeting following current return-air chamber that foam is entrained, the air of release is stayed in the connecting pipe 2.
Because when washing machine installation injustice and connecting pipe one side just are in position on the low side, just having partial product water remains in the connecting pipe, if ponding is not discharged, ponding can cause the pressure in the connecting pipe not conform to actual water level, thereby can cause level sensor misjudgment or malfunctioning, because the connecting pipe that is provided with in the connecting pipe 2 of the present invention lead-in wire 4 (consulting Fig. 8), connecting pipe lead-in wire 4 passes the ponding water droplet 11 that is suspended in the connecting pipe 2, when laundry machine dehydration, the vibration that machine run produces can drive connecting pipe lead-in wire 4 and stir in connecting pipe 2, the stirring of connecting pipe lead-in wire 4 has destroyed the stability of water droplet 11 in connecting pipe 2, make water droplet under the effect of gravity, can slide the air inlet chamber 6 of going forward side by side along connecting pipe 2 inwalls and lead-in wire 4, the generation of connecting pipe inner suspension ponding can be effectively avoided in the use of connecting pipe lead-in wire, and making the air in the connecting pipe is continuous all the time.
Guiding device of the present invention is applicable to the connecting pipe on any washing machine; comprise rotary drum washing machine, roller washing machine and stir washing machine; the place of every working pressure formula level sensor, apparatus of the present invention all can be used, and belong within the protection domain of the present invention.
The present invention increases a connecting pipe joint and connecting pipe lead-in wire on the basis of existing structure, foam that enters with destruction and water conservancy diversion go out to remain in the ponding in the connecting pipe.This device adopts the mode of directly destroying foam and water conservancy diversion ponding to eliminate the interior air block of connecting pipe, and is with strong points, the reliability height; Use the connecting pipe of this scheme can improve the accuracy and the sensitivity of the indication of pressure type level sensor, reduce malfunctioning or indication and forbidden the potential safety hazard that causes because of level sensor; This device need not complicated structural design, can carry out on original washing machine connecting pipe, realizes that cost is lower.The present invention effectively improves the reliability of pressure type level sensor, reduces the potential safety hazard that lost efficacy and cause because of water level control.
Claims (5)
1. washing machine connecting pipe guiding device that prevents foam and ponding, be installed on the washing machine that is provided with the pressure type level sensor, it is characterized in that: this guiding device is located in the connecting pipe, this connecting pipe one end is connected with the air chamber of outer barrel bottom and seals, the other end is connected with the pressure type level sensor and seals, described guiding device comprises that one can prevent that large volume foamover air from entering the foam barrier structure in the connecting pipe, comprise that also one can guide water droplet to slide the guiding ponding member of the air inlet chamber of going forward side by side along the connecting pipe inwall under the effect of gravity, this guiding device destroys the foam and the water conservancy diversion that enter in the connecting pipe and goes out to remain in the interior ponding of connecting pipe to realize the judgement of pressure type level sensor accurately.
2. the washing machine connecting pipe guiding device that prevents foam and ponding according to claim 1, it is characterized in that: described guiding device by connecting pipe lead-in wire with constitute with this connecting pipe connecting pipe joint that an end is connected that goes between, the connecting pipe lead-in wire is arranged in the connecting pipe, and the connecting pipe joint is installed in the air chamber mouth that is communicated with connecting pipe one end.
3. the washing machine connecting pipe guiding device that prevents foam and ponding according to claim 2, it is characterized in that: described connecting pipe joint comprises that one is convenient to insert the cone termination in the connecting pipe and is located at the interior body of air chamber mouth, cone termination and body are structure as a whole, the direction of connecting pipe joint upper edge end to end is that axis direction is provided with water-flowing trough, the water-flowing trough cross section is " U " shape, and the connecting pipe lead-in wire freely is suspended in the connecting pipe.
4. the washing machine connecting pipe guiding device that prevents foam and ponding according to claim 2, it is characterized in that: described connecting pipe lead-in wire is a smooth rigid lead-in wire of plastic wire-drawing, the vibration drive connecting pipe lead-in wire that produces by the washing machine running stirs in connecting pipe, destroy the stability of water droplet in connecting pipe, make water droplet under the effect of gravity, slide the air inlet chamber of going forward side by side, so that air conducting up and down in the connecting pipe along the connecting pipe inwall.
5. the washing machine connecting pipe guiding device that prevents foam and ponding according to claim 3, it is characterized in that: during the washing machine washing, have foam in the air chamber, and the foam that enters in the air chamber mouth is relatively large, through the connecting pipe joint time, because " U " shape opening diameter of connecting pipe water-flowing trough is less than air chamber mouth internal diameter, the foam that enters in the water-flowing trough diminishes relatively, foam continues through becoming littler foam relatively behind the connecting pipe joint, when this relative littler foam moved on again, because the existence of connecting pipe lead-in wire, foam was decomposed and is destroyed, the water meeting following current return-air chamber that foam is entrained, the air of release is stayed in the connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910118376 CN101824733B (en) | 2009-03-02 | 2009-03-02 | Washer pressure pipe guiding device for preventing foam and accumulated water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910118376 CN101824733B (en) | 2009-03-02 | 2009-03-02 | Washer pressure pipe guiding device for preventing foam and accumulated water |
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| Publication Number | Publication Date |
|---|---|
| CN101824733A true CN101824733A (en) | 2010-09-08 |
| CN101824733B CN101824733B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910118376 Active CN101824733B (en) | 2009-03-02 | 2009-03-02 | Washer pressure pipe guiding device for preventing foam and accumulated water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442272A (en) * | 2015-11-09 | 2016-03-30 | 海信（山东）冰箱有限公司 | Water level sensor, assembling method and washing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62207498A (en) * | 1986-03-07 | 1987-09-11 | 松下電器産業株式会社 | Water level detector of washing machine |
| CN1508345A (en) * | 2002-12-17 | 2004-06-30 | 乐金电子(天津)电器有限公司 | Corrugated hose integrated air chamber structure for drum washing machine |
| CN1616746A (en) * | 2003-11-10 | 2005-05-18 | 三星电子株式会社 | Drum-type washing machine with water level sensing unit |
| EP2025793A1 (en) * | 2006-05-18 | 2009-02-18 | Sanyo Electric Co., Ltd. | Washing machine |
-
2009
- 2009-03-02 CN CN 200910118376 patent/CN101824733B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62207498A (en) * | 1986-03-07 | 1987-09-11 | 松下電器産業株式会社 | Water level detector of washing machine |
| CN1508345A (en) * | 2002-12-17 | 2004-06-30 | 乐金电子(天津)电器有限公司 | Corrugated hose integrated air chamber structure for drum washing machine |
| CN1616746A (en) * | 2003-11-10 | 2005-05-18 | 三星电子株式会社 | Drum-type washing machine with water level sensing unit |
| EP2025793A1 (en) * | 2006-05-18 | 2009-02-18 | Sanyo Electric Co., Ltd. | Washing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442272A (en) * | 2015-11-09 | 2016-03-30 | 海信（山东）冰箱有限公司 | Water level sensor, assembling method and washing machine |
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| CN101824733B (en) | 2013-06-05 |
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Effective date of registration: 20160831 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Patentee before: haier group corporation Patentee before: Qingdao Haier Washing Machine Co., Ltd. |