CN2444924Y

CN2444924Y - Safety device for elavater

Info

Publication number: CN2444924Y
Application number: CN 00221914
Authority: CN
Inventors: 盛嘉勋
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-27
Filing date: 2000-09-27
Publication date: 2001-08-29
Anticipated expiration: 2010-09-27

Abstract

The utility model relates to a safety gear for elevators. The utility model is composed of a gear seat, a wedge block, and a baffle, wherein, the core position of the gear seat has a sliding groove; the side sliding surface of the sliding groove is a slope corresponding to the side sliding surface of the wedge block, and the wedge block has grooves; the baffler is arranged at the gear seat, wherein, the edge of the baffler has flanges or flanging which are embedded in the grooves of the wedge block; the upper and the lower ends of the gear seat are connecting parts, and can be respectively connected with a car frame and a guide shoe; the core position and the connecting parts are integrated together, and the whole gear seat is of a whole tongs holder body is of a flat structure. The utility model has the advantages of bi-directional braking function, small size, low cost, stable performance, and simple and reasonable structure.

Description

The elevator safety tongs

The utility model relates to a kind of elevator safety tongs, belong to the elevator technology field.

Prior art, its structure is by the pincers pedestal, voussoir, baffle plate is formed, the core position of wherein clamping pedestal is a cube that has chute, size on its thickness direction is generally less than the size on its width and the short transverse, whole pincers pedestal is exactly a cube, its lateral sliding face of chute in above-mentioned is an inclined-plane, it is corresponding with the lateral sliding face on the voussoir, have groove on the voussoir, baffle plate is installed on the pincers pedestal, is provided with flange or flanging on it is distolateral, on the pincers pedestal, following two ends are point of attachments of safety tongs, connection holes is arranged on it, can be respectively with car frame and lead boots and link, its major defect is its function singleness, can only one-way brake, next is that its volume is bigger, the cost height.

The purpose of this utility model is to propose a kind of bi-directional braking function that has at above-mentioned existence one defective, and its volume elevator safety tongs more much smaller than prior art.

Technical solution of the present utility model:

By the pincers pedestal, voussoir, baffle plate is formed, the core bit strip that wherein clamps pedestal has chute, the lateral sliding face of chute is an inclined-plane, it is corresponding with the lateral sliding face on the voussoir, have groove on the voussoir, baffle plate is installed on the pincers pedestal, its distolateral flange or flanging of being provided with, they are stuck in the groove of voussoir, on the pincers pedestal, following two ends are point of attachments of safety tongs, can be respectively with car frame and lead boots and link, the core position of pincers pedestal and on, following two point of attachments overlap and are one, be far smaller than size on its width and the thickness direction in the size on its short transverse, whole pincers pedestal is flat tabular.

Advantage of the present utility model:

Have the bi-directional braking function, its volume is little, cost is low, stable performance, and is simple and reasonable for structure.

Accompanying drawing 1 is the prior art constructions scheme drawing.

Accompanying drawing 2 is bi-directional braking instantaneous safety example structure scheme drawings

Accompanying drawing 2-1 is the pincers base structure scheme drawing among Fig. 2

Accompanying drawing 3 is bi-directional braking progressive safety gear example structure scheme drawings

Accompanying drawing 3-1 is the wedge structure scheme drawing among Fig. 3

Accompanying drawing 4 is one-way brake instantaneous safety example structure scheme drawings

Accompanying drawing 4-1 is the pincers base structure scheme drawing among Fig. 4

Accompanying drawing 5 is one-way brake progressive safety gear example structure scheme drawings

Among the figure 1 is the pincers pedestals, the 2nd, voussoir, its slippage in the chute 11 of pincers pedestal 1 side, the 3rd, baffle plate, be the sense of motion, the 4th that is used for limiting voussoir 2, guide finger, it is fixed on the pincers pedestal 1, is used for guiding, the 5th to baffle plate 3, spring be used for baffle plate 3 to pincers pedestal lateral direction strain, the 6th, lifting rod, the 7th, guide rail, the 8th, monocline face, the 9th, positive stop lug boss, the 10th, double inclined plane, the 11st, chute, the 12nd, core position, the 13rd, point of attachment, the 14th, slipping area, the 15th, connection holes.

Further describe technical solution of the present utility model below in conjunction with accompanying drawing:

By pincers pedestal 1, voussoir 2, baffle plate 3 is formed, the core position 12 of wherein clamping pedestal 1 is one and has chute 11 and be flat tabular square body, lateral sliding face 14 at chute 11 is inclined-planes, it is corresponding with the lateral sliding face on the voussoir 2, have groove on the voussoir 2, baffle plate 3 is installed on the pincers pedestal 1, its distolateral flange or flanging of being provided with, they are stuck in the groove of voussoir 2, voussoir 2 and the lateral sliding face 14 that clamps in the pedestal 1 are adjacent to, keep the necessary gap between voussoir 2 and the guide rail 7, on the pincers pedestal 1, the point of attachment 13 that following two ends are safety tongss, connection holes 15 is arranged on it, can be respectively with car frame and lead boots and link, safety tongs is greatly reduced in the size of short transverse, make the pincers core position 12 of pedestal 1 and last, following two point of attachments 13 overlap and are one, size is far smaller than its width on its short transverse, size on the thickness direction, whole pincers pedestal 1 is flat tabular, and it plays supporting mass and elastomeric double action simultaneously.

The lateral sliding face 14 of chute 11 can be a unidirectional inclined-plane 8, also the double inclined plane 10 that can be made up of two faces of opposite sense bevelled.

With the lateral sliding face on the lateral sliding face 14 corresponding voussoirs 2 of chute 11 can be a unidirectional inclined-plane, the also double inclined plane that can form by two faces of opposite sense bevelled.

The boss 9 of can limiting at the terminal of the voussoir 2 with single mitre or at the two ends of the voussoir 2 with inclined in two-way face is with the stroke of restriction voussoir 2 slippages.

Baffle plate 3 that can transverse slip is adjacent to the voussoir 2 and the chute 11 of pincers pedestal 1 by the pulling force of spring 5.

The utlity model has single, double to braking function, both can do single, double to the braking instantaneous safety, can do again single, double to the braking progressive safety gear, its volume is little, cost is low, stable performance, and is simple and reasonable for structure.

Contrast Fig. 2, Fig. 2-1, on pincers pedestal 1 and the same plane, connection holes 15 places on it, connect car frame respectively and lead boots, have chute 11 on the pincers pedestal 1, the double inclined plane 10 that its lateral sliding face 14 is made up of two faces of opposite sense bevelled, the double inclined plane that the lateral sliding face of voussoir 2 also is made up of two faces of opposite sense bevelled, be complementary with the double inclined plane on the pincers pedestal, when drawing up or down under the effect of voussoir 2 at velocity limiter when pushing away, voussoir 2 all can clamp guide rail 7 and brake, when voussoir 2 slippage up or down, safety tongs stops car to exceed the speed limit (falling) downwards or upwards exceeds the speed limit (rushing to summit), realizes the instantaneous formula braking of elevator.

Contrast Fig. 3, Fig. 3-1, the two ends of voussoir 2 boss 9 of limiting, limiting the distance of voussoir slippage 2 about, thereby the tension (deformation force) that pincers pedestal 1 is subjected to is steady state value, the gradual braking of realization elevator.

Contrast Fig. 4, Fig. 4-1, it is that the lateral sliding face of the lateral sliding face of chute and voussoir is all made single inclined-plane, is the one-way brake instantaneous safety.

Contrast Fig. 5, it is that the lateral sliding face of the lateral sliding face of chute and voussoir is all made single inclined-plane, is the one-way brake progressive safety gear.

Claims

1, the elevator safety tongs, by pincers pedestal (1), voussoir (2), baffle plate (3) is formed, the core position (12) of wherein clamping pedestal (1) is to have chute (11), the lateral sliding face (14) of chute (11) is corresponding with the lateral sliding face on the voussoir (2), voussoir has groove on (2), baffle plate (3) is installed on the pincers pedestals (1), its distolateral flange or flanging of being provided with, they are stuck in the groove of voussoir (2), on the pincers pedestals (1), the point of attachment (13) that following two ends are safety tongss, can be respectively with car frame and lead boots and link, it is characterized in that the core position (12) of clamping pedestal (1) reaches, following two point of attachments (13) overlap and are one, be far smaller than size on its width and the thickness direction in the size on its short transverse, whole pincers pedestal is flat tabular.

2, elevator safety tongs according to claim 1, the lateral sliding face (14) that it is characterized in that chute (11) can be a unidirectional inclined-plane (8), also the double inclined plane (10) that can be made up of two faces of opposite sense bevelled.

3, elevator safety tongs according to claim 1, it is characterized in that the lateral sliding face on the corresponding voussoir of lateral sliding face (14) (2) with chute (11) can be a unidirectional inclined-plane, also the double inclined plane that can form by two faces of opposite sense bevelled.

4, elevator safety tongs according to claim 1 is characterized in that having the terminal of the voussoir of single mitre (2) or the boss (9) of can limiting at the two ends of the voussoir with inclined in two-way face (2).