SU630181A1 - Lift cage load monitoring device - Google Patents

Description

forming a hinged narallogram and connecting the l-shaped element with frame 2 through the brackets 9 mounted on it with prisms 10 and 11, pa that are supported by the second ends of the t 7 7 8, and the 7 ha 10 abuts 8 covers prisms 6 and 11.

These two hinged narallograms, located on two mutually opposite walls of the L-shaped element, ensure the parallel displacement of the platform under the influence of the load in the cab.

On the frame 2, under the L-shaped element, a cab loading sensor interacting with it is installed, consisting of a two-arm lever 12, located on support 2 fixed to frame 2 and cooperating with one arm 14, spring-loaded with spring means 15 relative to frame 2, with frame 16, strengthened .m on the L-shaped element, and on the other shoulder of the G /, equipped with a magnet 18, with magnetically adjustable contacts 19 (reed switches) mounted on the rack 20, which is reinforced, and electrically connected with the lift control system.

The number of co-tacts 19, the distance between them, and the ratio of the levers of the lever 12 are selected depending on the number of stages of discrete loadings of cabpies required for signaling to the elevator control system in order to ensure accurate fitting of the cabin on the floor sites.

The device works as follows.

When the platform 1 is loaded, it is lowered with the L-shaped element, and lowering will occur parallel to the horizontal plane, since the L-shaped element is connected to the cab frame 2 by hinge parallelograms.

At the same time, the unr 16 acts on the shoulder 14 of the lever 12, which compresses the spring 15 and subsectional p. Pecho 17 with the magnet 18.

At the same time, due to the load zelichiny in the cab, the spring 15 and lever 12 are compressed at the appropriate angle while the magnetic magnet 18 simultaneously acts on the magnetic-control contact corresponding to this cab load, causing a signal in the control system.

With the release of the cab from the load 15 returns the platform to the original polisation.

The novelty of the design of the floor of the elevator car provides the following positive effect: simplification of the structure due to the use of a parallelogram instead of complex and cumbersome systems levers on known floors of elevators; increased sensitivity to loading as a result of using nrizm instead of sub-hinge joints in the well-known truck cabs, which provides a significant reduction in burial losses, as well as replacing a number of levers with weights available in the well-known cabio load sensors, and one lever,

equipped with a magnet acting on magnetically controlled contacts.

Claims (2)

1. A device for controlling the loading of a lift elevator, comprising a vertical sliding platform, a non-moving cab frame, a parallel non-moving mechanism and a platform that connects it kiaematically to the frame, and a cabin loading sensor, characterized in that, in order to simplify the design and increase sensitivity, the parallel loading mechanism the platform shuffle contains a G-shaped elemeite, made from the side vertical walls and interacting with the loading sensor, the irich frame and the vertical walls are provided with prisms and corners The upper surface of the L-shaped element is fitted with stops that interact with the platform, and each of the side vertical walls is connected to the frame by means of two tg, which form a hinged narallogram and overlapping the ends on the prisms. 2. The device according to claim 1, characterized in that the loading sensor comprises magnetically activated contacts mounted on the cab frame, a double-arm lever, iodoupulated relative to the frame, and an anvil on the L-shaped element and interacting with one shoulder of the double-arm lever on the other shoulder which ukrenlep magnet interacting with magnetic contacts. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 468860, cl. B 66B 5/14, 08/03/73, four /;