JP5040972B2 - Connector - Google Patents

Description

  The present invention relates to a connector that is used in a device such as a dishwasher and connects a water supply hose to an internal water supply hose in the device.

  A dishwasher is used with a water supply hose and a drainage hose connected to each other. Especially, in a built-in type dishwasher installed in a system kitchen, it is necessary to make the connection between the water supply hose and the drainage hose compact. .

  As a built-in type dishwasher, for example, in a dishwasher 70 disclosed in Patent Document 1 below, as shown in FIG. 6, a water supply hose 74, a water supply valve 75, and a drainage hose are disposed above the back surface 72 of the dishwasher main body 71. 76 is arranged, and has a structure in which water is supplied into the washing chamber from the water supply hose 74 through the water supply valve 75 and drained from the drainage hose 76 to the outside of the machine so that the depth dimension of the dishwasher main body 71 can be effectively used. Therefore, at least one of the water supply hose 74 and the drainage hose 76 is disposed in the groove portion 73 provided on the back surface 72 of the dishwasher main body 71 so that piping is performed from above the back surface 72 of the dishwasher main body 71 through the outside of the back surface 72. The configuration is shown.

  In such a dishwasher 70, since a high water pressure is applied to the water supply hose 74 and a high water pressure is repeatedly applied to the connecting portion between the water supply valve 75 and the water supply hose 74 every time the water supply valve 75 is opened and closed, When this connection part was damaged in use, water leakage sometimes occurred from the damaged part.

  Therefore, the present inventors are that the cause of water leakage at the connection portion of the water supply valve of the dishwasher is that a high water pressure is repeatedly applied to the connection portion between the water supply valve and the water supply hose every time the water supply valve is opened and closed. For this reason, a water supply valve with a built-in flow control valve is placed outside the dishwasher to reduce the water pressure on the secondary water supply hose from the water supply valve to the water supply connection (connector) of the dishwasher. This is proposed in Patent Document 2 below.

  In this dishwasher, as shown in FIG. 7, the connection tool is attached to the side wall (device-side mounting member 83) of the device casing 81 of the dishwasher 80 and connected to the cleaning chamber 82 to supply cleaning water. The internal water supply hose 87 is connected to the water supply hose 84 from the outside of the dishwasher 80, and a water supply valve 85 is provided on the upstream side of the water supply hose 84 to be connected. A water supply hose 84 (secondary side) and an internal water supply hose 87 are connected. Although a high water pressure is applied to the water supply hose 86 (primary side) upstream from the water supply valve 85, the water supply hose 84 (secondary side) downstream of the water supply hose 84 (secondary side) has a flow control valve (not shown) incorporated in the water supply valve 85. The water pressure is adjusted to be lower than the primary side. In addition, the water supply hose 84 has a double structure, and has the structure which covered the outer side of the water supply hose 84a which has original pressure resistance with the protection hose 84b.

As shown in FIG. 8, the connecting tool is provided with an overflow opening 90 f penetrating the trunk wall portion in the trunk wall portion of the water supply hose end fixing portion 90, and the connecting portion (straight pipe portion) of the hose joint 40. When a water leak occurs at the connection portion between the water supply hose 84a or the connection portion between the bent pipe portion 43 and the internal water supply hose 87), the overflow opening 90f and the overflow guide passage 93 (vertical walls 93a, 93b). → Overflow is induced below the vertical wall 93a via the horizontal wall 93c → the inclined wall 93d). A part of the vertical wall 93a is cut off to form a draining portion 93e, and the overflow water guided downward is dropped at the draining portion 93e. And it was comprised so that it could detect that the water leak generate | occur | produced with the overflow sensor 89 arrange | positioned under the drain part 93e inside this apparatus.

Japanese Patent Laid-Open No. 2003-210378 JP 2008-82480 A

  However, also in the dishwasher to which the connector having the configuration as described in Patent Document 2 is attached, the overflow opening 90f is formed in the body wall portion of the water supply hose end fixing portion 90 located outside the protective hose 84b. Therefore, when a water leak occurs at the connection portion of the hose joint 40, the leaked water diffuses between the water supply hose 84a and the protective hose 84b, etc., and the water leak is detected quickly and efficiently. It was difficult to reliably prevent water leakage.

  The present invention is configured to be compactly storable in a device such as a dishwasher, and when incorporated in the device main body, a water leakage from the inner water supply hose and the connecting pipe portion is connected to the outer water supply hose and a cover member that is watertight. By collecting and discharging the collected water from the liquid discharge part of the cover member, the leaked water is surely returned to the inside of the device, and the water leak is detected quickly and efficiently. The object is to provide a connector that reliably prevents this.

  The connection tool according to claim 1 of the present invention is a connection tool to which an end of a water supply hose connected to a main body of a dishwasher or the like is fixed. The water supply hose includes an inner water supply hose and the inner water supply hose. An outer water supply hose that covers the connection pipe, and a connecting pipe part that is inserted into an end of the inner water supply hose, a cover member that fixes the connection pipe part and is watertight with the outer water supply hose, A fixing member for fixing the cover member, and the cover member is formed with a cylindrical portion through which the inner water supply hose passes and a liquid discharge portion for discharging the liquid inside. Thus, water leakage from the inner water supply hose and the connection portion of the inner water supply hose and the connecting pipe portion is collected in the cover member that is watertight with the outer water supply hose, and the collected water is collected from the liquid discharge portion of the cover member. By leaving, back into reliable equipment leakage water, quickly efficiently detects water leak, the water leakage to the outside from the connection portion can be reliably prevented.

  The connector according to claim 2 of the present invention is the connector according to claim 1, wherein the cylindrical portion of the cover member is composed of an upper cylindrical portion and a lower cylindrical portion, and the liquid discharge portion is the upper portion. Protruding from the cylindrical part and inserted into a hole formed in the fixing member, thereby preventing diffusion of water discharged from the liquid discharge part of the cover member, It can be reliably dripped at an installation position.

  The connector according to claim 3 of the present invention is the connector according to claim 2, wherein the outer water supply hose is connected to the lower cylindrical portion, and the liquid discharge portion is disposed above the lower cylindrical portion. As a result, it is possible to suppress the water leaked at the connection part from diffusing between the inner water supply hose and the outer water supply hose, etc., and quickly and efficiently discharge the liquid from the liquid discharge part. It is possible to detect water leakage and reliably prevent water leakage to the outside.

According to a fourth aspect of the present invention, there is provided the connecting device according to any one of the first to third embodiments, wherein the connecting tube portion is connected to the water conduit on the device main body side, and the liquid discharge portion is configured to transfer the liquid inside the device main body. In this way, water leakage from the connecting pipe portion can be collected by the cover member and collected in the device main body, and water leakage to the outside of the device can be reliably prevented. Moreover, the water leak can be detected quickly and efficiently by guiding the water leaking from the connection portion to the overflow detection means provided in the apparatus main body.

  According to a fifth aspect of the present invention, there is provided a connector according to any one of the first to fourth aspects, wherein the attachment portion of the connecting pipe portion is accommodated in the cover member. The water can be quickly and efficiently discharged from the liquid discharge part, and the leaked water can be reliably returned to the equipment to detect the water leak quickly and efficiently. Water leakage can be reliably prevented.

  According to the connection tool of the present invention, it is configured so as to be compactly storable in a device such as a dishwasher, and when incorporated in the device body, water leakage from the connection portion of the inner water supply hose and the inner water supply hose and the connecting pipe portion Is collected in the cover member connected to the outer water supply hose and watertight, and the collected water is discharged from the liquid discharge part of the cover member, so that the leaked water is surely returned to the device, and the water leak is detected quickly and efficiently. Thus, water leakage from the connecting portion to the outside can be surely prevented.

The front view for demonstrating one application example which attached the connector which concerns on this invention to the dishwasher The perspective view for demonstrating the outline | summary of the connection tool which concerns on this invention The perspective view for demonstrating the outline | summary of the connection tool which concerns on this invention Front sectional drawing for demonstrating the structure of the connector which concerns on this invention Side sectional view for explaining the structure of the connector according to the present invention (A) The front view for demonstrating the example which attached the conventional connector to the dishwasher (b) The perspective view seen from the back side of the example Front view for explaining an example in which another conventional connector is attached to the dishwasher Rear view for explaining the structure of another conventional connector

  Hereinafter, Embodiment 1 which concerns on the connection tool of this invention is demonstrated in detail based on figures. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view for explaining one application example in which the connector according to the present invention is attached to a dishwasher, and FIGS. 2 and 3 are perspective views for explaining the outline of the connector according to the present invention. 4 is a front sectional view for explaining the structure of the connector according to the present invention, and FIG. 5 is a side sectional view for explaining the structure of the connector according to the present invention.

  For example, as shown in FIG. 1, the connecting tool 1 is attached to the side wall (device-side mounting member 62) of the dishwasher main body 61 of the dishwasher 60 and is connected to the cleaning chamber 63 to supply cleaning water. 64 and a water supply hose 65 from the outside of the dishwasher 60. In this embodiment, a water supply valve 66 is provided on the upstream side of the water supply hose 65 to be connected. The water supply hose 65 and the water pipe 64 are connected further downstream. A high water pressure is applied to the water supply pipe 68 on the upstream side of the water supply valve 66, but the water supply hose 65 on the downstream side is adjusted to a low water pressure by a flow control valve (not shown) incorporated in the water supply valve 66. In addition, the water supply hose 65 has a double structure, and has the structure which covered the outer side of the inner side water supply hose 65a which has original pressure resistance with the outer side water supply hose 65b.

The connector 1 is also configured to hold the drainage hose 67 in order to temporarily lift the drainage after being used for washing the tableware by the fixing member 2 and discharge it to the outside of the device.

  The connector 1 includes a connecting pipe portion 6 to be inserted into an end of the inner water supply hose 65a, a cover member 3 that fixes the connecting pipe portion 6 and is connected to the outer water supply hose 65b in a watertight manner, and a cover member 3. The fixing member 2 to be fixed is provided.

  The fixing member 2 includes a cover member fixing portion 4 that fixes the cover member 3 that tightly connects the end portion 65c of the outer water supply hose 65b, and an outer water supply that is positioned below the cover member fixing portion 4 and holds the outer water supply hose 65b. The hose holding part 5 is configured, and is integrally formed using a synthetic resin such as a polypropylene resin or a polycarbonate resin.

  Further, the cover member 3 includes a connecting pipe holding portion 7 that houses and holds the connecting pipe portion 6 that connects the inner water supply hose 65a and the water pipe 64 below the upper end 3c of the upper cylindrical main body portion 3a. A liquid discharge portion 8 for discharging the liquid inside the cover member 3 is provided below the connecting tube holding portion 7 so as to protrude laterally from the cylindrical main body portion 3a of the cover member 3, and a hole portion provided in the fixing member 2 is provided. 9 is inserted and fixed.

  The hole 9 of the fixing member 2 is configured to guide the liquid discharged from the liquid discharger 8 to the vicinity of the overflow detection means 69 provided in the dishwasher body 61 by the overflow guide path 10.

  Further, the cover member fixing portion 4 of the fixing member 2 includes a holding portion 11 that supports the connecting tube holding portion 7 of the cover member 3 from below and an upper regulating rib 12 that prevents the connecting tube portion 6 from moving upward. The upper and lower positions of the cover member 3 are restricted.

  The connecting pipe part 6 is for connecting the water pipe 64 and the inner water supply hose 65a. The male pipe part 14 is integrally provided above the connecting pipe mounting plate 13 and the water pipe 64 is connected. The base end portion 15a of the pipe portion 15 is rotatably screwed to the male screw portion 14 by the nut member 17 with the backflow prevention valve 16 mounted between the pipe portion 15 and the connecting pipe attachment. A straight pipe portion 19 to which the inner water supply hose 65 a is connected is integrally provided below the plate 13.

  The cover member 3 is provided with a hollow cylindrical tubular portion 3b at the lower end below the liquid discharge portion 8, the end portion 65c of the outer water supply hose 65b is connected to the outer peripheral portion of the tubular portion 3b, and the hollow portion is disposed inside. The water supply hose 65 a passes through and is connected to the straight pipe portion 19 of the connecting pipe mounting plate 13.

  Further, the cover member 3 has an upper end of the cylindrical main body 3a so that the connecting pipe mounting plate 13 can be accommodated in the cover member 3 in a state where the water pipe 64 and the inner water supply hose 65a are connected by the connecting pipe 6. 3c is set at a position higher than the upper plane 13a of the connecting pipe mounting plate 13.

  Further, the inner dimension of the cylindrical main body 3a at the upper part of the cover member 3 is set larger than the inner diameter of the lower cylindrical part 3b, and the outer dimension of the connecting pipe mounting plate 13 is larger than the inner diameter of the cylindrical part 3b. It is configured.

  The outer water supply hose holding part 5 of the fixing member 2 is suspended from the lower end of the cylindrical part 3b of the cover member 3 to the lower part, and an annular groove 20 formed in the outer water supply hose 65b at the lower end of the annular water groove hose 65b. An engaging semi-annular protrusion 21 is formed.

Assembly of the connector 1 and attachment to the dishwasher 60 are performed according to the following procedure. First, the cover member 3 and the connecting pipe portion 6 to which the water supply hose 65 is connected are assembled to the fixing member 2 so as to be inserted from the side (front side in FIG. 5). Specifically, after the liquid discharge part 8 is inserted into the hole 9 and positioned, the cover member 3 and the connecting pipe part 6 are inserted into the fixing member 2. By this assembly, the cover member 3 and the connecting pipe portion 6 are clamped by the fixing member 2. Further, after attaching the fixing member 2 to the side wall of the dishwasher main body 61, the water pipe 64 is connected to the connecting pipe portion 6.

  Next, the operation and action of the connection tool in the above configuration will be described. When water is supplied to the dishwasher 60, the connection portion between the inner water supply hose 65a and the water supply valve 66 and the connection portion between the inner water supply hose 65a and the connecting pipe portion 6 are described. When water leaks due to disconnection, damage to the inner water supply hose 65a, etc., water is collected inside the outer water supply hose 65b, and water is collected up to the cover member 3 connected to the upper end of the outer water supply hose 65b in a watertight manner. The accumulated water drops from the liquid discharge part 8 provided in the cover member 3 through the hole 9 of the fixing member 2 to prevent the water from diffusing and dripping water to the vicinity of the overflow detection means 69 by the overflow guide path 10. Therefore, the leaked water can be reliably returned to the inside of the apparatus, and can be detected by the overflow detection means 69 promptly, thereby preventing the water from leaking out of the apparatus.

  Moreover, while connecting the outer side water supply hose 65b to the cylindrical part 3b formed in the lower part of the cover member 3, since the liquid discharge part 8 was arrange | positioned above the cylindrical part 3b, the water leaked in the connection part Is suppressed from diffusing between the inner water supply hose 65a and the outer water supply hose 65b, etc., and can be discharged from the liquid discharge part 8 quickly and efficiently, and water leakage can be detected quickly and efficiently. Water leakage can be reliably prevented.

  Further, when the nut member 17 of the connecting pipe portion 6 is loosened and water leaks, the connecting pipe mounting plate 13 is accommodated in the cover member 3, so that water can be recovered without diffusing. Therefore, similarly to the liquid discharge part 8, water can be dripped to the overflow detection means 69, and it can be detected by the overflow detection means 69 promptly, and water can be prevented from leaking outside the apparatus. At this time, there is a high possibility that the water leaked from the periphery of the nut member 17 of the connecting pipe portion 6 travels down the inner wall of the cylindrical main body at the top of the cover member 3. Since the inner dimension of the main body part 3a is set larger than the inner diameter of the lower cylindrical part 3b, the liquid discharge part 8 is not allowed to enter between the inner water supply hose 65a and the outer water supply hose 65b from the cylindrical part 3b. It is easy to guide.

  As described above, the connector according to the present invention collects water leakage from the inner water supply hose and the connection portion of the inner water supply hose and the connecting pipe portion in the cover member that is watertight with the outer water supply hose, and collects the collected water. By discharging the liquid from the liquid discharge part of the cover member, it is possible to reliably return the leaked water into the device, detect water leaks quickly and efficiently, and reliably prevent water leakage from this connection part to the outside. Therefore, it is useful as a connection tool incorporated in equipment such as a dishwasher.

DESCRIPTION OF SYMBOLS 1 Connector 2 Fixing member 3 Cover member 3a Main part (upper cylindrical part)
3b Cylindrical part (lower cylindrical part)
4 Cover member fixing part 5 Outer water supply hose holding part 6 Connecting pipe part 7 Connecting pipe holding part 8 Liquid discharge part 9 Hole part 10 Overflow guide path 13 Connecting pipe mounting plate (attaching part of connecting pipe part)
DESCRIPTION OF SYMBOLS 15 Curved pipe part 16 Backflow prevention valve 19 Straight pipe part 20 Annular groove 21 Semi-annular protruding part 60 Dishwasher 61 Dishwasher main body (equipment main body)
63 Washing room 64 Water pipe 65 Water supply hose 65a Inner water supply hose 65b Outer water supply hose 66 Water supply valve 69 Overflow detection means

Claims (5)

An end of a water supply hose connected to a device body such as a dishwasher, wherein the water supply hose has an inner water supply hose and an outer water supply hose covering the inner water supply hose, and the connection The tool has a connecting pipe portion to be inserted into an end portion of the inner water supply hose, a cover member that fixes the connection pipe portion and is watertight with the outer water supply hose, and a fixing member that fixes the cover member. The cover member is a connector in which a cylindrical portion through which the inner water supply hose passes and a liquid discharge portion for discharging the liquid inside are formed. The cylindrical portion of the cover member includes an upper cylindrical portion and a lower cylindrical portion, and the liquid discharge portion is provided so as to protrude from the upper cylindrical portion, and is inserted into a hole formed in the fixing member. Item 1. The connector according to Item 1. The connector according to claim 2, wherein an outer water supply hose is connected to the lower cylindrical portion, and the liquid discharge portion is disposed above the lower cylindrical portion. The connection tool according to any one of claims 1 to 3, wherein the connecting pipe part is connected to a water pipe on the apparatus main body side, and the liquid discharge part discharges an internal liquid into the apparatus main body. The connection tool according to any one of claims 1 to 4, wherein the attachment portion of the connecting pipe portion is configured to be accommodated in the cover member.