CN203306870U - Automatic anti-falling prevention device of elevator cab - Google Patents
Automatic anti-falling prevention device of elevator cab Download PDFInfo
- Publication number
- CN203306870U CN203306870U CN2013201275515U CN201320127551U CN203306870U CN 203306870 U CN203306870 U CN 203306870U CN 2013201275515 U CN2013201275515 U CN 2013201275515U CN 201320127551 U CN201320127551 U CN 201320127551U CN 203306870 U CN203306870 U CN 203306870U
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- China
- Prior art keywords
- elevator
- ratchet holder
- prevention device
- automatic anti
- fixed
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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- Withdrawn - After Issue
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Abstract
The utility model discloses an automatic anti-falling prevention device of an elevator cab. The automatic anti-falling prevention device of the elevator cab comprises steel tubes which are symmetrically fixed on the two sides of the well enclosure of an elevator. Pawl supports are arranged on the steel tubes. A prevention device body, a limiting device, a contact switch and a stopping device are arranged on each pawl support. According to the automatic anti-falling prevention device of the elevator cab, the danger caused when operating personnel enter a well under the state with no safety guarantee can be avoided, therefore, potential safety hazards are reduced, and major accidents are prevented from happening.
Description
Technical field
The utility model relates to the elevator field, particularly relates to a kind of lift car automatic falling-proof holdout device.
Background technology
Elevator in maintenance process, when the maintainer opens the bottom Room behind the door by 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 defect of prior art, need especially the falling proof device on a kind of elevator, to solve the deficiencies in the prior art.
The utility model content
In order to solve the problem of prior art, the utility model 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 by triangular key, start simultaneously " automatic fall preventing device ", prevent that cage descending is the end of to.
To achieve these goals, the technical solution of the utility model 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 the stop tongue 6 on ratchet holder 3; Described only stop device comprises " C " type support 7 that is fixed on ratchet holder 3 sides, in " C " type support 7, be provided with magnet coil 8, 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 be 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 the limit switch 15 on ratchet holder 3.
According to the technical solution of the utility model, the below of steel pipe is provided with energy disperser, be used to reducing the impulsive force of car to the stop tongue.
The beneficial effects of the utility model are: 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 " automatic fall preventing device " by with contact switch, opening Room door, be in all the time closed off working state, 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, under the effect of magnetic force, promote iron core and make the stop tongue sentence mode of operation, and make only guard's valve cut off the loop of moving 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.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, describe the utility model in detail:
Fig. 1 is the front elevation of the utility model falling proof device;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is use constitution diagram of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
A kind of elevator lift car automatic falling-proof holdout device as described as 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 the stop tongue 6 on ratchet holder 3; Described only stop device comprises " C " type support 7 that is fixed on ratchet holder 3 sides, in " C " type support 7, be provided with magnet coil 8, 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 be 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 the limit switch 15 on ratchet holder 3.
Described inhibiting device comprises by support 14 and is fixed on the limit switch 15 on ratchet holder 3.The below of steel pipe 2 is provided with energy disperser 16, be used to reducing the impulsive force of car to the 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 " automatic fall preventing device " by with contact switch, opening Room door, be in all the time closed off working state, 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, under the effect of magnetic force, promote iron core and make the stop tongue sentence mode of operation, and make only guard's valve cut off the loop of moving elevator.Thereby make the elevator place out of service, can only sentence service mode.
Mode of operation of the present utility model 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, by limit switch, connect magnet coil and under the effect of electromagnetic force, pull the stop tongue on holdout device and disconnect the elevator operating loop and enter inspecting state, make the car can not be until at the bottom of hoistway.After having overhauled, along with the circuit that cuts off magnet coil of closing of Room door, due to the effect of retracing spring, the stop tongue returns to home position, and connects elevator operation circuit, replys 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 utility model is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model 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 the stop tongue (6) on ratchet holder (3);
Described only stop device comprises " C " type support (7) that is fixed on ratchet holder (3) side, in " C " type support (7), be provided with magnet coil (8), 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) be 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 the limit switch (15) on ratchet holder (3).
2. a kind of lift car automatic falling-proof holdout 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 |
|---|---|---|---|
| CN2013201275515U CN203306870U (en) | 2013-03-20 | 2013-03-20 | Automatic anti-falling prevention device of elevator cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201275515U CN203306870U (en) | 2013-03-20 | 2013-03-20 | Automatic anti-falling prevention device of elevator cab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203306870U true CN203306870U (en) | 2013-11-27 |
Family
ID=49613092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201275515U Withdrawn - After Issue CN203306870U (en) | 2013-03-20 | 2013-03-20 | Automatic anti-falling prevention device of elevator cab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203306870U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145016A (en) * | 2013-03-20 | 2013-06-12 | 苏州台菱电梯有限公司 | Automatic anti-falling prevention device for lift car |
| CN105984779A (en) * | 2016-06-30 | 2016-10-05 | 港日电梯有限公司 | Mechanical stopping device applied to home elevator |
| CN108408531A (en) * | 2018-04-11 | 2018-08-17 | 波士顿电梯（湖州）有限公司 | Elevator falling-proof safety device |
-
2013
- 2013-03-20 CN CN2013201275515U patent/CN203306870U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145016A (en) * | 2013-03-20 | 2013-06-12 | 苏州台菱电梯有限公司 | Automatic anti-falling prevention device for lift car |
| CN103145016B (en) * | 2013-03-20 | 2015-10-21 | 苏州台菱电梯有限公司 | A kind of lift car automatic falling-proof holdout device |
| CN105984779A (en) * | 2016-06-30 | 2016-10-05 | 港日电梯有限公司 | Mechanical stopping device applied to home elevator |
| CN108408531A (en) * | 2018-04-11 | 2018-08-17 | 波士顿电梯（湖州）有限公司 | Elevator falling-proof safety device |
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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: 20131127 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |