CN1769578A - Device for dissolving detergent - Google Patents

Abstract

The present invention provides a detergent dissolving device that uses a small number of parts, has low cost of the parts, shortens the time for manufacturing and assembling, and is miniaturized. The detergent dissolving device of the present invention has a detergent dissolving container, a stirring impeller rotatably installed in the detergent dissolving container, and a driving motor for driving the stirring impeller to rotate. It includes: a cylindrical motor holding cylinder protruding upward from the bottom of the detergent dissolving container to hold a driving motor; and a cylindrical sealing member holding cylinder provided on the upper part of the motor holding cylinder. The agitating impeller has a cylindrical cover portion covering the outer periphery of the motor holding cylinder and the outer periphery of the sealing member holding cylinder, a sky part covering the upper side of the sealing member holding pipe, and a shaft mounted on the sky part and supported on the rotating shaft of the driving motor. The shaft supports the hub portion. It also has a shaft seal member whose outer peripheral side fits inside the seal member holding cylinder, and whose inner peripheral side slides into the side of the shaft supporting boss.

Description

Detergent dissolving device

technical field

The present invention particularly relates to the structure of a detergent dissolving device. While preventing the dissolved residue of powder detergent used in washing machines, etc., in order to effectively use the chemical cleaning power of detergent produced by high-concentration washing liquid, it is possible to dissolve powder detergent with a small amount of water in advance to generate high-concentration washing. liquid.

Background technique

Currently, powdered detergents used in washing machines and the like are thrown into the washing tub as they are in powder form, and are dissolved to a certain extent in the process of supplying washing water to the washing tub according to the amount of laundry. Further, at the beginning of washing, further dissolve by stirring and turning of a shaker.

However, in the water supplied to the washing tank, for example, when the winter is cold, the powdered detergent may cover the clothes and be difficult to dissolve, and the washing may be carried out with the dissolved detergent. In addition, since a large amount of water is used to dissolve the powder detergent, it cannot be a high-concentration washing liquid. Therefore, it is not possible to effectively use the so-called cleaning method of soaking the various dirt attached to the clothing with a high-concentration washing solution to decompose the various dirt.

In addition, as a detergent dissolving device that generates a high-concentration washing liquid from powder detergent, Japanese Patent Application Laid-Open No. 2002-360981 (Patent Document 1), Japanese Patent Laid-Open No. 2003-010592 (Patent Document 2), and Japanese Patent Application Laid-Open No. Publication No. 2004-8282 (Patent Document 3).

Laundry machines mounted on washing machines and the like described in JP-A-2002-360981 (Patent Document 1), JP-A-2003-010592 (Patent Document 2), and JP-A-2004-8282 (Patent Document 3) The agent dissolving device discloses the following structure. The device is provided with a drive shaft penetrating through the bottom wall of the detergent dissolving container, and a stirring impeller is mounted on the drive shaft. Furthermore, the detergent dissolving container and the stirring motor are disposed on the metal base plate in a state of paralleling in the horizontal direction, the driving pinion is inserted on the front end of the drive shaft of the stirring motor, and the detergent dissolving container is disposed on the bottom surface of the bottom wall. The shaft seal part is equipped with a bearing for preventing the vibration of the drive shaft at the lower side, and a driven pulley is embedded in the front end of the detergent dissolving container penetrating the drive shaft at its center, and the drive pinion and the driven pulley are synchronized. with connection.

[Patent Document 1] JP-A-2002-360981

[Patent Document 2] JP-A-2003-010592

[Patent Document 3] JP-A-2004-8282

Contents of the invention

The problem to be solved by the invention

In the detergent dissolving devices described in Patent Document 1, Patent Document 2, and Patent Document 3, since the drive pinion and the driven pulley are connected by a timing belt, (1) the number of parts used must be large. In addition, (2) due to the use of The number of parts is large, and assembly also takes time. Furthermore, (3) Since the stirring motor is disposed adjacent to the detergent dissolving container, the installation space must be increased.

The present invention is made in view of the problems caused by such prior art, and its object is to provide a detergent dissolving device which (1) reduces the number of parts used as much as possible, (2) reduces the cost of parts, and shortens the manufacturing process at the same time. assembly time, (3) miniaturization.

The way to solve the problem

The detergent dissolving device of the present invention has a detergent dissolving container, a stirring impeller rotatably mounted in the detergent dissolving container, and a driving motor for rotationally driving the stirring impeller. It includes: a cylindrical motor holding cylinder that protrudes upward from the bottom of the detergent dissolving container to hold a driving motor, and a cylindrical sealing member holding cylinder provided on the upper portion of the motor holding cylinder. The agitating impeller includes a cylindrical cover portion covering the outer periphery of the motor holding cylinder and the outer periphery of the sealing member holding cylinder, a ceiling portion covering the upper side of the sealing member holding cylinder, and is provided on the ceiling portion and supported on the rotating shaft of the driving motor. The shaft supports the sleeve part. It also has a shaft seal member whose outer peripheral side fits inside the seal member holding cylinder, and whose inner peripheral side is in sliding contact with the shaft support boss side.

According to the present invention, it is possible to provide a detergent dissolving device that uses a small number of parts, reduces the cost of parts, shortens assembly time during manufacture, and is compact.

Description of drawings

Description of drawings

Fig. 1 is the longitudinal sectional view of the detergent dissolving device of the embodiment of the present invention;

Fig. 2 is the plan view of the detergent dissolving device of the embodiment of the present invention;

Fig. 3 is a plan view of the detergent dissolving device with the water injection parts removed according to the embodiment of the present invention;

Fig. 4 is the A-A sectional view of Fig. 3 of the embodiment of the present invention;

Fig. 5 is the bottom plan view of the detergent dissolving device of the embodiment of the present invention from below;

Fig. 6 is an expanded view of the components of the detergent dissolving device according to the embodiment of the present invention;

Fig. 7 is the figure that represents the liquid level state of detergent dissolving of the embodiment of the present invention;

Fig. 8 is the sectional view of the stirring impeller of the embodiment of the present invention;

Fig. 9 is a perspective view of an intermediate ring according to an embodiment of the present invention;

Fig. 10 is a perspective view of the B-B section of Fig. 2 according to an embodiment of the present invention;

Fig. 11 is a perspective view of a water injection component according to an embodiment of the present invention;

Fig. 12 is the C-C sectional view of Fig. 11 of the embodiment of the present invention;

Fig. 13 is a B-B sectional view of Fig. 2 according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention will be described below with reference to the drawings.

First, the structure of the detergent dissolving device will be described in sequence along Fig. 1 to Fig. 12 .

The detergent dissolving container 1 includes a cylindrical motor holding cylinder 3 protruding upward from approximately the center of a bottom wall portion 2 forming a bottom, and a cylindrical sealing member holding cylinder 4 provided on the upper portion of the motor holding cylinder 3 . The detergent dissolving container 1, the motor holding cylinder 3 and the sealing member holding cylinder 4 are integrally formed with synthetic resin.

The motor holding cylinder 3 has a lower holding cylinder 3 a extending on the outer bottom side of the bottom wall portion 2 . Positioning ribs 5 extending in the longitudinal direction are provided in the lower holding cylinder 3 a and the motor holding cylinder 3 .

The driving motor 6 is inserted through the lower opening of the lower holding tube 3 a and is held in the motor holding tube 3 .

As shown in FIG. 6 , in the driving motor 6 , a metal ring 7 is wound and fixed on the outer periphery. Slits 8 are formed by both ends of the metal ring 7 . Since the positioning rib 5 is inserted and fitted into the slit 8, the drive motor 6 is positioned and held so as to be able to stop its rotation.

The driving motor 6 has a rotating shaft 9 . On the rotating shaft 9, an intermediate ring 13 is supported at the front end as shown in FIG. 9 . The intermediate ring 13 has knurls 13a for detent rotation on the outer peripheral side. The intermediate ring 13 press-fits and fixes the inner peripheral side to the outer periphery of the rotating shaft 9 .

The stirring impeller 10 driven and rotated by the driving motor 6 is formed of synthetic resin. As shown in FIG. 8, the stirring impeller 10 has: a cylindrical cover portion 10a covering the outer periphery of the motor holding cylinder 3 and the outer periphery of the sealing member holding cylinder 4; In the patio part 10c, a shaft supporting boss part 10b for supporting the rotating shaft 9 of the driving motor 6 is provided.

The shaft supporting boss portion 10b has a metal collar 15 on the outer periphery. The collar 15 is integrally formed with the shaft support boss portion 10b.

The intermediate ring 13 is press-fitted into the shaft supporting hole of the shaft supporting boss portion 10b. The intermediate ring 13 is firmly connected to the shaft supporting boss portion 10b by the knurling 13a for preventing rotation. Since the metal collar 15 is provided on the outer periphery of the shaft support boss portion 10b, the intermediate ring 13 can be expected to withstand strong press-fitting and be more firmly coupled.

Stir and rotate the stirring impeller 10 to dissolve the detergent. Due to the strong viscosity of the detergent solution, an opposite force is generated in the driving motor 6 . However, as described above, the driving motor 6 is held without rotation by the engagement of the positioning rib 5 of the motor holding cylinder 3 and the slit 8 of the driving motor 6 . In addition, the direction of the terminal 12 of the drive motor 6 to which the wire 11 (shown in FIG. 7 ) connected to the power source is attached can always be in the same direction.

The shaft seal member 14 shown in FIG. 6 has an annular shape and is formed of rubber. The shaft seal member 14 is held by the seal member holding cylinder 4 as shown in FIGS. 1 and 7 . The outer periphery 14a of the shaft seal member 14 fits inside the seal member holding cylinder 4, and the inner periphery 14b is in sliding contact with the collar 15 of the shaft support boss portion 10b.

By sealing with this shaft seal member 14 , it is possible to prevent the detergent solution from flowing to the driving motor 6 .

Since the collar 15 with which the inner periphery 14b of the shaft seal member 14 is in sliding contact is made of metal, it can withstand the press-fitting of the intermediate ring 13 into the shaft supporting boss portion 10b, and can suppress expansion of the outer diameter to a large diameter. Therefore, since the sliding contact state between the inner periphery 14b of the shaft sealing member 14 and the collar 15 remains constant without changing, good shaft sealing can be maintained.

In addition, a structure in which the detergent solution hardly flows into the shaft seal member side is formed.

That is, the stirring impeller 10 covers the outer periphery of the motor holding cylinder 3 and the sealing member holding cylinder 4 with a part 10a of the cover, and covers the upper side of the sealing member holding cylinder 4 with the ceiling portion 10c. Furthermore, a labyrinth seal with a narrow gap is formed between the stirring impeller 10 and the motor holding cylinder 3 .

Therefore, even if the detergent solution flows into between the stirring impeller 10 and the motor holding cylinder 3, the air layer accumulated in the labyrinth seal structure prevents the detergent solution from flowing deep into the narrow gap. In this way, since the inflow of the detergent solution is prevented by the labyrinth seal structure of the narrow gap, the situation that the detergent solution reaches the shaft seal member 14 usually does not occur.

As shown in Fig. 1, Fig. 6, Fig. 7, below the detergent dissolving container 1, the motor cover 16 (preventing falling off and fixing part concurrently) that can restrain the driving motor 6 that is inserted into the motor holding cylinder 3 from the downside is installed. ). The motor cover 16 is fitted on the outer periphery of the lower holding cylinder 3a, and is fastened by screwing a plurality of bolts 18 to the boss portion 17 provided on the lower surface of the detergent dissolving container 1. As shown in FIG.

On the lower side of the detergent dissolving container 1, as shown in FIGS. 1 and 7, a sprinkler cover 19 shown in FIG. 6 is attached. The sprinkler cover 19 has a plurality of openings 19a for spreading the high-concentration dissolved detergent solution over the clothes in the washing tub (not shown).

The detergent dissolving container 1 and the sprinkler cover 19 are fitted together by fitting the protrusion 21 provided on the lower end periphery of the detergent dissolving container 1 and the groove 22 provided on the upper end periphery of the sprinkler cover 19 . A plurality of metal wires 23 are interposed between fitting portions of the protrusion 21 and the groove 22 . By heating the metal wire 23 with electricity, the fitting portion of the detergent dissolving container 1 made of synthetic resin and the sprinkler cover 19 is thermally welded.

By this heat welding, the fitting part of the detergent dissolving container 1 and the sprinkler cover 19 can be firmly bonded while keeping watertight.

The water injection member 48 shown in FIG. 7 is provided on the upper part of the detergent dissolving container 1 as shown in FIG. 10 . As shown in FIGS. 11 and 12, the water injection member 48 has a dissolving water injection port 60 for injecting the powdered detergent in the detergent dissolving container 1 into dissolving water. The dissolved water injection port 60 is provided on the front end side of the water injection member 48 and has a horizontally elongated shape extending in the lateral direction.

A connection port 61 for a water injection pipe (not shown) is provided on the rear side of the water feeding member 48 . The connection port 61 communicates with the dissolved water injection port 60 . The water injection member 48 is formed with two water injection member pieces brought together up and down. In the same way as the above-mentioned detergent dissolving container and sprinkler cover, the upper and lower joint parts are thermally welded with metal wires.

The water injection part 48 is freely installed on the detergent dissolving container 1 with screws 49 . Since the front end side of the water injection part 48 protrudes into the detergent dissolving container 1, the dissolving water can be injected into the center of the detergent dissolving container 1. Therefore, the dissolved water in the powdered detergent in the detergent dissolving container 1 is easily dispersed. In addition, since the dissolving water injection port 60 is horizontally elongated, the dissolving water can be poured down in a wide range, and the dissolution of the powder detergent can be facilitated.

It is desirable that the liquid level 26 of the detergent solution is lower than the shaft seal member 14 as shown in FIG. 7 . This is because the detergent solution does not reach the shaft seal member 14 even if it is injected deep into the narrow gap.

When the stirring impeller 10 rotates, the liquid level of the detergent solution becomes the bowl-shaped liquid level 27 . The liquid level in the central portion of the detergent dissolving container 1 is lowered, so that the detergent dissolving liquid does not flow into the shaft seal member 14 during agitation and rotation.

Powder detergents often contain water-softening ingredients called zeolites. The zeolite also acts as an abrasive, and for example, if it rotates while entering the metal portion 15 of the impeller 10 and the rubber shaft seal member 14, the seal portion may be worn and water may leak.

However, since the liquid level 26 lower than that of the shaft seal member 14 before the agitation and rotation is further lowered at the center during the agitation and rotation, the inflow of the detergent solution into the shaft seal member 14 can be completely suppressed.

In the detergent dissolving container 1 , an overflow port 70 is provided at a position opposite to the water injection member 48 . The opening 19 a of the cover 19 is located below the overflow port 70 . The overflow port 70 is provided at a lower height than the water injection member 48 as shown in FIG. 13 . When water overflows, it flows from the overflow port 70 to the opening 19a. No water overflow occurs over the water injection member 48 .

In the detergent dissolving container 1 , an opening 52 is provided on a side surface on the overflow port 70 side. The opening part 52 communicates with the overflow port 70 and the opening part 19a. Even if the opening 52 freezes in winter, overflow water and the like can be discharged from the opening 52 .

In the detergent dissolving container 1, there is a siphon mechanism 71 as shown in FIG. 10 . The siphon mechanism 71 has an outer tube 72 and an inner tube 73 . If the water level remaining in the detergent dissolving container 1 exceeds the upper end of the inner pipe 73 , the water in the detergent dissolving container 1 descends through the inner pipe 73 and flows toward the sprinkler cover 19 . The water level of the detergent dissolving container 1 drops, and flows out from the suction port at the bottom of the outer pipe 72 to the air opening.

The detergent solution produced in the detergent dissolution container 1 is discharged to the sprinkler cover 19 through the siphon mechanism 71 .

That is, by the agitation and rotation of the agitation impeller 10, water is injected from the water injection member 48 after the detergent solution is generated. The water injection is carried out to the position where the siphon mechanism 71 performs the siphon action, and the detergent solution generated by the siphon action is discharged.

Since the upper end of the inner tube 73 of the siphon mechanism 71 is lower than the height H of the overflow port 70, a siphon effect can occur before draining from the overflow port 70, and all the detergent solution generated can be discharged.

If the siphon mechanism 71 is full, the water level of the detergent dissolving container 1 increases. Since the overflow selected from the above-mentioned overflow port 70 is being carried out, the detergent solution generated will not overflow the water injection part 48 or be discharged from the upper surface of the detergent dissolving container 1. Edge overflows.

As described above, the embodiment of the present invention does not require a transmission mechanism including a timing belt because the stirring impeller is directly driven on the rotating shaft of the driving motor. The number of parts used can be minimized.

Since the number of parts is small, the material cost is of course reduced, and the time to complete assembly can be greatly shortened.

Furthermore, a transmission mechanism including a timing belt is unnecessary, and the overall size is reduced. It can also be installed on small washing machines with a washing capacity of 4kg and 5kg.

Claims (10)

1. device for dissolving detergent, it has the detergent dissolution container, rotate the agitator arm freely be contained in this detergent dissolution container and the drive motor of this agitator arm of rotating drive, it is characterized in that, comprising: upwards swell, keep the motor of the tubular of described drive motor to keep tube from the end of described detergent dissolution container; Be located at this motor and keep the seal member of tube top cylinder shape to keep tube,

Described agitator arm comprises the cover cylindraceous portion that covers motor and keep the periphery of tube and periphery that described seal member keeps tube, cover courtyard portion that described seal member keeps the upside of tube, be located in the courtyard portion and the axle that is supported on the turning cylinder of described drive motor is supported shaft sleeve part

Also have inboard chimeric, interior all sides and a shaft sealing part that the support shaft sleeve part is breakked away and connect that outer circumferential side and described seal member keep tube.

2. device for dissolving detergent as claimed in claim 1 is characterized in that, is provided with described axle to support shaft sleeve part to form the metallic collar of one, makes the interior all sides of described shaft sealing part and the periphery sliding-contact of this axle collar.

3. device for dissolving detergent as claimed in claim 1 or 2, it is characterized in that, make described metal adapter ring be clipped on described turning cylinder and described axle is supported between the shaft sleeve part, form the annular knurl of locking usefulness at the outer circumferential side of this adapter ring, all side pressures go into to be fitted to the periphery of described turning cylinder in making.

4. as each described device for dissolving detergent in the claim 1～3, it is characterized in that it is littler than the external diameter of described motor maintenance tube that described seal member keeps the external diameter of tube to form,

Described cover cylindraceous portion, it keeps the internal diameter at tube place little in the face of described seal member keeps the internal diameter at tube place to form specific surface to described motor.

5. as each described device for dissolving detergent in the claim 1～4, it is characterized in that, in the detergent dissolution container, be provided with the water filling parts of the water that injects the powder detergent in the dissolving detergent dissolution vessel,

The dissolving water inlet that is located in the described water filling parts has the shape of growing crosswise.

6. device for dissolving detergent as claimed in claim 5 is characterized in that, is provided with described dissolving water inlet in the front of water filling parts, places the water filling parts in front outstanding mode in described detergent dissolution container of water filling parts.

7. device for dissolving detergent as claimed in claim 6 is characterized in that, described water filling parts are freely installed with the screw mounting or dismounting.

8. as each described device for dissolving detergent in the claim 1～6, it is characterized in that having the water jet cover of the lysate inlet of the detergent dissolution liquid that in washing machine etc., injects dissolving in the downside setting of described detergent dissolution container,

In described detergent dissolution container, be provided with the siphon mechanism that makes described detergent dissolution liquid flow to described water jet cover.

9. device for dissolving detergent as claimed in claim 8 is characterized in that, is provided with the gap that the described detergent dissolution liquid that overflows is flowed down to described water jet cover in described detergent dissolution container,

Described gap is located at than the low position of described water filling parts.

10. each described device for dissolving detergent in claim 1～9 is characterized in that, suppresses the liquid level of the detergent dissolution liquid that dissolves in described detergent dissolution container lowlyer than shaft sealing part.

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