CN2580987Y

CN2580987Y - Differential automatic fall preventing device

Info

Publication number: CN2580987Y
Application number: CN 02279468
Authority: CN
Inventors: 刘鹏云; 李昆澜; 张海军
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-30
Filing date: 2002-09-30
Publication date: 2003-10-22
Anticipated expiration: 2012-09-30

Abstract

The utility model relates to a differential automatic anti-falling device for preventing climbing operation staff from accidentally falling. The utility model is mainly composed of casings 1, 2, a main shaft 3, a wind spring 4, a wire cable 5, a rotary wheel 6, a braking tooth 7 and a reset tension spring 8, wherein, the wind spring 4 is arranged in an inner cavity of the rotary wheel 6, one end of the wind spring 4 is fixed in a narrow gap 12 at the lateral surface of the main shaft 3, and the other end of the wind spring is fixed on the inner wall of the rotary wheel 6; the wire cable 5 is arranged in a groove at the outer margin of the rotary wheel 6; the main shaft 3 penetrates through central holes at the two lateral surfaces of the rotary wheel 6, and is fixed inside the casings 1, 2; copper bushes 9, 10 are inlaid and arranged in the central holes at the two lateral surfaces of the rotary wheel 6. A rotating shaft 11 penetrates through holes on the upper and the lower surfaces of the braking tooth 7, and is fixed inside the casings 1, 2. The braking tooth 7 is a U-shaped braking tooth, the upper surface and the lower surface of the braking tooth are symmetrical, and the left and the right of a signal side of the braking tooth are symmetrical. The braking tooth in the structure of double U shapes and the rotary wheel are formed into a braking part, the braking tooth automatically acts according to speed differences of the rotary wheel, the anti-falling device brakes when the pulling out speed of the wire cable of the anti-falling device is not smaller than one meter per second, and personal safety is ensured.

Description

The automatic catching device of differential

(1) technical field: the utility model relates to a kind of human body anti-falling protection device, the automatic catching device of particularly a kind of differential, and it is the security protection utensil of anti-ascend operation personnel accidental falling.

(2) background technology: at present, the catching device of existing various ways, all solved ascend operation personnel's fall arrest problem, with regard to prior art, no matter be to adopt " bearing arrangement that axle sleeve is conjuncted " or adopt " click " structure, all there is certain defective,, causes catching device forced brake or braking ratio can not reach 100% etc. as scope of activities deficiency, the modulus of ratchet and the modulus disunity of ratchet that catching device provides.

(3) summary of the invention: the purpose of this utility model is the automatic catching device of developing at the defective of prior art of a kind of differential, it is to adopt the brake tooth of two " U " shape structures and runner to form brake portion, brake tooth is looked the speed discrepancy auto-action of runner, when the steel wire rope of guaranteeing catching device is pulled out speed 〉=1 meter per second, personal safety is guaranteed in the catching device braking.The main composition of the automatic catching device of differential is by

shell

1,2, main shaft 3, and clockwork spring 4, steel wire rope 5, runner 6, compositions such as brake tooth 7 and reset tension spring 8, brake portion is made up of with two " U " shape brake tooths 7 brake tooth of runner 6 both sides outer rims.Brake tooth 7 is the above and below symmetry, and single face is " U " shape brake tooth of left and right symmetry.Turning cylinder 11 passes the hole of brake tooth 7 above and below and is fixed on the shell 1,2.This product structure is simple, easy to use, and is safe and reliable, and good looking appearance is the substitute products of existing product.

(4) description of drawings:

Fig. 1 is a structure cutaway view of the present utility model.

Fig. 2 is the structural representation of the utility model brake portion.

Fig. 3 is the right view of the utility model Fig. 4.

Fig. 4 is the front view of the utility model brake tooth.

Fig. 5 is the left view of the utility model Fig. 4.

Fig. 6 is the structural representation of the utility model main shaft.

(5) specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, 2.The automatic catching device of differential is mainly by

shell

1,2, main shaft 3, clockwork spring 4, steel wire rope 5, runner 6, compositions such as brake tooth 7 and reset tension spring 8.Brake portion is made up of with two " U " shape brake tooths the brake tooth of runner both sides outer rim.Referring to Fig. 3,4,5, brake tooth 7 is " U " shape of above and below symmetry, and single face is " U " shape brake tooth of left and right symmetry, and turning cylinder 11 passes the hole of brake tooth 7 above and below and is fixed on the inboard of shell 1,2.Shown in Fig. 1,6, an end of clockwork spring 4 is fixed on the narrow of main shaft 3 sides and meets in 12, and the other end is fixed on the inwall of runner 6, and steel wire rope 5 is installed in the groove of runner 6 outer rims.Main shaft 3 passes the centre bore of runner 6 two sides, is fixed on the inboard of

shell

1,2; Insert

copper sheathing

9,10 in the centre bore of runner 6 two sides.As shown in Figure 1, 2.After the utility model assembling was finished,

shell

1,2 upper ends were equipped with dropping-proof hook respectively through the lower end of nylon rope, steel wire rope 5, and the upper end hook is fixed on the structure-steel framing of top, operating point, and the lower end hangs on staff's the safety belt.When the staff was mobile near the operating point, steel wire rope 5 was to pull out less than the speed of 1 meter per second, and brake tooth 7 discharges runner 6; Runner 6 rotates clockwork spring 4 compressions, makes steel wire rope 5 be in the state of tightening up all the time, steel wire rope 5 free folding and unfoldings; In a single day the staff slips and falls, and the speed of pulling out of steel wire rope 5 is greater than 1 meter per second, and runner 6 drives brake tooth 7 actions, is drawn out in 10 centimetres at steel wire rope 5, and with runner 6 brakings, steel wire rope 5 is stopped, and the staff can not be fallen.After dangerous the eliminating, it is stressed to remove steel wire rope 5, and under the effect of clockwork spring 4, runner 6 counter-rotation reset brake tooth 7, discharges runner 6, and catching device returns to normal operating conditions again.

Claims

1, the automatic catching device of a kind of differential, its main composition is shell (1), (2), main shaft (3), clockwork spring (4), steel wire rope (5), runner (6), brake tooth (7) and reset tension spring (8), it is characterized in that: clockwork spring (4) is installed in the inner chamber of runner (6), and an end of clockwork spring (4) is fixed in narrow the meeting (12) of main shaft (3) side, and the other end is fixed on the inwall of runner (6); Steel wire rope (5) is installed in the groove of runner (6) outer rim, and main shaft (3) passes the centre bore of runner (6) two sides and is fixed on the inboard of shell (1), (2); Be installed with copper sheathing (9), (10) in the centre bore of runner (6) two sides, turning cylinder (11) passes the hole of brake tooth (7) above and below and is fixed on the inboard of shell (1), (2).

2, the automatic catching device of differential according to claim 1 is characterized in that: brake tooth (7) is the above and below symmetry, and single face is " U " shape brake tooth of left and right symmetry.