CN202272598U - Ceiling ejection preventing protection device for elevator car - Google Patents
Ceiling ejection preventing protection device for elevator car Download PDFInfo
- Publication number
- CN202272598U CN202272598U CN2011203601223U CN201120360122U CN202272598U CN 202272598 U CN202272598 U CN 202272598U CN 2011203601223 U CN2011203601223 U CN 2011203601223U CN 201120360122 U CN201120360122 U CN 201120360122U CN 202272598 U CN202272598 U CN 202272598U
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- CN
- China
- Prior art keywords
- car
- counterweight
- protection device
- steel wire
- ceiling
- 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.)
- Expired - Fee Related
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The utility model discloses a ceiling ejection preventing protection device with a reasonable structure, safety and reliability for an elevator car. The ceiling ejection preventing protection device comprises a counterweight, a car as well as a traction machine and a secondary sheave which are arranged on a main supporting beam, wherein the counterweight and the car are respectively connected with the traction machine and the secondary sheave through a counterweight side steel wire rope and a car steel wire rope; a rope clamper is arranged on the counterweight side steel wire rope; a bow knocking mechanism of the rope clamper is arranged at the upper limiting position of the car and is connected with a limiting switch of the car; when the elevator car upwards moves to the upper limiting position, the limiting switch of the car is used for opening the bow knocking mechanism and enabling the rope clamper to act and clamp the counterweight side steel wire rope; even if the traction machine continuously moves, since the counterweight loses a pull force, the steel wire rope skids on a traction wheel of the traction machine and the car cannot continuously upwards move, and further accidents caused by ceiling ejection of the car are avoided and the life safety of passengers in the elevator is better protected.
Description
Technical field
The utility model relates to a kind of elevator, is specifically related to the anti-over-hoisting protection device of a kind of lift car.
Background technology
Elevator is the requisite transportation meanss of high buildings and large mansions, and traction elevator is to rely on towing machine to drive, and friction force drives cage operation between traction sheave and the steel rope, the effectively closed car stop reliably that guarantees of drg.Therefore under the situation of the counterweight amount of stressing greater than cage side weight, it all is possibly cause the ascending for elevator hypervelocity that any one link of transmission, traction and braking lost efficacy, and will cause rushing to summit when serious.Therefore the anti-over-hoisting protection device of a safe and reliable lift car need be installed, with the life security of protection elevator passenger on elevator.
Summary of the invention
In order to address the above problem, the utility model provides a kind of rational in infrastructure, safe and reliable lift car to prevent over-hoisting protection device.
The utility model is that the technical scheme that its problem of solution is adopted is:
A kind of lift car is prevented over-hoisting protection device; Comprise counterweight, car and be installed in towing machine and the double wrap sheave on the main bearing beam; Said counterweight and car are respectively through being connected with double wrap sheave with towing machine respectively with car car steel rope the heavy side steel rope; Said the heavy side steel rope is provided with wire holder, the bow mechanism that hits of wire holder is installed in car limes superiors position and is connected with a car limit switch.
In the utility model, said wire holder is installed in the below of towing machine through installation channel-section steel and channel-section steel fixed mount.
In the utility model, said wire holder is installed in the position of center line to the heavy side steel rope.
The beneficial effect of the utility model is: the utility model is installed in wire holder on the heavy side steel rope; Be installed in the bow mechanism that hits of wire holder car limes superiors position and be connected with a car limit switch, when lift car was up to the limes superiors position, the car limit switch was opened to hit bow mechanism and wire holder is moved and is clamped the heavy side steel rope; Even towing machine is rotated further; Because counterweight loses pulling force, steel rope skids on the traction sheave of towing machine, and car can not continue up to move; Thereby avoided up unexpected generation of rushing to summit of car, protected the life security of elevator passenger well.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Fig. 1 is the structural representation of present embodiment;
Fig. 2 is the mounting structure scheme drawing of wire holder.
The specific embodiment
With reference to Fig. 1, Fig. 2; A kind of rational in infrastructure, the safe and reliable lift car that the utility model provided is prevented over-hoisting protection device; Comprise counterweight, car and be installed in towing machine 1 and the double wrap sheave 2 on the main bearing beam; Said counterweight is connected through heavy side steel rope 3 is taken turns with after-combustion 2 with towing machine 1 respectively with car steel rope 4 respectively with car, said heavy side steel rope 3 is provided with wire holder 5, and the bow mechanism that hits of wire holder 5 is installed in car limes superiors position and is connected with a car limit switch.
As preferred embodiment, because in the process of stop, wire holder 5 can receive huge pulling force, for wire holder 5 installation ground are more firmly firm, wire holder 5 is installed in the below of towing machine 1 through installation channel-section steel 6 and channel-section steel fixed mount 7.In order to make wire holder 5 stressed more stable, said wire holder 5 is installed in the position of center line to heavy side steel rope 3.
The utility model is installed in wire holder 5 on the heavy side steel rope 3, is installed in the bow mechanism that hits of wire holder 5 car limes superiors position and is connected with a car limit switch, when lift car is up to the limes superiors position; When counterweight compresses the energy disperser of hoistway bottom fully; The car limit switch is opened and is hit bow mechanism and wire holder 5 actions are clamped heavy side steel rope 3, even towing machine 1 is rotated further, because counterweight loses pulling force; Steel rope skids on the traction sheave of towing machine 1; Car can not continue up to move, thereby has avoided up unexpected generation of rushing to summit of car, has protected the life security of elevator passenger well.
Certainly, the utility model is except above-mentioned embodiment, and other equivalent technical solutions also should be within its protection domain.
Claims (3)
1. a lift car is prevented over-hoisting protection device; Comprise counterweight, car and be installed in towing machine (1) and the double wrap sheave (2) on the main bearing beam; It is characterized in that: said counterweight is connected through heavy side steel rope (3) is taken turns with after-combustion (2) with towing machine (1) respectively with car steel rope (4) respectively with car; Said heavy side steel rope (3) is provided with wire holder (5), the bow mechanism that hits of wire holder (5) is installed in car limes superiors position and is connected with a car limit switch.
2. a kind of lift car according to claim 1 is prevented over-hoisting protection device, it is characterized in that: said wire holder (5) is installed in the below of towing machine (1) through installation channel-section steel (6) and channel-section steel fixed mount (7).
3. a kind of lift car according to claim 1 is prevented over-hoisting protection device, it is characterized in that: said wire holder (5) is installed in the position of center line to heavy side steel rope (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203601223U CN202272598U (en) | 2011-09-23 | 2011-09-23 | Ceiling ejection preventing protection device for elevator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203601223U CN202272598U (en) | 2011-09-23 | 2011-09-23 | Ceiling ejection preventing protection device for elevator car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202272598U true CN202272598U (en) | 2012-06-13 |
Family
ID=46192971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203601223U Expired - Fee Related CN202272598U (en) | 2011-09-23 | 2011-09-23 | Ceiling ejection preventing protection device for elevator car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202272598U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771216A (en) * | 2012-10-24 | 2014-05-07 | 苏州新达电扶梯部件有限公司 | Installation steel channel of wire holder |
| CN112141840A (en) * | 2019-06-27 | 2020-12-29 | 上海三菱电梯有限公司 | Car roof personnel anti-collision device |
| CN113830641A (en) * | 2021-09-15 | 2021-12-24 | 康力电梯股份有限公司 | Uplink overspeed protection device |
-
2011
- 2011-09-23 CN CN2011203601223U patent/CN202272598U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771216A (en) * | 2012-10-24 | 2014-05-07 | 苏州新达电扶梯部件有限公司 | Installation steel channel of wire holder |
| CN112141840A (en) * | 2019-06-27 | 2020-12-29 | 上海三菱电梯有限公司 | Car roof personnel anti-collision device |
| CN113830641A (en) * | 2021-09-15 | 2021-12-24 | 康力电梯股份有限公司 | Uplink overspeed protection device |
| CN113830641B (en) * | 2021-09-15 | 2024-05-07 | 康力电梯股份有限公司 | Up-going overspeed protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20200923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |