JPH079977Y2 - Solenoid locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a locking device using a solenoid.

<Prior art and problems> In the above-mentioned conventional device, the movable projection retracts while the solenoid is energized, and the locking piece is rotated to release the locked state between the locking projection and the locking rod. , Was designed to raise the fire protection panel. That is, since the locking piece is urged by a spring so as to always maintain the locked state, the cord connected to the solenoid at the time of fire or due to rat etc. If you disconnect
Even when an abnormality occurred, the solenoid was not energized, and the locking piece always maintained the locked state, and the initial purpose could not be achieved.

On the other hand, when the energizing state is always applied, the moving projection is pulled in to bring the engaging piece into the engaging state, and only when an abnormality occurs, the engaging piece is deenergized and the engaging piece is released by the spring However, since the moving projection is very cooperatively drawn into the energized solenoid so that the locking rod is engaged with the locking projection (when resetting), the moving projection must be pulled out with care. Therefore, when the locking rod rides over the locking projection, the locking rod may be deformed or the solenoid may be damaged.

《Purpose and configuration of the present invention》 The present invention can fully achieve the purpose of fire prevention and theft prevention by setting the locking piece in the releasing posture not only when an abnormality occurs but also in the case of an unexpected disconnection, and when resetting the solenoid, The purpose of the present invention is to provide a solenoid locking device that has no risk of damaging the locking pieces, etc. The structure is such that the solenoid's moving projection retracts when energized and that it can rotate according to the movement of the moving projection. , At the same rotation center as the operating piece and the operating piece that is urged to rotate in the unlocking direction that pulls out the movable projection at all times,
It is always urged to rotate in the opposite direction to the actuating piece, and when the actuating piece is rotated in the unlocking direction, it always rotates periodically, while it has its own unlocked and locked positions. The locking piece is held so as to rotate within a predetermined range, and has an engaging projection formed at an upper end with an engaging projection protruding in a direction opposite to the moving projection.

<< Example >> Hereinafter, an example is described based on a drawing.

In FIG. 1, reference numeral 1 indicates a solenoid, reference numeral 2 indicates an actuating piece, and reference numeral 3 indicates a locking piece.

The solenoid 1 is screwed to the mounting seat 4, and the moving projection 5 is retracted in an energized state. The moving projection 5 is pivotally connected to the spacer 6 made of synthetic resin, and the spacer 6 is pivotally connected to the operating piece 2. Has been done.

The mounting seat 4 includes a base plate 41, a spring support piece 42 formed by the side end portion of the base plate 41 raised upward, and a rear end of the base plate 41 with approximately half of the spring mounting protrusion 42 side standing upward. After being given
Further, it comprises a holding projection 43 which is bent upward in a substantially Z shape, and a steady stop connecting projection 44 which is formed at the upper end of the holding projection 43 so as to project forward.
A notch portion 440 is formed on the protrusion 44 so that the upper portion of the locking piece 3 is projected and can be rotated within a predetermined range.

The actuating piece 2 has a spacer 6 on the solenoid 1 side at the lower end.
Longitudinal slot 21 is formed to connect with
A spring mounting hole 22 for holding the end portion of the actuating piece rotating spring 20 is formed at the end portion on the side opposite to 21. In addition, a rotation notch 23 of the locking piece 3 that reaches almost the central portion is formed above the elongated hole 21, and a holding projection 24 of the locking piece rotation spring 7 is provided at the end opposite to the rotation notch 23. Are formed. Then, the upper end portion is pivotally fixed to the holding projection 43 together with the engaging piece 3 by the connecting pin 30.

One end of the operating piece rotating spring 20 made of a tension spring is held by the spring supporting projecting piece 42 and the other end is held by the spring mounting hole 22, so that the operating piece 2 always pulls out the moving projection 5 in the unlocking direction. It is urged to rotate.

The locking piece 3 is pivotally fixed to the holding projection piece 43 together with the operating piece 2 by the connecting pin 30 so that the engaging piece 3 is provided with a rotary cutout for the operating piece 2.
The rotation force pin 31 is provided so as to project at a position projecting into the solenoid 23, and projects upward from the notch 440 at the upper end thereof.
Of the movable projection 5 is cut out in a predetermined range to form a locking projection 32 projecting to the opposite side of the movable projection 5.
An inclined surface 33 is formed on the upper surface of 32.

