CN103145016A - Automatic anti-falling prevention device for lift car - Google Patents
Automatic anti-falling prevention device for lift car Download PDFInfo
- Publication number
- CN103145016A CN103145016A CN201310089094XA CN201310089094A CN103145016A CN 103145016 A CN103145016 A CN 103145016A CN 201310089094X A CN201310089094X A CN 201310089094XA CN 201310089094 A CN201310089094 A CN 201310089094A CN 103145016 A CN103145016 A CN 103145016A
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- Prior art keywords
- lift car
- ratchet holder
- fixed
- elevator
- falling prevention
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- 230000002265 prevention Effects 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 230000002401 inhibitory effect Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The invention discloses an automatic anti-falling prevention device for a lift car. The automatic anti-falling prevention device for the lift car comprises steel pipes symmetrically fixed on two sides of a lift hoistway wall, wherein a pawl rack is arranged on the steel pipes; and a blocking device, a limiting device, a contact switch and a stopping device are arranged on the pawl rack. According to the automatic anti-falling prevention device for the lift car, the danger that operating personnel enter into a hoistway without security assurance can be avoided, so that the potential safety hazard is reduced, and the occurrence of major accidents is avoided.
Description
Technical field
The present invention relates to the elevator field, particularly relate to a kind of lift car automatic falling-proof holdout device.
Background technology
Elevator is in maintenance process, when the maintainer opens the bottom Room behind the door with triangular key, (because the hoistway that installs elevator additional is generally without pit or shallow pit), the risk that cage descending is arranged when the maintainer enters hoistway or fall.Present case, when elevator reparing, operating personal generally in the Room outdoors full position hang alarming sign or place movable fence outside door gangway, the Room, isolation passageway and gangway, but that is to the safeguard procedures of pit elevator or conventional elevator hoistways are arranged, to without pit or shallow pit elevator hoistway bottom still without any protective equipment, can not guarantee personal security by actv..
In sum, for the defective of prior art, need especially the falling proof device on a kind of elevator, to solve the deficiencies in the prior art.
Summary of the invention
In order to solve the problem of prior art, the present invention proposes in a kind of safe and reliable (installing additional) elevator hoistways " automatic fall preventing device ", more effectively ensure the life security of personnel in hoistway, when the maintainer opens Room door with triangular key, start simultaneously " automatic fall preventing device ", prevent that cage descending is the end of to.
To achieve these goals, technical scheme of the present invention is as follows: a kind of elevator lift car automatic falling-proof holdout device, comprise that symmetry is fixed on the steel pipe 2 of elevator shaft wall both sides, steel pipe 2 is provided with ratchet holder 3, ratchet holder 3 is provided with holdout device, limit switch 15 and guard's valve 4 only, and described holdout device comprises by rotating shaft 5 and is fixed on stop tongue 6 on ratchet holder 3; Described only stop device comprises " C " type support 7 that is fixed on ratchet holder 3 sides, be provided with magnet coil 8 in " C " type support 7, the lower end of the interior iron core 10 of described magnet coil 8 is flexibly connected by connecting rod 11 and rotating shaft 5, the upper end of the interior iron core 10 of magnet coil 8 is provided with retracing spring 12, and the upper end of retracing spring 12 is provided with the catch 13 that is connected with iron core 10; Described only guard's valve 4 is arranged on the below of catch 13 and is bolted on the upper end of ratchet holder 3;
Described inhibiting device comprises by support 14 and is fixed on limit switch 15 on ratchet holder 3.
Technical scheme according to the present invention is described, and the below of steel pipe is provided with energy disperser, is used for reducing car to the impulsive force of stop tongue.
The invention has the beneficial effects as follows: this device is when off working state, retracing spring is held stop tongue assembly, making the stop tongue is closure state, the switch of Room door is to lean on the mechanical force of gate door machine automatically to open or close, so long as not be in all the time closed off working state by " automatic fall preventing device " of opening Room door with contact switch, do not affect the normal switch door of elevator operation and personnel's discrepancy.When this device must be opened Room door by contact switch, just enter mode of operation.The specialized maintenance personnel use triangular key spin hall door triangulation chain assembly, the rotation band moving contact switch of triangulation chain assembly, electric current enters magnet coil by the limit switch of normally off, promote iron core and make the stop tongue sentence mode of operation under the effect of magnetic force, and make the only loop of guard's valve cut-out operation elevator.Thereby make the elevator place out of service, can avoid the operating personnel in the danger that there is no to enter under the safety control state hoistway, thereby reduce potential safety hazard, avoid grave accident to occur.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the front elevation of falling proof device of the present invention;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is use constitution diagram of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
A kind of elevator lift car automatic falling-proof holdout device as described in Fig. 1 to Fig. 3, comprise that symmetry is fixed on the steel pipe 2 of elevator shaft wall both sides, steel pipe 2 is provided with ratchet holder 3, ratchet holder 3 is provided with holdout device, limit switch 15 and guard's valve 4 only, and described holdout device comprises by rotating shaft 5 and is fixed on stop tongue 6 on ratchet holder 3; Described only stop device comprises " C " type support 7 that is fixed on ratchet holder 3 sides, be provided with magnet coil 8 in " C " type support 7, the lower end of the interior iron core 10 of described magnet coil 8 is flexibly connected by connecting rod 11 and rotating shaft 5, the upper end of the interior iron core 10 of magnet coil 8 is provided with retracing spring 12, and the upper end of retracing spring 12 is provided with the catch 13 that is connected with iron core 10; Described only guard's valve 4 is arranged on the below of catch 13 and is bolted on the upper end of ratchet holder 3;
Described inhibiting device comprises by support 14 and is fixed on limit switch 15 on ratchet holder 3.
Described inhibiting device comprises by support 14 and is fixed on limit switch 15 on ratchet holder 3.The below of steel pipe 2 is provided with energy disperser 16, is used for reducing car to the impulsive force of stop tongue.
This device is when off working state, retracing spring is held stop tongue assembly, making the stop tongue is closure state, the switch of Room door is to lean on the mechanical force of gate door machine automatically to open or close, so long as not be in all the time closed off working state by " automatic fall preventing device " of opening Room door with contact switch, do not affect the normal switch door of elevator operation and personnel's discrepancy.When this device must be opened Room door by contact switch, just enter mode of operation.The specialized maintenance personnel use triangular key spin hall door triangulation chain assembly, the rotation band moving contact switch of triangulation chain assembly, electric current enters magnet coil by the limit switch of normally off, promote iron core and make the stop tongue sentence mode of operation under the effect of magnetic force, and make the only loop of guard's valve cut-out operation elevator.Thereby make the elevator place out of service, can only sentence service mode.
Mode of operation of the present invention is, the specialized maintenance personnel are by the triangular key spin hall door contact switch of hoistway door special use, the make contact switch, electric current passes through limit switch, connect magnet coil by limit switch and pull the stop tongue on holdout device and disconnect the elevator operating loop under the effect of electromagnetic force and enter inspecting state, make the car can not be until at the bottom of hoistway.After maintenance was completed, along with the circuit that cuts off magnet coil of closing of Room door, due to the effect of retracing spring, the stop tongue returned to the home position, and connected elevator operation circuit, replied off-position, and elevator enters normal operation.Can avoid like this operating personnel in the danger that there is no to enter under the safety control state hoistway, thereby reduce potential safety hazard, avoid grave accident to occur.
The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and specification sheets just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. lift car automatic falling-proof holdout device, it is characterized in that, comprise that symmetry is fixed on the steel pipe of elevator shaft wall both sides (2), steel pipe (2) is provided with ratchet holder (3), ratchet holder (3) is provided with holdout device, limit switch (15) and guard's valve (4) only, and described holdout device comprises by rotating shaft (5) and is fixed on stop tongue (6) on ratchet holder (3);
Described only stop device comprises " C " type support (7) that is fixed on ratchet holder (3) side, be provided with magnet coil (8) in " C " type support (7), the lower end of the interior iron core (10) of described magnet coil 8 is flexibly connected by connecting rod (11) and rotating shaft (5), the upper end of the interior iron core (10) of magnet coil 8 is provided with retracing spring (12), and the upper end of retracing spring (12) is provided with the catch (13) that is connected with iron core (10);
Described only guard's valve (4) is arranged on the below of catch (13) and is bolted on the upper end of ratchet holder (3);
Described inhibiting device comprises by support (14) and is fixed on limit switch (15) on ratchet holder (3).
2. lift car automatic fall preventing device according to claim 1, is characterized in that, the below of steel pipe (2) is provided with energy disperser (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089094.XA CN103145016B (en) | 2013-03-20 | 2013-03-20 | A kind of lift car automatic falling-proof holdout device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089094.XA CN103145016B (en) | 2013-03-20 | 2013-03-20 | A kind of lift car automatic falling-proof holdout device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103145016A true CN103145016A (en) | 2013-06-12 |
| CN103145016B CN103145016B (en) | 2015-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310089094.XA Active CN103145016B (en) | 2013-03-20 | 2013-03-20 | A kind of lift car automatic falling-proof holdout device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103145016B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307119A (en) * | 2021-04-28 | 2021-08-27 | 赵霄雯 | Be applied to safety arrangement for maintenance of elevator pit |
| US11691847B2 (en) | 2019-06-20 | 2023-07-04 | Tk Elevator Corporation | Elevator travel blocking apparatus |
Citations (12)
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|---|---|---|---|---|
| JPH09151053A (en) * | 1995-11-29 | 1997-06-10 | Hitachi Building Syst Co Ltd | Fixing device for car of elevator |
| US5727657A (en) * | 1995-01-31 | 1998-03-17 | Inventio Ag | Apparatus for blocking elevator car travel |
| CN2416081Y (en) * | 2000-03-21 | 2001-01-24 | 蒋志明 | Device for floor-levelling for construction elevator |
| CN2447312Y (en) * | 2000-10-17 | 2001-09-12 | 虞戟 | Floor-levelling block for elevator car |
| JP2004043140A (en) * | 2002-07-12 | 2004-02-12 | Hitachi Building Systems Co Ltd | Safety device of elevator |
| CN101134547A (en) * | 2006-08-30 | 2008-03-05 | 上海三菱电梯有限公司 | Elevator car fixing device |
| CN101462665A (en) * | 2007-12-17 | 2009-06-24 | 白士良 | Elevator safety level apparatus with multiple startup modes |
| CN101472825A (en) * | 2006-06-30 | 2009-07-01 | 奥蒂斯电梯公司 | Safety device for ensuring minimum space on top or bottom of elevator well channel when examining as well as elevator with the safety device |
| CN202265282U (en) * | 2011-09-29 | 2012-06-06 | 苏州富士电梯有限公司 | Safety device for overhaul of elevator |
| CN102887409A (en) * | 2012-10-09 | 2013-01-23 | 长春理工大学 | Vertical-lifting elevator anti-falling protection device |
| CN202754658U (en) * | 2012-05-22 | 2013-02-27 | 浙江西子重工机械有限公司 | Car locking and linking device |
| CN203306870U (en) * | 2013-03-20 | 2013-11-27 | 苏州台菱电梯有限公司 | Automatic anti-falling prevention device of elevator cab |
-
2013
- 2013-03-20 CN CN201310089094.XA patent/CN103145016B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5727657A (en) * | 1995-01-31 | 1998-03-17 | Inventio Ag | Apparatus for blocking elevator car travel |
| JPH09151053A (en) * | 1995-11-29 | 1997-06-10 | Hitachi Building Syst Co Ltd | Fixing device for car of elevator |
| CN2416081Y (en) * | 2000-03-21 | 2001-01-24 | 蒋志明 | Device for floor-levelling for construction elevator |
| CN2447312Y (en) * | 2000-10-17 | 2001-09-12 | 虞戟 | Floor-levelling block for elevator car |
| JP2004043140A (en) * | 2002-07-12 | 2004-02-12 | Hitachi Building Systems Co Ltd | Safety device of elevator |
| CN101472825A (en) * | 2006-06-30 | 2009-07-01 | 奥蒂斯电梯公司 | Safety device for ensuring minimum space on top or bottom of elevator well channel when examining as well as elevator with the safety device |
| CN101134547A (en) * | 2006-08-30 | 2008-03-05 | 上海三菱电梯有限公司 | Elevator car fixing device |
| CN101462665A (en) * | 2007-12-17 | 2009-06-24 | 白士良 | Elevator safety level apparatus with multiple startup modes |
| CN202265282U (en) * | 2011-09-29 | 2012-06-06 | 苏州富士电梯有限公司 | Safety device for overhaul of elevator |
| CN202754658U (en) * | 2012-05-22 | 2013-02-27 | 浙江西子重工机械有限公司 | Car locking and linking device |
| CN102887409A (en) * | 2012-10-09 | 2013-01-23 | 长春理工大学 | Vertical-lifting elevator anti-falling protection device |
| CN203306870U (en) * | 2013-03-20 | 2013-11-27 | 苏州台菱电梯有限公司 | Automatic anti-falling prevention device of elevator cab |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11691847B2 (en) | 2019-06-20 | 2023-07-04 | Tk Elevator Corporation | Elevator travel blocking apparatus |
| CN113307119A (en) * | 2021-04-28 | 2021-08-27 | 赵霄雯 | Be applied to safety arrangement for maintenance of elevator pit |
| CN113307119B (en) * | 2021-04-28 | 2022-08-16 | 赵霄雯 | Be applied to safety arrangement for maintenance of elevator pit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103145016B (en) | 2015-10-21 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240324 Address after: No. 55, Xinta Shenlong Road, Lili Town, Wujiang District, Suzhou City, Jiangsu Province, 215200 Patentee after: SHENLONG ELEVATOR Co.,Ltd. Country or region after: China Address before: 215214 North She, Wujiang Fenhu High tech Industrial Development Zone, Suzhou City, Jiangsu Province (intersection of Xinli Road and Songyang Road) Patentee before: SUZHOU TAILING ELEVATOR Co.,Ltd. Country or region before: China |