JPH0542290Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a solenoid valve, particularly a solenoid valve for gas.

(Prior art and problems) A solenoid valve that opens and closes the valve by magnetic force by providing a valve seat for opening and closing the valve port at the end of the plunger facing the yoke is disclosed in, for example, Utility Model Publication No. 55-4616 and Utility Model Application Publication No. 4616/1983. As seen in No. 61-202771, many proposals have been made by the applicant and others. In conventional solenoid valves, a cover body incorporating an electromagnetic device consisting of a yoke, plunger, coil, etc. is connected to the valve body case using screws, etc., but the connection position of the cover body to the valve body case is determined by the screws. 90 due to mounting holes
There was a problem in that it could only be set to a predetermined angle such as 45 degrees or 45 degrees. This is because the cover body generally had a configuration in which a metal plate was formed into a cubic frame shape and screw holes were provided at the four corners of the leg pieces. Therefore, conventional solenoid valves have electrical terminals that also protrude outward from the valve body case in which the gas inlet and outlet are opened laterally.
Since it was difficult to set the cover body in any direction within a 360 degree range and to connect the cover body and install it as an integral part, when assembling a solenoid valve into a gas appliance, it completely and fully meets the requirements of the gas appliance. The problem was that it could not be done.

(Purpose of the invention) The present invention was devised in view of the problems of the conventional technology. An object of the present invention is to provide a solenoid valve in which the coupling position of a cover body incorporating an electromagnetic device can be arbitrarily determined within a 360 degree range, and the direction of an electric terminal to a coil can be freely selected. It is something.

(Means for Solving the Problem) In order to achieve the above object, the solenoid valve in the present invention includes a yoke 2 fixed to the upper end so as to be excited by the coil 1, and a yoke 2 that is attracted or attached to the yoke 2. a plunger 4 that slides up and down in a plunger guide 3 so as to be repulsed;
This is a solenoid valve consisting of a valve seat 6 attached to the lower end to open and close the valve port 5. The coil 1, the yoke 2, the plunger 4, the valve seat 6 attached downward to the end of the plunger, etc. are connected to the coil 1. The electric terminals 1a and 1b are assembled into a cylindrical cover 7 made of a thin sheet metal cylindrical pipe so as to protrude to the outside, and the cylindrical cover 7 is constructed of a valve body case 8 with an inlet 12 and an outlet 13 formed on the side thereof. After the cylindrical cover 7 is fitted into the circular mounting hole 10 on the upper surface so as to be freely rotatable and the direction of the electric terminals 1a, 1b to the coil 1 is set, the cylindrical cover 7 is immovably fixed to the valve body case 8.

Further, it is preferable that a locking flange 9 is formed on a part of the cylindrical cover 7 by flare processing, and that this locking flange 9 is fitted into a fitting portion of the valve body case 8 and secured by caulking or the like.

(effect) The above technical means works as follows.

As shown in Fig. 1, the valve seat 6
is in elastic contact with the valve seat 5a of the valve port 5 due to the elasticity of the valve spring 11, thereby maintaining the valve closed state.

When the electric terminals 1a and 1b are connected to an electric circuit and current is passed through them, the coil 1 becomes energized and the yoke 2 is excited, so that the plunger 4 is pulled up and attracted by magnetic force. For this reason, the valve seat 6 moves away from the valve seat 5a against the urging force of the valve spring 11, so that the valve port 5 opens and becomes an open state.

Gas enters the valve chamber 14 through the inlet 12 and from there flows out through the valve port 5 to the outlet 13.

A locking flange 9 made of an annular folded bulge is formed by extrusion on the lower outer periphery of the cylindrical cover 7.
When the cylindrical cover 7 and the valve body case 8 are fitted so that the cylindrical cover 7 and the valve body case 8 are fitted into the circular mounting hole 10 of the valve body case 8, the cylindrical cover 7 is free relative to the valve body case 8 since the cylindrical cover 7 is also circular. It becomes possible to rotate. Therefore, by rotating the cylindrical cover 7 through 360 degrees and joining both together at an arbitrary position, the directions of the terminals 1a and 1b can be freely set.

(Effects) The present invention allows the coil 1, the yoke 2, the plunger 4, the valve seat 6 attached downward to the end of the plunger, etc. to be moved from a thin metal cylindrical pipe so that the electrical terminals 1a and 1b of the coil 1 protrude to the outside. The cylindrical cover 7 is fitted into the circular mounting hole 10 on the top surface of the valve body case 8 which has an inlet 12 and an outlet 13 on the side so as to be freely rotatable and connected to the coil 1. After setting the direction of the electric terminals 1a and 1b, the cylindrical cover 7 is fixedly and integrally fixed to the valve body case 8. Therefore, the cylindrical cover 7 is made of a cylindrical pipe made of a thin sheet metal. Since a pipe is used, the cover body is easy to manufacture and process, and it can be attached to the valve body case at any desired angle in 360 degrees. In addition, since the cylindrical cover 7 uses a cylindrical body made of thin sheet metal, the locking flange 9 can be easily formed using a press or the like by flare processing on a part of the cover, making it easy to attach it to the fitting part of the valve body case. Caulking can be performed strongly and reliably.

(Embodiment) The cylindrical cover 7 is made of a hollow cylindrical body having a certain wall thickness, such as a steel pipe, and a plunger guide 3 is placed from the center of the cylinder cover 7, and a coil 1 wound around the coil bobbin 1c is placed concentrically therein. An upper end cover 15 with the yoke 2 attached thereto is provided on the upper part, and a lower end cover 16 is attached on the lower part, respectively, which are fixed together by bending the upper and lower ends 7b and 7c of the cylindrical part by caulking or the like.

At the top of the plunger guide 3 is an upper end cover 15.
The yoke 2 fixed to the yoke 2 is fitted. plunger 4
is inserted from the lower end opening of the plunger guide 3 and can freely slide up and down.

The locking collar 9 is integrally provided by extruding and forming a folded bulge on the outer peripheral surface of the lower part of the cylindrical cover 7 so as to have an annular shape by flaring. This locking collar 9 is fitted into the circular mounting hole 10 of the valve body case 8, and a ring packing 17 is interposed inside to maintain airtightness, and in this state, the cylindrical cover 7 can freely rotate. When the peripheral protrusion 10a of the attachment hole 10 is bent inward and caulked, it becomes impossible to remove and becomes an immovable integral piece.

The electrical terminals 1a and 1b are set to protrude toward the outer circumference from the notch 7a on the circumferential surface of the cylindrical cover 7 as shown in FIG. 1, but they may also be set to protrude upward from the upper end cover 15. be.

In FIG. 1, 18 is a spacer.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of the electromagnetic valve of the present invention, and FIG. 2 is a plan view thereof. 1...Coil, 2...Yoke, 3...Plunger guide, 4...Plunger, 5...Valve port,
6... Valve seat, 7... Cylindrical cover, 8... Valve body case, 9... Locking collar, 10... Mounting hole, 11
... Spring, 12 ... Gas inlet, 13 ... Gas outlet, 1a, 1b ... Terminal.

Claims (1)

[Claims for Utility Model Registration] (1) A yoke 2 fixed to the upper end so as to be excited by the coil 1, and a plunger guide 3 that slides up and down so as to be attracted to or repelled by the yoke 2. plunger 4 and plunger 4
A solenoid valve comprising a valve seat 6 attached to the lower end of the coil 1 to open and close the valve port 5.
The yoke 2, the plunger 4, the valve seat 6 attached downward to the end of the plunger, etc. are assembled into a cylindrical cover 7 made of a thin sheet metal cylindrical pipe so that the electric terminals 1a and 1b of the coil 1 protrude outside. The direction of the electric terminals 1a and 1b to the coil 1 is set by fitting the cylindrical cover 7 into the circular mounting hole 10 on the top surface of the valve body case 8, which has an inlet 12 and an outlet 13 on the side, so as to be freely rotatable. A solenoid valve characterized in that a cylindrical cover 7 is fixedly and integrally fixed to a valve body case 8 afterwards. (2) A locking flange 9 is formed on a part of the cylindrical cover 7 by flare processing, and this locking flange 9 is fitted into the fitting portion of the valve body case 8, and secured by caulking or the like. A solenoid valve according to claim 1 of the patent registration claim.