CN105080074A - Combined protection device for pulleys - Google Patents
Combined protection device for pulleys Download PDFInfo
- Publication number
- CN105080074A CN105080074A CN201510584980.9A CN201510584980A CN105080074A CN 105080074 A CN105080074 A CN 105080074A CN 201510584980 A CN201510584980 A CN 201510584980A CN 105080074 A CN105080074 A CN 105080074A
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- CN
- China
- Prior art keywords
- fixed head
- rope
- handle
- torsion spring
- brake cam
- 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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Abstract
The invention relates to a combined protection device for pulleys. The combined protection device comprises a fixed plate, movable side plates and rope wheels, wherein the rope wheel axle is positioned between the fixed plate and the movable side plates, and alignment connecting holes are formed in the fixed plate an the movable side plate. The combined protection device is characterized in that an anti-drop rope slot is formed on one side, facing the rope wheels, on an extension section at the lower part of the fixed plate, a braking cam is positioned through a hinge pin, and the braking cam presses the anti-drop rope slot under the action of a torsional spring. The combined protection device has the characteristics of simple structure, reasonable design, and safety in use; by utilizing the anti-drop rope slot and the one-way braking cam additionally arranged on the extension section of the fixed plate, the risk of rope drop is avoided, and a rope is braked to move downwards, so that the automatic protection effect is achieved, the personal safety is guaranteed, and the demands of the activities including rescue and rock climbing are met.
Description
Technical field:
The present invention does not relate to a kind of pulley combination protective device, is especially applicable to the activities such as rock-climbing, rescue.
Background technology:
Pulley both can change makes force direction, and simple sister block combination just can make the strength of applying double.Application number 201410814875.5, discloses an improved pulley device, and it comprises the first pulley and the second pulley, and two pulleys all have two rope sheaves; Arbitrary pulley is provided with self-locking device, rope can be stoped to move in reverse direction; This self-locking device is one with the trigger member of braking surface, and this trigger member is pressed in rope on rope sheave under torsion spring effect, is only permitted rope single-way moving.This application self-locking device is directly installed on pulley inside, makes troubles to unlocking operation.How to improve prior art deficiency, namely become research object of the present invention.
Summary of the invention:
The object of the invention is a kind of fixed head at pulley of invention and be bent with anticreep grooving, be provided with brake cam in the open side of anticreep grooving, by brake cam and Anti-rope drop slot fit, realize the pulley combination protective device of rope unidirectional self-lock.
Technical solution of the present invention is achieved in that a kind of pulley combination protective device, comprises fixed head, mobile side board and rope sheave, and sheave shaft is positioned between fixed head and mobile side board, and described fixed head and mobile side board offer alignment connecting hole; It is characterized in that: extension is bent with anticreep grooving towards rope sheave side in fixed head bottom, and is positioned with a brake cam by bearing pin, this brake cam presses to described anticreep grooving under torsion spring effect.
Described brake cam becomes class triangular structure, one minor face forms cam surface, a long limit has accommodating groove, reserved axis hole position has concave, described torsion spring is arranged in this concave, one end is plugged on the locating hole of described concave, and the other end is plugged in fixed head or fixes on the locating hole of pad with fixed head; Brake cam is being positioned with one handle away from cam surface one end axle, and this handle can be collected in accommodating groove, and the axle of position fixing handle is arranged with a little torsion spring, and this little torsion spring two spring arm is conflicted respectively on accommodating groove and handle, keeps handle to be in the trend of collection.
The cam surface that described brake cam presses to anticreep grooving is provided with wave tooth.
Described fixed head both sides are respectively equipped with a mobile side board, and are positioned with rope sheave by an axis symmetry; Bottom, described fixed head extension is also provided with cord hole.
The present invention has that structure is simple, reasonable in design, the feature of use safety; Utilize anticreep grooving and one-way brake cam that fixed head extension is set up, both avoided de-rope risk, and can move down by brake rope again, reach automatic protecting function, guarantee personal safety, meet the need of the activities such as rescue, rock-climbing.
Accompanying drawing illustrates:
Below in conjunction with concrete legend, the present invention will be further described:
Fig. 1 pulley combination protective device schematic perspective view
Fig. 2 pulley combination protective device brake cam open mode schematic diagram
Fig. 3 pulley combination protective device perspective exploded view
Wherein
1-fixed head, 11-extension, 12-anticreep grooving, 13-connecting hole
14-cord hole, 15-pad, 2-mobile side board, 3-rope sheave
4-axis, 41-bearing pin, 5-brake cam, 51-cam surface
52-accommodating groove, 53-concave, 54-torsion spring, 6-handle
61-little torsion spring 7-rope
Detailed description of the invention:
With reference to Fig. 1, Fig. 2 and Fig. 3, pulley combination protective device, comprises fixed head 1, mobile side board 2 and rope sheave 3, and rope sheave 3 axle is positioned between fixed head 1 and mobile side board 2, and fixed head 1 and mobile side board 2 offer alignment connecting hole 13; This legend is the combination of duplex type wheel, and also namely fixed head 1 both sides are respectively equipped with a mobile side board 2, and are positioned with two rope sheaves 3 by axis 4 symmetry, are also provided with cord hole 14 in the bottom, extension, bottom 11 of fixed head 1.
On the extension 11 of fixed head 1 bottom, be bent with anticreep grooving 12, this anticreep grooving 12, towards a rope sheave 3, more particularly, is cut to good with the grooving on this rope sheave 3, rope 7 of can not swiping so mutually, extension 11 is also positioned with a brake cam 5 by bearing pin 41, this brake cam 5 one-tenth class triangular structure, one minor face forms cam surface 51, one long limit has accommodating groove 52, reserved axis hole position has concave 53, torsion spring 54 is installed in this concave 53, torsion spring 54 one end is plugged on the locating hole of concave 53, the other end is plugged in fixed head 1 or fixes on the locating hole of pad 15 with fixed head, brake cam 5 is under torsion spring 54 acts on, remain the trend pressing to anticreep grooving 12, the up movement of rope 7, overcome torsion spring mechanical compliance gesture and drive brake cam 5, effect of contraction is not played to rope 7, once rope 7 oppositely movement, identical with the swaying direction that torsion spring masterpiece is used for brake cam 5, rope 7 holds out against toward anticreep grooving 12 by brake cam 5, realizes Braking mode, plays unexpected fall arrest protective effect.In order to improve brake force and avoid skidding, the cam surface 51 pressing to anticreep grooving 12 at brake cam 5 is provided with wave tooth.
Further, one handle 6 is being positioned with away from cam surface 51 one end axle at brake cam 5, this handle 6 can be collected in accommodating groove 52, the axle of position fixing handle 6 is arranged with a little torsion spring 61, this little torsion spring 61 liang of spring arms are conflicted respectively on accommodating groove 52 and handle 6, keep handle 6 to be in collecting state all the time, only whenever necessary, can people for opening it; As Fig. 2, by the handle 6 opened to increase the arm of force, easily brake cam 5 can be opened, allow rope 7 move down under controlled.
Claims (4)
1. a pulley combination protective device, comprises fixed head, mobile side board and rope sheave, and sheave shaft is positioned between fixed head and mobile side board, and described fixed head and mobile side board offer alignment connecting hole; It is characterized in that: extension is bent with anticreep grooving towards rope sheave side in fixed head bottom, and is positioned with a brake cam by bearing pin, this brake cam presses to described anticreep grooving under torsion spring effect.
2. a kind of pulley combination protective device according to claim 1, it is characterized in that: brake cam becomes class triangular structure, one minor face forms cam surface, a long limit has accommodating groove, reserved axis hole position has concave, described torsion spring is arranged in this concave, one end is plugged on the locating hole of described concave, and the other end is plugged in fixed head or fixes on the locating hole of pad with fixed head; Brake cam is being positioned with one handle away from cam surface one end axle, and this handle can be collected in accommodating groove, and the axle of position fixing handle is arranged with a little torsion spring, and this little torsion spring two spring arm is conflicted respectively on accommodating groove and handle, keeps handle to be in the trend of collection.
3. a kind of pulley combination protective device according to claim 1 and 2, is characterized in that: the cam surface that brake cam presses to anticreep grooving is provided with wave tooth.
4. a kind of pulley combination protective device according to claim 1 and 2, is characterized in that: fixed head both sides are respectively equipped with a mobile side board, and is positioned with rope sheave by an axis symmetry; Bottom, described fixed head extension is also provided with cord hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510584980.9A CN105080074A (en) | 2015-09-15 | 2015-09-15 | Combined protection device for pulleys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510584980.9A CN105080074A (en) | 2015-09-15 | 2015-09-15 | Combined protection device for pulleys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105080074A true CN105080074A (en) | 2015-11-25 |
Family
ID=54561966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510584980.9A Pending CN105080074A (en) | 2015-09-15 | 2015-09-15 | Combined protection device for pulleys |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105080074A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744436A (en) * | 2017-01-09 | 2017-05-31 | 叶雄辉 | It is a kind of to limit twisted rope device for no reason |
| CN110030974A (en) * | 2019-04-11 | 2019-07-19 | 杭州瑞纽宝科技有限公司 | A kind of convenient and fast inclinometer, pit retaining monitoring system and pit retaining monitoring method |
| CN112473039A (en) * | 2020-12-15 | 2021-03-12 | 国网山东省电力公司烟台市牟平区供电公司 | A prevent falling device for power supply company overhauls |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5146655A (en) * | 1991-10-29 | 1992-09-15 | Gibbs Peter E | Safety clamp appliance |
| EP1683551A1 (en) * | 2005-01-21 | 2006-07-26 | ALUDESIGN S.p.A. | Locking/lifting device for climbing |
| US20080164096A1 (en) * | 2004-03-22 | 2008-07-10 | Boris Rogelja | Roping Devices |
| CN101745190A (en) * | 2008-11-27 | 2010-06-23 | 齐德公司 | Ascender device with cam for belaying on a fixed rope |
| EP2644231A1 (en) * | 2012-03-27 | 2013-10-02 | Camp S.p.A. | Ventral locking device |
| CN104740848A (en) * | 2013-12-27 | 2015-07-01 | 齐德公司 | Improved pulley device |
| CN204952128U (en) * | 2015-09-15 | 2016-01-13 | 福建省东山县辉永泰体育用品实业有限公司 | Pulley combination protection device |
-
2015
- 2015-09-15 CN CN201510584980.9A patent/CN105080074A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5146655A (en) * | 1991-10-29 | 1992-09-15 | Gibbs Peter E | Safety clamp appliance |
| US20080164096A1 (en) * | 2004-03-22 | 2008-07-10 | Boris Rogelja | Roping Devices |
| EP1683551A1 (en) * | 2005-01-21 | 2006-07-26 | ALUDESIGN S.p.A. | Locking/lifting device for climbing |
| CN101745190A (en) * | 2008-11-27 | 2010-06-23 | 齐德公司 | Ascender device with cam for belaying on a fixed rope |
| EP2644231A1 (en) * | 2012-03-27 | 2013-10-02 | Camp S.p.A. | Ventral locking device |
| CN104740848A (en) * | 2013-12-27 | 2015-07-01 | 齐德公司 | Improved pulley device |
| CN204952128U (en) * | 2015-09-15 | 2016-01-13 | 福建省东山县辉永泰体育用品实业有限公司 | Pulley combination protection device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744436A (en) * | 2017-01-09 | 2017-05-31 | 叶雄辉 | It is a kind of to limit twisted rope device for no reason |
| CN110030974A (en) * | 2019-04-11 | 2019-07-19 | 杭州瑞纽宝科技有限公司 | A kind of convenient and fast inclinometer, pit retaining monitoring system and pit retaining monitoring method |
| CN112473039A (en) * | 2020-12-15 | 2021-03-12 | 国网山东省电力公司烟台市牟平区供电公司 | A prevent falling device for power supply company overhauls |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |