CN103832907B - A kind of elevator diversion sheave safety guard - Google Patents
A kind of elevator diversion sheave safety guard Download PDFInfo
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- CN103832907B CN103832907B CN201410095599.1A CN201410095599A CN103832907B CN 103832907 B CN103832907 B CN 103832907B CN 201410095599 A CN201410095599 A CN 201410095599A CN 103832907 B CN103832907 B CN 103832907B
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- diversion sheave
- pull bar
- elevator
- sheave
- switch
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Abstract
The invention provides a kind of elevator diversion sheave safety guard, comprise diversion sheave fender guard, diversion sheave permanent seat, diversion sheave, sheave shaft, pull bar, be triggered after can forbid switch, switch fixed support, elastic element that elevator runs, the bottom of described diversion sheave permanent seat has base plate; Diversion sheave fender guard is inverted U structure and can be enclosed within up and down on diversion sheave permanent seat; The upper end of pull bar connects diversion sheave fender guard, and base plate can be passed up and down in its lower end, and elastic element is connected between the bottom of pull bar and base plate; Switch fixed support is connected to the bottom of pull bar, and switch is arranged on the below of base plate by switch fixed support, is provided with one section of safety distance between switch and the lower surface of base plate.The present invention is after sheave shaft fracture, and traction steel-cable holds diversion sheave fender guard, and then drive switch fixed support upward movement by pull bar, switch is triggered after touching the lower surface of diversion sheave permanent seat, finally makes elevator safety stop.
Description
Technical field
The present invention relates to a kind of elevator diversion sheave device, especially a kind of elevator diversion sheave device can protecting elevator safety when sheave shaft ruptures.
Background technology
Diversion sheave is a kind of movable pulley be applied on elevator, is usually arranged on car and counterweight framework.Hoist ropes is walked around diversion sheave and can be formed different traction ratios as required, and its effect is the horsepower output and the moment that reduce towing machine.
The diversion sheave device of prior art generally comprises clamping plate, the sheave shaft be rotatably connected in the clamping plate of left and right, the diversion sheave be arranged on sheave shaft erect two pieces, left and right, is fixed on car or counterweight framework by the bottom of left and right two clamping plates.When elevator runs, when the pulling force of steel rope increases suddenly, when exceeding the ability to bear of sheave shaft, sheave shaft can rupture, diversion sheave and steel rope is caused therefrom to come off, and the control system of elevator can't make elevator out of service because of the fault of diversion sheave device, now lift car and the counterweight accident of probably therefore falling.
Summary of the invention
In view of this, the object of this invention is to provide a kind of elevator that makes when sheave shaft ruptures out of service with the elevator diversion sheave safety guard ensureing elevator safety.
In order to achieve the above object, the invention provides a kind of elevator diversion sheave safety guard, it is characterized in that: comprise diversion sheave fender guard, diversion sheave permanent seat, diversion sheave, sheave shaft, pull bar, be triggered after can forbid switch, switch fixed support, elastic element that elevator runs, described diversion sheave is installed in rotation on described diversion sheave permanent seat by described sheave shaft, and the bottom of described diversion sheave permanent seat has base plate; Described diversion sheave fender guard is inverted U structure and can be enclosed within described diversion sheave permanent seat up and down; The upper end of described pull bar connects described diversion sheave fender guard, and described base plate can be passed up and down in its lower end, and described elastic element is connected between the bottom of described pull bar and described base plate; Described switch fixed support is connected to the bottom of described pull bar, and described switch is arranged on the below of described base plate by described switch fixed support, is provided with one section of safety distance between the lower surface of described switch and described base plate.
Preferably, the top of described diversion sheave fender guard is also laterally installed with gear reel for rope.
More preferably, the quantity of described gear reel for rope is multiple.
In one embodiment, multiple described gear reel for rope all parallels with described sheave shaft, and multiple described gear reel for rope is all positioned at the radius of both sides, described diversion sheave center.
Preferably, described pull bar is screw rod, and described elastic element is be set in the Compress Spring on described pull bar, and the lower end of described elastic element is locked by locking element.
More preferably, described locking element is and two nuts of stressed joint on described pull bar, and described switch fixed support is between described two nuts and with described pull bar up-and-down movement.
Further, described pull bar is also provided with the elastic element permanent seat in order to hold and to fix described elastic element.
Again further, described elastic element permanent seat is the U-shaped seat of upper end open, and the distance of the upper end of described elastic element permanent seat and the lower surface of described base plate is greater than the safety distance between the lower surface of described switch and described base plate.
In one embodiment, the quantity of described pull bar is two, and two described pull bars are symmetricly set on the both sides of described diversion sheave, and described switch fixed support can be connected to wherein on any one of pull bar described in two.
Wherein, described switch is the travel switch of the safety return circuit of access apparatus for controlling elevator.
Compared to prior art; elevator diversion sheave safety guard of the present invention has the following advantages: be set on diversion sheave device by the diversion sheave fender guard relative motion of U-shaped structure; when after sheave shaft fracture; the traction steel-cable of elevator can hold diversion sheave fender guard; elastic element is compressed under the effect of pull bar; pull bar drives switch to touch diversion sheave permanent seat simultaneously, after switch is triggered, elevator safety is stopped.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of elevator diversion sheave safety guard of the present invention.
In accompanying drawing: 1-diversion sheave fender guard; 2-keeps off reel for rope; 3-diversion sheave permanent seat; 4-diversion sheave; 5-sheave shaft; 6-pull bar; 7-locking element; 8-switch; 9-switch fixed support; 10-elastic element permanent seat; 11-elastic element.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Refer to Fig. 1, a kind of elevator diversion sheave safety guard, comprise diversion sheave fender guard 1, diversion sheave permanent seat 3, diversion sheave 4, sheave shaft 5, pull bar 6, be triggered after can forbid switch 8, switch fixed support 9, elastic element 11 that elevator runs.In the present embodiment, described diversion sheave fender guard 1 is inverted U structure and can be enclosed within up and down on diversion sheave permanent seat 3, is specially a kind of inverted U case.Switch 8 is travel switch, and in the safety return circuit of its access apparatus for controlling elevator, when switch 8 touches the lower surface of diversion sheave permanent seat 3 and is triggered, apparatus for controlling elevator will cut off elevator main power source, and elevator safety is stopped.
Wherein, diversion sheave 4 is installed in rotation on diversion sheave permanent seat 3 by sheave shaft 5.Be specially the base plate that diversion sheave permanent seat 3 has clamping plate and the bottom of erectting the left and right sides, sheave shaft 5 is laterally rotatably connected on the clamping plate of left and right, the lower end of left and right clamping plate is weldingly fixed on base plate, and diversion sheave 4 is arranged on sheave shaft 5 and walks around for traction steel-cable and bear the pulling force of traction steel-cable rotationally.The diversion sheave fender guard 1 of inverted U structure can be set on diversion sheave permanent seat 3 up and down, and diversion sheave permanent seat 3 can relatively fluctuate together with the diversion sheave 4 on it and diversion sheave axle 5 in diversion sheave fender guard 1.
The left and right sides of the lower ending opening of the inverted U structure of diversion sheave fender guard 1 also respectively horizontal-extending have ear loop; the upper end of two pull bars 6 is connected in two, the left and right ear loop of diversion sheave fender guard 1, and base plate can be passed up and down in the lower end of its pull bar 6.In the present embodiment, two pull bars 6 are symmetricly set on the left and right sides of diversion sheave 4, the bottom that each pull bar 6 exceedes base plate is arranged with an elastic element 11, and elastic element 11 is locked by locking element 7, thus between the bottom making elastic element 11 be connected to pull bar 6 and base plate.In the present embodiment, pull bar 6 is screw rod, and its underpart has screw thread, and locking element 7 is in mating connection with the screw thread of pull bar 6 two and tight nut.Elastic element 11 is Compress Spring, normally runs at elevator, and when sheave shaft 5 does not have a fracture, Compress Spring maintains certain pre compressed magnitude, guarantees that pull bar 6 can not upward movement easily.
Switch fixed support 9 is connected to the bottom of any one of two pull bars 6 in left and right, and also can be connected to the bottom of two pull bars 6, switch fixed support 9 is along with pull bar 6 up-and-down movement simultaneously.In the present embodiment, switch fixed support 9 is fixed on the bottom of the pull bar 6 in left side by two nut lockings.Switch 8 is arranged on the below of base plate by switch fixed support 9, is provided with one section of safety distance between the lower surface of switch 8 and described base plate.
Pull bar 6 is also provided with the elastic element permanent seat 10 in order to accommodation and fixing elastic element 11.In the present embodiment, elastic element permanent seat 10 is the U-shaped seat of upper end open, and the distance of the upper end of elastic element permanent seat 10 and the lower surface of base plate is greater than the safety distance between the lower surface of switch 8 and described base plate.When this kind of structure ensures pull bar 6 upward movement, switch 8 touches the lower surface of base plate prior to elastic element permanent seat 10, ensures that switch 8 can be triggered in time.
The top of diversion sheave fender guard 1 is also laterally installed with multiple gear reel for rope 2, and multiple described gear reel for rope 2 all parallels with described sheave shaft 5, and multiple described gear reel for rope 2 is all positioned at the radius of both sides, described diversion sheave 4 center.Multiple gear reel for ropes 2 can strengthen the tensile strength of diversion sheave fender guard 1, avoid diversion sheave fender guard 1 to be drawn bad by steel rope.
After sheave shaft 5 ruptures; the traction steel-cable of elevator can hold the gear reel for rope 2 of diversion sheave fender guard 1; diversion sheave fender guard 1 drives pull bar 6 upward movement; elastic element 11 is compressed under the effect of pull bar 6; pull bar 6 drives switch 8 to touch the lower surface of diversion sheave permanent seat 3 simultaneously; after switch 8 is triggered, apparatus for controlling elevator cuts off elevator main power source, and elevator safety is stopped.Therefore, elevator diversion sheave safety guard of the present invention can protect elevator in time when the axle fracture of diversion sheave, avoids elevator to have an accident.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. an elevator diversion sheave safety guard, it is characterized in that: comprise diversion sheave fender guard (1), diversion sheave permanent seat (3), diversion sheave (4), sheave shaft (5), pull bar (6), be triggered after can forbid switch (8), switch fixed support (9), elastic element (11) that elevator runs, described diversion sheave (4) is installed in rotation on described diversion sheave permanent seat (3) by described sheave shaft (5), and the bottom of described diversion sheave permanent seat (3) has base plate; Described diversion sheave fender guard (1) is for inverted U structure and can be enclosed within described diversion sheave permanent seat (3) up and down; The upper end of described pull bar (6) connects described diversion sheave fender guard (1), and described base plate can be passed, between the bottom that described elastic element (11) is connected to described pull bar (6) and described base plate up and down in its lower end; Described switch fixed support (9) is connected to the bottom of described pull bar (6), described switch (8) is arranged on the below of described base plate by described switch fixed support (9), is provided with one section of safety distance between described switch (8) and the lower surface of described base plate.
2. a kind of elevator diversion sheave safety guard according to claim 1, is characterized in that: the top of described diversion sheave fender guard (1) is also laterally installed with gear reel for rope (2).
3. a kind of elevator diversion sheave safety guard according to claim 2, is characterized in that: the quantity of described gear reel for rope (2) is multiple.
4. a kind of elevator diversion sheave safety guard according to claim 3; it is characterized in that: multiple described gear reel for rope (2) all parallels with described sheave shaft (5), and multiple described gear reel for rope (2) is all positioned at the radius of described diversion sheave (4) both sides, center.
5. a kind of elevator diversion sheave safety guard according to claim 1; it is characterized in that: described pull bar (6) is screw rod; described elastic element (11) is for being set in the Compress Spring on described pull bar (6), and the lower end of described elastic element (11) is by locking element (7) locking.
6. a kind of elevator diversion sheave safety guard according to claim 5; it is characterized in that: described locking element (7) for and two nuts of stressed joint on described pull bar (6), described switch fixed support (9) is between described two nuts and with described pull bar (6) up-and-down movement.
7. a kind of elevator diversion sheave safety guard according to claim 5, is characterized in that: described pull bar (6) is also provided with the elastic element permanent seat (10) in order to hold and to fix described elastic element (11).
8. a kind of elevator diversion sheave safety guard according to claim 7; it is characterized in that: the U-shaped seat that described elastic element permanent seat (10) is upper end open, the distance of the described upper end of elastic element permanent seat (10) and the lower surface of described base plate is greater than the safety distance between described switch (8) and the lower surface of described base plate.
9. a kind of elevator diversion sheave safety guard according to claim 5 to 8 any one; it is characterized in that: the quantity of described pull bar (6) is two; two described pull bars (6) are symmetricly set on the both sides of described diversion sheave (4), and described switch fixed support (9) can be connected to wherein on any one of pull bar (6) described in two.
10. a kind of elevator diversion sheave safety guard according to claim 1, is characterized in that: described switch (8) is the travel switch of the safety return circuit of access apparatus for controlling elevator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095599.1A CN103832907B (en) | 2014-03-14 | 2014-03-14 | A kind of elevator diversion sheave safety guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095599.1A CN103832907B (en) | 2014-03-14 | 2014-03-14 | A kind of elevator diversion sheave safety guard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103832907A CN103832907A (en) | 2014-06-04 |
| CN103832907B true CN103832907B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410095599.1A Active CN103832907B (en) | 2014-03-14 | 2014-03-14 | A kind of elevator diversion sheave safety guard |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106005887A (en) * | 2016-07-27 | 2016-10-12 | 江南嘉捷电梯股份有限公司 | Anti-pinch device for shopping cart conveying system conveying chain entrance |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000044143A (en) * | 1998-07-28 | 2000-02-15 | Hitachi Ltd | Jack dropping-out preventing shock absorber for hydraulic elevator |
| JP5173281B2 (en) * | 2007-06-29 | 2013-04-03 | 東芝エレベータ株式会社 | elevator |
| JP5320858B2 (en) * | 2008-06-30 | 2013-10-23 | フジテック株式会社 | Elevator suspension equipment |
| CN201703932U (en) * | 2009-08-07 | 2011-01-12 | 赵志勇 | Elevator speed limiter vertical tension device |
| CN201512336U (en) * | 2009-08-15 | 2010-06-23 | 福州快科电梯工业有限公司 | Suspended type car roof diversion sheave device |
| CN101891095B (en) * | 2010-07-30 | 2012-05-23 | 江南嘉捷电梯股份有限公司 | Setting structure of diversion sheave on elevator counterweight frame |
| CN102211729A (en) * | 2011-06-16 | 2011-10-12 | 吴江市德菱电梯配套有限公司 | Counterweight diversion sheave assembly for elevator |
| CN202296647U (en) * | 2011-10-25 | 2012-07-04 | 浙江怡达快速电梯有限公司 | Ward off rope device with double action of lift car top wheel |
| CN203269297U (en) * | 2013-04-24 | 2013-11-06 | 贺杰 | Novel elevator counterweight housing |
| CN203781565U (en) * | 2014-03-14 | 2014-08-20 | 苏州富士电梯有限公司 | Safety protection device for elevator diversion sheave |
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2014
- 2014-03-14 CN CN201410095599.1A patent/CN103832907B/en active Active
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| CN103832907A (en) | 2014-06-04 |
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Effective date of registration: 20180425 Address after: 215122 28 Weixin Road, Suzhou Industrial Park, Suzhou, Jiangsu Patentee after: Jiangnan Jiajie Lift Co., Ltd., Jiangsu Address before: 215122 No. 718 Ting Ting Road, Suzhou Industrial Park, Jiangsu Patentee before: Suzhou Fushi Elevator Co., Ltd. |