The locking piece 3 is attached to the connecting pin 30, one end of which is held by the holding projection 24 of the actuating piece 2 and the other end of which is an opening spring held by the rotation force pin 31. It is always urged by 7 to rotate in the direction opposite to that of the operating piece 2.

Reference numeral 8 is formed to have substantially the same shape as the holding protrusion 43 and the steady rest connecting protrusion 44, and has a cutout 81 for fitting the locking piece 3 and the operating piece 2 on the lower surface, which corresponds to the cutout portion 440. 3 shows a steady rest member which is screwed to the back surfaces of the steady rest coupling projection piece 44 and the holding projection piece 43 and serves to steady the locking piece 3 and the operating piece 2.

Further, reference numeral 9 indicates a locking rod formed on a fire door or a fire prevention panel.

The present invention is formed as described above, and in the energized state, since the moving projection 5 is pulled into the solenoid, the operating piece 2 rotates against the operating piece rotating spring 20 and becomes the upright posture. The locking piece 3 is rotated in the locking direction by the locking piece rotation spring 7, and the rotation force pin 31 comes into contact with the upper end of the rotation notch 23 and stops, so that the locking posture is maintained and the locking projection is maintained. The portion 32 is in a state of being locked to the locking rod 9. (The state shown in FIG. 1) Next, the solenoid 1
When the operating piece 2 is not energized, the operating piece 2 is rotated in the unlocking direction while pulling out the moving projection 5 by the operating piece rotation spring 20, and at the same time, the rotation force pin 31 is placed on the upper end of the rotation notch 23. Since they are in contact with each other, the locking piece 3 rotates in the unlocking direction against the locking piece rotation spring 7, and the locked state of the engaging projection 32 and the locking rod 9 is released. (State shown in FIG. 2) On the other hand, when the abnormal situation is released and the solenoid is normally energized and the locking pieces 3 and the like are in the locked posture, the locking rod 9
When locking (resetting) to the locking projection 32,
When the locking rod 9 is brought into contact with the inclined surface 33 of the locking projection 32 in the state shown in FIG. 1 from above and the locking rod 9 is pushed in, the locking piece 3 is locked by the inclined surface 33. It rotates in the unlocking direction against the one-sided rotation spring 7.

At this time, the rotation force pin 31 has a notch for rotation of the operating piece 2.
Move within 23.

Then, the locking piece 3 is in the unlocked posture (the state shown in FIG. 3), and when the locking rod 9 rides over the engaging projection 3, the locking piece 3 is rotated by the locking piece rotation spring 7. Rotates in the locking direction and returns to the state shown in FIG.

<Effect> As described above, the present invention locks the moving projection when it is energized, so the lock is released not only when an error occurs but also when an unexpected disconnection occurs (when the solenoid is not energized). It is in a state where it does not block the movement of fire doors, fire prevention panels, etc., and is excellent in safety.

Also, the operating piece is rotatable according to the movement of the moving protrusion,
The solenoid is energized because the locking piece is always biased to rotate in the unlocking direction to pull out the moving projection, and the locking piece always rotates in synchronization with the rotation of the operating piece in the unlocking direction. If not, the locking piece is surely in the unlocked posture and unlocked.

Further, since the locking piece is independently held in the unlocked posture and the locked posture so as to rotate within a predetermined range, only the rotation of the locking piece can be performed when resetting the locking rod.
It does not require a strong force as in the past, and does not deform the locking piece or damage the solenoid itself.

[Brief description of drawings]

 FIG. 1 shows one embodiment of the present invention, FIG. 1 is an exploded perspective view of essential parts of the present invention, FIG. 2 is a front view in a locked state, FIG. 3 is a front view in an unlocked state, and FIG. [Fig. 4] is a front view of a reset state. 1 …… Solenoid 2 …… Operating piece 3 …… Locking piece 32 …… Locking projection 5 …… Movement projection

Claims (1)

[Scope of utility model registration request] 1. A moving projection of a solenoid which is retracted in an energized state, an operating piece which is rotatable according to the movement of the moving projection, and is biased so as to always rotate in a lock releasing direction to pull out the moving projection, and an operation. At the same center of rotation as the one piece, it is always biased to rotate in the opposite direction to the operating piece, and when the operating piece rotates in the unlocking direction, it always rotates periodically,
A solenoid characterized in that it is composed of a locking piece that is independently held in a lock release position and a lock position so as to rotate within a predetermined range, and has an engaging projection formed at the upper end that projects in the direction opposite to the moving projection. Locking device.