CZ306459B6 - A closure, particularly for closing building and technological openings - Google Patents

Abstract

The closure, particularly for closing building and technological openings, whose essence lies in the fact that, on the bottom part of the cover (10) of the opening (1) being closed, there is the pendulously placed balance beam (2), which is provided with the arm (6) which, in the open position of the closure, sits down on the bottom of the cover (10) wall, as well as the claw (7), whose functional part is, in the closed position of the lid (10), resting on the counterpart element (5) which is anchored in the opening (1) being closed. The cover (10) is equipped with the closing opening (12) for closing the closure and the opening opening (11) for opening of the closure. The balance beam (2) is pivotally attached to the pin (3) which is anchored with the holders (4) on the bottom part of the cover (10). The axis of the pin (3), on which the balance beam (2) is placed, can be either parallel to the longitudinal axis of the opening being closed or perpendicular to it. The arm (6) of the balance beam (2) and the claw (7) of the balance beam (2) are balanced relative to the pin (3), so that the closure is maintained in the closed position.

Description

Closure, especially for closing construction and technological openings

Field of technology

The invention relates to a closure intended for closing or covering all construction and technological openings, for use both in dry areas, but in particular in underwater areas, i.e. in sumps and pools, for example.

Prior art

The principle of a screw and a thread in the counter plate of a flange or the principle of a bayonet key and a bayonet lock on the counter plate are usually used to close the lids of construction and technological openings.

However, the technical problem lies in the fact that screw connections or screws are very often in a humid environment or in an environment that is flooded with water. It follows that the subsequent handling when unscrewing or re-screwing with a screwdriver, wrench or Allen key is very time-consuming and often uncomfortable for the operator when working underwater. A big problem arises in the surface oxidation of screw joints, which then often results in the bending of the screws and subsequent lengthy repairs. At the same time, the same problem is the fitting of the holes in the lid to the axis of the threads in the counter plate. The alignment of the threaded bolts is therefore very laboriously ensured. Sometimes it happens that the misalignment of the screw with respect to the thread destroys the threads and they are thus unusable for further anchoring.

The essence of the invention

The object of the invention is to alleviate the disadvantages of the above-mentioned problems. This object is achieved by the invention for closing construction and technological openings on another principle, the essence of which consists in that a rocker arm is pivotally mounted on the underside of the closing opening lid, which is provided with an arm which abuts the bottom wall of the lid on the one hand, a tooth, the functional part of which rests in the closed position of the lid on a counter-element which is anchored in the closed opening, the lid being provided with a closing opening for closing the closure and an opening opening for opening the closure.

The rocker arm is rotatably mounted on a pin which is anchored by brackets on the bottom of the lid. The rocker arm and the rocker arm tooth are balanced relative to the pin so that the closure is maintained in the closed position.

A spring may be attached to the rocker arm tooth to secure the tooth in the closed position. In a preferred embodiment, the functional part of the rocker arm tooth is oblique, so that it forms a self-locking connection with the counter-element in the closed position of the closure.

This closure according to the invention allows easy, fast and repeatable closing of any technological openings and its advantages are particularly evident in openings in underwater spaces, i.e. in sumps and pools, for example. In these cases, closing the holes with a screw, for example, is very inconvenient, and not only with repeated opening and closing, the threads are damaged.

The closure according to the invention can reliably close openings which can be formed in the horizontal or vertical walls of technological objects.

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Explanation of drawings

An exemplary embodiment of a closure according to the invention is shown in the accompanying drawings, in which Fig. 1 shows a schematic solution of the closure mechanism, where the axis of the rocker pin is perpendicular to the axis of the closed opening, Fig. 2 shows a closed opening from above with the mechanism according to Fig. a schematic solution of an alternative embodiment of the closure mechanism, where the axis of the rocker pin is parallel to the axis of the closed opening and also allows design on a vertical wall, and Fig. 4 shows a separate rocker with a tooth.

Examples of embodiments of the invention

The invention of the closure is based on the function of a rocker arm 2, which is provided with an opening through which the pin 3 passes, which is firmly anchored by pin holders 4 on the bottom wall of the lid of the closed opening 1. The closed opening can be in both horizontal and vertical planes. inclined plane, and any such technical solution is part of the present invention. The holders 4 are generally fastened to the bottom wall of the lid in a non-detachable manner, i.e. in particular by welding or detachably, i.e. by means of a screw and a nut, for example. It is advantageous if the pin 3 and the pin holders 4 are separated from the rocker arm 2 by an insulating layer. The rocker arm 2 itself and the two holders 4 of the pin 3 are made of precisely cut thick sheet metal of a given shape.

The rocker arm 2 is provided on the one hand with an arm 6 which in the open position of the closure rests on the bottom wall of the lid 10 and on the other hand with a tooth 7, the functional part 8 of which rests on the counter element 5 in the closed position of the lid 10. in the prescribed position, it was pushed under the counter-element 5 and together a solid closure was formed. The counter-element 5 can be provided on the lower part, possibly also with a rotating contact 14, in order to facilitate the mutual movement between these parts of the mechanism.

The arm 6 of the rocker arm 2 and the tooth 7 of the rocker arm 2 are balanced relative to the pin 3 so that the closure is kept in the closed position. A spring can be connected to the tooth 7, securing the tooth 7 in the closed position. The functional part 8 of the tooth 7 of the rocker arm 2 is inclined, so that it forms a self-locking connection with the counter-element 5 in the closed position of the closure.

The lid 10 of the closing opening 1 is provided with a closing opening 12, which allows the closure to be closed by means of a key 13, and an opening opening 11, which allows it to be opened. The opening hole 11 is located above the arm 6 of the rocker arm 2 and the closing hole 12 is located above the lever 9 of the rocker arm 2.

The tooth 7 of the rocker arm 2 is provided with a lead-in oblique functional part 8, which allows, when the lid 10 is pushed onto the technological opening, to deflect into the closed position of the tooth 7 without the use of a cylindrical push key J3. The cylindrical push key 13 is thus used only in the case of closing the tooth 7 of the rocker arm 2 under the counter-element 5 or reopening it.

The rocker arm 2 is shaped and weighed so that it has a center of gravity on the lever side 9 of the rocker arm 2. The rocker arm 2 is thus pushed into the closed position by means of a gravitational force. To turn the rocker arm 2 to the open position, it is thus necessary to overcome the gravitational force of the center of gravity of the rocker arm 2. The center of gravity of the rocker arm 2 is designed so that gravitational forces act on the rocker arm both in the vertical position and in the horizontal position. This feature can be used to lock horizontal floor and vertical wall covers for construction and technological openings. The gravitational force may be enhanced by the force of a spring or similar technical means.

By applying a force by means of a cylindrical push key 13, which may be formed in another shape inserted into the opening 11, the lever 9 of the rocker arm 2 acts and the rocker arm 2 rotates about the axis of the pin 3 so that the tooth 7 extends from the counter element 5 and the whole mechanism thus gets into the open position.

-2 CZ 306459 B6

By applying a force of a cylindrical pressure key 13 to the arm 6 of the rocker arm 2, the tooth 7 of the rocker arm 2 is inserted under the counter-element 5 of the technological opening 1 and thus forms a firm connection between the lid 10 and this opening. At the moment of closing the rocker arm 2, the lever 9 of the rocker arm 2 touches the closed opening 1 from below the lid 10. The closing opening 12 can be used to facilitate closing the opening, the opening opening 11 serving to release the whole mechanism to the open position. A simple cylindrical push key without a technologically modified contact interface is enough to close and open the entire mechanism.

Industrial applicability

The present invention is suitable for closing or covering all construction and technological openings, for use both in dry areas, but especially in underwater areas, i.e. in pits and pools, for example.

Claims (6)

PATENT CLAIMS A closure, in particular for closing construction and technological openings in a vertical and horizontal plane, characterized in that a rocker arm (2) is pivotally mounted on the underside of the lid (10) of the closed opening (1), which is provided with an arm (6) , which in the open position of the closure rests on the bottom wall of the lid (10) and on the one hand by a tooth (7), the functional part (8) of which in the closed position of the lid (10) rests on a counter-element (5) anchored in the closed opening (1). ), the lid (10) being provided with a closing opening (12) for closing the closure and an opening opening (11) for opening the closure. Closure, in particular for closing construction and technological openings, according to claim 1, characterized in that the rocker arm (2) is rotatably mounted on a pin (3) which is anchored by holders (4) on the lower part of the lid (10). Closure, in particular for closing construction and technological openings, according to Claim 1, characterized in that the arm (6) of the rocker arm (2) and the tooth (7) of the rocker arm (2) are balanced relative to the pin (3) so that the closure is kept in the closed position. Closure, in particular for closing construction and technological openings, according to Claim 3, characterized in that a spring is connected to the tooth (7) of the rocker arm (2), securing the tooth (7) in the closed position. Closure, in particular for closing construction and technological openings, according to claim 1, characterized in that the functional part (8) of the tooth (7) of the rocker arm (2) is inclined so as to form a self-locking connection with the counter-element (5) in the closed position of the closure . Closure, in particular for closing construction and technological openings, according to Claims 1 and 2, characterized in that the axis of the pin (3) on which the rocker arm (2) is mounted is parallel to the longitudinal axis of the opening to be closed.