CN2089351U - Safety device for overhead work - Google Patents
Safety device for overhead work Download PDFInfo
- Publication number
- CN2089351U CN2089351U CN 91215138 CN91215138U CN2089351U CN 2089351 U CN2089351 U CN 2089351U CN 91215138 CN91215138 CN 91215138 CN 91215138 U CN91215138 U CN 91215138U CN 2089351 U CN2089351 U CN 2089351U
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- CN
- China
- Prior art keywords
- ratchet
- adjusting rod
- fulcrum shaft
- housing
- safety
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Emergency Alarm Devices (AREA)
Abstract
The utility model relates to a safety device for overhead work, which is composed of a safety belt, a casing, a supporting shaft, a hanger, a steel cable, an adjusting rod, a fulcrum shaft, a ratchet wheel, a spring belt of the inner chamber of the ratchet wheel, an alarm, etc., wherein the steel cable bypasses the supporting shaft, and penetrates the gap between the fulcrum shaft and a guide wheel and the gap between the guide wheel and the supporting shaft (5) to be connected with the hanger. When an operator falls down from a high position, a ratchet pawl on the fulcrum shaft is in contact with the ratchet wheel, and the steel cable is tensioned for preventing the operator from falling down. Meanwhile, conductive contact points on the adjusting rod make the alarm to form an energized circuit and send out alarm messages for seeking help. The safety device can ensure the omnibearing safety of the operator, and can be used in various occasions in need of sending out signals for displacement caused by force.
Description
The utility model relates to a kind of safety device, particularly a kind of work high above the ground safety device that is not subjected to operating influence.
During work high above the ground, the operator need tie safety device, a kind of safety device that the somewhere, Zhejiang produces, its profile is similar to 500 kilograms chain block, during use it is hung on the support, and steel cable hitches the operator, when the operator dropped, the people was held in this device brake hard.But it is effectively interior that this device can only hang over certain angular range of operator top, and it is just inoperative to surpass this device of this scope.In addition, this device is heavier, and inconvenience is carried; Rope capacity is fixed, operating area is restricted, and can not report to the police.
The utility model purpose provide the relative suspension member of a kind of omnibearing operator of being arbitrarily angled that can both effectively use, suitably enlarge work high above the ground safety operating area, that can report to the police.
The utility model purpose realizes like this: will a kind ofly include the work high above the ground safety that is fixed on the safety belt that covers end face, housing, suspension member, steel wire rope, mandrel, siren and be improved, improvement be in:
A) between housing and lid, be supported with the ratchet and the fulcrum shaft that can rotate, fulcrum shaft outer surface different parts is fixed with ratchet and guide wheel, have root steel wire rope 14 upwards walk around back shaft 2 and pass between fulcrum shaft and the guide wheel successively, guide wheel is connected with suspension member with space between the back shaft 5, steel wire rope 14 other ends are on ratchet;
B) the ratchet inner chamber is wound with the connected spring band 16 of an end, and the other end is fixed by mandrel;
C) fulcrum shaft extends the adjusting rod that the outer protruding end of housing is connected with the band conductive contact, and the electrode that forms power circuit with conductive contact is connected with siren respectively.
The operator carries above-mentioned safety, and suspension member can hang over any position.During normal work high above the ground, the operator places the no power position with adjusting rod, and this moment, steel wire rope was loose, does not influence operator's construction, ratchet does not contact with ratchet on the ratchet on the fulcrum shaft, the operator can move in suitable area of space, and when work moved away from suspension member, steel wire rope drove ratchet and rotates, steel wire rope lengthens, otherwise under the spring band effect of spooling, steel wire rope promptly is shortened.When the operator accidentally from aerial bob following time, the steel wire rope tensioning is stirred the fulcrum shaft rotation by guide wheel, and ratchet is contacted with ratchet, ratchet can not rotate at this moment, the operator is held by steel wire rope; Simultaneously, fulcrum shaft drives adjusting rod, makes conductive contact connect electrode, and siren sends alarm signal, and other people can rescue immediately.Be in the operator below as suspension member, during accident, steel wire rope tensioning between two back shafts, as long as design is suitable, steel wire rope can lift guide wheel, makes the fulcrum shaft rotation, guarantee that ratchet contacts with ratchet, still can guarantee operator's safety, reach the purpose of comprehensive safety operation.
That the safety device uses is reliable, easy to carry, arbitrary orientation can both use during work high above the ground.In addition, to cause the occasion that displacement signals all applicable because of stressed.
Give to describe in detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model structural representation, is the A-A revolved section of Fig. 2.
When Fig. 2 works for the utility model, the working state figure that ratchet contacts with ratchet on the ratchet.
Fig. 3 is conductive contact and an electrifying electrodes formation alarm circuit schematic diagram on the adjusting rod.
A kind of work high above the ground safety that includes garden female cap 21, housing 20, suspension member, steel wire rope 14, mandrel 17, siren 29 etc., safety belt 18 is fixed on and covers on 21, and safety belt ties up on one's body the operator during operation, and its material can be made of leather or polyamide fibre.With the housing 20 of nylon or metal manufacturing with cover and be supported with mandrel 17, the fulcrum shaft 12 that can rotate and ratchet, several back shafts 1,2,5,19 etc. between 21, back shaft can be established 6-10 along garden week distribution.Fulcrum shaft 12 outer surfaces one end is fixed with ratchet 22, and a guide wheel 10 is supported with square or garden shape, its middle part in the fulcrum shaft cross section, and its axial shape can be saddle type or garden cylindricality, leaves suitable space between guide wheel 10 and fulcrum shaft 12 surfaces.Ratchet 22 and guide wheel 10 relative positions can differ 180 ° or less than 180 °.Fulcrum shaft 12 extends the adjusting rod 7 that housing 20 outer protruding end 11 usefulness keys are connected with the band conductive contact, and conductive contact is located at an end of its nearly housing outer rim, and it can be an elastic copper sheet or other contact commonly used that is welded on the adjusting rod 7.The utility model conductive contact adopts a metal balls 6, and it contact with spring 9 in the cavity that is contained in adjusting rod upper end, and spring 9 is supported by screw 8.
Have root steel wire rope 14 upwards walk around back shaft 2 and pass between fulcrum shaft 12 and the guide wheel 10 successively, the space between guide wheel 10 and the back shaft 5, be connected with suspension member by rope sling 3, suspension member can be to be with the hook 4 of spring leaf or the hook or the collar of other similar type.Steel wire rope 14 other ends some circles on the ratchet are so that lengthen or shorten.In order to make safety action sensitiveer reliable, the steel wire rope other end can pass behind the space between the back shaft 1,2 on wheel body 24.
The ratchet inner chamber is wound with the connected spring band 16 of an end, and the other end is fixing by axle 17 surfaces, and its fixing means can be direct welding or process a plane on mandrel 17, and spring band is fixed on it with standard component or welded it.It is one whole or be that the wheel body 24 of toroidal cavity, connected ratchet sheet 23 and catch 13 are formed by inner chamber that ratchet can be made into.Can be made into and be slidingly matched between ratchet and housing, the lid, rotate flexibly for making it, wheel body 24 with cover 21, housing is equipped with ball 15 respectively between 20 bottom surfaces.
During normal running, ratchet can not contact with ratchet on the fulcrum shaft, and conductive contact is positioned at cold pit on the adjusting rod, when the operator drops, the steel wire rope tensioning is also stirred fulcrum shaft by guide wheel, makes that conductive contact changes in the pit of switching on of the nearly outer rim of housing on the adjusting rod.This moment, adjusting rod promptly was equivalent to a single gang switch, and by lead 25, the electrode that is connected with siren 29 forms power circuit by conductive contact at once respectively, and loudspeaker 30 promptly sends warning message.Similar device such as acoustical generator substitutes on electronic door bell of selling on the siren available markets or the peashooter, and also a transmitting set is contained in receiver at a distance, the back of the meeting accident rescue of can sending someone at a distance.Electrode is made by conductive copper sheet, electrode 28 contacts with adjusting rod 7 end faces, and is compressed by standard component, and other end electrode 26 quantitatively can be established several more, it is located in the pit of housing 20 nearly outer rims, and its method of attachment can directly be welded in the pit or electrode 26 is fixed in the pit by brass screw 27.When siren need not switched on, with hand adjusting rod is reset to the no power state and gets final product.
Each design size scope as shown in Figure 1, (unit be millimeter): B
1=75～110, B
2=36～70, B
3=30～60, L=20～40, Φ
1=190～250, Φ
2=115～175, Φ
3=85～150, Φ
4=70～130.
Claims (6)
1, a kind of work high above the ground safety that is fixed on the safety belt that covers end face, housing, suspension member, steel wire rope, mandrel, siren that includes is characterized in that:
A) between housing and lid, be supported with the ratchet and the fulcrum shaft that can rotate, fulcrum shaft outer surface different parts is fixed with ratchet and guide wheel, have root steel wire rope 14 upwards walk around back shaft 2 and pass between fulcrum shaft and the guide wheel successively, guide wheel is connected with suspension member with space between the back shaft 5, steel wire rope 14 other ends are on ratchet;
B) the ratchet inner chamber is wound with the connected spring band 16 of an end, and the other end is fixed by mandrel;
C) fulcrum shaft extends the adjusting rod that the outer protruding end of housing is connected with the band conductive contact, and the electrode that forms power circuit with conductive contact is connected with siren respectively.
2,, it is characterized in that steel wire rope 14 other ends pass behind the space between the back shaft 1,2 on wheel body 24 by the described safety of claim 1.
3, by the described safety of claim 1, it is characterized in that conductive contact is a ball 6 on the adjusting rod 7, its spring 9 interior with being contained in adjusting rod 7 cavitys contacts, and spring 9 is by screw 8 supportings.
4, by claim 1 or 2 or 3 described safeties, it is characterized in that electrode 28 contacts with adjusting rod 7 end faces, electrode 26 is fixed in the pit of the nearly outer rim of housing by brass screw 27.
5, by the described safety of claim 4, it is characterized in that ratchet is that the wheel body 24 of toroidal cavity, the ratchet sheet 23 that is connected with wheel body 24 and catch 13 are formed by inner chamber.
6,, it is characterized in that wheel body 24 and lid 21, housing are equipped with ball 15 respectively between 20 bottom surfaces by the described safety of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91215138 CN2089351U (en) | 1991-02-11 | 1991-02-11 | Safety device for overhead work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91215138 CN2089351U (en) | 1991-02-11 | 1991-02-11 | Safety device for overhead work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2089351U true CN2089351U (en) | 1991-11-27 |
Family
ID=4923258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91215138 Withdrawn CN2089351U (en) | 1991-02-11 | 1991-02-11 | Safety device for overhead work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2089351U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670199A (en) * | 2017-11-14 | 2018-02-09 | 国家电网公司 | A kind of catching device that alarm the tinkle of bells can be sent in emergency action |
| CN111298323A (en) * | 2020-02-21 | 2020-06-19 | 常州信息职业技术学院 | High-altitude maintenance protection device for network communication launching tower |
-
1991
- 1991-02-11 CN CN 91215138 patent/CN2089351U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670199A (en) * | 2017-11-14 | 2018-02-09 | 国家电网公司 | A kind of catching device that alarm the tinkle of bells can be sent in emergency action |
| CN111298323A (en) * | 2020-02-21 | 2020-06-19 | 常州信息职业技术学院 | High-altitude maintenance protection device for network communication launching tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |