JPH0637098Y2 - Automatic open / close valve device for water passage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) This invention relates to an automatic opening / closing valve device for a water passage such as an automatic faucet.
More specifically, the present invention relates to one having a feature in a seal structure of a connecting portion of a lead wire to an apparatus body.

(Prior Art) An automatic faucet that detects a hand, a body, etc., opens a valve, and automatically spouts water from a spout of the faucet is used.

In this kind of automatic faucet, generally, a sensor for detecting the above-mentioned hand, body, etc. is arranged at the water outlet of the faucet or at an appropriate position, and the sensor is connected to the device main body via a lead wire
Specifically, the solenoid valve and a control circuit for controlling the operation of the solenoid valve are connected to a main body formed in the case.

(Problems to be solved by the invention) By the way, when connecting a lead wire to the main body of the apparatus, usually one connector is provided at the end of the lead wire and the other connector is provided at the main body side to connect them. It is necessary to seal the connecting part of the connector for waterproofing.

The most common means of sealing connector connections is
This is a method of using a waterproof connector as such a connector and simultaneously sealing the joints of the connectors at the same time. However, such a waterproof connector has a drawback that the price is very high (about 8 times that of a normal connector).

(Means for Solving the Problems) The present invention has been made to solve such problems, and its gist is a main body in which a solenoid valve and control means for controlling the operation thereof are incorporated in a case. In a water passage automatic opening / closing valve device having a lead wire for communication with an external element such as a sensor, the first connector fixed to the end portion of the lead wire is connected to the second connector on the main body side. The lead wire is connected by connecting the second connector inside the box provided in the main body, and the first connector is connected to the second connector inside the box to connect the lead wire. The lid body is formed by inserting a packing that extends outward from an insertion portion provided in the lid body of the box and that is watertightly attached to the end of the lead wire or the covering body between the lid body and the second connector. It is designed to seal the insertion part of.

(Operation and Effect of Invention) As described above, according to the present invention, the pair of connectors are housed in the box provided in the main body and connected inside the box, and the lead wire insertion portion of the box lid is connected to the connector. The packing is sandwiched between the lid and the lid to seal.

Therefore, according to the present invention, since it is not necessary to seal the joints of the connectors, it is not necessary to use an expensive waterproof connector as such a connector, and it is possible to use an ordinary inexpensive connector.

In the present invention, since the connector at the end of the lead wire is accommodated inside the box and is pressed by the lid, there is an advantage that the connector can be prevented from coming off at the same time.

(Example) Next, an example in which the present invention is applied to an automatic faucet will be described in detail with reference to the drawings.

In FIG. 2, 10 and 12 are the main body and the water outlet of the automatic faucet provided on the washbasin 14, and the water outlet 12 is provided with a sensor. The sensor detects when a hand is inserted under the spout 12, and the detection signal is the lead wire 16
Is input to the main body 10 through. The main body 10 is constructed by incorporating a solenoid valve and a control circuit for controlling the operation thereof in a case, as will be described later in detail. When the signal from the sensor is input to the control circuit, the control circuit for the solenoid valve is applied. Under the control of (1), the water passage is opened, and the water from the water supply pipe is supplied to the water outlet 12.

The main body 10 has a case 21 including a rear box 18 and a front box 20, as shown in FIGS. 3 and 4. In the rear box 18, a stopcock 22 and a check valve 2
4, a main valve portion 26, a solenoid valve 28, and a generator 30 are incorporated. Here, the solenoid valve 28 is for opening and closing the main valve portion 26 provided on the water passage by opening and closing a pilot valve provided separately from the main valve portion 26, and the generator 30 is The impeller placed on the water passage is rotated by water force to generate electricity,
It supplies power to the storage battery. The solenoid valve 28 normally operates by using this storage battery as a power supply, and operates by using a dry battery, which will be described later, as a power supply when the voltage of the storage battery drops below a certain level.

As shown in FIG. 4, the stopcock 22 has its connecting end protruding from the rear end opening 32 of the rear box 18, and is connected to the wall surface.
It is connected to the water supply pipe embedded in 34.

In the automatic faucet of this example, the water from the water supply pipe is shut off 2
2, through the check valve 24 to reach the main valve portion 26. When the main valve portion 26 is opened by the operation of the solenoid valve 28, the impeller of the generator 30 is rotated via the main valve portion 26, and the outlet 35 of the pipe in the case 35
To Further, a water supply elbow 36 and a conduit connected to the outlet 35
It reaches the water discharge port 12 via 38 and is discharged from the discharge port at the tip thereof. The specific constructions and operations of the solenoid valve 28, the main valve portion 26, and the generator 30 are not directly related to the present invention, and therefore a detailed description thereof will be omitted here.

The front box 20 is a lid that constitutes most of the front box 20.
Has 40. The lid 40 is detachably fitted to the fitting recess 42 on the rear box 18 side at the fitting projection 42 at the base end thereof. The front box 20 is formed so that the width in the left-right direction is larger than that of the rear box 18, and one end (left end in the figure) in the same direction is made to project from the end of the rear box 18, And a step is formed between and.

The front box 20 is separated from the rear box 18 by the partition wall 46.
And the control circuit 48 is housed inside. The lead wire 16 extending from the sensor is connected to the control circuit 48 as shown in FIG.

As shown in FIG. 4, a cylindrical portion 50 is formed integrally with the lid 40 on the front box 20. This cylindrical part 50
Is provided in order to secure an operation space for operating the stopper body 52 of the water stopcock 22, and is provided concentrically with the stopper body 52 and in a state of penetrating the partition wall 46 in a watertight manner. There is.

A small box 54 is provided on the front side of the case 21 including the rear box 18 and the front box 20 as shown in FIG. The small box 54 is partitioned by a wall 58 into a battery box 60 for accommodating the battery 56 and a connecting box 62 for connecting a connector, and its opening is closed by an L-shaped lid 64. It has become so. The lid body 64 has an engaging claw 66 at one end, and the other end of the lid 64 is fixed to the case 21 by a screw 72 while the engaging claw 66 is engaged with the engaging hole 68 provided in the case 21. Fixed. More specifically, a screw hole 70 is formed in the lid body 64, and the screw 72 is inserted into the screw hole 70, and the screw 72 is screwed into the screw fixing portion 74 of the case 21. The other end is fixed.

An opening 76 is formed in the wall portion 58, and a connector 78 is arranged so as to face the opening 76.

On the other hand, at the end of the lead wire 16 extending from the sensor,
The other connector 80 of the pair is fixed, and this connector 80 is connected to the one connector 78 inside the connection box 62, and the lead wire 16 extends out from the notch 82 provided in the lid 64. It has become.

A plate-like packing 84 is watertightly fitted and attached to the end portion of the lead wire 16, and when the lid body 64 is screwed,
The packing 84 is sandwiched between the connector 80 and the lid 64,
The notch 82 of the lid 64 is designed to be sealed.

In the automatic faucet of this example, the pair of connectors 78 and 80 are housed in the connecting box 62 provided in the case 21, and the notch 82 for inserting the lead wire 16 in the lid 64 is the packing.
Sealed at 84. Therefore, it is possible to use a normal connector as the connector instead of the waterproof one.

Further, since the connector 80 at the end of the lead wire 16 is pushed into the inside of the connection box 6 by the lid 64, there is an advantage that the prevention of disconnection from the other connector 78 is achieved at the same time.

Although the embodiments of the present invention have been described in detail above, the present invention can be configured in other forms.

For example, in the above example, by partitioning the small box 54 by the wall 58, the connector box together with the battery box 60
Although 62 is formed, the connecting box 62 can be provided separately from the battery box 60, and the form thereof can be a form other than the above example.

Further, not only when the packing 84 is directly attached to the lead wire 16, but also when the lead wire 16 is covered with a cover, it is possible to attach it to the cover.

In addition, the present invention can be applied to an automatic water faucet in which the water faucet is arranged outside the case, and in the above example, the case of a single water faucet is described as an example. It is applicable to a faucet, and in some cases, the present invention can be applied to a water passage automatic opening / closing valve device other than an automatic faucet. It can be configured in a form in which various changes are made based on the above.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an essential part showing a connector connecting portion and its sealing structure of an automatic faucet according to an embodiment of the present invention.
FIG. 2 is a front view of a basin peripheral portion including the automatic faucet, and FIGS. 3 and 4 are a partially cutaway front view and a partially cutaway plan view of the same automatic water faucet main body. 10: Main body, 16: Lead wire 21: Case, 28: Solenoid valve 48: Control circuit, 54: Small box 64: Lid, 78, 80: Connector 82: Notch, 84: Packing

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. An automatic water passage having a main body in which a solenoid valve and a control means for controlling its operation are incorporated in a case, and a lead wire for connecting with an external element such as a sensor is connected to the main body. In the on-off valve device, the first connector fixed to the end of the lead wire is connected to the second connector on the main body side to connect the lead wire, and the second connector is placed inside the box provided in the main body. At the same time, the first connector is connected to the second connector inside the box so that the lead wire extends out from the insertion part provided in the lid of the box, and the end of the lead wire or its covering body is provided. An automatic water passage opening / closing valve device characterized in that a watertightly attached packing is sandwiched between the lid and a second connector to seal the insertion portion of the lid.