JP2009273543A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe dishwasher preventing water leakage from a dishwasher body. <P>SOLUTION: The dishwasher includes a solenoid water supply valve 15 controlling water supply to a washing tank 2 and arranged outside of the dishwasher body 19, a water supply hose 12 connecting the solenoid water supply valve 15 with a hose connecter 21 fixed to the back face 19a of the dishwasher body, an inside water supply hose 22 one end of which is connected to the water supply hose 12 and the other end of which is connected to the washing tank 2, a detecting means 23 for detecting water leakage, a collar 24 covering the water supply hose 12 and of which one end is connected to the solenoid water supply valve 15 and of which the other end is pressedly put into the inner face of a water guide tubular body 17 released inside of the hose connecter 21, and a guide 25 pressedly put in the outer periphery of the water guide tubular body 17, the dish washer is constituted such that a support section 24a connecting with the water supply hose 12 and having an opening 24b is arranged inside of the collar 24, a water guide section 25a protruding to the washing tank 2 side is arranged in the guide 25, and the bottom face 25b of the water guide section 25a is lower than the upper fringe 25c of the guide 25. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a dishwasher that supplies tap water into a washing tank using an electromagnetic water supply valve or a water supply hose to wash dishes set in the washing tank.

  In this type of conventional dishwasher, as a means for supplying water from the water supply pipe into the washing tub, a water supply hose is connected to the electromagnetic water supply valve fixed to the dishwasher main body, and the water supply hose side end of the water supply hose is one-touch. There is one in which a coupler-like joint is attached, a water supply pump can be attached, and a control signal connection part for sending a control signal to the water supply pump is provided in the dishwasher body (for example, see Patent Document 1).

  Further, as another conventional dishwasher, a water supply hose connected to a water supply pipe drawn from the dishwasher main body and a water supply valve in the vicinity of the water supply pipe of the water supply hose of the drainage hose connected to the drainage pipe are arranged. In addition, the dishwasher existing at least from the dishwasher main body on the side of the water supply hose to the water supply pipe and the components necessary for the installation are housed in a water-conducting tubular body having a watertight structure and one end opened in the dishwasher main body. (For example, refer to Patent Document 2).

  FIG. 9 is a cross-sectional view of the dishwasher described in Patent Document 1.

  In FIG. 9, the dishwasher 1 has a washing tub 2 provided therein, and water is supplied into the washing tub 2 by an electromagnetic water supply valve 4 fixed to the dishwasher main body 3. A water supply hose 5 is connected to the electromagnetic water supply valve 4, and a one-touch coupler-like joint 7 is attached to the water supply pipe 6 side end of the water supply hose 5 so that a water supply pump 8 can be attached. A control signal is sent to the water supply pump 8. A control signal connection 9 for sending is provided in the dishwasher body 3.

  With the above configuration, the water supply pump 8 is connected to the joint 7 attached to the tip of the water supply hose 5, and the power supply cord 9 a of the water supply hose 5 is connected to the control signal connection portion 9, so that it is drawn into the wash tank 2. When the dishes 10 are put in and the washing tub 2 is placed in the dishwasher main body 3 and the washing is started, the electromagnetic water supply valve 4 and the water supply pump 8 operate to supply water from the water supply pipe 6 into the washing tub 2. The tableware 10 can be washed.

  Next, another conventional dishwasher disclosed in Patent Document 2 will be described with reference to FIG.

  An electromagnetic water supply valve 15 is arranged in the vicinity of the water supply pipe 6 of the water supply hose 12 of the water supply hose 12 connected to the water supply pipe 6 drawn out from the dishwasher main body 11 of the dishwasher and the drainage pipe 13. In addition, the dishwasher 16 existing at least from the dishwasher body 11 on the water supply hose 12 side to the water supply pipe 6 and the components necessary for the installation are opened in the dishwasher body 11 with a watertight structure. It is housed in the water guide tubular body 17.

With the above configuration, the electromagnetic water supply valve 15 is disposed in the vicinity of the water supply pipe 6 of the water supply hose 12 drawn out from the dishwasher main body 11, so that water flow and water pressure are applied to the downstream side of the electromagnetic water supply valve 15 even during water supply. However, even if there is a water leakage point, the water leakage is minimized. Furthermore, since the water supply hose 12 and the components existing between the dishwasher main body 11 and the water supply pipe 6 including the water supply hose 12 are housed in the water guiding tubular body 17, the water leaked even when water leakage occurred. The water is stored in the water conduit tubular body 17 or flows into the dishwasher main body 11 from the end of the water conduit tubular body 17 opened in the dishwasher main body 11.
JP 2006-110126 A JP 2007-202875 A

  However, in the configuration of the conventional dishwasher disclosed in Patent Document 1, the water supply pump 8 is attached to or detached from the joint 7 by the user or the installer, and the water supply hose 5 and the joint are removed. 7 has a problem that water leaks if the connection part 7 is incomplete or the water supply hose 5 is damaged. Moreover, since there is no means for detecting when a water leak occurs, there is a problem that the water leak damage extends to the floor of the kitchen.

  Further, in the conventional dishwasher disclosed in Patent Document 2, at least the water supply hose 12 and the components existing between the dishwasher main body 11 and the water supply pipe 6 are accommodated in the water conduit 17. Therefore, even when water leakage occurs, the leaked water is stored in the water conduit tubular body 17 or flows into the dishwasher main body 11 from the end of the water conduit tubular body 17 opened in the dishwasher main body 11. However, it does not disclose a means for surely leaking water overflowing from the open end portion 17a of the water guide tubular body 17 into the dishwasher body 11, and depending on the configuration, the open end portion is not disclosed. There was a problem that the water leaked from the portion 17a flowed out of the dishwasher main body 11 through the water guide tubular body surface 17b.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a safe dishwasher that prevents water leakage from a water supply hose portion.

  It is another object of the present invention to provide a safe dishwasher by preventing leakage of water from the dishwasher body through the water guide tubular body and the like from the open end of the waterguide tubular body on the side of the dishwasher body.

In order to achieve the above object, the dishwasher of the present invention includes a washing tub for storing and washing dishes, a dishwasher body having the washing tub installed therein, and a water supply to the washing tub to control the dishwasher. An electromagnetic water supply valve disposed outside the main body, a water supply hose for watertightly connecting the electromagnetic water supply valve and a hose connector fixed to the back of the dishwasher main body, and one end of the water supply hose and watertight in the hose connector An internal water supply hose with the other end connected to the washing tank, a detection means for detecting water leakage, and the water supply hose, and one end connected to the electromagnetic water supply valve in a watertight manner and the other end to the hose A water conduit tubular body released into the connector, a collar press-fitted into the inner surface of the water conduit tubular body on the hose connector side, and a guide press-fitted into the outer periphery of the water conduit tubular body, and inside the collar The water supply hose A support part having an opening that contacts and is provided, and the guide is provided with a water guide part that protrudes toward the washing tank, and the bottom surface of the water guide part is configured to be lower than the upper edge of the guide. Since the electromagnetic water supply valve is arranged near the water supply pipe of the water supply hose drawn out from the hose connector fixed to the back of the main body, water flow and water pressure are not applied downstream from the electromagnetic water supply valve except during water supply. Furthermore, since the water supply hose from the hose connector fixed to the back of the dishwasher main body to the electromagnetic water supply valve is housed in the water conduit, water leakage including causes due to inadequate work in the installation work of the dishwasher occurred. Even in such a case, the leaked water is stopped in the water conduit, and when the amount of water leakage exceeds a predetermined amount, it reaches the collar that is guided by the water conduit and press-fitted to the hose connector side end, and the collar support opening. Will pass through the guide and then will flow down into the dishwasher body through the guide. Since the collar support portion is in contact with the water supply hose, the collar is press-fitted into the inner surface of the water guide tubular body, and the guide is press-fitted into the outer periphery of the water guide tubular body, so even if the water guide tubular body is thin, the water guide tubular body Since water pressure is applied, it is supported by a thick water supply hose and collar, and it comes in close contact with the guide, and water overflowing from the water conduit will flow down from the water conduit into the dishwasher body, It does not flow down to the outside of the dishwasher, and the water leaked into the dishwasher body can notify the user of the leak through the detection means, and can prevent damage caused by leaks that cannot be seen. It becomes.

  When installing a dishwasher in place, installation work to connect water supply and drainage pipes and wiring is indispensable. If the water supply hose is damaged during the installation work, it will be installed. Even if abnormal stress is applied to the water supply hose due to inadequate construction, etc., and water leaks from this part during use, the water leakage remains in the water guiding tubular body, or from the water guiding tubular body, the guide and the water guiding part formed in the guide It can be surely poured into the dishwasher body, and the detection means can detect the water leak early and notify the user of the water leak, thereby preventing the damage caused by the water leak occurring in an invisible place.

  According to a first aspect of the present invention, there is provided a washing tank for storing and washing dishes, a dishwasher main body provided with the washing tank, an electromagnetic wave disposed outside the dishwasher main body for controlling water supply to the washing tank. A water supply valve, a water supply hose for watertightly connecting the electromagnetic water supply valve and a hose connector fixed to the back of the dishwasher main body, one end is connected to the water supply hose in the hose connector and the other end is watertight An internal water supply hose connected to the cleaning tank, a detection means for detecting water leakage, and the water supply hose covering the water supply hose, one end of which is connected to the electromagnetic water supply valve in a watertight manner and the other end is released into the hose connector. A tubular body, a collar press-fitted into the inner surface of the water conduit tubular body on the hose connector side, and a guide press-fitted into the outer periphery of the water conduit tubular body, and in contact with the water supply hose inside the collar Support with opening The guide is provided with a water guide portion that protrudes toward the washing tub, and the bottom surface of the water guide portion is configured to be lower than the upper edge of the guide. Since the electromagnetic water supply valve is arranged near the water supply pipe of the water supply hose drawn out from the device, water flow and water pressure are not applied downstream from the electromagnetic water supply valve except during water supply. Furthermore, since the water supply hose from the hose connector fixed to the back of the dishwasher main body to the electromagnetic water supply valve is housed in the water conduit, water leakage including causes due to inadequate work in the installation work of the dishwasher occurred. Even in such a case, the leaked water is stopped in the water conduit, and when the amount of water leakage exceeds a predetermined amount, it reaches the collar that is guided by the water conduit and press-fitted to the hose connector side end, and the collar support opening. Will pass through the guide and then will flow down into the dishwasher body through the guide. Since the collar support portion is in contact with the water supply hose, the collar is press-fitted into the inner surface of the water guide tubular body, and the guide is press-fitted into the outer periphery of the water guide tubular body, so even if the water guide tubular body is thin, the water guide tubular body Since water pressure is applied, it is supported by a thick water supply hose and collar, and it comes in close contact with the guide, and water overflowing from the water conduit will flow down from the water conduit into the dishwasher body, It does not flow down to the outside of the dishwasher, and the water leaked into the dishwasher body can notify the user of the leak through the detection means, and can prevent damage caused by leaks that cannot be seen. It becomes.

  In the second invention, in particular, a hose band is provided at the position of the support portion formed in the collar on the outer periphery of the guide of the first invention, and a part of the hose band is accommodated in the hose band mounting portion of the hose connector. A groove is formed, and the hose band is held without deviating from the predetermined position of the hose connector so that the water supply hose, collar, water guide tubular body and guide can be brought into close contact with each other, so that water leaks from the gap between the water guide tubular body and the guide. It is possible to reliably prevent the water from flowing down the dishwasher through the water conduit.

In the third invention, in particular, the collar of the first or second invention is formed with a convex portion a that fits the peak formed in the water guide tubular body, and the guide is formed in the trough portion formed in the water guide tubular body. And the convex portion b of the guide can be prevented from being displaced by fitting the convex portion a of the collar with the peak portion of the water guide tubular body, and the convex portion b of the guide is a valley of the water guide tubular body. Since the guide can be prevented from slipping by fitting with the part, water leakage overflowing from the water guide tubular body is prevented from flowing out of the dishwasher body through the water guide tubular body through the gap between the collar, the water guide tubular body and the guide. be able to.

  In the fourth invention, in particular, the area of the opening of the support portion provided in the collar according to any one of the first to third inventions is made larger than the hole area of the water supply hose. Even if all of the water from the hose overflows into the conduit, it will flow down into the dishwasher body without being resisted by the opening, and water leakage will be pressurized in the conduit, and the guide and conduit It can be prevented from flowing into the dishwasher body through the gaps in the body.

  In the fifth invention, in particular, the water guide portion of the guide according to any one of the first to fourth embodiments is inclined in the direction of the detecting means, and the water leaked into the water guide tubular body reaches the guide, and the guide water guide portion. The detection means can detect water leaks quickly, can notify the user of water leaks earlier, and can prevent damage caused by water leaks that cannot be seen. It becomes.

  In the sixth invention, in particular, the cross-sectional area of the water guiding portion formed in the guide according to any one of the first to fifth inventions is made larger than the hole area of the water supply hose. Even if all of the amount of water overflows into the conduit, it will flow into the dishwasher body without being clogged by the guide conduit, and can be prevented from flowing out of the dishwasher body. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a cross-sectional view of a dishwasher according to a first embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of a main part of the dishwasher.

  1 and 2, the washing tub 2 is disposed in the dishwasher body 19 of the dishwasher 18 in the present embodiment so as to be freely opened and closed, and the dish basket 20 is disposed in the washing tub 2. The tableware 10 can be placed on the tableware basket 20 and cleaned.

  In order to wash the dishes 10, an electromagnetic water supply valve 15 that controls water supply to the washing tub 2 is disposed outside the dishwasher main body 19 and connected to the water supply pipe 6. A water supply hose 12 is connected to the downstream side of the electromagnetic water supply valve 15 in a watertight manner. The water supply hose 12 is further connected to the internal water supply hose 22 in a watertight manner in a hose connector 21 fixed to the back surface 19a of the dishwasher body. Yes.

  The downstream side of the internal water supply hose 22 is connected to the cleaning tank 2 in a watertight manner. Detection means 23 for detecting water leakage is fixed to the bottom surface 19b of the dishwasher body. One end of the water conduit 17 covering the water supply hose 12 is connected to the electromagnetic water supply valve 4 in a watertight manner, and the other end is opened in the hose connector 21. A collar 24 press-fitted into the inner surface of the water guide tubular body 17 and a guide 25 press-fitted into the outer periphery of the water guide tubular body 17 are provided.

  Moreover, the support part 24a which contacts the water supply hose 12 is provided inside the collar 24, and the opening 24b is provided in the support part 24a. Further, the guide 25 is provided with a water guide portion 25 a protruding toward the cleaning tank 2, and the bottom surface 25 b of the water guide portion is formed at a position lower than the upper edge 25 c of the guide 25.

  According to the above configuration, the electromagnetic water supply valve 15 is disposed in the vicinity of the water supply pipe 6 of the water supply hose 12 drawn to the outside from the hose connector 21 fixed to the dishwasher main body back surface 19a. No water flow or water pressure is applied downstream from the electromagnetic water supply valve 15.

  Furthermore, since the water supply hose 12 from the hose connector 21 fixed to the dishwasher main body back surface 19a to the electromagnetic water supply valve 4 is accommodated in the water guide tubular body 17, it is accompanied by incomplete work in the installation work of the dishwasher 18. Even when water leakage including the cause occurs, the leaked water is stopped in the water guiding tubular body 17, and if the amount of water leakage exceeds a predetermined amount, it is guided to the water guiding tubular body 17 and the end on the hose connector 21 side. It reaches the collar 24 press-fitted into the section, passes through the opening 24b of the collar support section 24a, reaches the water guide section 25a formed on the guide 25 from the guide 25, and the bottom face 25b of the water guide section 25a is the upper edge of the guide 25 Since it is lower than 25c, the water leakage flows down into the dishwasher main body 19 from the water guide portion 25a.

  Further, since the support portion 24a of the collar 24 is in contact with the water supply hose 12, the collar 24 is press-fitted into the inner surface of the water guide tubular body 17, and the guide 25 is press-fitted into the outer periphery of the water guide tubular body 17. Even if the water guide tubular body 17 is thin, the water guide tubular body 17 is supported by the water supply hose 12 and the collar 24 and comes into close contact with the guide 25, and the water leaking from the water guide tubular body 17 is caused by the water guide portion 25a. It flows down into the dishwasher main body 19 and does not flow out of the dishwasher main body 19 through the water guiding tubular body 17, and the water leaked into the dishwasher main body 19 is leaked to the user by the detection means 23. It is possible to prevent the damage caused by water leakage that occurs in an invisible place.

(Embodiment 2)
FIG. 3 is a front view showing the attachment state of the hose band of the dishwasher according to the second embodiment of the present invention, and FIG. 4 is a cross-sectional view showing the relationship between the hose band and the hose connector. In addition, about the same part as the dishwasher in the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  3 and 4, the hose band 26 is attached to the position of the support portion 24 a formed on the collar 24 on the outer periphery 25 d of the guide 25, and further, the hose band 26 is formed in the groove 21 a formed on the hose connector 21. Thus, the hose band 26 is regulated at a predetermined position by the groove 21a, and the guide 25, the water guide tubular body 17, the collar 24, and the water supply hose 12 can be brought into close contact with each other. Even if water leakage occurs from the water supply hose 12, it is possible to prevent damage due to water leakage in an invisible place without flowing down from the dishwasher body 19 due to a gap between the water guide tubular body 17 and the guide 25. Become.

(Embodiment 3)
FIG. 5 is a cross-sectional view showing an attached state of the collar and guide of the dishwasher in the third embodiment of the present invention. In addition, about the same part as the dishwasher in the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In FIG. 5, the collar 24 of the dishwasher according to the present embodiment is formed with a convex portion A <b> 24 c that fits the peak portion 17 a formed on the water guide tubular body 17, and the guide 25 is formed on the water guide tubular body 17. Since the convex part B25e which fits into the trough part 17b is formed and the other structure is the same as the dishwasher in the said embodiment, the description is abbreviate | omitted.

As described above, according to the present embodiment, the convex portion A24c of the collar 24 can be prevented from being fitted to the peak portion 17a of the water guide tubular body 17, and the collar 24 can be prevented from shifting, and the convex portion B25e of the guide 25 can be prevented. Since the guide 25 can be prevented from being displaced by fitting with the valley portion 17 b of the water guide tubular body 17, water leakage overflowing from the water guide tubular body 17 is caused by a gap between the collar 24, the water guide tubular body 17 and the guide 25, etc. Therefore, it is possible to reliably prevent the liquid from flowing out of the dishwasher main body 19 through 17.

(Embodiment 4)
FIG. 6 is a cross-sectional view showing the color opening shape of the dishwasher according to the fourth embodiment of the present invention. In addition, about the same part as the dishwasher in the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 6, the dishwasher in the present embodiment is such that the area A of the opening 24b formed in the support portion 24a provided inside the collar 24 is larger than the hole area B of the water supply hose 12. Since the structure of is the same as the dishwasher in the said embodiment, the description is abbreviate | omitted.

  Since the present embodiment is configured as described above, even if the water supply hose 12 is damaged and all of the amount of water from the water supply hose 12 overflows into the water guide tubular body 17, water leakage is caused by the opening 24b. Since resistance is not generated and pressurized in the water guide tubular body 17, it can be prevented from flowing out of the dishwasher body 19 through the gap between the guide 25 and the water guide tubular body 17.

(Embodiment 5)
FIG. 7 is a plan view for explaining the positional relationship between the water guiding section provided in the guide of the dishwasher and the detecting means in the fifth embodiment of the present invention. In addition, about the same part as the dishwasher in the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 7, the dishwasher in the present embodiment is formed by inclining the water guide portion 25a formed in the guide 25 in the direction of the detection means 23, and other configurations are the same as those in the above embodiment. It is.

  With the above configuration, the water leaking into the water guide tubular body 17 reaches the guide 25 and flows down from the water guide portion 25a of the guide 25 toward the detection means 23, so that the detection means 23 detects the water leak quickly. It is possible to notify the user of the water leak earlier, and it is possible to prevent damage caused by the water leak occurring in an invisible place.

(Embodiment 6)
FIG. 8A is a plan view showing a water guide provided in the guide of the dishwasher according to the sixth embodiment of the present invention, and FIG. 8B is a cross-sectional view showing the water guide of the guide. In addition, about the same part as the dishwasher in the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  8A and 8B, in the dishwasher in the present embodiment, the cross-sectional area C of the water guide portion 25a formed in the guide 25 is set to be larger than the hole area B of the water supply hose 12 (shown in FIG. 6). Thus, other configurations are the same as those of the above embodiment.

  With the above configuration, even if the water supply hose 12 is damaged and the entire amount of water from the water supply hose 12 overflows into the water guide tubular body 17, the water guide portion 25 a of the guide 25 does not receive resistance and the dishwasher body 19 As a result, it can be prevented from flowing out of the dishwasher main body 19, and damage caused by water leakage occurring in an invisible place can be prevented.

As described above, the dishwasher according to the present invention can take measures against water leakage due to incomplete installation work. Dishwashers that require installation work during installation may cause water leakage even if the dishwasher is functioning properly if there is a lack of work in the installation work that involves connecting water supply pipes. Including the components included and housed in the water conduit, and can be securely stored in the dishwasher body from the guide press-fitted into the water conduit, minimizing damage caused by water leakage A dishwasher can be provided.

Sectional drawing which showed the structure of the dishwasher in the 1st Embodiment of this invention An enlarged sectional view of the main part of the dishwasher The front view which shows the attachment state of the hose band of the dishwasher in the 2nd Embodiment of this invention Sectional drawing which shows the relationship between the hose band and a hose connector Sectional drawing which shows the attachment state of the color and guide of a dishwasher in the 3rd Embodiment of this invention Sectional drawing which shows the opening shape of the color of the dishwasher in the 4th Embodiment of this invention The top view which showed the positional relationship of the water guide provided in the guide of the dishwasher in the 5th Embodiment of this invention, and a detection means (A) Top view which shows the water guide provided in the guide of the dishwasher in the 6th Embodiment of this invention (B) Sectional drawing which shows the water guide of the same guide Cross-sectional view of a conventional dishwasher Cross section of another conventional dishwasher

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Washing tank 10 Tableware 12 Water supply hose 15 Electromagnetic water supply valve 17 Water conveyance tubular body 17a Mountain part 17b Valley part 18 Dishwasher 19 Dishwasher main body 19a Dishwasher main body back surface 19b Dishwasher main body bottom 21 Hose connector 21a Groove 22 Internal water supply hose 23 Detection means 24 Color 24a Support part 24b Opening 25 Guide 25a Water guide part 25b Bottom face 25c Upper edge 25d Outer part 26 Hose band A Area of the opening 24b B Hole area of the water supply hose C Cross-sectional area of the water supply part

Claims (6)

A washing tub for storing and washing dishes, a dishwasher main body provided with the washing tub, an electromagnetic water supply valve disposed outside the dishwasher main body for controlling water supply to the washing tub, and the electromagnetic A water supply hose for watertightly connecting a water supply valve and a hose connector fixed to the back of the dishwasher main body, an interior in which one end is connected watertight to the water supply hose in the hose connector and the other end is connected to the washing tank A water supply hose, detection means for detecting water leakage, a water conduit tubular body that covers the water supply hose, one end of which is watertightly connected to the electromagnetic water supply valve and the other end is released into the hose connector, and the water guide A support portion having a collar press-fitted on the inner surface of the tubular body on the hose connector side and a guide press-fitted on the outer periphery of the water guide tubular body, and being in contact with the water supply hose and having an opening inside the collar. Provided The id provided water conduit projecting into the cleaning tank side, dishwasher bottom of the water conduit is configured to be lower than the upper edge of the guide. The dishwasher according to claim 1, wherein a hose band is provided at a position of a support portion formed in a collar on an outer periphery of the guide, and a groove in which a part of the hose band is accommodated is formed in a hose band attachment portion of the hose connector. The convex part a fitted to the peak formed in the water guide tubular body is formed on the collar, and the convex part b fitted to the valley formed on the water guide tubular body is formed on the guide. The dishwasher described. The dishwasher according to any one of claims 1 to 3, wherein the area of the opening of the support portion provided in the collar is configured to be larger than the hole area of the water supply hose. The dishwasher according to any one of claims 1 to 4, wherein the water guide portion of the guide is inclined toward the detection means. The dishwasher according to any one of claims 1 to 5, wherein a cross-sectional area of the water guide portion formed in the guide is larger than a hole area of the water supply hose.

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