JPH0515913Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention can spray clean water evenly onto the tableware to rinse the tableware evenly, especially the center, and has excellent workability and ease of assembly, and is easy to maintain. The purpose of the present invention is to provide a simple fresh water injection device.

In this specification, the term "cleaning liquid" refers to a liquid for washing tableware, and the term "clean water" refers to a liquid for rinsing off the cleaning liquid adhering to the tableware, each consisting of cold water or hot water.

(Prior Art) Conventionally, a fresh water injection device 51 as shown in FIG. 13 has been employed.

The fresh water injection device 51 according to the first disclosed technology includes a shaft body 52 and a rotating body 53 that rotates horizontally around the shaft body 52.

The shaft body 52 has round holes 52a, 52a through which fresh water flows out.
It consists of an axial circular tube 54 having a hole therein and a distal end cap 55 screwed onto the distal end of the axial circular tube 54.

The rotating body 53 has a rotor 56 through which the shaft circular tube 54 is inserted.
and a clean water pipe 57 which is screwed onto the rotor 56 and whose tip is sealed.

A required nozzle 58 is bored in the fresh water pipe 57,
The rotating body 53 rotates due to the reaction force of the fresh water jetted from the nozzle 58.

Moreover, the fresh water injection device 6 is a second disclosed technique disclosed in Japanese Utility Model Publication No. 54-14704 and has a round hole 62 in the tip cap 66 as shown in FIG.
1 is disclosed.

Furthermore, a third disclosed technique disclosed in Japanese Utility Model Application Publication No. 59-51561 is a rotating body 73 as shown in FIG.
Fresh water injection device 71 with a guide plate 77 provided at the base end of
is disclosed.

(Problems to be Solved by the Invention) This conventional fresh water injection device of the first disclosure having such a configuration has two fresh water pipes 57, 57 screwed to the rotor 56 as shown in FIG. Since the structure is such that a nozzle cannot be provided near the axis of the shaft body 52, clean water is not sprayed in the direction of the axis of the shaft body 52, making it impossible to uniformly rinse the dishes.

In the second disclosed technique shown in FIG. 14, since the flow of fresh water applies strong pressure to the tip cap 66,
The force of the jet from the round hole 62 becomes stronger, and the rotating body 6
3, the amount of water flowing into the rotating body 6 decreases.
The reaction force caused by the rotation of the rotating body 63 and the jet pressure from the tip of the rotary body 63 are also weakened, so that clean water is not evenly applied to the dishes, and the tip cap 66
Clean water does not splash directly above the center of the container.

Further, in the third disclosed technique shown in FIG.
At the same time as the rotating body 73 rotates, the guide plate 77 directs the injection from the base of the rotating body 73 to the center of rotation.

This technique uses a guide plate 77 to change the direction of the fresh water jet by more than 90 degrees, so the guide plate 77 attenuates the fresh water injection pressure and has the disadvantage that the fresh water does not fly far and strongly. Since the fuel is injected from above, the pressure on the rotating body 73 is attenuated, and the rotational force and the injection pressure at the tip of the rotating body 73 are reduced.

Furthermore, in the first disclosed technique, the rotor 56 has two female screws 56a, 56a, and the clean water 57 has two male screws 5.
7a, 57a have to be screwed, which is difficult to work with, and also requires a process of rotating the circular fresh water pipes 57, 57 and screwing them onto the rotor 56 with a pipe wrench, etc., making assembly difficult. There was a problem that it was troublesome and therefore maintenance was also troublesome.

(Means for Solving the Problem) This invention was made to solve the above-mentioned drawbacks, and it is a dish basket that is horizontally attached to a substantially inverted bowl that communicates with a cylinder into which cleaning liquid is supplied, and that rotates while carrying a dish basket. A cleaning pipe equipped with a cleaning nozzle that sprays cleaning liquid onto the dishes inside the dishwasher, and a fresh water pipe equipped with a fresh water nozzle that is installed on the dish basket side of this washing pipe and sprays clean water onto the dishes inside the dishwasher basket as it rotates, are located above and below, respectively. to 2
In an automatic dishwasher that is installed as a set, the fresh water injection device includes a nipple installed in the substantially inverted bowl body, a circular pipe hanging vertically from the nipple, a shaft body attached to the circular pipe, and this shaft body. It consists of a rotating body that rotates in the horizontal direction as a center, and the shaft body is composed of an axial circular tube in which at least four round holes are bored in a staggered manner, and a tip cap that is screwed onto the tip of this axial circular tube. A fresh water pipe in which a rotating body has a large number of nozzles, both ends are closed, and a round hole is bored in the center, and the axial circular pipe is inserted into the round hole of the fresh water pipe in a state perpendicular to the fresh water pipe. It consists of a rotor that is sandwiched between an insertion tip cap and an axial circular tube, and the rotating body rotates by the reaction force of spraying fresh water from the nozzle of the fresh water pipe, and a nozzle is formed in the center of the tip cap. The above-mentioned problems are solved by providing a fresh water injection device for an automatic dishwasher, which is characterized by:

(Function) At least four round holes are drilled in the axial circular pipe in a staggered pattern, so the strength of the axial circular pipe is maintained while the amount of fresh water flowing into the fresh water pipe increases, and the water is sprayed from the hole in the tip cap. The pressure will be at an appropriate level.

Fresh water is supplied to the nipple disposed inside the approximately inverted bowl body, passes through a circular pipe, an axial circular pipe, and flows into the fresh water pipe from a round hole in the axial circular pipe, and the fresh water pipe is rotated together with the rotor to produce fresh water. It is sprayed from the nozzle and the hole in the tip cap.

(Embodiment) An embodiment of the fresh water injection device for an automatic dishwasher according to this invention will be described in detail below with reference to FIGS. 1 to 12.

The fresh water injection device 1 includes a nipple 18 disposed inside a substantially inverted bowl body 16 of a cleaning liquid injection device to be described later, and a vertical plumb pipe 20 which is a circular pipe and extends vertically from the nipple 18.
It consists of a shaft body 2 and a rotating body 3 that rotates in the horizontal direction around this shaft body 2. (See FIG. 2) The shaft body 2 consists of a circular shaft tube 4 (see FIG. 5) and a tip cap 5 (see FIG. 4).

The rotating body 3 includes a fresh water pipe 6 (see Fig. 7) and a rotor 7.
(See Figure 6).

As shown in Figure 5, the axial circular tube 4 has four round holes 8 bored in a staggered manner, a female screw 4a is screwed inside one end, and a male screw 4b is screwed outside the other end. It has a hexagonal column part 4c.

The reason why the round holes 8 are bored in a staggered pattern is to make the opening of the axial circular pipe 4 large in order to supply fresh water to the fresh water pipe 6 while avoiding attenuation as much as possible.

This is because if the round hole 8 is made larger with two holes instead of a staggered shape, the strength of the shaft circular tube 4 will be extremely weakened at the round hole 8 portion, and in some cases, it may break at this portion.

As shown in FIG. 4, the tip cap 5 has a male screw 5a screwed into the female screw 4a of the cylindrical shaft 4, and a nozzle 5b is bored in the center.
The outer periphery is knurled (not shown).

As shown in FIGS. 7 and 8, the clean water pipe 6 has a round hole 6a in the center of which the axial circular pipe 4 is inserted orthogonally.
is drilled and a large number of nozzles 9 are inserted into the axial circular pipe 4.
The nozzles 9 are drilled symmetrically around the rotating body 3 by the reaction force of spraying clean water from the nozzles 9.
The cap 1 is bored at an angle to the round hole 6a so as to rotate, and female screws 6b, 6b are screwed into both ends, and the cap 1 is inserted into the female screws 6b, 6b, respectively.
0 and 10 (see FIG. 9) are screwed together to close both ends of the fresh water pipe 6.

As shown in FIG. 6, the rotor 7 has a horizontal hole 11 through which the fresh water pipe 6 is inserted horizontally, a vertical hole 12 through which the axial circular tube 4 is vertically inserted, and a hexagonal column of the axial circular tube 4. A counterbore portion 7a is provided, and the entire portion is a substantially regular hexagonal prism. As shown in the second figure, this rotor 7 is sandwiched between an axial circular pipe 4 inserted into a vertical hole 12 and a tip cap 5, and a fresh water pipe 6 and an axial circular pipe 4 inserted perpendicularly to the fresh water pipe 6. is inserted.

The fresh water injection device 1 of this invention having such a configuration is integrally assembled with a cleaning liquid injection device described below on the dish basket side of an automatic dishwasher, and both devices are arranged in two sets above and below in the washing machine.

As shown in FIGS. 1 and 2, the cleaning liquid injection device includes a rectangular tube 13, a grooved circular tube 14 welded to the rectangular tube 13, and a substantially inverted bowl body that fits loosely into the groove 15 of the grooved circular tube 14. 16 and two cleaning tubes 17.

Nipples 18 and 18A that are welded perpendicular to the square tube 13 are inserted into the square tube 13, and a T-shaped tube 19 that is screwed onto the nipples 18 and 18A (not shown) is installed inside the square tube 13. A hat cap 18B (not shown) is screwed onto one end of the nipple 18A (see FIG. 2).

A vertical circular pipe 20 screwed and extending from one end of the T-shaped pipe 19 is inserted into the substantially inverted bowl body 16 in the vertical direction (a second
(see figure), both arms 16a of the substantially inverted bowl body 16,
Cleaning pipes 17, 17 are fitted into 16a, respectively.
It is fixed by screwing a hexagon socket set screw (not shown) into the female screw 17a.

A cleaning nozzle 21 is provided in each of the cleaning pipes 17, 17.
are drilled so that a horizontal force couple is generated by the injection of cleaning liquid (see Fig. 1).

One end of the approximately inverted bowl body 16 is made of Teflon (registered trademark).
A circular tube sheet 22 made of aluminum is disposed, and the male screw 4b of the axial circular tube 4 is screwed onto the female screw 20a of the vertical circular tube 20 and held together with the washer 23.

As shown in FIGS. 10 and 11, the rectangular tube 13 is
Plumbed. A valve mechanism 24 is housed in the lower part of the square tube 13.

As shown in FIGS. 10 to 12, the valve mechanism 24 includes a long bolt 25 inserted into the rectangular tube 13 and a rectangular tube 13.
A fixing nut 26 that fixes the long bolt 25 to the square tube 13, a fixing nut 27 that rotatably fixes the long bolt 25 to the square tube 13, a handle 28 that is fixed to one end of the long bolt 25, and a handle 28 that is fixed to the long bolt 25 and rotates as the handle 25 rotates. The valve 29 is made of a rectangular plate.

This valve mechanism 24 is for arbitrarily adjusting the pressure of the cleaning liquid that is pumped into the upper and lower rectangular tubes 13 by the same pump (not shown). That is, the required pressure of the cleaning liquid to be pumped into the upper and lower rectangular tubes 13 changes depending on the shape of the tableware, and this arrangement is provided to accommodate this change.

In the fresh water injection device of this embodiment having such a configuration, fresh water is supplied into the nipple 18, while cleaning liquid is supplied into the rectangular tube 13.

The cleaning liquid supplied into the rectangular tube 13 is approximately shaped like an inverted bowl 1.
6. The cleaning tube 17 is filled. Pump (not shown)
When activated, a gap 15a is formed between the inverted bowl body 16 and the groove circular pipe 14 due to the pressure of the cleaning liquid, and the cleaning liquid and the cleaning nozzle 21 are injected from the gap 15a. The force causes the washing pipe 17 to rotate around the vertical circular pipe 20, thereby washing the dishes in the dish basket of the automatic dishwasher.

The fresh water supplied into the nipple 18 is transferred to the T-shaped pipe 1.
9, the vertical circular tube 20, the axial circular tube 4, the clean water tube 6, and the tip cap 5 are filled with water. When the pump (not shown) operates, fresh water is injected from the nozzle 9 and nozzle 5b, and the reaction force of the fresh water injected from the nozzle 9 causes a couple centered on the axial circular pipe 4 to cause the fresh water pipe 6 to become an axial circular pipe. It rotates around 4, spraying clean water evenly onto the washed dishes, and as a result, the dishes are evenly rinsed. Further, even in an automatic dishwasher in which the dish basket does not move during washing or rinsing, dishes can be rinsed evenly.

To assemble the fresh water injection device 1, first insert the fresh water pipe 6 into the horizontal hole 11 of the rotor 7 through the round hole 6a of the fresh water pipe 6.
and the vertical hole 12 of the rotor 7 is inserted through the hole, and after inserting the axial circular tube 4 through this hole, the tip cap 5 is inserted.
is screwed onto the axial circular tube 4, and finally the axial circular tube 4 is screwed onto the vertical circular tube 20.

(Effects of the invention) As explained in detail above, the fresh water injection device for an automatic dishwasher according to this invention is installed horizontally in a substantially inverted bowl body communicating with a cylinder into which cleaning liquid is supplied, and rotates to spray dishes in a dishwasher basket. There are two upper and lower sets of a cleaning pipe equipped with a cleaning nozzle that sprays cleaning liquid onto the dishes, and a fresh water pipe equipped with a fresh water nozzle that is installed on the dish basket side of this cleaning pipe and sprays clean water onto the dishes in the dish basket while rotating. In the installed automatic dishwasher, the fresh water injection device includes a nipple disposed in the substantially inverted bowl body, a circular pipe hanging vertically from the nipple, a shaft body attached to the circular pipe, and a shaft body centered on the shaft body. The shaft body consists of a rotary body that rotates in the horizontal direction, and the shaft body consists of an axial circular tube in which at least four round holes are bored in a staggered manner, and a tip cap that is screwed onto the tip of the axial circular tube. , a fresh water pipe in which a rotating body has a large number of nozzles, both ends are closed, and a round hole is bored in the center, and the axial circular pipe is inserted into the round hole of the fresh water pipe in a state perpendicular to the fresh water pipe. It consists of a rotor sandwiched between an insertion tip cap and an axial circular tube, and the rotating body rotates by the reaction force of spraying fresh water from the nozzle of the fresh water pipe, and a nozzle is formed in the center of the tip cap. It produces the following excellent effects.

Since the round holes in the axial circular pipe are formed in a staggered manner, fresh water can be supplied to the fresh water pipe without reducing its jet pressure to the tip of the fresh water pipe, and sufficient reaction force for rotation of the fresh water pipe can be obtained. .

The fresh water pipe is inserted into the horizontal hole of the rotor so that the round hole of the fresh water pipe and the vertical hole of the rotor are transparent, and the axial circular pipe is inserted through this hole, so it is not necessary to insert a female screw into the rotor as in the conventional case. There is no need for space for screw installation, which makes the rotor compact, so the nozzle can be drilled close to the center of the fresh water injection device.The tip cap also has a nozzle, so fresh water can be sprayed evenly. You can spray it on the dishes and rinse them evenly.

Insert the fresh water pipe into the horizontal hole of the rotor so that the round hole of the fresh water pipe and the vertical hole of the rotor are transparent, and after inserting the shaft round pipe into this hole, screw the tip cap onto the shaft round pipe. Since it is integrated, there is no need for the conventional troublesome operation of screwing two fresh water pipes (circular) to the rotor using a tool such as a pipe wrench, making it easy to assemble. Maintenance is also easy.

[Brief explanation of the drawing]

Figures 1 to 12 are diagrams illustrating an embodiment of the fresh water spraying device for an automatic dishwasher according to this invention, and Figure 1 shows a part of the assembled state of the fresh water spraying device and the cleaning liquid spraying device. Omitted side view, 2nd
The figures are a sectional view taken along the line A-A in Fig. 1, Fig. 3 is a side view of the vertical circular tube, Fig. 4 is a side view of the tip cap, and Fig. 5 is a side view of the end cap.
The figure is a side view of the axial circular tube, Figure 6 is a side view of the rotor,
Fig. 7 is a plan view with a part of the fresh water pipe omitted, Fig. 8 is a sectional view taken along line B-B in Fig. 7, Fig. 9 is a plan view of the fresh water injection device, and Fig. 10 is a rectangular tube pipe. FIG. 11 is a side view of the same, and FIG. 12 is a longitudinal sectional view of the valve mechanism. FIG. 13 is a longitudinal sectional view of a conventional fresh water injection device, FIG. 14 is a longitudinal sectional view of a conventional fresh water injection device,
FIG. 15 is a longitudinal sectional view of a conventional fresh water injection device. DESCRIPTION OF SYMBOLS 1... Fresh water injection device, 2... Shaft body, 3... Rotating body, 4... Shaft circular pipe, 5... Tip cap, 5b...
...Nozzle, 6... Fresh water pipe, 6a... Round hole, 7...
Rotor, 8...Round hole, 9...Nozzle, 11...Horizontal hole, 12...Vertical hole.

Claims (1)

[Scope of utility model registration request] A cleaning pipe is provided with a cleaning nozzle that is installed horizontally in a substantially inverted bowl body that communicates with a cylinder into which cleaning liquid is supplied and rotates while spraying cleaning liquid onto the dishes in the dishwasher basket. In an automatic dishwasher in which two upper and lower sets of fresh water pipes each having a fresh water nozzle for spraying fresh water onto dishes in a dish basket are arranged, the fresh water spraying device is disposed within the substantially inverted bowl body. It consists of a nipple, a circular tube hanging vertically from the nipple, a shaft attached to the circular tube, and a rotating body that rotates horizontally around the shaft, and the shaft has at least four round holes arranged in a staggered manner. It consists of a circular axial tube with a hanging shape and a tip cap that is screwed onto the tip of the axial circular tube.A rotating body pierces many nozzles, and both ends are closed and a round hole is bored in the center. The rotating body consists of a fresh water pipe that is made of a fresh water pipe, and a rotor that is sandwiched between the tip cap and the circular shaft pipe through which the shaft circular pipe is inserted into the round hole of the fresh water pipe in a state perpendicular to the fresh water pipe. 1. A fresh water spray device for an automatic dishwasher, which is rotated by the reaction force of spraying fresh water from a nozzle, and has a nozzle formed in the center of a tip cap.