JP2007185412A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher allowing a user to easily recognize a water leak from a hose or a connection part outside a body of the dishwasher. <P>SOLUTION: The dishwasher comprises a washing tub 2 disposed inside a casing 1a for washing dishes 9, the water hose 3 with one end communicating with the washing tub 2 and the other end connected to a piping part 14 outside the body 1, and a hose member 16 which covers the water hose 3 and through which water can flow. One end of the hose member 16 is connected to the casing 1a and the other end on the piping part 14 side is sealed, so that water leaking into the hose member 16 is guided into the casing 1a. If water leaks from the water hose 3 outside the body 1 or from the connection part 14a with the piping part 14, the leaking water is returned into the casing 1a through the hose member 16, and therefore, the water leak is securely detected if a water leak detecting means (not illustrated) for detecting a water leak is disposed inside the body 1. On the other hand, when the water leak detecting means is not disposed, the stored leaking water flows out of the front of the body 1, and therefore, the user can easily recognize the water leak. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a dishwasher for cleaning by spraying cleaning water onto an object to be cleaned such as tableware.

  Conventionally, this type of dishwasher has been configured as shown in FIG. Hereinafter, the configuration will be described.

  As shown in FIG. 4, the dishwasher main body 1 is provided with a washing tank 2 inside, and water or hot water is supplied into the washing tank 2 from outside the machine through a water supply hose 3 by a water supply valve 4. ing. A cleaning pump 6 driven by a motor 5 is attached to the bottom of the cleaning tank 2, and the cleaning water is circulated inside the cleaning tank 2 by the cleaning pump 6. That is, in this circulation, the cleaning water is sucked into the cleaning pump 6 from the bottom of the cleaning tank 2 and is supplied from the cleaning pump 6 to the cleaning nozzle 7 rotatably provided at the inner bottom of the cleaning tank 2. , And after the tableware 9 is washed, the process returns to the bottom of the washing tank 2 again.

  Between the cleaning nozzle 7 and the bottom of the cleaning tank 2, a heater 8 for heating the cleaning water is provided. A table basket 10 is provided above the cleaning nozzle 7 so that the tableware 9 can be arranged in an orderly manner and cleaning water is effectively sprayed onto the tableware 9. A door 11 that can be freely opened and closed is attached to the front surface of the cleaning tank 2.

  The tableware basket 10 is provided with a plurality of moving rollers 10 a so that the upper part of the opened door 11 can be pulled out to the outside of the front surface of the dishwasher body 1. Reference numeral 12 denotes a drainage pump which discharges washing water through the drainage hose 13 to the outside of the machine.

  Here, the arrangement configuration of the water supply hose 3 and the drainage hose 13 will be described. Since the discharge outlet of the water supply needs to have a certain height or more with respect to the overflow surface of the product, the position of the water supply valve 4 and the water supply hose 3 The connecting part needs to be arranged above the fuselage. The drain hose 13 also needs to be raised above the surface of the washing water so that the washing water inside the washing tub 2 does not come out of the machine, so the upper end thereof is also arranged above the machine body. As described above, a part of each of the water supply hose 3 and the drainage hose 13 is always arranged above the machine body (see, for example, Patent Document 1).

  Here, in the conventional dishwasher, each of the water supply hose 3 and the drainage hose 13 is connected to the connection part 14a of the pipe part 14 such as a water supply facility or a drainage pipe outside the main body 1. Moreover, the height of the connection part 14a is various and is often connected at a position lower than the hose outlet 1b of the housing 1a. For example, inside the housing 1a, the water supply hose 3 and the drainage hose 13 can be lowered and the hose outlet 1b can be lowered. However, especially in the built-in type, the case is connected at a position lower than the dishwasher body 1. Therefore, the connecting portion 14a of the piping portion 14 is often lower than the hose outlet 1b of the housing 1a.

Dishwasher housing in case water is leaked from each part due to failure of water level detection means (not shown) for controlling water supply or inconvenience of hose connection inside dishwasher Some have a water leakage detection means 15 at the bottom of 1a.
Japanese Patent Laid-Open No. 2003-210378

  However, in such a conventional dishwasher configuration, the water supply hose 3, the drainage hose 13, and the connection portion 14 a outside the dishwasher main body 1 are located lower than the hose outlet 1 b, so that Even if water leakage occurs, the water leakage does not return to the inside of the housing 1a. Therefore, even if the leak detection means 15 is provided at the bottom of the housing 1a, there has been a problem that it is not possible to detect the leak occurring outside the main body 1.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a highly safe dishwasher that can easily detect not only water leakage inside the dishwasher body but also water leakage outside. .

  In order to solve the above-described conventional problems, a dishwasher of the present invention includes a housing, a washing tank disposed in the housing for washing dishes, one end communicating with the washing tank, and the other end outside the main body. A hose connected to the piping part, and a hose member that is water-permeable and covers the hose and has an end on the main body side connected to the housing, and an end on the piping part side sealed. Water leakage into the hose member is guided to the inside of the housing. Even if water leaks from a hose such as a water supply hose or a drainage hose outside the main body or a connection part between the hose and the piping part, Since water passes through the inside of the hose member and returns to the inside of the housing, if there is a water leakage detection means that detects water leakage inside the main body, it is possible to provide a highly safe dishwasher that can detect almost all water leakage. it can. Even when there is no water leakage detection means, the water leaked inside the cabinet comes out from the front of the dishwasher body, so that even if there is a leak behind the body that is difficult for the user to see, Can be noticed and prevent major damage caused by water leakage.

  In the dishwasher of the present invention, even if water leakage occurs in a hose such as a water supply hose or a drainage hose outside the main body or a connection part between the hose and the piping part, the water passes through the inside of the hose member, Therefore, if there is a water leakage detection means inside the main body, the water leakage will be detected by it, and even if there is no water leakage detection means, it will leak out from the front of the main body, so the user can easily It is possible to prevent leaks from being noticed and important.

  According to a first aspect of the present invention, there is provided a housing, a washing tub disposed in the housing for washing dishes, a hose having one end communicating with the washing tub and the other end connected to a piping section outside the main body, And a hose member that covers the hose and is connected to the casing at the end on the main body side and sealed at the end on the piping section side, and leaks water into the hose member. Even if water leaks from a hose such as a water supply hose or a drainage hose outside the main unit or a connection part between the hose and the piping part, the water passes through the inside of the hose member and is inside the housing. Therefore, if there is a water leakage detection means for detecting water leakage inside the main body, it is possible to provide a highly safe dishwasher that can detect almost all water leakage. Even when there is no water leakage detection means, the water leaked inside the cabinet comes out from the front of the dishwasher body, so that even if there is a leak behind the body that is difficult for the user to see, Can be noticed and prevent major damage caused by water leakage.

  In the second invention, in particular, a water leakage detection means for detecting water leakage is arranged inside the housing of the first invention. Even if water leaks from a hose outside the main body or a connection part between the hose and the piping part. , It passes through the inside of the hose member, returns to the inside of the housing, and is reliably detected by the water leakage detection means inside the main body, so a highly safe dishwasher that can detect almost all water leakage Can be provided.

  In the third invention, in particular, the sealed portion of the pipe portion side end of the hose member of the first or second invention is extended from the connecting portion between the pipe portion and the hose to the pipe portion side. However, it is necessary to leave the final configuration to the builder's responsibility, but since it is possible to detect water leakage that occurs between the hose and the connection part of the piping part, it is more convenient for the user. .

  In the fourth aspect of the invention, in particular, the sealed part of the pipe part side end part of the hose member of the first or second invention is positioned at the connection part between the pipe part and the hose, and water leakage outside the main body is caused. The range that can be detected can be guaranteed as a form of shipping as a product, and when water leakage occurs outside the main unit, it is clarified whether the cause is on the main unit side or the construction method at the time of installation work it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view of the dishwasher according to the first embodiment of the present invention, and FIG. 2 is an enlarged view of a main part of the dishwasher. The same parts as those in the conventional example are denoted by the same reference numerals, and the description thereof is omitted.

  1 and 2, the dishwasher according to the present embodiment is provided with a water supply hose (hose) 3 outside the housing 1a from a water supply valve 4 arranged in the dishwasher main body 1 (hereinafter referred to as "main body 1"). The hose member 16 is disposed outside the water supply hose 3 so as to cover the water supply hose 3. The end of the hose member 16 on the main body 1 side is inserted into a connection member 17 fixed to the housing 1a so as to communicate the space inside the hose member 16 with the inside of the housing 1a. Further, the portion of the hose member 16 opposite to the main body 1, that is, the end portion on the piping portion 14 side is closed with a sealing member 16 a including the connection portion 14 a with the external piping portion (water supply pipe) 14, The piping part 14 side has a sealed structure.

  Here, the structure of the connection part 14a with the water supply hose 3 and the outer piping part 14 is demonstrated. The water supply hose 3 includes a hose 3a, a connection joint 3b, a caulking member 3c for preventing the hose 3 and the connection joint 3b from coming off, a connection portion (nut) 3d to the piping portion 14, and a connection of the piping portion 14. It is composed of a packing 3e for sealing with the portion 14a.

  When the mounting portion 3d is tightened to the screw 14b of the connecting portion 14a of the piping portion 14, the hose 3a and the connecting portion 14a are securely connected by the packing 3e, and water leakage from the connecting portion 14a is prevented. Yes.

  About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  As described above, the hose member 16 covers all the pipe-related connection parts for water supply from the housing 1 a to the pipe part 14. Further, since a sealed structure is provided at the distal end of the external piping portion 14 side, when water leakage occurs inside the hose member 16, the water leakage is reliably accumulated inside the hose member 16. For example, when water leaks due to breakage of the hose 3a itself, leakage due to poor caulking of the connection joint 3b, or poor sealing of the packing 3e due to a mistake in water supply work, the water leaks inside the hose member 16. In this case, even when the hose member 16 is higher on the housing 1a side, if the amount of water leakage increases, the hose member 16 becomes full, and water leaks from the inside of the connecting member 17 into the housing 1a. Water leaks at the bottom of the housing 1a. This water leakage can be detected by the water leakage detection means 15. In this case, it is possible to notify the user of the abnormality and notify the user of the occurrence of water leakage and take appropriate measures.

  Therefore, even if water leaks outside the main body 1, the user can be surely notified of the water leak state, so that the user can avoid the situation of leaking for a considerable time without noticing. be able to.

  As described above, according to the present embodiment, since not only the inside of the main body 1 but also the water leakage outside the main body 1 can be detected, a dishwasher with higher safety against water leakage can be provided.

  Moreover, in this Embodiment, since the water supply valve 4 is arrange | positioned inside the housing | casing 1a, it can implement this invention, as an electrical component (not shown), with a structure substantially equivalent to the past. it can. Therefore, the same reliability as in the conventional case can be secured in the wiring and the like without changing the space. Even if the water supply valve 4 is arranged in the vicinity of the connecting portion 14a of the external piping section 14 and the piping on the primary side of the water supply is made as short as possible, if a sealed structure is provided in those sections, There is no problem in carrying out the invention, and the same effect can be obtained.

  In the above embodiment, the connection relating to the water supply has been described as an example, but it goes without saying that the same operation, action, and effect can be obtained when the hose member 16 is disposed outside the drainage hose 13. Yes. Further, although not particularly illustrated, the water supply hose 3 and the drainage hose 13 may be disposed close to each other and both may be covered by a single hose member 16.

  Further, even in the case of a dishwasher not provided with the water leakage detection means 15, the water leaking inside the housing 1a leaks out from the front of the main body 1 and thus occurs behind the main body 1 where it is difficult for the user to notice. The user can quickly notice the leaked water and can surely prevent the damage caused by the leaked water.

(Embodiment 2)
FIG. 3 is an enlarged cross-sectional view of a main part of the dishwasher according to the second embodiment of the present invention. The same parts as those in the conventional example are denoted by the same reference numerals, and the description thereof is omitted.

  In the first embodiment, the hose member 16 covers up to the external piping section 14, but the present embodiment is a hose member 18 that covers the water supply hose 3 as shown in FIG. And a sealing member 18a provided at the tip of the hose member 18 is arranged on the mounting portion 3d so as to have a sealing effect with the mounting member 3d. . If a hexagonal portion 3f for fastening to the screw 14b and a columnar portion 3g for tightly contacting the sealing member 18a are provided in the mounting portion 3d, respectively, the configuration is simple. The connection between the water supply hose 3 and the piping part 14 and the sealing at the end of the hose member 18 can be reliably performed.

  About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  Since the action of the hose member 18 at the time of water leakage is exactly the same as that of the hose member 16 in the first embodiment, the description thereof is omitted. However, in the present embodiment, unlike the first embodiment, it is not possible to detect water leakage that occurs at the connecting portion 14a with the external piping portion 14. Therefore, the first embodiment is preferable, but this part needs to be sure to set the sealed part after the piping work, and the connecting part of the piping part 14 used when installing the dishwasher. There are various shapes of 14a (for example, the shape of a water stop member), and it may be difficult to guarantee the dishwasher as a manufacturing and supply side. Therefore, according to this embodiment, it is very effective in clarifying the guarantee at the time of shipment from the manufacturer.

  Therefore, since it is possible to reliably notify the user of the water leakage state within a range that can be guaranteed as the main body 1 against leakage from the outside of the main body 1, the user continues to leak for a considerable time without noticing. Can be avoided. In addition, since the effect | action etc. in other piping etc. are the same as that of Embodiment 1, description is abbreviate | omitted.

  As described above, according to the present embodiment, not only the inside of the main body 1 but also the water leakage outside the main body 1 can be detected, so that it is possible to provide a dishwasher with higher safety against water leakage.

  As described above, the dishwasher according to the present invention can easily detect water leakage from a hose such as a water supply hose and a drainage hose outside the main body, and a connection part of the piping part, and is therefore highly safe. The present invention is not limited to this, and can be applied to various devices that use water or liquid, such as a washing machine.

The longitudinal cross-sectional view of the dishwasher in Embodiment 1 of this invention Cross section of the main part of the dishwasher Sectional drawing of the principal part of the dishwasher in Embodiment 2 of this invention Vertical section of a conventional dishwasher

Explanation of symbols

1a Case 2 Washing tank 3 Water supply hose (hose)
9 Tableware 13 Drainage hose
14 Piping section 14a Connection section 15 Water leakage detection means 16 Hose member

Claims (4)

A casing, a cleaning tank disposed in the casing for cleaning dishes, a hose having one end communicating with the cleaning tank and the other end connected to a piping section outside the main body, and capable of passing water and covering the hose And a hose member having an end on the main body side connected to the housing and an end on the piping portion side sealed, and guiding water leakage into the hose member to the inside of the housing. dishwasher. The dishwasher according to claim 1, wherein a water leakage detection means for detecting water leakage is disposed inside the housing. The dishwasher according to claim 1 or 2, wherein a sealed portion at a pipe portion side end portion of the hose member is extended from the connection portion between the pipe portion and the hose to the pipe portion side. The dishwasher according to claim 1 or 2, wherein a sealed portion of the end portion of the hose member on the side of the pipe portion is located at a connection portion between the pipe portion and the hose.