CN2373548Y

CN2373548Y - Anti-skid device for rolling door

Info

Publication number: CN2373548Y
Application number: CN 99209951
Authority: CN
Inventors: 洪阿炳
Original assignee: JIELONG ROLLING ELECTROMECHANICAL FACTORY ZHANGZHOU CITY
Current assignee: JIELONG ROLLING ELECTROMECHANICAL FACTORY ZHANGZHOU CITY
Priority date: 1999-05-18
Filing date: 1999-05-18
Publication date: 2000-04-12
Anticipated expiration: 2009-05-18

Abstract

The utility model discloses an anti-skid device for an electric rolling door, which comprises a swing arm, a pin, and a rolling wheel, wherein, the pin and the rolling wheel are arranged on the swing arm; the utility model is arranged between two chain wheels of the electric rolling door, a rolling drum can be prevented from rotation when chains of the rolling door are broken, the rolling door can not be rapidly fallen down with no adumbration, and therefore, the safety of pedestrians and property under a curtain of the rolling door can be ensured. The utility model has the advantages of reasonable and simple structure, safety, and effectiveness.

Description

The shoe of rolling door

The utility model relates to a kind of shoe, especially for the shoe of electric rolling door.

A kind of electric rolling door is in reel one side a hinge wheel to be housed, during machine operation, the minor sprocket that is installed in motor one side is passed to hinge wheel by roller chain with power, and hinge wheel rotates and drives reel and also rotate, and makes the curtain door that twists on the reel rise or descend.Under the state that roll at the curtain door, chain bears a heavy burden, when chain ruptured suddenly, reel was out of hand, and the gravity that the curtain door is huge glides the curtain door rapidly, thereby causes great property loss and life danger.

The purpose of this utility model is to provide a kind of safe shoe for electric rolling door when chain ruptures.

Shoe of the present utility model comprises swing arm and is installed in Xiao and roller in the swing arm that described swing arm is for having certain thickness rectangular, and an installing hole is respectively left at its two ends, and wherein an end has a dog of stretching; Then by two-layer formation up and down, the centre is empty to the other end, pass installing hole and roller is placed two-layer centre by Xiao, and Xiao's two ends rivet clasp, roller is rotatable.

The dog and the swing arm itself of swing arm one end are an angle, angle is between the 30-330 degree, and best angle is 120 degree, and the tooth root of hinge wheel is corresponding on the shape of dog, size and the reel, the modulus that is dog equates that with the modulus of hinge wheel the protrusion length of dog is longer than the degree of depth of hinge wheel tooth root.

The two ends of described swing arm are circular arc, and mounting hole site is in the circle centre position of circular arc, and swing arm is the raw material global formation with the pig iron.

The utility model shoe is rational in infrastructure, simple, and is easy for installation, has no progeny at the chain of electric rolling door, can stop effectively that the hinge wheel of reel one side rotates, and makes curtain Men Buhui deadweight tenesmus, guarantees the safety of pedestrian and property under the door curtain.

Fig. 1 is the structural representation of the swing arm of the utility model shoe;

Fig. 2 is the A-A sectional view of the utility model shoe and Fig. 1;

Fig. 3 is the working state figure of the utility model shoe;

Wherein mark 1 is that swing arm, 2 is that Xiao, 3 is that roller, 4 is that dog, 5 is that installing hole, 6 is that installing hole, 11 is that minor sprocket, 12 is that roller chain, 13 is that hinge wheel, 14 is that curtain door, A1 are state, A2 this shoe the duty chain rupture after of shoe when the electric rolling door operate as normal among the figure.

As seen from Figure 1, Figure 2, this shoe comprises swing arm and is installed in Xiao and roller in the swing arm, the swing arm two ends are circular arc, installing hole is at the circle centre position of circular arc, one end circular arc of swing arm has a dog that stretches out outward, and the other end of swing arm passes installing hole 6 by Xiao, and roller is placed in the middle of the swing arm, Xiao's two ends rivet clasp, roller is free to rotate.As shown in Figure 3, passing installing hole 5 with Xiao is installed in shoe between size two sprocket wheels of electric rolling door, be close to hinge wheel, be positioned at the below of oblique angle, hinge wheel center 30 degree, the roller of swing arm right-hand member drops on and makes shoe keep balance on the roller chain.When machine operation, chain drive, roller is done and is relatively rotated along with chain, and the dog of swing arm left end does not contact with the gear teeth of hinge wheel, is the A1 state.Fall behind in case chain is disconnected, because roller loses to support and is rotated down, the swing arm left end upwards rotates the tooth root of dog being sent into hinge wheel, stopped that hinge wheel rotates because of the downward gravity of curtain door, because dog is longer than the tooth root degree of depth of hinge wheel, so dog snaps in the tooth root of hinge wheel and can not rotate again, reaches anti-skidding purpose with this, is the A2 state.

Claims

1, a kind of shoe that is used for electric rolling door, it comprises swing arm and is installed in Xiao and roller in the swing arm, it is characterized in that: described swing arm (1) is for having certain thickness rectangular, and an installing hole (5) (6) is respectively left at its two ends, and wherein an end has a dog of stretching (4); Then by two-layer formation up and down, the centre is empty to the other end, pass installing hole (6) and roller (3) is placed two-layer centre by Xiao (2), and Xiao's two ends rivet clasp, roller is rotatable.

2, shoe as claimed in claim 1 is characterized in that: the dog (4) of swing arm one end is an angle with swing arm itself, and angle is between the 30-330 degree, and best angle is 120 degree; The tooth root of hinge wheel (13) is corresponding on the shape of dog, size and the reel, and promptly the modulus of dog equates with the modulus of hinge wheel, and the protrusion length of dog is longer than the degree of depth of hinge wheel tooth root.

3, shoe as claimed in claim 1 is characterized in that: the two ends of described swing arm are circular arc, and installing hole (5) (6) is positioned at the circle centre position of circular arc, and swing arm is the raw material global formation with the pig iron.