CN102887410A - Safety protection mechanism for lift tractor - Google Patents
Safety protection mechanism for lift tractor Download PDFInfo
- Publication number
- CN102887410A CN102887410A CN2012102785021A CN201210278502A CN102887410A CN 102887410 A CN102887410 A CN 102887410A CN 2012102785021 A CN2012102785021 A CN 2012102785021A CN 201210278502 A CN201210278502 A CN 201210278502A CN 102887410 A CN102887410 A CN 102887410A
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- Prior art keywords
- bar
- stopping
- car
- stop
- extruding block
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a safety protection mechanism for a lift tractor. The safety protection mechanism for the lift tractor is characterized by comprising a left brake rod (4) and a right brake rod (6) which are horizontally and oppositely arranged in slide grooves on the top of a lift car (2), and an extruding block (10) which is positioned between the left brake rod (4) and the right brake rod (6) and can extrude the left brake rod (4) and the right brake rod (6) to lift car guide rails (8), wherein the top of the extruding block (10) is connected with a traction steel wire through a pull rope (12); and the bottom of the extruding block (10) is connected with the lift car (2) through an elastic element (14). The safety protection mechanism for the lift tractor is simple in structure and stable in performance.
Description
Technical field
The present invention relates to a kind of elevator traction mechanism, relate in particular to a kind of elevator traction machine safety protective mechanisms.
Background technology
Elevator; especially the elevator of vertical lift is to rely on the pulling force of many hauling ropes to do the vertical takeoff and landing (VTOL) operation aloft; in case hauling rope fracture in operational process; might cause casualties, the consequence such as device damage, all can be furnished with velocity limiter on the general elevator, when the descending speed of car surpasses certain value; velocity limiter can drive the safety tongs action; car is clamped on the guide rail, though this kind mode can play certain protective effect, but still has the unsettled defective of performance and problem.
The Chinese patent Granted publication number is CN2897955Y, Granted publication day is that the utility model patent on May 9th, 2007 discloses a kind of jacking system hoist ropes rope break detection device, comprise that switch bracket, detector switch, switch re-pack and the fag end device of hoist ropes, switch bracket is fixed on the rope hitch plate of fag end device, switch re-packs the rope head spring that is fixed on the fag end device away from an end of rope hitch plate, and detector switch is fixed on the switch bracket.Although this utility model can detect the disconnected rope situation of jacking system hoist ropes timely, its in use need to be on every hoist ropes installation detecting devices all, so not only wasting space also can disturb each other, to such an extent as to less stable.
Summary of the invention
Technical matters to be solved by this invention provides a kind of simple in structure, the elevator traction machine safety protective mechanisms of stable performance.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of elevator traction machine safety protective mechanisms, comprise that only stop bar, right only stop bar and only stop on a described left side bar and the described right side of two levels, a relative left side that is arranged in the car top chute only stop between the bar and only can be stopped in a described left side bar and the right bar of only stopping are squeezed in extruding block on the car guide rail, the top of described extruding block is connected with traction steel wire by stay cord, and the bottom of described extruding block is connected with car by elastic element.
Only stop bar and the described right side, a described left side only stops that an end of nearly car guide rail is equipped with the piece of only stopping on the bar.
The rubber that the described piece of only stopping the is rectangle piece of only stopping.
Described elastic element is coil spring.
A described left side only stop bar be connected the right side bar of only stopping and be connected by spring with the top of car.
Compared with prior art, beneficial effect of the present invention is:
Because elevator traction machine of the present invention is provided with the left side bar of only stopping with safety protective mechanisms, the right side only stop bar and extruding block, the top of extruding block is connected with traction steel wire by stay cord, the bottom is connected with car by elastic element, during use, when traction steel wire ruptures, extruding block moves downward extruding left side bar and the right side bar of only stopping of only stopping under the effect of elastic element, only stop and can its two ends are squeezed on the car guide rail parallel motion in chute after bar is squeezed in only stop bar and the right side, a left side, under the effect of friction force, make car stop to fall, this process is simply effective, therefore the present invention is simple in structure, stable performance.
Description of drawings
Describe the present invention in detail below in conjunction with drawings and embodiments:
Fig. 1 is structural representation of the present invention.
Among the figure: car 2, the left side bar 4 of only stopping, the right side bar 6 of only stopping, car guide rail 8, extruding block 10, stay cord 12, elastic element 14, the piece 16 of only stopping.
The specific embodiment
As shown in Figure 1, elevator traction machine safety protective mechanisms of the present invention, include the left side bar 4 of only stopping, the right side only stop bar 6 and extruding block 10, bar 4 and right side bar 6 levels of only stopping of only stopping that it is left, in the relative chute that is installed in car 2 tops (not shown), extruding block 10 a left side only stop bar 4 and right only stop between the bar 6 above, the top of extruding block 10 is connected with traction steel wire by stay cord 12, the bottom is connected by the top of elastic element 14 with car 2, and stay cord 12 can make stay cord 12 can discharge it to the pulling force of extruding block 10 when traction steel wire ruptures with the junction of traction steel wire.
For further strengthening left bar 4 and the right effect of only stopping of only stopping bar 6 of only stopping, only stop bar 4 and the right bar 6 of only stopping on a left side on an end of nearly car guide rail 8 rubber that rectangle the is installed piece 16 of only stopping, actually use Elastic element 14 to be coil spring.
Braking principle of the present invention is: when traction steel wire ruptures, the pulling force that stay cord 12 discharges extruding block 10, at this moment extruding block 10 moves downward extruding left side bar 4 and the right side bar 6 of only stopping of only stopping under the effect of elastic element 14, the left bar 4 of only stopping is squeezed in car guide rail 8 on its two ends along the chute horizontal slip with the right bar 6 of only stopping under the extruding of extruding block 10, thereby realize the braking of car 2 by only stop bar 4 and right only stop bar 6 and the friction force of car guide rail 8 of a left side, although this process is simple, but can prevent that car 2 from falling by actv., further for can making left side bar 4 and the right side bar 6 of only stopping of only stopping can be returned to automatically initial position, the present inventor is connected with spring between only being stopped in the top of bar 4 and right only stop bar 6 and car 2 on a left side.
In sum, traction machine of the present invention is simple in structure with safety protective mechanisms, stable performance.
The above only is better embodiment of the present invention; protection scope of the present invention is not limited with above-mentioned embodiment; as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (5)
1. elevator traction machine safety protective mechanisms, it is characterized in that: comprise two levels, a relative left side that is arranged in the chute of car (2) the top bar (4) of only stopping, only stop bar (6) and be positioned at only stop bar (4) and the described right side, a described left side and only stop between the bar (6) and only can be stopped in a described left side bar (4) and the right side bar (6) of only stopping is squeezed in extruding block (10) on the car guide rail (8) of the right side, the top of described extruding block (10) is connected with traction steel wire by stay cord (12), and the bottom of described extruding block (10) is connected with car (2) by elastic element (14).
2. elevator traction machine safety protective mechanisms according to claim 1 is characterized in that: a described left side only the stop end of the upper nearly car guide rail (8) of bar (6) of bar (4) and the described right side of only stopping is equipped with the piece of only stopping (16).
3. elevator traction machine safety protective mechanisms according to claim 2 is characterized in that: the described piece (16) of only stopping is the rubber of the rectangle piece of only stopping.
4.. each described elevator traction machine safety protective mechanisms according to claim 1-3, it is characterized in that: described elastic element (14) is coil spring.
5. elevator traction machine safety protective mechanisms according to claim 4 is characterized in that: a described left side only stop bar (4) be connected the right side bar (6) of only stopping and be connected by spring with the top of car (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012102785021A CN102887410A (en) | 2012-08-07 | 2012-08-07 | Safety protection mechanism for lift tractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012102785021A CN102887410A (en) | 2012-08-07 | 2012-08-07 | Safety protection mechanism for lift tractor |
Publications (1)
Publication Number | Publication Date |
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CN102887410A true CN102887410A (en) | 2013-01-23 |
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ID=47531120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2012102785021A Pending CN102887410A (en) | 2012-08-07 | 2012-08-07 | Safety protection mechanism for lift tractor |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106946116A (en) * | 2017-05-24 | 2017-07-14 | 住友富士电梯有限公司 | A kind of elevator with bidirectional speed limiter |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5459745A (en) * | 1977-10-19 | 1979-05-14 | Hitachi Ltd | Emergency stop device of elevator |
CN2439428Y (en) * | 2000-09-09 | 2001-07-18 | 中国矿业大学 | Anti-falling catcher for steel rail skip |
CN2633846Y (en) * | 2003-05-26 | 2004-08-18 | 黄光智 | Rope broken safety protector for lift |
CN202717469U (en) * | 2012-08-07 | 2013-02-06 | 苏州巨立电梯有限公司 | Safety protective mechanism used for lift tractor |
-
2012
- 2012-08-07 CN CN2012102785021A patent/CN102887410A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5459745A (en) * | 1977-10-19 | 1979-05-14 | Hitachi Ltd | Emergency stop device of elevator |
CN2439428Y (en) * | 2000-09-09 | 2001-07-18 | 中国矿业大学 | Anti-falling catcher for steel rail skip |
CN2633846Y (en) * | 2003-05-26 | 2004-08-18 | 黄光智 | Rope broken safety protector for lift |
CN202717469U (en) * | 2012-08-07 | 2013-02-06 | 苏州巨立电梯有限公司 | Safety protective mechanism used for lift tractor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106946116A (en) * | 2017-05-24 | 2017-07-14 | 住友富士电梯有限公司 | A kind of elevator with bidirectional speed limiter |
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Application publication date: 20130123 |