CN1265758C - Tableware washer - Google Patents

Abstract

A dish washer having a switching valve (17) in the middle of a water path connecting a washing pump and a plurality of washing nozzles. The switching valve (17) has an inlet (19) for introducing water pressurized by the washing pump, a plurality of outlets (20) for guiding the introduced water to a plurality of washing nozzles, and a connection between the inlet (19) and the outlet (20). The water passage part (18), and the blocking member (21) which sequentially blocks the outlet (20) while rotating intermittently in the water passage part (18). The blocking member (21) reciprocates between the inlet (19) and the outlet (20). It is also provided with a cam mechanism (22, 23) that rotates to a predetermined angle in one direction in conjunction with the reciprocating motion. The hydraulic force is produced by the alternating action of external forces in opposite directions.

Description

dish washer

technical field

The present invention relates to a dishwasher for washing dishes by spraying water pressurized by a washing pump from a plurality of washing nozzles.

Background technique

Such a conventional dishwasher is constructed as shown in FIGS. 9 and 10 . Hereinafter, conventional examples will be described with reference to the drawings.

The water supply path 1 supplies tap water to the dishwasher main body 2 . Water supply is controlled by water supply valve 3. The washing tank 4 provided inside the dishwasher main body 2 is equipped with the water storage part 5 which stores the supply water inside. The water level sensor 6 is provided in communication with the water storage part 5 .

The water stored in the water storage unit 5 is heated by the heater 7 provided in the water storage unit 5 and pressurized by the washing pump 8 at the same time. Pressurized water is sprayed to the tableware in the tableware frame (cage) 10 from a plurality of cleaning nozzles 9 provided to clean the tableware. The drain pump 11 drains the water in the cleaning tank 4 .

The dishwasher main body 2 is provided with a freely openable front door 12 so that the dish rack 10 can be taken in and out. The leftovers filter 13 blocks the leftovers attached to the tableware.

The operation of the above structure will be described. The tableware is placed in the tableware frame 10 and put into the cleaning tank 4 , once the operation starts, the water supply valve 3 is opened and water is supplied to the cleaning tank 4 through the water supply path 1 . The supplied water is stored in the water storage part 5 of the washing tank 4 . Then, once the water level sensor 6 detects that the water level has reached the specified water level, the water supply valve 3 is closed, and the water supply is completed, and the washing pump 8 is driven thereupon.

The water stored in water storage unit 5 is heated by heater 7 and pressurized by washing pump 8 . The pressurized water is sprayed from the washing nozzle 9 to the dishes in the dish frame 10 to wash the dishes. Once the cleaning is finished, the water in the cleaning tank 4 is drained by the drain pump 11 .

In addition, the basic structure in JP-A-5-176875 is the same as that of the above-mentioned conventional example, and only the number of cleaning pumps corresponding to each cleaning nozzle is provided, and by selectively spraying water from the cleaning nozzles, it is possible to realize Low noise and water saving during operation.

However, in this conventional structure, since water is sprayed from a plurality of cleaning nozzles 9 at the same time, the noise is large, and a large amount of water in the cleaning tank 4 is required.

In addition, a structure in which only the number of cleaning pumps corresponding to each cleaning nozzle is provided so that water is selectively sprayed from each cleaning nozzle can reduce noise and save water, but the installation of multiple cleaning pumps is related to an increase in cost. There is a problem of increasing the size of the entire facility.

Contents of the invention

The present invention was made in view of the problems of the prior art described above.

The dishwasher of the present invention includes a washing pump, a plurality of washing nozzles, and a switching valve disposed in the middle of a water path connecting the washing pump and the plurality of washing nozzles. The switching valve has an inlet for introducing water pressurized by the washing pump, a plurality of outlets for leading the introduced water to a plurality of washing nozzles, a water passage connecting the inlet and the outlet, and sequentially blocking the outlets. A blocking member for a plurality of outlets reciprocating between the inlets and the outlets. That is, it is a structure in which water pressurized by a washer pump is sequentially introduced into a plurality of wash nozzles through a switching valve.

Description of drawings

Fig. 1 is a cross-sectional view of a switching valve for a dishwasher according to an embodiment of the present invention.

Fig. 2 is a sectional view of the dishwasher.

Fig. 3 is a side sectional view of the dishwasher.

Fig. 4.A is a side view of the blocking part of the switching valve of the dishwasher, B is a perspective view of the top of the switching valve of the dishwasher, and C is a perspective view of the bottom of the blocking part of the switching valve of the dishwasher .

Fig. 5.A is a sectional view of the A-A line of the dishwasher, B is a sectional view of the B-B line of the dishwasher, C is a sectional view of the C-C line of the dishwasher, and D is a sectional view of the D-D line of the dishwasher.

Fig. 6 is a top view of the dishwasher in which the blocking member is in contact with the opening surface.

Fig. 7 is a perspective view of the sliding surface constituting the cam mechanism of the dishwasher.

Fig. 8. A is an upper perspective view of the blocking part with the counterweight part fixed in the dishwasher, and B is a lower perspective view of the blocking part with the counterweight part fixed in the dishwasher.

Fig. 9 is a sectional view of a conventional dishwasher.

Fig. 10 is a side sectional view of a conventional dishwasher.

Detailed ways

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In addition, the same code|symbol is attached|subjected to the member of the same structure as a conventional example, and the description is abbreviate|omitted.

As shown in FIGS. 2 and 3 , the washing tank 4 is provided inside the main body 2 of the dishwasher. Inside the cleaning tank 4, there is a water storage unit 5 for storing supply water. The heater 7 provided in the water storage part 5 heats the water stored in the water storage part 5 .

Inside the cleaning tank 4, a cleaning nozzle 14 is provided on the left side, a cleaning nozzle 15 is provided on the right side, and a cleaning nozzle 16 is provided on the rear side. A switching valve 17 is provided between the cleaning nozzles 14 to 16 and the cleaning pump 8 . The switching valve 17 is switched sequentially so as to pass the water pressurized by the washing pump 8 to any one or two of the washing nozzles 14 to 16 .

The switching valve 17 is configured as shown in FIG. 1 . The water passage 18 connects an inlet 19 for introducing water pressurized by the washing pump 8 and outlets 20a to 20d for leading the introduced water to the washing nozzles 14 to 16 respectively (see FIG. 5A for details). Inside the water passage portion 18, a blocking member 21 that reciprocates between the inlet 19 and the outlets 20a to 20d and sequentially blocks the outlets 20a to 20d while rotating intermittently is provided. The closing member 21 is provided with cam mechanisms 22 and 23 that rotate by a predetermined angle in one direction in conjunction with the reciprocating movement of the closing member 21 .

A predetermined gap is provided between the outer circumference of the blocking member 21 and the inner circumference of the water passage 18 so that food contained in water passing through the water passage 18 can pass between the blocking member 21 and the water passage 18 .

The inlet 19 opens towards the direction perpendicular to the reciprocating movement of the blocking member 21 so as to allow the lateral water flow to reach the cam mechanism 23 . With such a structure, it is possible to prevent foreign matter such as food from clogging and accumulating on the cam mechanism 23 .

Fig. 4A is a side view of the blocking member, Fig. 4B is a perspective view of the top of the blocking member, and Fig. 4C is a perspective view of the bottom of the blocking member.

The blocking member 21 consists of a disc 26 with a notch 24 and a flat 25 . The sliding surfaces 27a, 27b are provided on the upper surface of the disk 26 to constitute the cam mechanism 22 . The sliding surfaces 27a and 27b are inclined, and are continuous on the same circumference about the center of the disk 26 as an axis. In addition, a plurality of sliding surfaces 28 form a cam mechanism below the disc 26 . The sliding surface 28 has an inclination and is continuous on the same circumference about the center of the disk 26 as an axis. The guide hole 29 is provided at approximately the center of the disc 26 .

What Fig. 5A-D shows is the section of switching valve, what Fig. 5A shows is the A-A line sectional view of Fig. 1, Fig. 5B shows the B-B line sectional view of Fig. 1, and Fig. 5C shows the C-C line of Fig. 1 The cross-sectional view shown in FIG. 5D is a cross-sectional view taken along line D-D in FIG. 1 .

As shown in FIG. 5A , the outlets for leading water to the washing nozzles 14 to 16 are composed of four outlets 20a to 20d. Outlet 20a directs water to the left washer nozzle 14, outlet 20c directs water to the right washer nozzle 15, outlet 20d directs water to the rear washer nozzle 16, and outlet 20b directs water to both the washer nozzles 14 and 15.

The outlets 20a to 20d have a flat opening surface 30 on the same plane. The outlets 20 a to 20 d face the flat portion 25 on the closing member 21 . The hole diameter D1 of the opening surface 30 is smaller than the outer diameter D2 of the flat portion 25 . When the closing member 21 reciprocates between the inlet 19 and the outlets 20a to 20d, the flat portion 25 is in watertight contact with the opening surface 30 . At this time, any one of the outlets 20a to 20d corresponding to the positions of the notches 24 in the closing member 21 serves as an outlet for guiding water to the washer nozzle, and the remaining three outlets 20a to 20d are blocked.

FIG. 6 shows an example in which the flat portion 25 of the closing member 21 is in contact with the opening surface 30 . In this case, the outlets 20a, 20c, and 20d are blocked, and only the outlet 20b is opened, so that water is guided to both the washing nozzles 14, 15.

The blocking member 21 uses an upward movement as a forward path, and a downward movement as a return path. At the end of the outward path, the flat portion 25 of the blocking member 21 is in contact with the opening surface 30 , but at the end of the return path, there is a predetermined gap between the flat portion 25 of the blocking member 21 and the opening surface 30 . During one reciprocating movement, the blocking member 21 is set to rotate only the angle formed by two adjacent outlets 20a to 20d around the central axis 31 of the guide hole 29 by using the cam mechanisms 22 and 23 .

Therefore, when the blocking member 21 descends from the state shown in FIG. 6 to move toward the end of the return path, and then the blocking member 21 ascends to move toward the end of the outward path, the blocking member 21 only rotates by the angle formed by the outlet 20b and the outlet 20c. Then, the outlets 20a, 20b, and 20d are blocked, and only the outlet 20c is opened, and water is guided to the washing nozzle 15 on the right side.

In addition, the reciprocating movement of the blocking member 21 is mainly performed by the hydraulic force of the water pressurized by the washing pump 8 and the gravity acting on the blocking member 21 . Although gravity usually acts on the blocking member 21, since the hydraulic force generated by the cleaning pump 8 is much greater than the gravity acting on the blocking member 21, the gravity effect when the blocking member 21 is subjected to hydraulic action can be completely ignored. Further, the blocking member 21 is reciprocated by alternately operating and stopping the cleaning pump 8 .

In this way, while the blocking member 21 is reciprocating between the inlet 19 and the outlets 20a-20d, due to the center axis 31 of the guide hole 29 rotating at a predetermined angle, the outlets 20a-20d are simultaneously blocked three by three, and the outlets One of 20a-20d opens sequentially. For example, when the rotation direction of the blocking member 21 is as shown in FIG. 6 , the outlets are opened in the order of 20a 20b 20c 20d 20a, and the water is guided to the cleaning nozzle 14 and 15 in sequence. Nozzle 15 Clean nozzle 16 Clean nozzle 14. Here, outlet 20b is connected to both washing nozzles 14 and 15 .

Next, the cam mechanism 22 will be described. The sliding surface 27a of the closing member 21 is in sliding contact with the auxiliary rib 32 serving as a part of the opening surface 30 constituting the outlets 20a to 20d, constituting the cam mechanism 22 to convert linear motion into rotational motion. The auxiliary ribs 32 radially extend from approximately the center of the opening surface 30 at approximately equidistant intervals.

The closing member 21 is set at a position where the sliding surface 27a and the auxiliary rib 32 overlap each other when viewed from above, that is, at the end of the return path. Then, the closing member 21 is raised by the hydraulic force of the water pressurized by the washing pump 8 , and the sliding surface 27 a comes into contact with the auxiliary rib 32 .

The blocking member 21 also receives an upward force due to hydraulic force after contact. Therefore, sliding occurs due to the inclination of the sliding surface 27a, and it moves up while rotating. When the auxiliary rib 32 slides the sliding surface 27a, the auxiliary rib 32 comes into contact with the flat portion 25 of the closing member 21, and the lifting and rotating motion of the closing member 21 stop simultaneously. At this time, all of the plurality of auxiliary ribs 32 are in contact with the flat portion 25 of the closing member without gaps. That is, the outlet 20 blocked by the disc 26 of the blocking member is impermeable to water. In addition, if the sliding surface 27b and the auxiliary rib 32 are set to be in sliding contact, the rotation direction of the blocking member 21 is directed in the opposite direction.

Here, if the sliding surface 27a is formed with a helical surface about the central axis 31, the auxiliary rib 32 will contact the sliding surface 27a on a straight line, and the sliding will be smooth. That is, wear can be reduced. In addition, due to the self-cleaning effect, the accumulation of dirt and the biting of foreign matter on the surface of the sliding surface 27a are prevented, and the movement of the blocking member 21 becomes smooth, which is beneficial to improving durability and reliability.

Here, as shown in FIG. 6 , the inlet 19 for guiding water to the water passage 18 is opened in a direction deviated from the central axis 31 to generate a vortex inside the water passage 18 . The direction of this vortex is consistent with the rotation direction of the blocking member 21 , and it serves to assist the rotation of the blocking member 21 by the cam mechanism 22 . Therefore, the reliability of rotation of the blocking member 21 can be improved, and the reliability of operation as the switching valve 17 can be improved.

Next, the cam mechanism 23 will be described. FIG. 7 is a perspective view of the sliding surface 33 forming the cam mechanism 23 that is paired with the sliding surface 28 of the closing member 21 . The sliding surfaces 33 have an inclination and are continuous on the same circumference about the central axis 31 . In addition, a shaft 34 that is fitted into the guide hole 29 of the closing member 21 is provided at the center of the sliding surface 33 as a guide member that stabilizes the reciprocating motion of the closing member 21 . The section of the shaft 34 is cross-shaped, and by setting a large gap with the inner peripheral surface of the guide hole 29, foreign matter such as food contained in the passing water is not easy to block. In this manner, the operation reliability of the switching valve 17 can be improved by utilizing the functions of the guide hole 29 and the shaft 34 .

The cam mechanism 23 operates in the same manner as the cam mechanism 22 , and converts linear motion into rotational motion by bringing the sliding surface 28 of the closing member 21 into sliding contact with the sliding surface 33 . That is, the blocking member 21 is set at a raised position, that is, at the end of the forward path, and the sliding surface 28 and the sliding surface 33 are overlapped when viewed from below. When the blocking member 21 descends due to gravity without being subjected to hydraulic force when the washing pump 8 is stopped, the sliding surface 28 and the sliding surface 33 come into contact. Since the blocking member 21 receives a downward force due to gravity even after contact, it slides due to the inclination of the sliding surface 28 and descends while rotating.

When the sliding surface 33 slides the sliding surface 28 , the downward movement and the rotational movement of the closing member 21 stop at the same time. At this time, the flat portion 25 of the blocking member 21 and the outlet 20 are kept at a predetermined distance and are in a static state. Then, next time, when the blocking member 21 is subject to hydraulic force and rises again, the gap 24 of the blocking member 21 is consistent with the outlets other than the outlets 20a-20b of the last opening, for example, the next adjacent outlet of the outlet 20a. 20b agrees.

Here, if the sliding surface 28 and the sliding surface 33 are formed by a helical surface about the central axis 31 , the sliding surface 28 and the sliding surface 33 will be in contact on the same surface. That is, smooth sliding can reduce wear. In addition, this also has the effect that dirt and the like are not easy to accumulate on the surfaces of the sliding surface 28 and the sliding surface 33 , which is beneficial to the smooth movement of the blocking member 21 .

Here, the reciprocating motion of the blocking member 21 will be described in more detail. FIG. 8A is a perspective view showing a state in which the weight member 35 is fixed to the blocking member 21 . Fig. 8B is its plan view. Claws 36 are provided on the surface of the disc 26 constituting the blocking member 21 on the side close to the inlet 19 in the water passage 18 . The weight member 35 made of a sheet metal material is fitted into the claw 36 to be fixed. As shown in FIG. 8B , the shape of the counterweight member 35 is set so that its center of gravity is close to the notch 24 side of the disk 26 , so that the center of gravity of the combination of the blocking member 21 and the counterweight member 35 is located near the central axis 31 .

Since the motion when the blocking member 21 descends is carried out by gravity, if the weight of the blocking member 21 as a whole is large, it descends quickly. Along with this, the descending time is shortened, and the time required for one reciprocating movement can be shortened. The time required for one reciprocating movement can be adjusted by thickening the weight member 35 made of a sheet metal material and overlapping a plurality of members 35 .

Since the blocking member 21 has the notch 24 on the disc 26 , the center of gravity of the blocking member 21 is spaced from the central axis 31 and deviates from the central axis 31 . Since the blocking member 21 is guided to reciprocate by the fitting of the guide hole 29 and the shaft 34 in the water passage portion 18, when the center of gravity of the blocking member 21 deviates, the blocking member 21 reciprocates obliquely as it is. Therefore, the sliding surface 27 a and the auxiliary rib 32 , or the sliding surface 28 and the sliding surface 33 do not mesh well, and the cam mechanisms 22 and 23 may not work normally.

That is, if the blocking member 21 performs a reciprocating motion while inclined, the cam mechanisms 22, 23 do not work well, and the linear motion is not converted into a rotational motion. In addition, the outlets 20a to 20d cannot be blocked sequentially, so that the operation of the switching valve 17 becomes unstable. In addition, if the blocking member 21 reciprocates obliquely, the contact between the guide hole 29 and the shaft 34 is not uniform, and local wear is also remarkably generated.

Therefore, by using the weight member 35 to correct the center of gravity of the entire blocking member 21 near the central axis 31, the inclination of the blocking member 21 during reciprocating motion can be reduced as much as possible. Like this, cam 22,23 works normally all the time. That is, the linear motion of the blocking member 21 is always accurately converted into a rotational motion, the outlets 20a to 20d can be sequentially blocked, and the operation of the switching valve 17 is extremely stable. In addition, by fixing the weight member 35, the overall weight of the blocking member 21 is increased, and the specific gravity with respect to water is increased, so that it is less likely to receive resistance from water when descending. This also stabilizes the replacement operation of the blocking member 21 .

In addition, in Figs. 8A-B, although the weight member 35 is fitted into the claw 36 and fixed, it does not necessarily have to be fixed in this way. For example, as shown in FIGS. 3 to 6 , a method of fixing the weight member 35 by deforming a resin protrusion provided on the closing member 21 due to heat may be employed. In addition, a method of fixing with screws, a method of fixing with a C-shaped lock ring or an E-shaped lock ring, a method of fixing with a cotter pin, etc., etc. may also be used.

In addition, as a method of increasing the weight of the blocking member 21, the blocking member 21 may be made of a resin molding material, and a heavy weight member made of metal or the like may be wrapped inside the blocking member 21. In this case, there is no need to worry about the weight member falling off during the switching operation of the blocking member 21, and it is easy to prevent the weight member from rusting, and low-cost metal materials can be used.

In addition, if the weight member 35 is fixed outside the blocking member 21, protrusions such as claws 36 are required, and foreign matter such as food contained in the washing water may adhere to this part, but by wrapping the weight member 35 inside, the Such attachment does not occur.

In addition, in order to increase the weight of the closing member 21, the closing member 21 may be made of a metal molding material. In this case, the specific gravity of the blocking member 21 relative to water becomes large, and the movement of the blocking member 21 when descending becomes more stable due to the increased weight in a small volume. Since the specificity is large, the closing member 21 can be reduced in size, and thus the switching valve 17 can be reduced in size and the entire facility can be reduced in size.

In addition, as other methods having the same effect as when the plugging member 21 is made of a metal molding material, there are methods of making the plugging member 21 from a resin material to which metal pieces are added, and methods of making it from ceramics.

Because the counterweight member 35 is located on the surface of the inlet 19 side of the water passage 18 of the disc 26 constituting the blocking member 21, it has the effect of making the operation of the blocking member 21 stable. Since it is easy to process, if the blocking member 21 is made of a resin molding material and the counterweight member 35 is made of a sheet metal material, the free fall movement caused by gravity will exhibit stable motion by placing the heavy part on the lower side. .

In addition, since it is difficult to make the weight member 35 in contact with the opening surface 30 of the outlets 20a to 20d while maintaining high watertightness, by disposing the weight member 35 on the side of the inlet 19 in the water passage portion 18 of the disk 26, On the surface, it is easy to realize a structure that is easy to maintain watertightness.

In addition, although the blocking member 21 rises due to hydraulic power, generally speaking, since the water delivery capacity of the cleaning pump 8 is very large, the blocking member 21 strongly contacts the opening surfaces 30 constituting the outlets 20a-20d, that is, collides. Therefore, if the weight member 35 is used in this collision portion, the collision sound will be heard louder. However, by disposing the weight member 35 on the surface of the disk 26 on the side of the inlet 19 in the water passage portion 18, it is possible to prevent the rattling sound generated when the weight member 35 comes into contact with the opening surface 30.

The overall operation in the above configuration will be described below. The tableware is put into the tableware frame 10 and put into the cleaning tank 4, once the operation starts, the water supply valve 3 is just opened. Then, water is supplied to the washing tank 4 through the water supply path 1 . The supplied water is stored in the water storage part 5 in the washing tank 4. After the water level sensor 6 detects that the water level has reached a predetermined level, the water supply valve 3 is closed to complete the water supply, and the washing pump 8 is driven.

Like this, circulate according to such path: the water stored in the water storage part 5 is pressurized by the washing pump 8, sprays to the tableware in the tableware frame 10 from the cleaning nozzles 14-16 through the switching valve 17, and then returns to the water storage part 5. At this time, the washing pump 8 operates intermittently. For example, the operation is repeated by running for 25 seconds and then stopping for 5 seconds. Utilize the operation of this intermittent cleaning pump 8, constitute the blocking member 21 of the switching valve 17, due to being intermittently subjected to hydraulic force, in addition to the influence of gravity, it rises and falls, that is, reciprocates.

This reciprocating motion is converted into rotational motion by the cam mechanisms 22 and 23 constituting the switching valve 17 . The closing member 21 is rotated by a predetermined angle in one reciprocation, and the water sent from the washing pump 8 is sequentially led out to the ports 20a to 20d. In this way, water is sprayed sequentially from the cleaning nozzles 14-16. For example, if the cleaning operation is performed for 30 minutes in total, if the cleaning pump 8 is repeatedly operated for 25 seconds and then stopped for 5 seconds, the switching valve 17 will perform switching operations 60 times. Since there are four outlets 20a-d of the switching valve 17, as described above 60 times, by setting the number of times of switching operations of the switching valve 17 to a multiple of 4 (generally a multiple of the number of outlets), the water can be evenly distributed. It is sprayed onto all the tableware placed in the tableware frame 10 li.

While the water is circulated by the washing pump 8, it is heated by a heater to become warm water. After the cleaning is finished, the water in the cleaning tank 4 is drained by the drain pump 11, and the cleaning process ends.

By adopting the present embodiment as described above, only one cleaning pump can be used. Since the switching valve 17 with a simple structure makes the water spray out from the cleaning nozzles 14-16 in sequence, neither the cost nor the equipment will be increased. The whole becomes larger. In addition, since the switching valve 17 does not require a special drive source, and only operates the cleaning pump 8 intermittently, it is possible to achieve low cost and high reliability and durability.

In addition, the noise during operation is mainly due to the sound when the water sprayed from the cleaning nozzles 14-16 hits the cleaning tank 4, and the small amount of water sprayed at the same time is quieter. Compared with the case of spraying water at the same time, since the amount of water sprayed simultaneously from each spray nozzle can be reduced sequentially, noise can be reduced.

In addition, for water saving, since the amount of circulating water is small, the amount of water stored in the water outlet 5 can be reduced to save water. Adopting this embodiment, compared with spraying water from all cleaning nozzles at the same time, because it is from Each spray nozzle sprays water sequentially so that the amount of circulating water can be reduced, thereby saving water.

In addition, according to this embodiment, the amount of circulating water is reduced, the water supply capacity of the washing pump 8 can be reduced, and the cost and miniaturization of the washing pump 8 can be realized, so the overall equipment can be miniaturized.

Claims (24)

1. dish cleaning machine is characterized in that having:

Scavenging pump;

A plurality of washer jets; And

Be configured in the transfer valve midway in the water route that links described scavenging pump and described a plurality of washer jets,

The water that described transfer valve possesses inlet that the water that will have been pressurizeed by described scavenging pump imports, will import exports to a plurality of outlets, the described inlet of connection and the water flowing portion of described a plurality of outlets and the plug members that stops up described a plurality of outlets successively of described a plurality of washer jets

Described plug members is back and forth movement between described inlet and described outlet.

2. dish cleaning machine according to claim 1 is characterized in that: plug members rotation intermittently and stop up several in described a plurality of outlet successively in described water flowing portion exports to described a plurality of washer jet successively with the water of this importing.

3. dish cleaning machine according to claim 1, it is characterized in that: this back and forth movement of described plug members is to realize by waterpower that water had of having been pressurizeed by described scavenging pump and the external force alternating action opposite with this waterpower direction, and this external force mainly is gravity.

4. dish cleaning machine according to claim 3 is characterized in that: constitute weight member on described plug members.

5. dish cleaning machine according to claim 4 is characterized in that: be formed in the described inlet side that described weight member on the described plug members is configured in described water flowing portion.

6. dish cleaning machine according to claim 4 is characterized in that: described weight member is corrected to the center of gravity of described plug members the pivot of described plug members.

7. dish cleaning machine according to claim 4 is characterized in that: described weight member is the shape that the center of gravity of described plug members is corrected to the pivot of described plug members.

8. dish cleaning machine according to claim 4 is characterized in that: described weight member is a metal system, and described plug members constitutes by described weight member being wrapped in inner phenol resin molding material.

9. dish cleaning machine according to claim 1 is characterized in that: described plug members is made of the metal forming material.

10. dish cleaning machine according to claim 1 is characterized in that: the waterpower of the water that described plug members utilization has been pressurizeed by described scavenging pump is stopped up the several exits in described a plurality of outlet.

11. dish cleaning machine according to claim 1 is characterized in that: described plug members by the described scavenging pump of intermittent working and between entrance and exit back and forth movement.

12. dish cleaning machine according to claim 1 is characterized in that: described plug members possesses the cam mechanism that rotates predetermined angular with this back and forth movement interlock to a direction.

13. dish cleaning machine according to claim 12 is characterized in that: described cam mechanism is made of a plurality of sliding surface that links to each other on same circumference.

14. dish cleaning machine according to claim 13 is characterized in that: by the center that forms with these sliding surfaces is that the axial screw face forms described a plurality of sliding surface.

15. dish cleaning machine according to claim 12 is characterized in that: the described cam mechanism that constitutes on described plug members is configured in described outlet side.

16. dish cleaning machine according to claim 15 is characterized in that: described cam mechanism and described plug members are to the past road motion interlock of described outlet one side shifting and rotate this predetermined angular to a direction.

17. dish cleaning machine according to claim 12 is characterized in that: the described cam mechanism that constitutes on described plug members is configured in described inlet side and described outlet one side two sides.

18. dish cleaning machine according to claim 17 is characterized in that: the past road of described cam mechanism and this back and forth movement rotates this predetermined angular with returning each motion interlock on road to a direction.

19. dish cleaning machine according to claim 12 is characterized in that: the guiding parts that also possesses this back and forth movement of the described plug members of guiding.

20. dish cleaning machine according to claim 19 is characterized in that: described guiding parts is by being constituted with the axle that is located at the hole tabling on the described plug members.

21. dish cleaning machine according to claim 20 is characterized in that: the section shape that constitutes the described axle of described guiding parts is a cross shape.

22. dish cleaning machine according to claim 1 is characterized in that: in described plug members periphery and described water flowing portion, have predetermined gap between week.

23. dish cleaning machine according to claim 1 is characterized in that: described inlet towards with the direction opening of this back and forth movement approximate vertical of described plug members.

24. dish cleaning machine according to claim 1 is characterized in that: described inlet is towards the direction opening of generation with the unidirectional eddy current of direction of rotation of described plug members.

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