CN203781565U - Safety protection device for elevator diversion sheave - Google Patents
Safety protection device for elevator diversion sheave Download PDFInfo
- Publication number
- CN203781565U CN203781565U CN201420119680.4U CN201420119680U CN203781565U CN 203781565 U CN203781565 U CN 203781565U CN 201420119680 U CN201420119680 U CN 201420119680U CN 203781565 U CN203781565 U CN 203781565U
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- CN
- China
- Prior art keywords
- diversion sheave
- elevator
- sheave
- switch
- pull bar
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- 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.)
- Withdrawn - After Issue
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- 230000001960 triggered effect Effects 0.000 claims abstract description 9
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 1
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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The utility model provides a safety protection device for an elevator diversion sheave. The safety protection device comprises a diversion sheave protecting device, a diversion sheave fixing seat, a diversion sheave, a sheave shaft, a pull rod, a switch capable of forbidding an elevator to run after being triggered, a switch fixing support and an elastic element, wherein a base plate is arranged at the bottom of the diversion sheave fixing seat; the diversion sheave protecting device adopts an inverted U-shaped structure and can cover the diversion sheave fixing seat in an up-and-down motion manner; the upper end of the pull rod is connected to the diversion sheave protecting device and the lower end of the pull rod can penetrate through the base plate in the up-and-down motion manner, and the elastic element is connected between the lower part of the pull rod and the base plate; the switch fixing support is connected at the lower part of the pull rod, the switch is mounted below the base plate through the switch fixing support, and a safe distance is formed between the switch and the lower end face of the base plate. After the sheave shaft is broken, a steel wire rope is dragged to pull the diversion sheave protecting device, then the switch fixing support is driven to move upwards through the pull rod, the switch is triggered after touching the lower end face of the diversion sheave fixing seat, and finally the elevator is shut down safely.
Description
Technical field
The utility model relates to a kind of elevator diversion sheave device, the especially a kind of elevator diversion sheave device that can protect elevator safety in the situation that sheave shaft ruptures.
Background technology
Diversion sheave is a kind of movable pulley being applied on elevator, is conventionally 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 to reduce the horsepower output of towing machine and moment.
The diversion sheave device of prior art generally comprise two settings in left and right clamping plate, be rotatably connected to sheave shaft in the clamping plate of left and right, be arranged on the diversion sheave on sheave shaft, the bottom by left and right two clamping plates is fixed on car or counterweight framework.During elevator operation, when the pulling force of steel rope increases suddenly, while surpassing the ability to bear of sheave shaft, sheave shaft can rupture, cause diversion sheave and steel rope 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, the accident that now therefore lift car and counterweight probably fall.
Summary of the invention
In view of this, it is out of service to ensure the elevator diversion sheave safety guard of elevator safety that the purpose of this utility model is to provide a kind of elevator that makes when sheave shaft ruptures.
In order to achieve the above object, the utility model 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, can forbid switch, switch fixed support, the elastic element of elevator operation after being triggered, 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 on described diversion sheave permanent seat up-and-down movement; The upper end of described pull bar connects described diversion sheave fender guard, and described base plate can be passed in up-and-down movement ground in its lower end, and described elastic element is connected between the bottom and described base plate of described pull bar; 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 described switch and the lower surface of 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 a plurality of.
In one embodiment, a plurality of described gear reel for ropes all parallel with described sheave shaft, and a plurality of 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 the Compress Spring being set on described pull bar, and lock by locking element the lower end of described elastic element.
More preferably, described locking element is and two nuts of stressed joint on described pull bar that described switch fixed support is between described two nuts and with described pull bar up-and-down movement.
Further, on described pull bar, be also provided with to hold and fix the elastic element permanent seat of described elastic element.
Again further, the U-shaped seat that described elastic element permanent seat is upper end open, 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 described switch and the lower surface of 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 utility model has the following advantages: be set on diversion sheave device to the diversion sheave fender guard relative motion by U-shaped structure; after sheave shaft fracture; the traction steel-cable of elevator can be held 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, makes elevator safety stop after switch is triggered.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the utility model elevator diversion sheave safety guard.
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.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.
Refer to Fig. 1, a kind of elevator diversion sheave safety guard, comprises diversion sheave fender guard 1, diversion sheave permanent seat 3, diversion sheave 4, sheave shaft 5, pull bar 6, can forbid switch 8, switch fixed support 9, the elastic element 11 of elevator operation after being triggered.In the present embodiment, described diversion sheave fender guard 1 is inverted U structure and can be enclosed within on diversion sheave permanent seat 3 up-and-down movement, is specially a kind of inverted U case.Switch 8 is travel switch, 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 while being triggered, apparatus for controlling elevator will cut off elevator main power source, makes elevator safety parking.
Wherein, diversion sheave 4 is installed in rotation on diversion sheave permanent seat 3 by sheave shaft 5.Be specially diversion sheave permanent seat 3 and there is the clamping plate of left and right sides setting and the base plate 31 of bottom, 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 31, and diversion sheave 4 is arranged on the pulling force of walking around and bear rotationally traction steel-cable on sheave shaft 5 for traction steel-cable.The diversion sheave fender guard 1 of inverted U structure can be set on diversion sheave permanent seat 3 up-and-down movement, 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 hangers portion; the upper end of two pull bars 6 is connected in two of the left and right hangers portion of diversion sheave fender guard 1, and base plate 31 can be passed in up-and-down movement ground 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 surpasses base plate 31 is arranged with an elastic element 11, and elastic element 11 is locked by locking element 7, thereby elastic element 11 is connected between the bottom and base plate 31 of pull bar 6.In the present embodiment, pull bar 6 is screw rod, and its underpart has screw thread, and locking element 7 is two and the tight nut in mating connection with the screw thread of pull bar 6.Elastic element 11 is Compress Spring, at elevator, normally moves, and sheave shaft 5 does not have in the situation of fracture, and Compress Spring maintains certain pre compressed magnitude, guarantees not upward movement easily of pull bar 6.
Switch fixed support 9 is connected to any one bottom of two pull bars 6 in left and right, also can be connected to the bottom of two pull bars 6 simultaneously, and switch fixed support 9 is along with pull bar 6 up-and-down movements.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 31 by switch fixed support 9, between switch 8 and the lower surface of described base plate 31, be provided with one section of safety distance.
On pull bar 6, be also provided with to hold and the fixing elastic element permanent seat 10 of elastic element 11.In the present embodiment, the U-shaped seat that elastic element permanent seat 10 is upper end open, the distance of the lower surface of the upper end of elastic element permanent seat 10 and base plate 31 is greater than the safety distance between switch 8 and the lower surface of described base plate 31.When this kind of structure guarantees pull bar 6 upward movement, switch 8 touches the lower surface of base plate 31 prior to elastic element permanent seat 10, guarantees that switch 8 can be triggered in time.
The top of diversion sheave fender guard 1 is also laterally installed with a plurality of gear reel for ropes 2, and a plurality of described gear reel for ropes 2 all parallel with described sheave shaft 5, and a plurality of described gear reel for rope 2 is all positioned at the radius of described diversion sheave 4 both sides, center.A plurality of 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 fractures; the traction steel-cable of elevator can be held the gear reel for rope 2 of diversion sheave fender guard 1; diversion sheave fender guard 1 drives pull bar 6 upward movements; 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 utility model can be protected elevator in time when the axle fracture of diversion sheave, avoids elevator to have an accident.
Above-described embodiment is only explanation technical conceive of the present utility model and feature; its object is to allow person skilled in the art can understand content of the present utility model and implement according to this; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
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), can forbid switch (8), switch fixed support (9), the elastic element (11) of elevator operation after being triggered, it is upper that 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 (31); Described diversion sheave fender guard (1) is for inverted U structure and can be enclosed within on described diversion sheave permanent seat (3) up-and-down movement; The upper end of described pull bar (6) connects described diversion sheave fender guard (1), and described base plate (31) can be passed in up-and-down movement ground in its lower end, and described elastic element (11) is connected between the bottom and described base plate (31) of described pull bar (6); 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 (31) by described switch fixed support (9), between described switch (8) and the lower surface of described base plate (31), be provided with one section of safety distance.
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 a plurality of.
4. a kind of elevator diversion sheave safety guard according to claim 3; it is characterized in that: a plurality of described gear reel for ropes (2) all parallel with described sheave shaft (5), and a plurality of described gear reel for ropes (2) are 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) is and two nuts of stressed joint on described pull bar (6) that 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: the elastic element permanent seat (10) that is also provided with to hold and fix described elastic element (11) on described pull bar (6).
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 lower surface of the upper end of described elastic element permanent seat (10) and described base plate (31) is greater than the safety distance between described switch (8) and the lower surface of described base plate (31).
9. according to a kind of elevator diversion sheave safety guard described in 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 |
|---|---|---|---|
| CN201420119680.4U CN203781565U (en) | 2014-03-14 | 2014-03-14 | Safety protection device for elevator diversion sheave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119680.4U CN203781565U (en) | 2014-03-14 | 2014-03-14 | Safety protection device for elevator diversion sheave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203781565U true CN203781565U (en) | 2014-08-20 |
Family
ID=51317774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420119680.4U Withdrawn - After Issue CN203781565U (en) | 2014-03-14 | 2014-03-14 | Safety protection device for elevator diversion sheave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203781565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832907A (en) * | 2014-03-14 | 2014-06-04 | 苏州富士电梯有限公司 | Elevator diversion sheave safety protection device |
| CN109052097A (en) * | 2018-09-30 | 2018-12-21 | 广东法雷奥电梯设备有限公司 | A kind of rope broken protector applied on elevator |
-
2014
- 2014-03-14 CN CN201420119680.4U patent/CN203781565U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832907A (en) * | 2014-03-14 | 2014-06-04 | 苏州富士电梯有限公司 | Elevator diversion sheave safety protection device |
| CN109052097A (en) * | 2018-09-30 | 2018-12-21 | 广东法雷奥电梯设备有限公司 | A kind of rope broken protector applied on elevator |
| CN109052097B (en) * | 2018-09-30 | 2024-06-11 | 法立奥电梯(广东)有限公司 | Rope breakage protection device applied to elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20151202 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |