CN202369224U

CN202369224U - Safety braking device for elevator car

Info

Publication number: CN202369224U
Application number: CN201120530715XU
Authority: CN
Inventors: 张乾康
Original assignee: ZHEJIANG FEIYA ELEVATOR CO Ltd
Current assignee: ZHEJIANG FEIYA ELEVATOR CO Ltd
Priority date: 2011-12-04
Filing date: 2011-12-04
Publication date: 2012-08-08
Anticipated expiration: 2021-12-04

Abstract

The utility model discloses a safety braking device for an elevator car. The safety braking device for the elevator car comprises four groups of safety gears and a fixing rack, wherein the left side of the fixing rack is provided with two groups of safety gears which are opposite to two guide rails arranged at the left side of the elevator car, and the two groups of safety gears arranged at the left side of the fixing rack are connected by a first handle shaft; the right side of the fixing rack is provided with two groups of safety gears which are opposite to two guide rails arranged at the right side of the elevator car, and the two groups of safety gears arranged at the right side of the fixing rack are connected by a second handle shaft; and at least one group of connecting rod mechanisms capable of allowing the two handle shafts to synchronously and reversely rotate is arranged between the first handle shaft and the second handle shaft, and a rope head handle connected with a speed controller in an elevator is arranged on the second handle shaft. The safety braking device for the elevator car has the advantages that the four safety gears make synchronized movement to clamp the guide rails, so that the car stops smoothly and safely.

Description

A kind of lift car is used safety catch

Technical field

The utility model relates to a kind of lift car and uses safety catch.

Background technology

Elevator safety gear is a kind of lift car maintenance quiescence out of service that can make downward operation, and can be clamped in a kind of mechanical safety device on the guide rail.Safety tongs is when the downward running velocity of lift car surpasses specified value, and speed controller action back causes the safety tongs action through the leverage of steel rope pulling safety tongs, and car is clamped on the guide rail, prevents that car from falling.

A general elevator all only is equipped with one group of (two) car guide rail, thereby also only is furnished with one group of (two) safety tongs.Require two safety tongss ability synchronization actions when safety tongs works, make car keep on even keel to be clamped on the guide rail basically, otherwise will cause the car clamping incessantly, or damaged after causing car inclination.

After lift car increased, elevator was equipped with two groups of (four) car guide rails, if on car, use two groups of independent safety tongss, was difficult to then guarantee that two groups of safety tongss of glancing impact are synchronous, made car produce to rock or tilted and damage.

The utility model content

The purpose of the utility model is to provide a kind of lift car to use safety catch, can effectively solve the existing problem of using the car safety braking of two groups of car guide rails.

In order to solve the problems of the technologies described above; The utility model is realized through following technical scheme: a kind of lift car is used safety catch; Comprise four groups of safety tongss, fixed mount; It is corresponding with two guide rails in lift car left side that said fixed mount left side is provided with two groups of safety tongss; Two groups of safety tongss in said fixed mount left side connect through the first handle axle, and it is corresponding with two guide rails on lift car right side that said fixed mount right side is provided with two groups of safety tongss, and two groups of safety tongss on said fixed mount right side connect through the second handle axle; Be provided with at least one group between the said first handle axle and the second handle axle and make two handle axle synchronous backward rotation linkage assemblies, the said second handle axle is provided with elevator medium velocity controller bonded assembly fag end shakes hands.

Preferably; Said connecting rod mechanism comprises connecting rod, first adapter plate, second adapter plate, and the lower end of said first adapter plate is fixed on the first handle axle, the upper end of said first adapter plate and the switching of the left end of connecting rod; The lower end switching of the right-hand member of said connecting rod and second adapter plate; The upper end of said second adapter plate be fixed on the second handle axle on, the axis normal of said first adapter plate and the first handle axle, said second adapter plate also with the axis normal of second handle spool.

Preferably, said fixed mount is provided with the 3rd adapter plate, and said connecting rod wore the 3rd adapter plate; The connecting rod in said the 3rd adapter plate left side is provided with fixed cover; Be with stage clip on the said connecting rod, the left end of said stage clip withstands on the fixed cover, and the right-hand member of said stage clip withstands on the 3rd adapter plate; Speed controller can drive the safety tongs returning quickly by connecting rod after assigning release command again.

Preferably, the connecting rod on said the 3rd adapter plate right side is provided with locating bush; Preventing that stage clip return elastic force is excessive causes link work excessively and influence is used next time.

Preferably, said connecting rod mechanism has two groups, and said two groups of connecting rod mechanisms are symmetrical set along the fixed mount line of centers; Guarantee that further two handle axle synchronous backwards rotate.

Compared with prior art, the utility model has the advantages that: four safety tongss are synchronized with the movement and clamp guide rail, make steadily stopping of safety of car.

Description of drawings

Fig. 1 is the structural representation of a kind of lift car of the utility model with safety catch;

Fig. 2 is the cutaway view of A-A among Fig. 1.

