CN2408093Y

CN2408093Y - Safety door

Info

Publication number: CN2408093Y
Application number: CN 99258353
Authority: CN
Inventors: 车守强; 颜晓; 孟繁英
Original assignee: Zoucheng Zhongmei Jinggong Technology Development Co ltd
Current assignee: Zoucheng Zhongmei Jinggong Technology Development Co ltd; Zhejiang Jinggong Science and Technology Co Ltd
Priority date: 1999-12-20
Filing date: 1999-12-20
Publication date: 2000-11-29
Anticipated expiration: 2009-12-20

Abstract

The utility model relates to a safety door for mine shaft hoisting systems. The utility model is characterized in that both sides of a light safety door are provided with a plurality of hook heads. When the safety door is closed, the fixed structure just corresponding to the position of the hook head is provided with hook grooves. The safety doors are designed according to rigidity principles. When the utility model is knocked by people, empty cars, and small-quality objects, the deformation of the utility model which affects usage can not occur. Then, the safety doors are designed by intensity principles. When the safety doors are knocked by heavy cars and large-quality objects, the safety doors move forwards. The hook heads are embedded in the hook grooves on the fixed structures. The safety doors and the fixed structures become one body. Collision energy is absorbed by the plastic deformation of the safety-door materials. The maximum impulsive force which is caused by collision can not exceed the strength limit of the safety-door materials. Compared with the prior art, the utility model has the advantages of the light weight of the safety doors, good barrier effect against heavy cars, safety, low failure rate, flexible structural forms and flexible drive modes.

Description

Safety door

The utility model is a kind of vertical shaft for mine elevator system safety door.

In the vertical shaft hoisting mode, the lifting container cage is in operation or when not stopping putting in place, needs with safety door well head up and down to be protected, and crashes in the well so that anti-personnel, mine car or other object are accidental, causes unnecessary loss.

Present known safety door form has: cylinder bar lifting slippage fence gate-type; Connecting rod opens and closes folding gate-type, barrier linear electric motors left and right sides parallel-moving type etc.Its total shortcoming is, safety door weight is big, and the fault rate height stops the loaded vehicle weak effect.

Based on the prior art existing problems, the purpose of this utility model provides a kind of lightweight construction, reliability height, the effective safety door of keeping off a car.

The purpose of this utility model can realize by following structure:

With plastic deformation ability the material of certain rigidity is arranged again by force, make a light-duty safety door, the gib head of some is established on the safety door both sides, establishes the hook groove on the fixed sturcture of gib head position when safety door is closed.The principle of design of intrinsic safety air cock is by rigidity principle design safety door, to make it under the collision of personnel, empty wagons, little mass objects, the distortion that can not exert an influence and use; Then by intensity principle design safety door, make safety door under the collision of loaded vehicle, big mass objects, the safety door reach, gib head embeds the hook groove on the fixed sturcture on it, make safety door and fixed sturcture become an integral body, plastic deformation by the safety door material absorbs collision energy, but the maximum impulse force that collision causes should be no more than the safety door strength of material limit.

The utility model has following advantage compared to existing technology:

1, safety door is in light weight;

2, stop that loaded vehicle is effective;

3, safe and reliable, fault rate is low;

4, version and type of drive are flexible.

Can construct various forms of safety doors according to the utility model, do into explanation below with reference to accompanying drawing.

Fig. 1 is the safety door structural representation front elevation of one of the utility model safety door embodiment;

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

Fig. 3 is two the safety door structural representation front elevation of the utility model safety door embodiment;

Fig. 4 is the B-B cutaway view of Fig. 3;

Fig. 5 is three the safety door structural representation front elevation of the utility model safety door embodiment;

Fig. 6 is the C-C cutaway view of Fig. 5;

Fig. 7 is four the safety door structural representation front elevation of the utility model safety door embodiment;

Fig. 8 is the birds-eye view of Fig. 7.

Wherein: the 1-head roll, the 2-steel rope, 2.1-steel rope stretching device, the 3-cylinder that alters course, 4-left and right sides turnbuckle, the 5-beam, the 6-roller, 7-hangs, the 8-fixed sturcture, 8.1-hook groove, the 9-safety door, 9, the 1-gib head, the 10-cushion rubber, the 11-position transduser, 12-rotates suspension, the 13-limiting block, the rotating shaft of 14-safety door, fan safety door rotating shaft about 15-, 16-left side fan safety door, 17-right wing safety door, the 18-flexible connecting member, the 19-fixed pedestal, the 20-hinge wheel, the 21-minor sprocket, the 22-chain, A1, B1, C1, the D1-object is to the safety door collision direction.

One of embodiment (Fig. 1, Fig. 2):

The right and left of safety door 9 is provided with some gib heads 9.1, safety door is hung on steel rope 2 by hanging 7, one of them hangs and the steel rope relative fixed, the hook groove 8.1 of gib head on the fixed sturcture 8 on it when safety door is closed, steel rope forms circulation by head roll 1 and changed course cylinder 3, left and right sides turnbuckle 4 is used for the tensioning steel rope, outer power drives the positive and negative rotation of steel rope by head roll, steel rope drives the safety door side-to-side movement and opens and closes passage, safety door is cushioned by cushion rubber 10 in final position, the left and right sides, puts in place about safety door and is detected by position transduser 11.For making the safety door operation more steady, safety door can support with roller 6 and operate on the beam 5.Because drive safety door with flexible steel rope, the slight distortion of safety door can not influence the alerting ability of side-to-side movement, the protection drive system thereby the back steel rope that puts in place about safety door can skid.When safety door was subjected to bigger impact, left and right sides gib head snapped in the hook groove of fixed sturcture, made safety door become as a whole with fixed sturcture, thereby can resist the impact (impact direction is shown in A1) of larger object.

Two (Fig. 3, Fig. 4) of embodiment:

Safety door is made up of left side fan safety door 16, right wing safety door 17, about the fan safety door framework up and down by about fan safety door rotating shaft 15 connect, about the intermediate structure of fan safety door connect by flexible connecting member 18, the fan safety door can not influence relative flexible rotation because of slight distortion about assurance; The fan safety door left side, left side framework connects with fixed pedestal 19 usefulness safety door rotating shafts 14, top, fan safety door framework the right, left side fixed limit retaining 13, and safety door is closed the time limit position retaining that puts in place and is contacted with steel rope, thereby spacing to safety door; Top, right wing safety door the right hangs 12 with rotation and fixes with steel rope, and rotation is hung and guaranteed rotating freely of right wing safety door, is provided with some gib heads on the right of the right wing safety door, the hook groove of gib head on fixed sturcture when safety door is closed; Steel rope forms circulation by head roll 1 and changed course cylinder 3, and left and right sides turnbuckle 4 is used for the tensioning steel rope, and outer power drives the positive and negative rotation of steel rope by head roll, and steel rope drives the safety door rotary folding and opens and closes passage; Safety door is cushioned by cushion rubber in final position, the left and right sides; Put in place about safety door and detect by position transduser 11; Because drive safety door with flexible steel rope, the slight distortion of safety door can not influence the alerting ability of side-to-side movement; Thereby safety door open close put in place the back steel rope can skid the protection drive system; When safety door is subjected to bigger impact (direction shown in B1), gib head snaps in the hook groove of fixed sturcture, makes safety door become as a whole with fixed sturcture, thereby can resist the impact of larger object.This kind mode is specially adapted to the occasion that space, the safety door left and right sides is restricted.

Three (Fig. 5, Fig. 6) of embodiment:

Safety door structure and principle of work and embodiment's is two identical, only safety door drive form difference.Steel rope two ends and fixed sturcture connect, and the steel rope stretching device tensioning of being located on the fixed sturcture is arranged; The rotation of right wing safety door is hung on 12 and is established a sliding sleeve, and sliding sleeve slides along steel rope; Safety door rotating shaft 14 and left side fan safety door relative fixed, outer power driven safety door rotating shaft rotation, left side fan safety door drives the rotation of right wing safety door and moves, thereby opens and closes passage.This kind mode is specially adapted to the occasion that space, the safety door left and right sides is restricted.

Four (Fig. 7, Fig. 8) of embodiment:

Safety door structure and principle of work and embodiment's is two identical, only safety door drive form difference.Safety door rotating shaft 14 and left side fan safety door 16 relative fixed, a hinge wheel 20 is installed in safety door rotating shaft 14 upper ends, hinge wheel and fixed sturcture 19 relative fixed; About fan safety door rotating shaft 15 and right wing safety door 17 relative fixed, about fan safety door rotating shaft 15 tops one minor sprocket 21 is installed, minor sprocket 21 with about fan safety door rotating shaft 15 relative fixed; Big minor sprocket is connected by chain 22, and the hinge wheel radius is the twice of minor sprocket radius approximately.Outer power driven safety door rotating shaft 14 rotations, safety door rotating shaft 14 drives left side fan safety door rotation, hinge wheel is motionless when the fan safety door rotation of a left side, so chain 22 forces minor sprocket 21 retrograde rotations, fan safety door rotating shaft 15 rotations about minor sprocket 21 drives, about fan safety door rotating shaft 15 drive 17 rotations of right wing safety doors and move, when passage is opened about safety door fold.This kind mode is specially adapted to the occasion that space, the safety door left and right sides is restricted.

Claims

1. vertical shaft for mine elevator system safety door, formed by the fixed sturcture of safety door and support fixation guiding safety door and the drive system of opening the closed safe door, it is characterized in that: establish the gib head of some on the safety door both sides, on the fixed sturcture of gib head position when safety door is closed, establish the hook groove.

2. according to the safety door of claim 1, it is characterized in that: safety door is hung on steel rope by suspension, one of them hangs and the steel rope relative fixed, steel rope forms circulation by head roll and changed course cylinder, with left and right sides turnbuckle tensioning steel rope, outer power drives the positive and negative rotation of steel rope by head roll, and steel rope drives the safety door side-to-side movement and opens and closes passage.

3. according to claim 1,2 safety door, it is characterized in that: safety door supports with roller and operates on the beam.

4. according to the safety door of claim 1, it is characterized in that: safety door by about the fan safety door forms, about the fan safety door framework up and down by about fan safety door rotating shaft connection.

5. according to claim 1,4 safety door, it is characterized in that: about the intermediate structure of fan safety door connect by flexible connecting member.

6. according to claim 1,5 safety door, it is characterized in that: the fan safety door left side, left side framework connects with the safety door rotating shaft with solid the support, top, fan safety door framework the right, left side fixed limit retaining, and top, right wing safety door the right is fixed with rotating suspension and steel rope.

7. according to claim 1,5 safety door, it is characterized in that: steel rope two ends and fixed sturcture connect, and establish the steel rope stretching device on the fixed sturcture, and the rotation of right wing safety door is established a sliding sleeve on hanging, and sliding sleeve slides along steel rope.

8. according to claim 1,5 safety door, it is characterized in that: safety door rotating shaft and left side fan safety door relative fixed, a hinge wheel is installed in safety door rotating shaft upper end, hinge wheel and fixed sturcture relative fixed, about fan safety door rotating shaft and right wing safety door relative fixed, about fan safety door rotating shaft top one minor sprocket is installed, minor sprocket with about fan safety door rotating shaft relative fixed, big minor sprocket is connected by chain, and the hinge wheel radius is the twice of minor sprocket radius approximately.