JP5909652B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher that supplies tap water into a washing tank by a water supply valve or a water supply hose to wash dishes stored in the washing tank.

  Conventionally, this type of dishwasher is provided with a water supply valve in the vicinity of a water supply pipe of a water supply hose drawn from the dishwasher main body and connected to the water supply pipe, and the dishwasher existing from the dishwasher main body to the water supply pipe The components necessary for installation are housed in a water-conducting tubular body having a watertight structure and one end opened in the dishwasher body (see, for example, Patent Document 1).

  The structure of the dishwasher disclosed in Patent Document 1 will be described with reference to FIG. The dishwasher is provided with the water supply valve 4 in the vicinity of the water supply pipe 18 of the water supply hose 26 that is pulled out from the dishwasher main body 1 and connected to the water supply pipe 18, and exists from the dishwasher main body 1 to the water supply pipe 18. The dishwasher and the components necessary for its installation are housed in a water conduit 25 having a watertight structure and one end opened in the dishwasher main body 1.

  With the above configuration, since the water supply valve 4 is disposed in the vicinity of the water supply pipe 18 of the water supply hose 26 drawn out from the dishwasher body 1, water flow and water pressure are not applied downstream from the water supply valve 4 even during water supply, Even if there is a leak location, the leak is minimized. Further, since the components existing between the dishwasher main body 1 and the water supply pipe 18 including the water supply hose 26 are accommodated in the water guide tubular body 25, even if water leaks, It is stored in the tubular body 25 or flows into the dishwasher main body 1 from the end of the water guiding tubular body 25 opened in the dishwasher main body 1.

JP 2007-202875 A

  However, the conventional dishwasher disclosed in Patent Document 1 contains all the components existing between the dishwasher main body 1 and the water supply pipe 18 including the water supply hose 26 in the water guide tubular body 25. Therefore, even if water leakage occurs, the leaked water is stored in the water conduit tubular body 25 or flows into the dishwasher main body 1 from the end opened in the dishwasher main body 1 of the water conduit tubular body 25. However, it is possible to simultaneously include an irregular shape such as the water supply valve 4 and the water supply hose 26 in the watertight structure together with the reliable sealing performance of the water guide tubular body 25 as the inclusion member until the appearance of the appearance is improved. If consideration is given, the shape and the seal structure become complicated, and the manufacturing cost is increased. In addition, since there is the water supply valve 4 in the vicinity of the water supply pipe 18, there is a problem that construction may be difficult depending on the position of the water supply pipe 18.

  This invention solves the said conventional subject, and it aims at providing the dishwasher excellent in construction with the reliable sealing performance of a water conveyance tubular body.

In order to achieve the above object, a dishwasher according to the present invention includes a washing tank for storing and washing an object to be washed such as tableware, a dishwasher main body provided with the washing tank, and water supply to the washing tank. A water supply valve to be controlled, a water leakage detection means for detecting water leakage disposed in the dishwasher body, a water supply hose connecting the water supply valve and a water supply pipe, a base connected to the water supply hose, and the water supply A pipe connecting member that is screwed into a water stop cock connected to the pipe and connects the base, and a cover hose that includes the water supply hose, and one end of the cover hose is watertightly fitted to the base. The other end is opened in the dishwasher main body, a cover hose connection member is formed at one end of the cover hose, and the cover hose connection member is connected to the connection member hard portion and the connection member hard portion. Soft part In formed integrally, water tightness and the cover hose connecting member and the ferrule is characterized by formed by said connecting member flexible portion and the cap are in close contact.

According to the above configuration, the water supply valve is arranged in the dishwasher body, and the hose connection member (base) for connecting the water supply hose and the cover hose covering the water supply hose is arranged near the water supply pipe of the water supply hose connected to the water supply valve. Therefore, the water supply hose and the caulking part that connects the water supply hose and the base are accommodated in the cover hose, so even if water leakage occurs in the water supply line, the leaked water is stored in the cover hose. Without leaking to the outside, if the amount of water leakage exceeds a specified amount, it is guided to the cover hose and flows down into the dishwasher main body, and can be detected by the water leakage detection means. Moreover, it is possible to prevent water leakage from the connecting portion of the cover hose to the outside with a simple configuration with few components.

  When the dishwasher is installed at a predetermined place, installation work for connecting pipes for water supply and drainage is indispensable, and the dishwasher of the present invention is leaked due to damage to the pipe line in the installation work. Even in the case of occurrence of water leakage, leakage of water can be prevented from leaking outside. Moreover, since the occurrence of water leakage can be detected promptly, it is possible to take measures before the damage caused by water leakage increases. Moreover, the connection part with water supply piping can be reduced in size, and workability can also be improved.

Side sectional view which shows the structure of the dishwasher which concerns on Embodiment 1 of this invention. The front view of the connection principal part of the water supply hose of the dishwasher which concerns on Embodiment 1 of this invention Sectional drawing of the connection principal part of the water supply hose of the dishwasher which concerns on Embodiment 1 of this invention Sectional drawing of the connection principal part of the water supply hose of the dishwasher which concerns on Embodiment 2 of this invention Side sectional view showing the configuration of a dishwasher according to the prior art

The first invention includes a washing tub for storing and washing objects such as tableware, a dishwasher main body provided with the washing tub, a water supply valve for controlling water supply to the washing tub, and the dishwasher A water leakage detecting means for detecting water leakage disposed in the body, a water supply hose connecting the water supply valve and the water supply pipe, a base connected to the water supply hose, and a water stopcock connected to the water supply pipe A pipe connecting member that is screwed to connect the base and a cover hose including the water supply hose, one end of the cover hose is watertightly fitted to the base, and the other end is in the dishwasher body. A cover hose connection member is formed at one end of the cover hose, and the cover hose connection member is integrally formed of a connection member hard portion and a connection member soft portion that covers the connection member hard portion. The cover hose Watertightness between the connection member and the ferrule is constituted dishwasher by said connecting member flexible portion and the cap are in close contact.

Thereby, even when water leakage occurs in the water supply pipeline, the leaked water can be prevented from being stored in the cover hose and leaking outside. Moreover, since the occurrence of water leakage can be detected promptly, it is possible to take measures before the damage caused by water leakage increases. Moreover, the connection part with water supply piping can be reduced in size, and workability can also be improved. Moreover, it is possible to prevent water leakage from the connecting portion of the cover hose to the outside with a simple configuration with few components.

  According to a second invention, in the first invention described above, since the water supply valve is disposed in the dishwasher body, the water supply valve is not in the vicinity of the water supply pipe. It is possible to improve the degree of construction freedom and workability. In addition, even when water leaks from the vicinity of the water supply valve, it is not necessary for the water leak to reach the region where the cover hose is pulled out, and the water leak detection means can immediately detect the water leak.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description. Further, the present invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 shows a configuration of a dishwasher according to Embodiment 1 of the present invention, which is configured as a built-in type dishwasher installed under a kitchen counter or the like. In addition, the code | symbol shown in a figure attaches | subjects the same code | symbol to the component which is common in the structure of a prior art.

  In FIG. 1, a dishwasher main body 1 is provided with a washing tub 2 in a housing 5, and a front surface of the dishwasher body 1 is configured to be freely opened and closed by a door 11. When the door 11 is opened, the tableware basket 10 disposed in the washing tub 2 can be pulled out forward, an object to be cleaned 9 such as tableware is placed on the tableware basket 10, and the tableware basket 10 is pushed into the washing tub 2. When the door 11 is closed, the object 9 can be cleaned.

  A water supply hose 3 provided at one end with a water supply valve 4 provided in the dishwasher main body 1 and communicating with the inside of the washing tub 2 and a drainage hose 13 connected at one end to a drainage pump 12 are connected to the outside from the rear surface of the housing 5. The other end of the water supply hose 3 is connected to a water supply pipe 18 such as a water pipe, and the drainage hose 13 is connected to a drainage pipe 19 at the other end.

  As shown in FIGS. 1 and 3, the connection between the water supply hose 3 and the water supply pipe 18 is performed by connecting the pipe connection member 16 connected to the tip of the base 22 that is watertightly fixed to the tip of the water supply hose 3 with a caulking portion 27. It is made by using and connecting to the stop cock 17 provided in the water supply piping 18. The water supply valve 4 is electrically connected to the dishwasher main body 1 by electric wiring (not shown), and is opened and closed by control means provided in the dishwasher main body 1.

  The dishwasher is installed by a contractor, and the pipe connection of the water supply hose 3 and the drainage hose 13 drawn out from the back of the housing 5 and the electrical connection of the power cord and grounding wire are connected to the wall or floor of the installation site. After connecting to the pipe line or outlet, the dishwasher main body 1 is fixed at a predetermined installation location such as under the kitchen counter to complete the installation.

  When the operation start operation is performed from the operation panel provided in front of the installed dishwasher, the water supply valve 4 is opened and the water or hot water supplied from the water supply pipe 18 is the stop cock 17, the water supply hose 3, and the water supply valve 4 Water is supplied into the cleaning tank 2 through When the supplied water or hot water is stored in a predetermined amount at the bottom of the cleaning tank 2, the water supply valve 4 is closed, and the stored water or hot water is heated to an appropriate temperature by the heater 8 and a detergent is mixed into the cleaning water. To the object 9 to be cleaned.

The cleaning water is supplied to the cleaning nozzle 7 by a cleaning pump (not shown), and the cleaning water sprayed from the rotating cleaning nozzle 7 is evenly sprayed on the article 9 to be cleaned placed on the tableware basket 10 so that the dirt is washed away and the cleaning tank is washed. 2 so that the object to be cleaned 9 is cleaned by repeating the circulation of the cleaning water. The polluted water generated by the cleaning is discharged from the drain hose 13 to the drain pipe 19 when the drain pump 12 is started. Thereafter, the water supply valve 4 is opened, and rinsing is performed using the water introduced into the cleaning tank 2 from the water supply hose 3, thereby completing the cleaning of the object 9 to be cleaned.

  FIG. 2 is a front view showing an appearance of a main connection part between the water supply hose 3 and the water supply pipe 18, and FIG. 3 is a cross-sectional view of the main connection part. A cover hose 14 that covers a water supply hose 3 (not shown) is press-fitted onto the outer periphery of a cover hose connecting member 24 formed in a hollow cylindrical shape, and is fixed in position by a hose band 20. Since the water stop cock 17 is provided at the end of the water supply pipe 18, when the pipe connection member 16 is screwed into the screw port of the water stop cock 17, the base 22 is stopped by the pipe connection member 16. Since the seal member 23 is compressed to the 17 side, the water stopper 17 and the base 22 are connected to each other in a watertight structure. With this connection structure, a water supply pipe line from the water supply pipe 18 to the cleaning tank 2 through the water supply hose 3 and the water supply valve 4 is formed.

  The work of connecting the pipe connecting member 16 connected to the end of the water supply hose 3 to the water supply pipe 18 is performed in the installation work of the dishwasher, but the work is left to the construction contractor. During this construction, there is no occurrence of water leakage due to inadequate tightening of the pipe connecting member 16 and insufficient pipe connection or damage to the water supply hose 3. In this configuration, a cover hose 14 including the water supply hose 3 is provided so that the leaked water is not leaked to the outside even if there is such a problem. As will be described later, the cover hose 14 houses the water hose 3 from the outlet portion of the water supply hose 3 to the cover hose connecting member 24 in a watertight structure, and one end is fixed to the back surface of the housing 5 and is inside the dishwasher main body 1. Is open.

  In order to facilitate the installation work of the dishwasher, the water supply hose 3 and the cover hose 14 are required to have flexibility. Therefore, it is preferable that the water supply hose 3 and the cover hose 14 are configured as a double hose body with a flexible material. The end of the cover hose 14 on the side of the water supply pipe 18 is brought into close contact with the cover hose connection member 24 to form a watertight structure. With this configuration, even if water leakage occurs due to damage to the water supply hose 3 or the like, the leaked water is stopped in the cover hose 14 and prevented from leaking outside.

  As shown in FIG. 3, in Embodiment 1 of the present invention, the outer peripheral surface of the base 22 and the inner peripheral surface of the cover hose connecting member 24 are formed in a watertight structure by an O-ring 21 attached to the base 22. . Thereby, it can prevent that water leaks outside from the connection part of the cover hose 14. FIG.

  As described above, in the dishwasher of the present invention, when water leakage occurs in the water supply hose 3 by configuring the cover hose 14 and the base 22 including the water supply hose 3 in a watertight structure, the leaked water is covered by the cover hose 14. Accumulated inside. When the amount of water leakage reaches an amount that reaches the part of the cover hose 14 drawn from the housing 5, the leaked water flows down into the housing 5. If a water leakage sensor (water leakage detection means) 15 is provided at the inner bottom of the housing 5, water leakage is detected by the water leakage sensor 15, so that the user can take measures such as inspection and repair based on the water leakage detection. .

  Moreover, since the water supply valve 4 is not in the vicinity of the water supply pipe 18, the connection space is not restricted and the installation workability can be improved.

  Further, since the water supply valve 4 is disposed in the dishwasher main body 1, when water leaks from the vicinity of the water supply valve 4, the water leak does not reach the drawing portion from the housing 5 of the cover hose 14, but immediately. Since water leakage can be detected by the water leakage sensor 15, the user can immediately take measures such as inspection and repair based on the water leakage detection.

(Embodiment 2)
FIG. 4 is a cross-sectional view of a main connection part between the water supply hose 3 and the water supply pipe 18 of the dishwasher according to Embodiment 2 of the present invention. In the present embodiment, the cover hose connection member 24 provided at the end of the cover hose 14 on the water supply pipe 18 side is connected to the inner and outer peripheries of the connection member hard portion 24a and the connection member hard portion 24a formed in a hollow cylindrical shape. The connecting member soft portion 24b is covered and pressed into the base 22 and the cover hose 14 to form a watertight structure. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals and description thereof is omitted.

  With the above configuration, a watertight structure between the outer peripheral surface of the base 22 and the inner peripheral surface of the cover hose connecting member 24 can be formed without attaching an O-ring to the base 22. Even if water leaks due to this, the leaked water is retained in the cover hose 14 and can be prevented from leaking outside.

  As described above, in the dishwasher of the present invention, when water leakage occurs in the water supply hose 3 by configuring the cover hose 14 and the base 22 including the water supply hose 3 in a watertight structure, the leaked water is covered by the cover hose 14. Accumulated inside. When the amount of water leakage reaches an amount that reaches the part of the cover hose 14 drawn from the housing 5, the leaked water flows down into the housing 5. If a water leakage sensor (water leakage detection means) 15 is provided at the inner bottom of the housing 5, water leakage is detected by the water leakage sensor 15, so that the user can take measures such as inspection and repair based on the water leakage detection. .

  In each of the embodiments described above, the water leakage countermeasures for the water supply pipe line with respect to the dishwasher main body 1 have been described. However, it cannot be said that there is no water leakage in the drainage pipe line. Can be provided. In the case of a drainage pipe, simply connecting the drainage hose 13 drawn out from the housing 5 to the drainage pipe 19 makes it easy to implement by forming a double hose with the drainage hose 13 fitted in the cover hose 14. can do.

  Moreover, the cover hose 14 can also be comprised so that both the water supply hose 3 and the drainage hose 13 may be accommodated, and it becomes possible to respond to the water leakage from any water conduit.

  As described above, the present invention prevents water from leaking outside by accommodating the water leakage in the cover hose when water leaks from the water supply hose drawn out from the device body, and the water supply valve is in the vicinity of the water supply pipe. Therefore, it can be applied not only to dishwashers but also to washing machines with similar water supply and drainage pipe connection configurations. It is.

DESCRIPTION OF SYMBOLS 1 Dishwasher main body 2 Washing tank 3 Water supply hose 4 Water supply valve 5 Housing 7 Washing nozzle 8 Heater 9 Object to be washed 10 Tableware basket 11 Door 12 Drain pump 13 Drain hose 14 Cover hose 15 Water leak sensor (water leak detection means)
16 Pipe connection member 17 Stop cock 18 Water supply pipe 19 Drainage pipe 20 Hose band 21 O-ring 22 Base 23 Seal member 24 Cover hose connection member 24a Connection member hard part 24b Connection member soft part 27 Caulking part

Claims (2)

A washing tub for storing and washing objects such as tableware, a dishwasher main body provided with the washing tub, a water supply valve for controlling water supply to the washing tub, and a dishwasher main body A water leakage detecting means for detecting water leakage, a water supply hose for connecting the water supply valve and the water supply pipe, a base connected to the water supply hose, and a base plug screwed into a water stop cock connected to the water supply pipe A pipe connecting member for connecting the water hose, a cover hose including the water supply hose, one end of the cover hose is watertightly fitted to the base, and the other end is opened in the dishwasher body ,
A cover hose connection member is formed at one end of the cover hose, and the cover hose connection member is integrally formed of a connection member hard part and a connection member soft part covering the connection member hard part, and the cover hose connection The watertightness between the member and the base is a dishwasher configured by the connection member soft portion and the base being in close contact with each other . The dishwasher according to claim 1, wherein the water supply valve is disposed in the dishwasher body .