CN101700850B - Elevator stopping device - Google Patents
Elevator stopping device Download PDFInfo
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- CN101700850B CN101700850B CN200910193641A CN200910193641A CN101700850B CN 101700850 B CN101700850 B CN 101700850B CN 200910193641 A CN200910193641 A CN 200910193641A CN 200910193641 A CN200910193641 A CN 200910193641A CN 101700850 B CN101700850 B CN 101700850B
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- rope clamping
- clamping block
- velocity limiter
- car
- elevator
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Abstract
The invention provides an elevator stopping device especially used for an elevator the car of which needs stopping safely in the working area of a well hole with a smaller free space. The elevator stopping device comprises a safety tong arranged on a lift car opposite to a guide rail, wherein the safety tong is connected with a speed limiter cable through a lifting rod, and a speed limiter is connected with a speed limiter tension pulley through the speed limiter cable. The elevator stopping device further comprises a fixed seat arranged in the well hole and a progressive clamping device arranged on the fixed seat for acting on the speed limiter cable. The clamping device comprises a rope clamping block, wherein one end of the rope clamping block is connected with the fixed seat and the other end of the rope clamping block is served as a rope clamping end. The rope clamping end is positioned below the horizontal plane of the connection end and is at an acute angle with respect to the horizontal plane. With the advantages of flexible installation position, convenient operation, safety and reliability, simple structure and lower cost, the elevator stopping device can be installed at the top, the middle or the bottom of the well hole and can ensure the safety of inspection and maintenance personnel at any working area of well hole pits, car tops, well hole platforms and well hole tops.
Description
[technical field]
The present invention relates to the elevator field, especially relate to and to have the elevator safety stopping device that less clearance envelope is used for the safe stop car in the platform in well pit, car roof, the hoistway, well headroom work area.
[background technology]
Existing elevator; Particularly machine-roomless lift has a lot of parts to place among the hoistway; When the platform of maintenance and inspection personnel in well pit, car roof, hoistway, well headroom work area maintenance and inspection equipment; The additional safety device need be set,, guarantee maintenance and inspection personnel's safety so that enough survival spaces are reserved in the work area; In order to reach this purpose at well pit, well headroom; In the Chinese patent 200480044089.6; The box spare that a kind of " being used for the device that lift car safety stops " this device comprises that at least one is installed and align with the speed limit cable of car overspeed safety device with respect to vertical shaft is disclosed; And be provided with the fork spare that the joint bonded assembly has the end; The end is suitable for engaging at least one at the control position that installs and is attached to the accessory of the described speed limit cable of car overspeed safety device, and the safety that also therefore causes lift car with the braking cable stops, and on non-moving position, breaks away from from described accessory; Wherein in lift well, be bonded to each other and be positioned suitable height at the described fork spare on the control position and cable accessory; To be used for accessory and fork the engaging of part, the braking of lift car is caused at enough height places in vertical shaft, reserves at least that safe space is given on the top, cabin or the operator of silo bottom.This device is installed olivary accessory on speed limiter wire rope; In order to guarantee that elevator olive shape accessory when hoistway whole process is moved does not exert an influence to velocity limiter; Its olive shape accessory can only be installed in the scope of finite length up and down with fast device cable and car binding site, and the fork part can only be installed needs car to need near the position of stop; Make the tensioning of speed limit device cable produce the power that makes the car safety action through lifting rod in order to guarantee that olivary accessory produces when combining with the fork part; The olive shape accessory can only be installed in (being the position of the relative car of maintenance and inspection personnel) on the direction that prevents cage operation with the fork part, all receives very large restriction in the comfort feature of operation, the Applicable scope of device.Such as, if on the car roof during lift facility of inspection hoistway midway location, this Y-piece just can only be installed in the middle of the hoistway; And olivary accessory and fork part can only be installed in the bottom of car, and the maintenance and inspection personnel can't operate, check this device on the sedan-chair top, and; When the supervisory personnel repaiies in any location dimension; The fork part all must move together, and complicated operation is easy to generate safety misadventure; Perhaps at diverse location a plurality of these devices are set, cost increases and the position of maintenance and inspection is restricted.The olive shape accessory of this device and the installation strength of velocity limiter cable be difficult to guarantee, also may exert an influence to the intensity of velocity limiter cable; The complex structure of fork part, be difficult for to make, cost is higher, the anchoring strength of itself and olive shape accessory is difficult to guarantee to produce the enough power that lifts; Because the stop of car distance is difficult to accurate assurance; Stop at car is big apart from sedan-chair; And the shock absorber of fork part is provided with stroke when not enough; The stop of car will make the binding site of fork part, velocity limiter cable element, velocity limiter, car and velocity limiter cable cause serious damage, and safety and reliability are difficult to guarantee.
Therefore, provide higher, simple in structure, the lower-cost elevator stopping device of a kind of flexible for installation, easy to operate, safety and reliability real for necessary.
[summary of the invention]
The elevator device that the object of the present invention is to provide flexible, easy to operate, safe and reliable, simple in structure, the lower-cost elevator stopping device in a kind of installation site and adopt this elevator stopping device; This elevator stopping device can be installed in top, middle part or the bottom of hoistway, can guarantee the maintenance and inspection personnel's of platform, any work area of well headroom in well pit, car roof, hoistway safety.
For realizing the object of the invention, following technical scheme is provided:
The present invention provides a kind of elevator stopping device; It comprises and is arranged on safety tongs relative with guide rail on the car; Safety tongs is connected with the velocity limiter cable through lifting rod; It further comprises the permanent seat that is arranged in the hoistway, and the fixing device that is arranged on the acted on velocity limiter cable on the permanent seat.This fixing device includes rope clamping block, and this rope clamping block one end connects permanent seat, and the other end is the folder end, and this folder end and acutangulates with the angle of this horizontal surface below the horizontal surface of coupling end place.
This permanent seat can be arranged on guide rail or the well enclosure, because of the velocity limiter operated by rotary motion near well enclosure and guide rail, permanent seat is located on said guide rail or the well enclosure, but convenient location.Can be located at hoistway top, middle part or bottom.Promptly when elevator is carried out maintenance and inspection,, this is installed on mode of operation, can prevents that car from moving up the maintenance and inspection personnel are damaged if maintenance and inspection personnel equipment in the maintenance and inspection hoistway on car roof then can be parked in control position with car; If the equipment on the platform of hoistway midway location in the maintenance and inspection hoistway; But then car be parked on flat-bed direction or below the position (for example; Greater than 2m), this is installed on mode of operation, can prevent that car from moving up or down the maintenance and inspection personnel are damaged; If inspection or docking facility on the hoistway bottom platform or in well pit; Then can car from platform or the sufficiently high position of well pit (for example be parked in; Greater than 2m), this is installed on mode of operation, can prevent that car from moving down the maintenance and inspection personnel are damaged.
This fixing device comprises rope clamping block and is connected spring, in this rope clamping block wherein one be arranged on versatilely on the permanent seat, can rotate around a rotating shaft, another rope clamping block movably or be fixedly mounted on the permanent seat; And rope clamping block can gradual (mode that clamps gradually) clamp the velocity limiter cable when clamped position, this connection spring is connected between rope clamping block and the permanent seat, and gripping power is provided, can be through connecting the size of initial tension of spring adjustment gripping power.
This fixing device also comprises the locating part that rope clamping block is had position-limiting action.The folder end of this rope clamping block can belong to below the horizontal surface at coupling end, and acutangulates with the angle of this horizontal surface, and locating part is positioned at the rope clamping block top.When folder end and this horizontal surface acutangulated the position, locating part blocked rope clamping block and prevents that rope clamping block from clamping the velocity limiter cable, and velocity limiter cable fixing device is inoperative at this moment, and elevator can normally move.When elevator need be checked or keep in repair, make locating part leave rope clamping block, rope clamping block contacts with the velocity limiter cable under the effect of a gravity or a spring.If elevator is out of control or meet accident mobile; The velocity limiter cable will move with car under the effect of safety tongs lifting rod; Rope clamping block will clamp the velocity limiter cable more and more tightly under gravity or spring force and velocity limiter cable and rope clamping block function of friction this moment, if velocity limiter cable and the friction force between rope clamping block that folder rope power produces are enough to promote the safety tongs lifting rod; To make the safety tongs action, thereby make the car stop.As preferred embodiments, this fixing device also comprises the spring that lifts that rope clamping block is produced the hoisting force that makes progress, and perhaps the structure of rope clamping block is designed to by gravity folder end and can upwards rotates clamping velocity limiter cable.If this device is installed on the hoistway bottom, when car moves downwards, need to clamp the velocity limiter cable and avoid it to move up, at this moment, the folder end of rope clamping block need belong to below the horizontal surface and in an acute angle with this horizontal surface at coupling end.When locating part left rope clamping block, rope clamping block contacted with limit band device cable under spring tension or action of gravity.
Need certain stop distance during the car stop; In the stop process; Regulate spring force between rope clamping block and the permanent seat and can guarantee that existing enough friction force can guarantee the cable segment distance that can on rope clamping block, slide again; Preventing that pulling force is excessive causes damage to velocity limiter cable, stopping device, velocity limiter, car safety lifting rod and associated components, and then causes personal injury accidents.Car is by after the safety tongs stop, and car will keep certain distance with the work area, and personnel keep in repair with convenient for maintaining.
This machinery stopping device can be connected with an electric switch, and when said locating part left rope clamping block, this switch connection or disconnection realized other functions and further improve safety performance through electrical control.In addition, rope clamping block can be connected with an electrical servo mechanism, the position at place when making rope clamping block be in clamped position or elevator normally to move through electrical control.
This invention also provides a kind of elevator device that adopts aforementioned stopping device; It is included in the car that is provided with guide rail in the hoistway and can slides along guide rail; On car, be provided with the safety tongs relative with guide rail; Safety tongs is connected with the velocity limiter cable through lifting rod, and it further comprises the permanent seat that is arranged in the hoistway, and the fixing device that is arranged on the acted on velocity limiter cable on the permanent seat.This fixing device comprises rope clamping block, connects spring; And the locating part that rotating rope clamping block is had position-limiting action; This rope clamping block is arranged on the permanent seat versatilely; Can rotate around a rotating shaft, and the mode that when clamped position, can clamp gradually clamps the velocity limiter cable, this connection spring is connected between rope clamping block and the permanent seat.
In existing elevator structure; For guaranteeing the safety of its operation; Need car overspeed protection device (car upstream or downstream), promptly on car, be provided with the safety tongs relative, when the car overspeed with guide rail; The velocity limiter cable lifts lifting rod up or down, and safety tongs vises guide rail and makes the car stop; The present invention makes full use of the structure (particularly safety tongs) of existing elevator, when the maintainer keeps in repair elevator, makes locating part leave rope clamping block, and rope clamping block will contact with cable.If elevator moves, rope clamping block will clamp the velocity limiter cable under the effect of spring force, and the friction force between velocity limiter cable and the rope clamping block will promote the safety tongs lifting rod makes the safety tongs action with the car stop.Through the safety tongs stop time; Need to guarantee that certain stop distance (is that safety tongs is when beginning to safe stop from stop; Certain distance also need slide); Should allow the velocity limiter cable on rope clamping block, to slide, and can produce when sliding and be enough to promote the power that lifts that the safety tongs lifting rod is employed safety tongs.
The contrast prior art, the present invention has the following advantages:
Elevator stopping device of the present invention is flexible for installation, easy to operate, applicable area is big, safety and reliability is higher, simple in structure, cost is lower, can guarantee the maintenance and inspection personnel's of platform, any work area of well headroom in well pit, car roof, hoistway safety.
Fig. 1 is the structural representation of elevator stopping device of the present invention;
[description of drawings]
Fig. 2 is the connection structure scheme drawing of fixing device and permanent seat;
Fig. 3 is the birds-eye view of Fig. 2;
Fig. 4, Fig. 5 are two other embodiment scheme drawing of connection structure of fixing device and permanent seat.
See also Fig. 1 to Fig. 3; The elevator device that is illustrated as a kind of elevator stopping device of convenient for maintaining and uses this stopping device; The car 1 that in hoistway 7, is provided with guide rail 6 and can slides along guide rail 6 is provided with the safety tongs 3 relative with guide rail 6 on car 1, be connected with lifting rod 4 on the safety tongs 3; In hoistway 7, be provided with permanent seat 5, on permanent seat 5, be provided with the fixing device of velocity limiter 13, governor tension pulley 14 and velocity limiter cable 2.
[specific embodiment]
Wherein, Permanent seat 5 is located on hoistway 7 middle guides 6, and the fixing device of velocity limiter cable 2 comprises rope clamping block 8, connects spring 9, locating part 10, rotating shaft 11, and this rope clamping block one end connects permanent seat; The other end is the folder end; One of rope clamping block 8 folder end and coupling end place horizontal surface are in an acute angle, and are arranged at versatilely on the permanent seat through rotating shaft 11, connect spring 9 and are located between this rope clamping block 8 and the permanent seat 5; When locating part 10 leaves rope clamping block 8; Rope clamping block 8 by gravitys contact with velocity limiter cable 2, if velocity limiter cable 2 moves downwards, rope clamping block 8 will clamp velocity limiter cable 2; The friction force that produces will make lifting rod 4 actions of safety tongs 3; Safety tongs 3 clamps guide rail 6, car 1 stop motion, assurance maintenance and inspection personnel's safety.
See also Fig. 4 and Fig. 5, as another embodiment of the present invention, elevator stopping device of the present invention is installed on the hoistway bottom; When velocity limiter cable 2 upwards moves, clamp velocity limiter cable 2 and avoid it upwards to be moved further, at this moment; Rope clamping block 8 folder ends are compared with the foregoing description below the horizontal surface of coupling end place and in an acute angle with this horizontal surface, have increased a back-moving spring 12; Perhaps can the structure of rope clamping block be designed to by gravity folder end and can upwards rotate clamping velocity limiter cable 2, when locating part left rope clamping block 8, rope clamping block 8 contacted with velocity limiter cable 2 under spring 12 pulling force or action of gravity; If velocity limiter cable 2 continues upwards operation; Rope clamping block 8 will clamp velocity limiter cable 2, and the friction force of generation will make lifting rod 4 actions of safety tongs 3, and safety tongs 3 clamps guide rail 6; Car 1 stop motion, assurance maintenance and inspection personnel's safety.
In existing elevator structure,, need the car overspeed protection device for guaranteeing the safety of its operation; Promptly on car 1, be provided with the safety tongs 3 relative with guide rail 6; When car 1 overspeed, velocity limiter cable 2 lifts lifting rod 4, and safety tongs 3 vises guide rail 6 and makes car 1 stop; Present embodiment makes full use of the structure (particularly safety tongs 3) of existing elevator, and when the maintenance and inspection personnel keeped in repair elevator, rope clamping block 8 clamped velocity limiter cable 2, and lifting rod 4 makes safety tongs 3 with car 1 stop; Particularly, when elevator normally moved, rope clamping block 8 did not contact with cable, and this moment, rope clamping block 8 did not play a role; Before maintenance and inspection, locating part 10 leaves rope clamping block 8, when car moves; Rope clamping block 8 makes lifting rod 4 actions through the velocity limiter cable, and makes car 1 stop through safety tongs 3, needs certain stop distance during car 1 stop; In the stop process, rope clamping block and velocity limiter cable clamp gradually, thereby connection spring 9 is compressed and continue to provide gripping power to produce friction force; After car 1 stop, enough spaces are reserved in car 1 top or bottom, and personnel keep in repair with convenient for maintaining.
The above is merely preferred embodiment of the present invention, and protection scope of the present invention is not limited thereto, and anyly all belongs within the protection domain of the present invention based on the equivalent transformation on the technical scheme of the present invention.
Claims (9)
1. elevator stopping device, it comprises and is arranged on safety tongs relative with guide rail on the car that safety tongs is connected with the velocity limiter cable through lifting rod; Velocity limiter links to each other through the velocity limiter cable with governor tension pulley, it is characterized in that, it further comprises the permanent seat that is arranged in the hoistway; And the gradual fixing device that is arranged on the acted on velocity limiter cable on the permanent seat; This fixing device includes rope clamping block, and this rope clamping block one end connects permanent seat, and the other end is the folder end; This folder end and acutangulates with the angle of this horizontal surface below the horizontal surface of coupling end place.
2. elevator stopping device as claimed in claim 1 is characterized in that, this fixing device also comprises the spring that lifts that rope clamping block is produced the hoisting force that makes progress.
3. elevator stopping device as claimed in claim 2 is characterized in that this permanent seat is arranged on guide rail or the well enclosure.
4. elevator stopping device as claimed in claim 3; It is characterized in that; This fixing device also comprises the connection spring, and this rope clamping block is arranged on the permanent seat versatilely, can rotate around a rotating shaft; And when clamped position, can clamp the velocity limiter cable, this connection spring is connected between rope clamping block and the permanent seat.
5. elevator stopping device as claimed in claim 4 is characterized in that this fixing device also comprises the locating part that rope clamping block is had position-limiting action.
6. elevator stopping device as claimed in claim 1 is characterized in that, this fixing device comprises two rope clamping blocks that are arranged on velocity limiter cable both sides.
7. elevator stopping device as claimed in claim 1 is characterized in that, this rope clamping block is connected with an electric switch.
8. elevator stopping device as claimed in claim 1 is characterized in that, this rope clamping block is connected with an electrical servo mechanism.
9. the elevator device of any described stopping device in employing such as the claim 1～8; It is included in the car that is provided with guide rail in the hoistway and can slides along guide rail; On car, be provided with the safety tongs relative with guide rail; Safety tongs is connected with the velocity limiter cable through lifting rod, and velocity limiter links to each other through the velocity limiter cable with governor tension pulley, it is characterized in that; It further comprises the permanent seat that is arranged in the hoistway, and the fixing device that is arranged on the acted on velocity limiter cable on the permanent seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910193641A CN101700850B (en) | 2009-11-05 | 2009-11-05 | Elevator stopping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910193641A CN101700850B (en) | 2009-11-05 | 2009-11-05 | Elevator stopping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101700850A CN101700850A (en) | 2010-05-05 |
| CN101700850B true CN101700850B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910193641A Active CN101700850B (en) | 2009-11-05 | 2009-11-05 | Elevator stopping device |
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| CN (1) | CN101700850B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015173914A1 (en) * | 2014-05-14 | 2015-11-19 | 三菱電機株式会社 | Elevator apparatus |
| CN106966253A (en) * | 2017-05-26 | 2017-07-21 | 升华电梯有限公司 | A kind of elevator emergency brake system |
| CN107187988B (en) * | 2017-06-30 | 2023-03-14 | 快意电梯股份有限公司 | Elevator brake device and lifting mechanism thereof |
| CN111824875B (en) * | 2019-04-16 | 2023-02-21 | 富士达株式会社 | Cable clamping mechanism of speed regulator for elevator |
| CN111362093B (en) * | 2020-04-27 | 2024-05-24 | 重庆迈高电梯有限公司 | Elevator safety tongs lifting mechanism and elevator |
| CN112499505A (en) * | 2020-12-01 | 2021-03-16 | 广东电网能源发展有限公司 | Motor-driven hank grinds catcher |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928796A (en) * | 1987-11-25 | 1990-05-29 | Poon Otto L | Lift |
| CN1176218A (en) * | 1996-09-10 | 1998-03-18 | 株式会社东芝 | Elevator with emergency stop function, emergency stop device for elevator and its brake scotch |
| CN2677348Y (en) * | 2004-03-04 | 2005-02-09 | 黄善康 | Protective device for elevator overspeed |
| CN101269773A (en) * | 2008-05-06 | 2008-09-24 | 日立电梯（中国）有限公司 | Safe stopping elevator convenient to maintain |
-
2009
- 2009-11-05 CN CN200910193641A patent/CN101700850B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928796A (en) * | 1987-11-25 | 1990-05-29 | Poon Otto L | Lift |
| CN1176218A (en) * | 1996-09-10 | 1998-03-18 | 株式会社东芝 | Elevator with emergency stop function, emergency stop device for elevator and its brake scotch |
| CN2677348Y (en) * | 2004-03-04 | 2005-02-09 | 黄善康 | Protective device for elevator overspeed |
| CN101269773A (en) * | 2008-05-06 | 2008-09-24 | 日立电梯（中国）有限公司 | Safe stopping elevator convenient to maintain |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101700850A (en) | 2010-05-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100505 Assignee: Hitachi elevator (Chinese) Co. Ltd. stone factory Assignor: Hitachi Elevator (China) Co., Ltd. Contract record no.: 2013440000492 Denomination of invention: Elevator stopping device Granted publication date: 20120905 License type: Common License Record date: 20131028 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |