SU13028A1 - The device of the middle lock for the wings of the bridge span that open up with lift - Google Patents

Description

The proposed invention has the intent to close the wings of the lift bridge by covering their oblique ends with one or two collars fixed on the wings, and, in the case of rotary collars, the previous ones close and open the wings automatically (their weight on the system of levers and snaps, fortified to the wings m.,

In FIG. 1 shows a vertical section of a middle lock with a clamp fixed to the upper wing; FIG. 2 is a scheme for closing a bridge with a fixed yoke; FIG. 3-the same scheme with a swing clamp; FIG. 4 is a perspective view of an apparatus for automatically operating an oscillating yoke; fig; An o-side view of a device for wrapping a second rocking yoke with a two-yoke lock design and FIG. 6 is the same vertical cut along the second yoke.,

 The arrangement and operation of the proposed middle lock for the lifting bridges is as follows. Depending on the perception by the adjustable span of the bending moments of the same or different signs, the wings of this span in its closed position are covered by one or two clamps. In the case of a single collar (Fig. 1), the obliquely cut ends of the wings A закры B in the closed position of the bridge are covered with the collar O, fixedly fortified or hanging on the upper wing of B. 4. In the case of a fixed yoke O, when closing the bridge, the wings move out of position I (Fig. 2) in the direction indicated by the arrows, and, having reached the position P, wing B covers wing A, When, further closing the nose of wing A, it sinks into the clamp Oh, the supporting parts on the nose of the wing 5 (Fig. 1) fit onto the nodushka of the wing A and the lock is locked. The opening of the bridge is performed by rotating the wings in the opposite direction, thanks to the outline along the arc of a circle from the center to (Fig. 1), the nose of the wing A emerges freely from the yoke. In the case of a swinging collar, when the bridge is closed, the wing B covers wing A (Fig. 3), but the collar O swinging on the axis O O (Fig. 4) is provided with a weight that tends to give it a vertical position. The nose of the wing A, which is included in the clamp, is described / along an arc of a circle from point k (Fig. 1). As indicated above, the collar O tends to be in a vertical position, but may be locked in an inclined position;

a locking mechanism, the device of which. is as follows. The abed cranked roller (Fig. 4) has rigid nodes, & and c. At the end of its a, with the help of a hinge, a round rod a e e is attached, to the end of which, also a hinge, is attached a cylinder e f, and the end of the shaft / b, a hole through the corner shelf horizontal l st. The end is inserted into the eyelet of the roller TP, which rests hingely on lock 8 with the end t. The tip ц moves into the hole in the wall of the wing B. The position of the roller abed relative to the wall is fixed by two bearings b and b, hollowed to the wall of the wing. A spiral spring P is put on the roller tp, which at one end rests on the lock S, and the other on the wall of the wing B and seeks to push the roller out of the hole in the wall, which prevents the nut t. The lock 8-steel plate, having a notch, can rotate in a horizontal plane around the center J, slides along the console and, while the spring p moves towards the end of the console, turning: the abed roller and lowering the cylinder e /. When rotating about the axis of the oh collar O, the load is applied to the load d, the latter, acting on the wedge plane of the lock 8, will enter the socket xy, & The clamp will be locked. When the wings of the bridge are rotated downwards from their higher position, the collar O, locked with the lock S, will not move relative to the wing B (Fig. 3). When the end of f (Fig. 4) is fixed: the cylinder e / in the wing A, the latter starts to rise, turning the roller abed and pushing off the lock S, the yotorhy frees the clamp 0, and the latter, due to its own weight, takes a vertical position, covering the nose of the wing A from below and this is how the bridge is closed. Lifting the wings proizvo, dits as well as in the case of a non-motionally strengthened yoke.

At the device of a movable nrolet perceiving the bending moments of two

 Signs, besides the hanging collar, fixed or movable on the upper wing of the span, another device is attached to the lower wing, consisting in the following. The half-hole O, which encircles the wing A (Figs. 5 and 6) and is tightly attached to it, has lugs into which the axis of the axles will extend. On the T-axis, except for a half-clamp O, a clamp is fastened O, which is capable of

It is rotated 9 provided at the bottom with a load d, setting clamp 0 (vertical half-length. Lock K (Fig. 5), having a plate-like shape with a thickening at the end forming a protrusion, associated with the hinge / wing W, due to its own weight, tends to go down rotating near the axis f. The lever bd is mounted on the horizontal axis tightly attached to the farm using the console e. The ends e and; and the rod is threaded into the hole in the shelves of corners, with the lock K, and the end may be lowered and lowered in the hole, moving the whole system of rods. This movement is limited to a nut p, which prevents excessive lifting of the end a of the rod A. The upper part of the end of the nose 5 is described by the arc of a circle having a center at the point t. When the bridge is closed, the clamp O, zyperty in position O with the lock K, moves obliquely relative to the wing A until the nose B presses the end a, the rod a b, which rotates the lever b to lift the lock k and release the ho-, O muta. The latter, until the action of the load d, draws the lower end down all the way t and, rotating around the axis of t t, puts its upper end on nose B. To open the bridge, it is necessary to remove the collar O from the nose of the wing B, for which there is a flexible connection of the lower end of the collar O through the block I with the corresponding mechanism, with the help of which the collar from the position O Onremesses to the position O the nose of the wing B. At the same time, the lock M drops down and the clamp is in position. On the trunk B, the hoyut O (Fig. 4), described above, will remain, and the further opening of the bridge is carried out as outlined earlier, when describing a lock with one host.

The subject of the patent.

1. The device of the middle lock for opening up the wings of the bridge span, characterized in that the cut ends of them in the closed position of the bridge are covered by the O collar, fixedly (Fig. 1) or rotatably fixed on the upper wing, than in the latter case the marked collar when lifting The wings are automatically gripped by a pivotal latch, xS (Fig. 4), the stem of which is connected by a system of levers with a pin f passing through the lower flange of the wing.

2. Modification described in n. 1, characterized by the use of an additional collar O (Fig. 5), hinged forwards by the axis t on the lower wing, held when raising the wings with the latch K, connected by lever lever with pin and a & passing through the top along the farm.

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