The specific embodiment

Consult Fig. 1, Fig. 2 and be the embodiment of a kind of lift car of the utility model with safety catch, a kind of lift car is used safety catch, comprises four groups of safety tongss 1, fixed mount 2; It is corresponding with two guide rails 3 in lift car left side that said fixed mount 2 left sides are provided with two groups of safety tongss 1; Two groups of safety tongss 1 in said fixed mount 2 left sides connect through the first handle axle 4, and it is corresponding with two guide rails 3 on lift car right side that said fixed mount 2 right sides are provided with two groups of safety tongss 1, and two groups of safety tongss 1 on said fixed mount 2 right sides connect through the second handle axle 5; Be provided with at least one group between the said first handle axle, the 4 and second handle axle 5 and make two handle axle synchronous backward pivot link 7 mechanisms; The said second handle axle 5 is provided with and elevator medium velocity controller bonded assembly fag end handle 6, and said connecting rod 7 mechanisms comprise connecting rod 7, first adapter plate 8, second adapter plate 9, and the lower end of said first adapter plate 8 is fixed on the first handle axle 4; The left end switching of the upper end of said first adapter plate 8 and connecting rod 7; The switching of the lower end of the right-hand member of said connecting rod 7 and second adapter plate 9, the upper end of said second adapter plate 9 be fixed on the second handle axle 5 on, the axis normal of said first adapter plate 8 and first handle spools 4; Said second adapter plate 9 also with the axis normal of the second handle axle 5; Said fixed mount 2 is provided with the 3rd adapter plate 10, and said connecting rod 7 wore the 3rd adapter plate 10, and the connecting rod 7 in said the 3rd adapter plate 10 left sides is provided with fixed cover 11; Be with stage clip 12 on the said connecting rod 7; The left end of said stage clip 12 withstands on the fixed cover 11, and the right-hand member of said stage clip 12 withstands on the 3rd adapter plate 10, and the connecting rod 7 on said the 3rd adapter plate 10 right sides is provided with locating bush 13; Said connecting rod 7 mechanisms have two groups, and said two groups of connecting rod 7 mechanisms are symmetrical set along fixed mount 2 line of centerss.

When the elevator descending speed is too fast; Speed control unit startup on the elevator, speed control unit shakes hands 6 through steel rope pulling fag end, and fag end is shaken hands 5 commentaries on classics of 6 drives, the second handle axle together; Drive the first handle axle 4 and rotate through second adapter plate 9, connecting rod 7, first adapter plate 8 simultaneously; Make 1 while of four safety tongss and four guide rails 3 of lift car both sides act on, thereby the speed of lift car is lowered, guarantee passenger safety.

The above is merely the specific embodiment of the utility model; But the technical characterictic of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.

Claims

1. a lift car is used safety catch; It is characterized in that: comprise four groups of safety tongss (1), fixed mount (2); It is corresponding with two guide rails (3) in lift car left side that said fixed mount (2) left side is provided with two groups of safety tongss (1); Two groups of safety tongss (1) in said fixed mount (2) left side connect through the first handle axle (4); It is corresponding with two guide rails (3) on lift car right side that said fixed mount (2) right side is provided with two groups of safety tongss (1); Two groups of safety tongss (1) on said fixed mount (2) right side connect through the second handle axle (5), are provided with at least one group between the said first handle axle (4) and the second handle axle (5) and make two handle axle synchronous backward pivot link (7) mechanisms, and the said second handle axle (5) is provided with and elevator medium velocity controller bonded assembly fag end handle (6).

2. a kind of lift car as claimed in claim 1 is used safety catch; It is characterized in that: said connecting rod (7) mechanism comprises connecting rod (7), first adapter plate (8), second adapter plate (9); The lower end of said first adapter plate (8) is fixed on the first handle axle (4); The switching of the left end of the upper end of said first adapter plate (8) and connecting rod (7), the lower end switching of the right-hand member of said connecting rod (7) and second adapter plate (9), the upper end of said second adapter plate (9) be fixed on second handle spool (5) on; The axis normal of said first adapter plate (8) and the first handle axle (4), said second adapter plate (9) also with the axis normal of the second handle axle (5).

3. a kind of lift car as claimed in claim 2 is used safety catch; It is characterized in that: said fixed mount (2) is provided with the 3rd adapter plate (10); Said connecting rod (7) wore the 3rd adapter plate (10), and the connecting rod (7) in said the 3rd adapter plate (10) left side is provided with fixed cover (11), is with stage clip (12) on the said connecting rod (7); The left end of said stage clip (12) withstands on the fixed cover (11), and the right-hand member of said stage clip (12) withstands on the 3rd adapter plate (10).

4. a kind of lift car as claimed in claim 3 is used safety catch, it is characterized in that: the connecting rod (7) on said the 3rd adapter plate (10) right side is provided with locating bush (13).

5. use safety catch like each described a kind of lift car in the claim 1 to 4, it is characterized in that: said connecting rod (7) mechanism has two groups, and said two groups of connecting rods (7) mechanism is symmetrical set along fixed mount (2) line of centers.