CN101824733B - 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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- CN101824733B CN101824733B CN 200910118376 CN200910118376A CN101824733B CN 101824733 B CN101824733 B CN 101824733B CN 200910118376 CN200910118376 CN 200910118376 CN 200910118376 A CN200910118376 A CN 200910118376A CN 101824733 B CN101824733 B CN 101824733B
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- connecting pipe
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- pressure pipe
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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 a kind of water level of washing machine accurate detection device, especially a kind of for preventing the connecting pipe guiding device of foam and ponding in pressure type level sensor connecting pipe.
Background technology
Existing washing machine comprises that rotary drum washing machine, roller washing machine and many working pressures of stirring washing machine formula level sensor judge or definite water level, the accuracy of pressure type level sensor and reliability directly have influence on water consumption and the security of washing machine in user's use procedure, and the connecting pipe of pressure type level sensor is particularly important as the intermediate link that pressure transmits.
As shown in Figure 1, mainly use according to the connected mode shown in figure at the pressure type level sensor 1 ' on washing machine: connecting pipe 2 ' one end is connected and seals with air chamber mouth 4 ' on outer barrel 3 ', the other end is connected and seals with pressure type level sensor 1 ', when water level rises, gas pressure in enclosure space raises, and connecting pipe 2 ' is delivered to sensor internal with this pressure distortion and causes the relevant contacts action.
Although the pressure type level sensor of above-mentioned use and connecting pipe connected mode can indicated water levels, reach the basic function requirement, but there are some hidden danger on reliability, the connecting pipe accurately prerequisite of transmission of pressure is that inner air tube must be sealing, continuous, if have bubble or remaining ponding in connecting pipe, the distorted signals that sensor is received even causes faulty sensor, and then has influence on complete machine to judgement and the control of water level, easily produces thus safety problem.
Such as, pressure type level sensor 1 ' as shown in Figure 1 is when washing of drum type washing machine, the foam that is produced by cleaning solution can enter in air chamber 5 ' by the connected component of air chamber 5 ' bottom outer barrel 3 ', the mixing power that gathers with washing machine of foam can cause foam to be entered in connecting pipe 2 ' by air chamber mouth 4 ', make the interior air of connecting pipe 2 ' discontinuous, cause the distorted signals that sensor 1 ' receives even to cause faulty sensor; In addition, because machine is installed injustice and connecting pipe 2 ' one side when just being in position on the low side, just having partial product water remains in connecting pipe 2 ', as shown in Figure 2, to common connecting pipe 2 ', ponding 6 ' remaining in connecting pipe 2 ' is suspension in pipe, be up and down air due to ponding 6 ', pressure-acting is suitable, and ponding 6 ' is difficult to slide by Action of Gravity Field, therefore is suspended in connecting pipe 2 '.Just have partial product water and remain in connecting pipe, if ponding is not discharged, ponding can cause the pressure in connecting pipe not conform to actual water level, thereby can cause level sensor misjudgment or malfunctioning.
Application number is the corrugated hose integrated air chamber structure 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 corrugated flexible hose; Air chamber is attached on the branched pipe of corrugated flexible hose one side; The pressure transfer tube is attached on 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 cause the inaccurate problem of water level detecting owing to leaking, and can not solve the above-mentioned accurate problem of water level detecting about the foam in the pressure transfer tube and ponding impact.
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 for detection of the water level that is contained in the water in water drum.Described level sensing unit comprises: the level sensor flexible pipe is used for being communicated with water drum; And level switch, for detection of the pressure in the level sensor flexible pipe and the water level that is contained in the water in 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 equally the above-mentioned accurate problem of water level detecting about the foam in the pressure transfer tube and ponding impact.
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 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 conception 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 connecting pipe, this connecting pipe one end is connected and seals with the air chamber of outer barrel bottom, the other end is connected and seals with the pressure type level sensor, this guiding device is located in connecting pipe, this connecting pipe one end is connected and seals with the air chamber of outer barrel bottom, the other end is connected and seals with the pressure type level sensor, described guiding device comprises that one can prevent that Bulky foam from carrying air and entering the interior foam barrier structure of 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 action of gravitation, this guiding device destroys the foam and the water conservancy diversion that enter in 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 is connected a connecting pipe lead-in wire and is connected with this connecting pipe lead-in wire one end with the foam barrier structure connecting pipe joint, connecting pipe goes between and is arranged in connecting pipe, the connecting pipe jiont treatment in air chamber mouth that connecting pipe one end is communicated with in.
Described connecting pipe joint comprises that one is convenient to insert the cone termination in connecting pipe and is located at the interior body of air chamber mouth, cone termination and body are structure as a whole, direction along end to end on the connecting pipe joint 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 connecting pipe.
Described connecting pipe lead-in wire is a smooth rigid lead-in wire of plastic wire-drawing, drive the connecting pipe lead-in wire and stir in connecting pipe by the turn round vibration that produces of washing machine, destroy the stability of water droplet in connecting pipe, make water droplet slide along connecting pipe inwall and lead-in wire the air inlet chamber of going forward side by side under action of gravitation, so that up and down air conducting in connecting pipe.
During washing of drum type washing machine, have foam in air chamber, and the foam that enters in the air chamber mouth is relatively large, through the connecting pipe joint time, due to " U " shape opening diameter of connecting pipe water-flowing trough less than air chamber mouth internal diameter, the foam that enters in water-flowing trough diminishes relatively, foam continues through becoming less foam relatively after the connecting pipe joint, when this relative less foam moves on again, existence due to the 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 connecting pipe.
This device is applicable to the connecting pipe on any washing machine, and 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 within belonging to 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 with strong points, reliability is high; Use the connecting pipe of this scheme can improve accuracy and the sensitivity of the indication of pressure type level sensor, reduce or indication malfunctioning because of level sensor and forbidden the potential safety hazard that causes; 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 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 C section enlarged diagram in Fig. 6;
Fig. 8 is that guiding device of the present invention prevents the ponding view.
The specific embodiment
As extremely shown in Figure 8 in Fig. 3, for the present invention is used for being provided with connecting pipe guiding device on pressure type level sensor washing machine, increase this guiding device in original connecting pipe, can improve accuracy and the sensitivity of pressure type level sensor indication, reduce or indication malfunctioning because of level sensor and forbidden the potential safety hazard that causes.
be arranged at present the pressure type level sensor 1 on washing machine, be connected with the air chamber 6 of outer barrel 3 bottoms by a connecting pipe 2, this 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 air chamber mouth 7, can prevent that Bulky foam from carrying air and entering in connecting pipe 2, also comprise a guiding ponding member, this guiding ponding member is arranged in connecting pipe 2, can guide water droplet to slide along connecting pipe 2 inwalls and lead-in wire 4 air inlet chamber 6 of going forward side by side under action of gravitation, this guiding device destroys the foam and the water conservancy diversion that enter in connecting pipe and goes out to remain in the interior ponding of connecting pipe to realize the judgement of pressure type level sensor accurately.
Concrete as Fig. 3 and shown in Figure 7, described guiding ponding member is connected a connecting pipe lead-in wire 4 and the connecting pipe joint 5 that is connected with these connecting pipe lead-in wire 4 one ends with the foam barrier structure, connecting pipe lead-in wire 4 is arranged in 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 in connecting pipe 2 and is located at body 52 in air chamber mouth 7, cone termination 51 and body 52 are structure as a whole, on connecting pipe joint 5 along the direction of 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 connecting pipe 2.
Above-mentioned connecting pipe lead-in wire 4 is a smooth rigid lead-in wire of plastic wire-drawing, be arranged in connecting pipe 2, drive the connecting pipe lead-in wire and stir in connecting pipe by the turn round vibration that produces of washing machine, destroy the stability of water droplet in connecting pipe, make water droplet slide along connecting pipe inwall and lead-in wire the air inlet chamber of going forward side by side under action of gravitation, so that up and down air conducting in connecting pipe.When guiding device is installed, first connecting pipe lead-in wire 4 is put into connecting pipe 2, then an end of connecting pipe joint 5 bodies 52 is inserted in air chamber mouth 7, cone termination 51 is exposed on the external, and at last connecting pipe 2 51 is enclosed within on air chamber mouth 7 along the cone termination, and installation is completed in sealing.
as shown in Figure 6 and Figure 7, during washing of drum type washing machine, have foam in air chamber 6, and the foam 8 that enters in air chamber mouth 7 is relatively large, through connecting pipe joint 5 time, due to the diameter of " U " shape opening of connecting pipe water-flowing trough 53 less than air chamber mouth 7 internal diameters, the foam 9 that enters in water-flowing trough 53 can diminish relatively, foam 9 continues through becoming less foam 10 relatively after connecting pipe joint 5, when this relative less foam 10 moves on again, existence due to connecting pipe lead-in wire 4, foam 10 is decomposed and is destroyed, the water meeting following current return-air chamber that foam is entrained, the air that discharges is stayed in connecting pipe 2.
because washing machine is installed injustice and connecting pipe one side when just being in position on the low side, just having partial product water remains in connecting pipe, if ponding is not discharged, ponding can cause the pressure in connecting pipe not conform to actual water level, thereby can cause level sensor misjudgment or malfunctioning, due to connecting pipe lead-in wire 4 (the consulting Fig. 8) that are provided with in connecting pipe 2 of the present invention, connecting pipe lead-in wire 4 passes the ponding water droplet 11 that is suspended in connecting pipe 2, when laundry machine dehydration, the vibration that machine run produces can drive connecting pipe lead-in wire 4 in the interior stirring of 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 can slide the air inlet chamber 6 of going forward side by side along connecting pipe 2 inwalls and lead-in wire 4 under action of gravitation, the generation of connecting pipe inner suspension ponding can be effectively avoided in the use of connecting pipe lead-in wire, making the air in 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 within belonging to 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, the foam that enters with destruction and water conservancy diversion go out to remain in the ponding in 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 with strong points, reliability is high; Use the connecting pipe of this scheme can improve accuracy and the sensitivity of the indication of pressure type level sensor, reduce or indication malfunctioning because of level sensor and forbidden the potential safety hazard that causes; 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 (4)
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 connecting pipe, this connecting pipe one end is connected and seals with the air chamber of outer barrel bottom, the other end is connected and seals with the pressure type level sensor, described guiding device comprises that one can prevent that Bulky foam from carrying air and entering the interior foam barrier structure of 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 action of gravitation, this guiding device destroys the foam and the water conservancy diversion that enter in 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 is connected a connecting pipe lead-in wire and is connected with this connecting pipe lead-in wire one end with the foam barrier structure connecting pipe joint, connecting pipe goes between and is arranged in connecting pipe, the connecting pipe jiont treatment in air chamber mouth that connecting pipe one end is communicated with in.
2. the washing machine connecting pipe guiding device that prevents foam and ponding according to claim 1, it is characterized in that: described connecting pipe joint comprises that one is convenient to insert the cone termination in connecting pipe and is located at the interior body of air chamber mouth, cone termination and body are structure as a whole, direction along end to end on the connecting pipe joint 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 connecting pipe.
3. the washing machine connecting pipe guiding device that prevents foam and ponding according to claim 1, it is characterized in that: described connecting pipe lead-in wire is a smooth rigid lead-in wire of plastic wire-drawing, drive the connecting pipe lead-in wire and stir in connecting pipe by the turn round vibration that produces of washing machine, destroy the stability of water droplet in connecting pipe, make water droplet slide along the connecting pipe inwall air inlet chamber of going forward side by side under action of gravitation, so that up and down air conducting in connecting pipe.
4. the washing machine connecting pipe guiding device that prevents foam and ponding according to claim 2, it is characterized in that: during washing of drum type washing machine, have foam in air chamber, and the foam that enters in the air chamber mouth is relatively large, through the connecting pipe joint time, due to " U " shape opening diameter of connecting pipe water-flowing trough less than air chamber mouth internal diameter, the foam that enters in water-flowing trough diminishes relatively, foam continues through becoming less foam relatively after the connecting pipe joint, when this relative less foam moves on again, existence due to the connecting pipe lead-in wire, foam is decomposed and is destroyed, the water meeting following current return-air chamber that foam is entrained, the air that discharges is stayed in 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 |
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| 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 |
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| CN101824733A CN101824733A (en) | 2010-09-08 |
| CN101824733B true CN101824733B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105442272B (en) * | 2015-11-09 | 2017-09-26 | 海信（山东）冰箱有限公司 | A kind of level sensor, assembly method and washing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| 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 |
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- 2009-03-02 CN CN 200910118376 patent/CN101824733B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN101824733A (en) | 2010-09-08 |
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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. |