CN2441780Y

CN2441780Y - Two way lift brake safety clamp

Info

Publication number: CN2441780Y
Application number: CN 00221539
Authority: CN
Inventors: 盛嘉勋
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-28
Filing date: 2000-08-28
Publication date: 2001-08-08
Anticipated expiration: 2010-08-28

Abstract

The utility model relates to a two-way lifter braking safety clamp, which comprises a base and a braking element, wherein, the inside of the base has a rhombic groove, and the unilateral rhombic braking element is arranged in the rhombic groove; a base covering plate has a V-shaped guiding groove; the braking element has a pin shaft connected with a pull rod. The utility model is characterized in that the utility model belongs to a unicity structure, and each safety clamp has one base, one couple of brake elements, and one group of elastic elements; furthermore, the utility model has compact structure, and small size; the utility model can be made into instant type safety clamps or progressive type safety clamps; the utility model also has the advantages of two-way lifter brake, convenient installation, etc.

Description

Two-way elevator brake safety tongs

The utility model relates to a kind of two-way elevator brake safety tongs that is used on the elevator, belong to the elevator technology field.

The safety tongs that uses on the present elevator; no matter it is a wink fashoined or gradual; be one-way brake mostly; in order to satisfy new elevator technology standard; the bi-directional braking safety tongs that sectional construction occurred; it is that one-way brake safety tongs with two groups of absolute construction is contained in same the lift car; they each a direction is played the overspeed protection effect; this knockdown two-way progressive safety gear; although its pedestal (caliper) can be one; but its in-to-in crux part elastic element (spring) and braking element (voussoir) then are two groups of independently elements, so the volume of safety tongs is just bigger.

The purpose of this utility model is the defective at above-mentioned existence, propose a kind of two-way elevator brake safety tongs, it has compact conformation, and volume is little, both can make instantaneous safety, can make progressive safety gear again, it can be braked on the both direction to elevator.

Technical solution of the present utility model:

Include pedestal and braking element, a rhombus groove is arranged in the pedestal, the braking element that is monolateral anti-diamond shaped is placed in the rhombus groove, has on the cover plate of pedestal to be＜guide groove of shape, and braking element is provided with bearing pin, its cylinder lever connecting rod.

A leaf spring can be set, as elastic element in the braking element.

Advantage of the present utility model:

(1) belongs to the unicity structure, all have only a pedestal (caliper) in every safety tongs, a pair of braking element (voussoir), one group of elastic element;

(2) simple and compact for structure reasonable, the little cost of volume is low, has the bi-directional braking function;

(3) facility is installed, it can be installed on traditional position, be under the car fine strain of millet end under, it does not only change existing lift car shelf structure, and can satisfy among the elevator hoistways figure regulation requirement to pit depth, and can reduce the cost of elevator complete machine greatly, it also can be installed in the groove of car straight beam in addition, need not car frame is done big modification, and can satisfy existing elevator hoistways construction layout drawing standard, thereby make elevator hoistways that utilization built up and to the possibility that is transformed into of elevator is installed.

Accompanying drawing 1 is an example structure scheme drawing of the present utility model, also is the example structure scheme drawing of instantaneous formula bidirectional safety tongs.

Accompanying drawing 2,3 is respectively that braking element makes progress, the view when moving down

Accompanying drawing 4,5 is respectively the contour structures scheme drawing after the utility model is loaded onto cover plate 4, peg

Accompanying drawing 6 is to add the structural representation (the enforcement illustration of gradual bidirectional safety tongs) of putting elastic element in the braking element

Accompanying drawing 7 is Fig. 6 elevator working state schematic representations when descending

Among the figure 1 is pedestal, the 2nd, braking element, the 3rd, and bearing pin, the 4th, cover plate, the 5th, pull bar, 6-1,6-2,6-3,6-4,6-5 constitute a composite brakig element (compound voussoir), and wherein 6-1 is that the matrix of compound voussoir, the supporting mass that 6-2 is spring, simple flat plate spring, the 6-4 that 6-3 is a kind of square-section are that interior voussoir, 6-5 are catch.

Further describe the art solution of pulling out of the present utility model below in conjunction with accompanying drawing:

Contrast Fig. 1, pedestal 1 has a rhombus groove, the braking element 2 that is monolateral diamond shaped is placed in the rhombus groove in the pedestal 1, a rhombus groove and a braking element 2 that is monolateral diamond shaped are respectively the combinations of two dovetail grooves and two trapezoid blocks, significantly reduced volume like this, make and the compact conformation, simple, rationally of safety tongs also reduced productive costs, convenient installation; Have on the cover plate 4 and be＜guide groove of shape, it can play guiding to the motion of braking element 2, but braking element 2 is provided with bearing pin 3 cylinder lever connecting rods 5, the 2 upper and lower motions of pulling braking element.

Contrast Fig. 2,3 when carrying on the pull bar 5 or push away down, makes braking element 2 slippage up or down by bearing pin 3, and realization is to descending, the up braking of lift car.

Contrast Fig. 6,7 is provided with a leaf spring 6-3 in the braking element 2, up or down in the slipping, interior voussoir 6-4 will force spring 6-3 flexural deformation, make safety tongs obtain constant gripping power at compound voussoir.Realize gradual braking.

Claims

1, two-way elevator brake safety tongs, include pedestal (1) and braking element (2), it is characterized in that a rhombus groove is arranged in the pedestal (1), the braking element (2) that is monolateral diamond shaped is placed in the rhombus groove, have one on the cover plate (4) of pedestal (1) to be＜guide groove of shape, establish bearing pin (3) on the braking element (2), its cylinder lever connecting rod (5).

2, two-way elevator brake safety tongs according to claim 1 is characterized in that in braking element (2) leaf spring (6-3) being set.