CN107673154B - Elevator power failure safety protection device - Google Patents
Elevator power failure safety protection device Download PDFInfo
- Publication number
- CN107673154B CN107673154B CN201711144470.5A CN201711144470A CN107673154B CN 107673154 B CN107673154 B CN 107673154B CN 201711144470 A CN201711144470 A CN 201711144470A CN 107673154 B CN107673154 B CN 107673154B
- Authority
- CN
- China
- Prior art keywords
- safety
- nut
- switch
- connecting plate
- elevator
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
- B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses an elevator power failure safety protection device which comprises a screw rod, a bearing nut and a safety nut, wherein a connecting plate is arranged on the bearing nut, the safety nut is arranged on the screw rod, the safety nut is positioned above the bearing nut, a limit bolt is arranged on the safety nut, a limit hole is formed in the connecting plate, and a safety switch is arranged on the connecting plate. According to the invention, the safety nut is arranged above the bearing nut, when the bearing nut fails after long-time use, the elevator drives the connecting plate and the bearing nut to rapidly slide down under the action of self gravity, at the moment, the limit bolt slides in the limit hole and is finally blocked by the limit hole, the connecting plate is prevented from continuously sliding down, meanwhile, the safety nut is contacted with the safety switch and triggers the safety switch, the safety switch feeds back a signal to the control system, and the control system commands the brake to be disconnected, so that the device stops moving, the occurrence of safety accidents caused by rapid descent of the elevator is prevented, and the use safety of the elevator is ensured.
Description
Technical Field
The invention relates to the technical field of corridor riding-instead-of-walking machines, in particular to an elevator power failure safety protection device.
Background
At present, in some old communities, as the floors of some buildings are lower than seven floors, no elevator is installed in the corridor, and the old buildings are added with the elevator, the structure of the buildings is changed, the problems of installation cost, safety and the like are also related, and great trouble is caused for the old people to go upstairs and downstairs.
In order to solve the problem that the old person is difficult to go up and down stairs, the intelligent corridor walker is needed to be directly installed between the various corridors and mainly comprises a lifter, a transmission device, a reinforcing device and a guide rail device, wherein the transmission device mainly comprises a screw rod and a bearing nut, the lifter is driven to move through the bearing nut, but due to long-time use, friction between the bearing nut and the screw rod is damaged, after the abrasion failure of threads on the bearing nut, the bearing nut is separated from the control of the threads, and slides sharply downwards along the screw rod under the action of the gravity of the lifter, so that accidents are easy to occur.
Therefore, the screw rod in the prior art has the problem that the elevator is not controlled and safety accidents occur due to the fact that the bearing nut is worn and failed in the long-term use process.
Disclosure of Invention
The invention aims to solve the technical problem that the existing screw rod has the problem that the elevator is not controlled and safety accidents occur due to the fact that the bearing nut is worn and failed in the long-term use process.
In order to solve the technical problems, the technical scheme adopted by the invention is to provide an elevator power failure safety protection device, which comprises a screw rod and a bearing nut arranged on the screw rod, wherein a connecting plate for connecting an elevator is fixedly arranged on the bearing nut, and the elevator power failure safety protection device further comprises:
the safety nut is arranged on the screw rod, a gap is arranged above the bearing nut and between the safety nut and the bearing nut, and a limit bolt is convexly arranged on the safety nut towards the direction of the connecting plate;
the connecting plate is provided with a limiting hole for the limiting bolt to slide, and one end of the connecting plate, which is close to the safety nut, is provided with a safety switch and is configured to:
during normal use, the screw drives the bearing nut and the safety nut to synchronously move;
when the power of the elevator fails, the limit bolt slides in the limit hole along with the downward sliding of the bearing nut and is finally blocked by the limit hole, and the safety nut is contacted with the safety switch and triggers the safety switch.
In the above scheme, the safety switch is in including setting up mounting panel on the connecting plate and setting up the box body of mounting panel bottom surface, be equipped with touch switch in the box body, the box body orientation one side of connecting plate wears to be equipped with switch trigger device to the configuration is:
the bearing nut fails, the safety nut slides and extrudes one end of the switch triggering device, and the other end of the switch triggering device triggers the touch switch.
In the above scheme, one end of the mounting plate is provided with an adjusting rod, an adjusting hole capable of allowing the adjusting rod to slide is formed in the connecting plate, and the distance between the safety switch and the safety nut is adjusted by changing the position of the adjusting rod in the adjusting hole.
In the above scheme, the switch triggering device and the box body are arranged at an acute angle.
In the above scheme, the free end of the switch triggering device is provided with a bump.
In the above scheme, the switch triggering device is a spring plate, a connecting rod or a lever.
