JP3237627U - Union nut type washing machine adapter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adapter having a fine foam generation function which enhances a cleaning effect, which can eliminate a troublesome procedure at the time of mounting the adapter. SOLUTION: This is a union nut type washing machine adapter for connecting a water supply hose and a washing machine, and is composed of a water supply hose connecting member 2, an intermediate member 3 and a union nut 4, and the water supply hose connecting member 2 is attached to one end side. A coupling means 5 for connecting to a connecting joint provided on the water supply hose provided, a female screw screwed with a male screw 15 formed on the outer periphery of the end portion of the intermediate member 3 provided on the other end side, and a female screw provided inside. The intermediate member 3 has a fine bubble generation mechanism (9a, 9b, 10), and the intermediate member 3 is fitted with a shaft portion 16 fixed to the other end side of the water supply hose connecting member 2 and the union nut 4 to be loosely fitted. The union nut 4 has a portion 18, a top surface portion 26 having a circular hole 25 loosely fitted in the mounting portion 18, and a female screw 27 formed on the inner surface. [Selection diagram] Fig. 1

Description

The present invention relates to a union nut type washing machine adapter to be attached to a water inlet of a washing machine.

FIGS. 7 to 9 of Patent Document 1 disclose an adapter constituting a fine bubble water generator attached between a washing machine and a water supply hose. The adapter is attached between the water supply hose and the washing machine, and uses the pressure drop of the water flow accompanying the water supply to generate water containing fine bubbles and supply it to the washing machine.
The adapter is integrally formed of resin, has a screw portion having a male screw formed on one end side connected to the water supply hose, and a screw having a male screw formed on the other end side connected to the washing machine. It has a joint. Further, a flow path for flowing water supply from one end side to the other end side provided with a bubble generation mechanism inside is formed.

Japanese Unexamined Patent Publication No. 2019-25451

The adapter has water supply hoses and screwed portions connected to the washing machine at both ends, and each screwed portion is formed as a simple spiral strip formed on the outer periphery of the end portion. Therefore, when the adapter attached to the water supply hose is connected to the washing machine, there is a problem that the adapter cannot be attached to the washing machine unless the water supply hose is rotated together.
The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide an adapter having a fine bubble generation function that can eliminate troublesome procedures when mounting the adapter and enhance the cleaning effect. ..

In order to solve the above problems, the present invention has the following configurations.
A union nut type washing machine adapter that connects the water supply hose and the washing machine.
It consists of a water supply hose connection member, an intermediate member, and a union nut.
The water supply hose connecting member is screwed with a connecting means for connecting to a connecting joint provided on the water supply hose provided on one end side and a male screw formed on the outer periphery of the end portion of the intermediate member provided on the other end side. It has a female screw and a fine bubble generation mechanism provided inside.
The intermediate member has a shaft portion fixed to the other end side of the water supply hose connecting member and a mounting portion for loosely fitting the union nut.
The union nut is a union nut type washing machine adapter characterized by having an upper surface portion having a circular hole loosely fitted in the mounting portion and a female screw formed on the inner surface.

The union nut according to claim 1, wherein the fine bubble generation mechanism is formed by a mortar-shaped water passage in which the area of the opening serving as the outlet of the water flow is formed to be small in the area of the opening serving as the inlet of the water flow. Type washing machine adapter.

The union nut type washing machine adapter according to claim 1 or 2, wherein the intermediate member has a fitting portion that can be fitted to the tip of a tool inserted from the union nut side.

The union nut type washing machine adapter according to the present invention is provided with a fine bubble generation mechanism that generates fine bubbles, which is said to enhance the washing effect, in the water supplied to the washing machine. It has the effect of being easy to attach to the washing machine. The existing washing machine requires the installation of a water supply hose for connection between a general household water tap and the washing machine, but the union nut type washing machine adapter according to the present invention has the existing water supply hose. Fine bubbles can be included in the water supplied to the washing machine by the simple task of installing it between the washing machines.
Further, the union nut type washing machine adapter according to the present invention has connection means using screws corresponding to the specifications of the parts to be connected on the water supply side connected to the water supply hose and the discharge side connected to the washing machine. However, in particular, the connection portion on the discharge side connected to the washing machine has a union nut structure. As a result, even if it is already connected to the water supply hose, it is not necessary to turn the water supply hose together, and it has the effect that it can be attached only by tightening the union nut.
Further, since the tightening can be performed reliably, there is an effect that the fastening portion is less likely to loosen due to the vibration of the washing machine.

It is explanatory drawing which showed the cross section of the adapter which concerns on this invention. It is an overview perspective view of the state which the adapter which concerns on this invention is seen from diagonally below. It is an overview perspective view of the state which the adapter which concerns on this invention is seen from diagonally above. It is a top view of the adapter when the posture shown in FIG. 1 is the front view. It is the bottom view of the adapter when the posture shown in FIG. 1 is a front view.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a cross section of a union nut type washing machine adapter (hereinafter referred to as “adapter”) according to the present invention.
The adapter 1 is composed of three main elements: a water supply hose connecting member 2, an intermediate member 3, and a union nut 4.
The water supply hose connecting member 2 is formed as a short cylindrical member, and a male screw 6 for connection is provided on the outer periphery as a connecting means 5 for connecting to a connecting joint provided on the water supply hose on one end side. Further, a two-sided width 8 is formed on the outer periphery of the tubular portion 7 on the opposite end side of the coupling means 5 so that it can be sandwiched by a spanner or the like.

Inside the coupling means 5, a mortar-shaped water passage 10 having a depth from the opening 9a formed in the center of the end face to the vicinity of the center of the inside is provided. The opening 9b, which is the outlet of the flowing water that has passed through the water passage 10, has a smaller area than the opening 9a, and the pressure increased by the water passage 10 is released to generate fine bubbles in the flowing water. It constitutes the generation mechanism.
Inside the tubular portion 7 below the coupling means 5, a circular tubular hole 12 extending from the end surface 11 to the opening 9b, which is the outlet of the water passage 10 near the center, is provided. A female screw 13 is provided on the inner surface of the tubular hole 12 so as to be screwed with one end of an intermediate member 3 described below.

The intermediate member 3 has a shaft portion 16 having a male screw 15 screwed with a female screw 13 provided on the inner surface of the tubular hole 12 of the water supply hose connecting member 2 on one end side. Further, a mounting portion 18 provided with a flange 17 for holding the union nut 4 is provided below the shaft portion 16. An annular groove 19 is provided at the boundary between the shaft portion 16 and the mounting portion 18, and an O-ring 20 is mounted on the annular groove 19. Further, a fitting portion 14 having a hexagonal hole shape that can be fitted with a hexagon wrench (tool) that can be inserted from the union nut side is provided in the mounting portion 18, and is provided with the water supply hose connecting member 2. It is designed to be used when the intermediate member 3 is connected and tightened. Inside the shaft portion 16 and the mounting portion 18, a hollow water passage 30 communicating from one end to the other end is provided. An opening 31 of the water passage 30 is formed on the end surface on the shaft portion 16 side, and the area of this opening 31 is formed sufficiently larger than the opening 9b of the water supply hose connecting member 2 and occurs in the opening 9b. It is possible to open the water pressure in the water channel 30 at once.
The O-ring 20 mounted in the annular groove 19 is adapted to prevent water leakage that occurs between the water supply hose connecting member 2 and the intermediate member 3 by coming into contact with the inner surface of the tubular portion 7 of the water supply hose connecting member 2.

The mounting portion 18 has a small diameter portion 21 below the annular groove 19 and a large diameter portion 22 having a larger outer diameter than the small diameter portion 21, and a shoulder portion having a step at the boundary between the small diameter portion 21 and the large diameter portion 22. 23 is provided. The union nut 4 mounted by using the step provided with the shoulder portion 23 is held. Further, a washer-shaped elastic packing 24 is mounted on the lower end surface of the mounting portion 18 so as to come into contact with a water suction port (not shown) of the washing machine.

The outer circumference of the union nut 4 has a shape that can be pinched by a wrench such as a spanner so as to function as a hexagon nut. The union nut 4 has a tubular internal space having an upper surface portion 26 having a circular hole 25 through which only the small diameter portion 21 of the intermediate member 3 is inserted, and the water inlet of the washing machine is formed on the inner circumference of the internal space. A female screw 27 to be screwed with the formed male screw is provided.

The usage of the adapter 1 will be described.
The adapter 1 is initially connected to the other end of a water supply hose (not shown) connected to the tap. The water supply hose is usually attached to the washing machine. One end of the water supply hose is provided with a mounting member for mounting on the water tap, and the other end is provided with a mounting portion for connecting to the water inlet of the washing machine. The mounting portion at the other end is generally a female screw fixed to a water supply hose, and is screwed with a male screw formed at the water inlet of the washing machine.
The adapter 1 is adapted to be coupled by screwing the coupling means 5 into the female screw of the water supply hose provided for the water inlet of the washing machine.

As described above, the adapter 1 connected to the other end of the water supply hose is integrated with the water supply hose so that it can freely rotate to the end of the water supply hose and screw into the water inlet of the washing machine. Will be provided. The adapter 1 can be connected to the water inlet of the washing machine by rotating only the freely rotatable union nut 4 without rotating the water supply hose itself.

The adapter 1 has a so-called fine bubble generation mechanism for generating fine bubbles in a water stream. The fine bubble generation mechanism increases the water pressure and the flow velocity by reducing the area of the channel from the upstream to the downstream by the mortar-shaped channel 10, and at once from the outlet of the channel 10 where the passage area is minimized. It has the function of generating fine bubbles in the water flow by discharging the running water into a wide space. There are various mechanisms for generating fine bubbles, and structural conditions for efficient functioning are required, but detailed conditions are omitted in the present specification. Further, a fine bubble generation mechanism having another structure may be provided.

The present invention can be used for a fine bubble generator capable of generating fine bubbles in the feed water that enhance the cleaning effect of the washing machine.

1 Adapter 2 Water supply hose connection member 3 Intermediate member 4 Union nut 5 Coupling means 6 Male screw 7 Cylindrical part 8 Width across flats 9a Opening 9b Opening 10 Water passage 11 End surface 12 Cylindrical hole 13 Female screw 14 Fitting part 15 Male screw 16 Shaft 17 Flange 18 Mounting 19 Circular groove 20 O-ring 21 Small diameter 22 Large diameter 23 Shoulder 24 Elastic packing 25 Circular hole 26 Top surface 27 Female screw 30 Water passage 30
31 opening

Claims (3)

A union nut type washing machine adapter that connects the water supply hose and the washing machine.
It consists of a water supply hose connection member, an intermediate member, and a union nut.
The water supply hose connecting member is screwed with a connecting means for connecting to a connecting joint provided on the water supply hose provided on one end side and a male screw formed on the outer periphery of the end portion of the intermediate member provided on the other end side. It has a female screw and a fine bubble generation mechanism provided inside.
The intermediate member has a shaft portion fixed to the other end side of the water supply hose connecting member and a mounting portion for loosely fitting the union nut.
The union nut is a union nut type washing machine adapter characterized by having an upper surface portion having a circular hole loosely fitted in the mounting portion and a female screw formed on the inner surface. The union nut according to claim 1, wherein the fine bubble generation mechanism is formed by a mortar-shaped water passage in which the area of the opening serving as the outlet of the water flow is formed to be small in the area of the opening serving as the inlet of the water flow. Type washing machine adapter. The union nut type washing machine adapter according to claim 1 or 2, wherein the intermediate member has a fitting portion that can be fitted to the tip of a tool inserted from the union nut side.

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