In the above scheme, the connecting plate is symmetrically provided with two mounting grooves along the length direction of the connecting plate, and each mounting groove is internally provided with two limiting holes.
In the above scheme, the top of the limit bolt is provided with a stop block, and the stop block slides in the mounting groove.
In the above scheme, the safety switch is a roller swing rod type limit switch.
According to the invention, the safety nut is arranged above the bearing nut, when the bearing nut fails after long-time use, the elevator drives the connecting plate and the bearing nut to rapidly slide down under the action of self gravity, at the moment, the limit bolt slides in the limit hole and is finally blocked by the limit hole, the connecting plate is prevented from continuously sliding down, meanwhile, the safety nut is contacted with the safety switch and triggers the safety switch, the safety switch feeds back a signal to the control system, and the control system commands the brake to be disconnected, so that the device stops moving, the occurrence of safety accidents caused by rapid descent of the elevator is prevented, and the use safety of the elevator is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the front face of the connecting plate of the present invention;
FIG. 3 is a schematic view of the rear structure of the connection plate of the present invention;
fig. 4 is a schematic side view of the present invention.
Detailed Description
The invention will now be described in detail with reference to specific embodiments and accompanying drawings.
As shown in fig. 1 to 4, the elevator power failure safety protection device provided by the invention comprises a screw, a bearing nut 10 and a safety nut 20, wherein a connecting plate 30 for connecting an elevator is fixedly arranged on the bearing nut 10.
The safety nut 20 and the bearing nut 10 are both arranged on the screw rod, the safety nut 20 is arranged above the bearing nut 10, a gap is formed between the safety nut 20 and the bearing nut, a limit bolt is convexly arranged on the safety nut 20 towards the direction of the connecting plate 30, a limit hole 31 for the limit bolt 21 to slide is formed in the connecting plate 30, a safety switch is arranged at one end, close to the safety nut 20, of the connecting plate 30, and can be set as a limit switch triggered in a pressing mode, so that the safety switch is started conveniently, such as a roller swing rod type limit switch.
The application method of the invention is as follows:
during normal use, a passenger stands on the elevator, the bearing nut 10 drives the elevator to move through the connecting plate 30, at the moment, the safety nut 20 and the bearing nut 10 synchronously move, and the limit bolt 21 is arranged at one end of the limit hole 31.
After the bearing nut 10 fails, the elevator drives the connecting plate 30 and the bearing nut 10 to rapidly slide down under the action of self and passenger gravity, the limiting bolt 21 slides in the limiting hole 31 and is finally blocked by the limiting hole 31, the function of supporting the elevator can be achieved, the safety nut 20 is contacted with the safety switch and triggers the safety switch, the safety switch feeds back a signal to the control system, the control system controls the brake to start, the screw stops rotating, the elevator stops descending, electronic braking is achieved, and the safety of passengers is protected.
If the safety switch fails, the limit bolt 21 is prevented from sliding in the limit hole 31 and is finally blocked by the limit hole 31, so that the elevator can be driven to move while the elevator is supported, the elevator can be carried, and after the elevator reaches a designated position, a worker maintains the elevator again, so that the safety of the passenger is further ensured.
And through the transmission mode of bearing nut 10 and screw rod, when the sudden outage of resident building, the screw rod will stop rotating, and then makes bearing nut 10 stay in this position, prevents that the condition that the lift descends sharply from taking place after the outage from appearing, guarantees the security that the passenger used.
The safety switch comprises a mounting plate 41 arranged on the connecting plate 30 and a box body 40 arranged on the bottom surface of the mounting plate 41, a touch switch is arranged in the box body 40, a switch triggering device 42 is arranged on one side, facing the connecting plate 30, of the box body 40 in a penetrating mode, the switch triggering device 42 can be an elastic piece, a connecting rod or a lever, the structure is simple, and design difficulty is reduced. When the bearing nut 10 fails, the safety nut 20 slides to squeeze one end of the switch triggering device 42, and the other end of the switch triggering device 42 triggers the touch switch, so that the safety switch is started, a safety switch feedback signal is fed back to the control system, the control system controls the brake to start, the screw rod stops rotating, and the use safety of the lifter is ensured.
One end of the mounting plate 41 is provided with an adjusting rod, an adjusting hole for adjusting the sliding of the adjusting rod is formed in the connecting plate 30, the distance between the safety switch and the safety nut 20 is adjusted by changing the position of the adjusting rod in the adjusting hole, and the position of the safety switch can be accurately adjusted to ensure that the safety nut 20 cannot trigger the safety switch in the process of following the movement of the bearing nut 10, and after the bearing nut 10 fails, the safety nut 20 can trigger the safety switch at the first time again, a brake is started, the screw stops rotating, and the safety of passengers is ensured.
As shown in fig. 4, the switch triggering device 42 and the box body 40 are disposed at an acute angle, so that the force is applied to trigger the safety switch, and if the switch triggering device 42 is in direct contact with the safety nut 20, the end surface of the switch triggering device 42 is in a sheet shape, so that the friction force between the two is increased, and the damage of the device is accelerated, so that a bump 43 is disposed at the free end of the switch triggering device 42, the bump 43 can be disposed in a cylindrical shape, and the outer peripheral surface of the bump is in contact with the safety nut 20, so that the friction force is reduced, and the sliding is smoother.
As shown in fig. 1 and 2, the connecting plate 30 is symmetrically provided with two mounting grooves 32 along the length direction thereof, each mounting groove 32 is internally provided with two limiting holes 31, and the design of a plurality of limiting holes 31 and limiting bolts 21 reduces the stress of each limiting bolt 21, and simultaneously enables the limiting bolts 21 to bear a lifter with a larger weight, and the limiting bolts are symmetrically arranged, so that the stress of each limiting bolt 21 is uniform, and the use safety is further improved.
The top of the limit bolt 21 is provided with the stop block 22, so that the limit bolt 21 is prevented from being separated from the limit hole 31, the stop block 22 slides in the mounting groove 32, and the smoothness of the sliding of the limit bolt 21 in the limit hole 31 is improved.
According to the invention, the safety nut is arranged above the bearing nut, when the bearing nut fails after long-time use, the elevator drives the connecting plate and the bearing nut to rapidly slide down under the action of self gravity, at the moment, the limit bolt slides in the limit hole and is finally blocked by the limit hole, the connecting plate is prevented from continuously sliding down, meanwhile, the safety nut is contacted with the safety switch and triggers the safety switch, the safety switch feeds back a signal to the control system, and the control system commands the brake to be disconnected, so that the device stops moving, the occurrence of safety accidents caused by rapid descent of the elevator is prevented, and the use safety of the elevator is ensured.
The present invention is not limited to the above-described preferred embodiments, and any person who is informed of structural changes made under the teaching of the present invention should fall within the scope of the present invention, regardless of whether the technical solution is the same as or similar to the present invention.
Claims (7)
1. The utility model provides an elevator power fail safe protection device, is in including screw rod and setting bearing nut on the screw rod, the last connecting plate that is used for connecting the lift that is fixed to be equipped with of bearing nut, its characterized in that still includes:
the safety nut is arranged on the screw rod, a gap is arranged above the bearing nut, and a limit column is convexly arranged on the safety nut towards the direction of the connecting plate;
the connecting plate is equipped with two mounting grooves along its length direction symmetry, every all be equipped with two confession in the mounting groove stop bolt gliding spacing hole, stop bolt's top is equipped with the dog, the dog is in the interior slip of mounting groove, the connecting plate is close to safety nut's one end is equipped with safety switch to dispose to:
during normal use, the screw drives the bearing nut and the safety nut to synchronously move;
when the power of the elevator fails, the limit bolt slides in the limit hole along with the downward sliding of the bearing nut and is finally blocked by the limit hole, and the safety nut is contacted with the safety switch and triggers the safety switch.
2. The elevator power failure safety protection device according to claim 1, wherein the safety switch comprises a mounting plate arranged on the connecting plate and a box body arranged on the bottom surface of the mounting plate, a touch switch is arranged in the box body, and a switch triggering device is arranged on one side of the box body facing the connecting plate in a penetrating way and is configured to:
the bearing nut fails, the safety nut slides and extrudes one end of the switch triggering device, and the other end of the switch triggering device triggers the touch switch.
3. The elevator power failure safety protection device according to claim 2, wherein an adjusting rod is arranged at one end of the mounting plate, an adjusting hole for the adjusting rod to slide is arranged in the connecting plate, and the distance between the safety switch and the safety nut is adjusted by changing the position of the adjusting rod in the adjusting hole.
4. The elevator power fail safe device of claim 2, wherein the switch trigger is disposed at an acute angle to the housing.
5. The elevator power fail safe apparatus of claim 2, wherein the free end of the switch triggering device is provided with a tab.
6. The elevator power fail safe apparatus of claim 2, wherein the switch triggering means is a spring, a link, or a lever.
7. The elevator power failure safety device of claim 1, wherein the safety switch is a roller rocker limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144470.5A CN107673154B (en) | 2017-11-17 | 2017-11-17 | Elevator power failure safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144470.5A CN107673154B (en) | 2017-11-17 | 2017-11-17 | Elevator power failure safety protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107673154A CN107673154A (en) | 2018-02-09 |
| CN107673154B true CN107673154B (en) | 2023-09-08 |
Family
ID=61150062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711144470.5A Active CN107673154B (en) | 2017-11-17 | 2017-11-17 | Elevator power failure safety protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107673154B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915561A (en) * | 2019-03-20 | 2019-06-21 | 浙江巨人机电有限公司 | A kind of stair machine instead of walk jam nut mechanism |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2902995Y (en) * | 2006-04-27 | 2007-05-23 | 杭州西子孚信科技有限公司 | Driving mechanism of elevator |
| CN101994803A (en) * | 2010-11-19 | 2011-03-30 | 成都焊研威达科技股份有限公司 | Lifting nut pair with wear detector |
| CN202212745U (en) * | 2011-08-26 | 2012-05-09 | 北京新联铁科技发展有限公司 | Non-pit type bogie lifting press machine for track traffic vehicle |
| CN202704941U (en) * | 2012-05-28 | 2013-01-30 | 宁波远景汽车零部件有限公司 | Elevator with automatic chain detecting device |
| CN202946633U (en) * | 2012-12-20 | 2013-05-22 | 中国核动力研究设计院 | Safety driving nut |
| CN204057578U (en) * | 2014-07-06 | 2014-12-31 | 广东亚太西奥电梯有限公司 | A kind of screw mandrel elevator |
| CN104308201A (en) * | 2014-10-10 | 2015-01-28 | 荣成锻压机床有限公司 | Heavy vertical lathe crossbeam lifting safety protection device |
| CN205846961U (en) * | 2016-06-29 | 2016-12-28 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod |
| CN207551620U (en) * | 2017-11-17 | 2018-06-29 | 安道利佳智能科技（北京）股份公司 | Elevator power safety arrangement for disabled |
-
2017
- 2017-11-17 CN CN201711144470.5A patent/CN107673154B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2902995Y (en) * | 2006-04-27 | 2007-05-23 | 杭州西子孚信科技有限公司 | Driving mechanism of elevator |
| CN101994803A (en) * | 2010-11-19 | 2011-03-30 | 成都焊研威达科技股份有限公司 | Lifting nut pair with wear detector |
| CN202212745U (en) * | 2011-08-26 | 2012-05-09 | 北京新联铁科技发展有限公司 | Non-pit type bogie lifting press machine for track traffic vehicle |
| CN202704941U (en) * | 2012-05-28 | 2013-01-30 | 宁波远景汽车零部件有限公司 | Elevator with automatic chain detecting device |
| CN202946633U (en) * | 2012-12-20 | 2013-05-22 | 中国核动力研究设计院 | Safety driving nut |
| CN204057578U (en) * | 2014-07-06 | 2014-12-31 | 广东亚太西奥电梯有限公司 | A kind of screw mandrel elevator |
| CN104308201A (en) * | 2014-10-10 | 2015-01-28 | 荣成锻压机床有限公司 | Heavy vertical lathe crossbeam lifting safety protection device |
| CN205846961U (en) * | 2016-06-29 | 2016-12-28 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod |
| CN207551620U (en) * | 2017-11-17 | 2018-06-29 | 安道利佳智能科技（北京）股份公司 | Elevator power safety arrangement for disabled |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107673154A (en) | 2018-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11117783B2 (en) | Self-propelled elevators and elevator brake systems | |
| CA2821144C (en) | Device for actuating and resetting a safety gear | |
| US9169104B2 (en) | Activating a safety gear | |
| CN105668375B (en) | Lift facility with carriage and counterweight | |
| CN108689270B (en) | Emergency blocking device for lift car elevator | |
| CN104724565A (en) | Elevator brake device with trigger mechanism | |
| US20150083527A1 (en) | Back-up brake system of lifts | |
| CN107673154B (en) | Elevator power failure safety protection device | |
| CN112061927B (en) | Landing door safety tongs | |
| CN117023321B (en) | Active safety monitoring control elevator with host anti-toppling structure | |
| CN111392542B (en) | Bidirectional safety tongs | |
| CN207551620U (en) | Elevator power safety arrangement for disabled | |
| KR100889280B1 (en) | Rope brake for elevator | |
| CN211056446U (en) | Down rope looseness detection device of indoor elevator | |
| EP1209117B1 (en) | Elevator car parachute system with up and down actuation | |
| CN108928707B (en) | Cargo lift assembly | |
| CN111994753A (en) | Elevator safety auxiliary system | |
| CN220684373U (en) | Novel elevator rescue equipment | |
| CN114955779B (en) | Elevator first aid communication device | |
| CN210528165U (en) | Accidental car movement protection device | |
| CN114074874B (en) | Safety device for multi-car parallel elevator | |
| CN216549103U (en) | Rotary anti-falling device | |
| CN215592270U (en) | Safety alarm device for elevator | |
| CN208948619U (en) | Safety buffer device for construction elevator | |
| CN117326425B (en) | Active safety elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |