CN112390111B - Elevator safety braking device - Google Patents
Elevator safety braking device Download PDFInfo
- Publication number
- CN112390111B CN112390111B CN202010673519.1A CN202010673519A CN112390111B CN 112390111 B CN112390111 B CN 112390111B CN 202010673519 A CN202010673519 A CN 202010673519A CN 112390111 B CN112390111 B CN 112390111B
- Authority
- CN
- China
- Prior art keywords
- elevator
- sealing plug
- elevator car
- partition plate
- buffer
- 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
Images
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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
-
- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
-
- 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
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
-
- 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
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/284—Buffer-stops for cars, cages, or skips mounted on cars or counterweights
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1215—Checking means specially adapted for ropes or cables
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses an elevator safety braking device which comprises an elevator shaft wall, a lifting rail, an elevator car, a rail brake, an airbag box, a rail lug baffle, an airtight partition plate, a buffer column, a communication hole, a sealing valve, an airtight buffer bin, a buffer bin communication pipe, a communication pipe sealing plug, a sealing plug spring, a sealing plug trigger ejector rod, a bearing plate, an elevator tractor, a traction steel wire rope, a steel wire rope monitor and an elevator car distance sensor, wherein the elevator shaft wall is provided with a lifting rail; a sealing plug trigger ejector rod is arranged in the lifting track at the bottom end of the elevator shaft wall body, the top end of the sealing plug trigger ejector rod props against a track hanger baffle arranged in the lifting track, and the track hanger baffle is located at the early warning height; the bottom end of the elevator car is provided with an air bag box; the bottom end of the elevator shaft wall body is provided with an airtight partition plate, and the airtight partition plate is installed in the lifting track through the edge; and a buffer plate is arranged above the airtight partition plate through a buffer column. The invention has the characteristics of repeated buffering and stable braking.
Description
Technical Field
The invention relates to an elevator safety braking device, in particular to an elevator safety braking device with multiple buffering and stable braking relaxation.
Background
With the development of modern industry, elevators as a means of transportation are becoming more and more closely connected with our lives. The elevator brings convenience to people, and meanwhile, the fault of the elevator directly threatens the life safety of people. The elevator brake is particularly important as a safety guarantee for elevators.
The ubiquitous structure of present elevator stopper is too complicated, and braking reaction speed is slow, and the traction force of speed limit wheel rope is not enough, leads to pressing from both sides tight dynamics inadequately, unable quick braking, tests the speed inaccurate, and it is unusual to appear braking, causes elevator car to fall unusually, causes injury and damage to elevator equipment and taking personnel.
Disclosure of Invention
The invention aims to provide an elevator safety braking device which has multiple buffering and stable braking relaxation.
The purpose of the invention can be realized by the following technical scheme:
an elevator safety braking device comprises an elevator shaft wall, a lifting rail, an elevator car, a rail brake, an air bag box, a rail hanger baffle, an airtight partition plate, a buffer column, a communication hole, a sealing valve, an airtight buffer bin, a buffer bin communication pipe, a communication pipe sealing plug, a sealing plug spring, a sealing plug trigger ejector rod, a bearing plate, an elevator tractor, a traction steel wire rope, a steel wire rope monitor and an elevator car distance sensor;
a sealing plug trigger ejector rod is arranged in the lifting track at the bottom end of the elevator shaft wall body, the top end of the sealing plug trigger ejector rod props against a track hanger baffle arranged in the lifting track, and the track hanger baffle is located at the early warning height;
the bottom end of the elevator car is provided with an air bag box;
the bottom end of the elevator shaft wall body is provided with an airtight partition plate, and the airtight partition plate is installed in the lifting track through the edge; a buffer plate is arranged above the airtight partition plate through a buffer column;
the upper surface of the airtight partition board is provided with communicating holes, and a plurality of communicating holes penetrate through the upper end and the lower end of the airtight partition board; a sealing valve is arranged on the lower surface of the airtight partition plate below the communicating hole; an airtight buffer bin is arranged in the elevator shaft wall body below the airtight partition plate;
the bottom end of the sealing plug triggering ejector rod is connected with the top end of the communicating pipe sealing plug; a sealing plug spring is arranged between the bottom end of the sealing plug of the communicating pipe and the bottom of the elevator shaft;
an extension edge is arranged on the outer side of the bottom end of the communicating pipe sealing plug;
a lifting rail is arranged on the inner side wall of the elevator shaft wall body, an elevator car is sleeved on the lifting rail, and rail brakes are arranged in the lifting rails at the upper end and the lower end of the elevator car;
a bearing plate is arranged at the top end of the elevator shaft above the elevator car, an elevator traction machine is arranged on the bearing plate, and the elevator traction machine is connected with the top end of the elevator car through a traction steel wire rope;
a steel wire rope monitor is arranged on the bearing plate on one side of the traction steel wire rope, and the steel wire rope monitor is over against the traction steel wire rope;
bearing plate below is provided with elevator car apart from the inductor, and elevator car is just to elevator car top apart from the inductor.
The invention provides an elevator safety braking device which has the characteristics of repeated buffering and stable braking relaxation. The invention has the beneficial effects that: when the elevator car falls or abnormally descends, the rail brake at the bottom side of the elevator car impacts the rail suspension loop baffle plate to break the rail suspension loop baffle plate; a communicating pipe sealing plug at the bottom end of the rail suspension loop baffle is plugged into the buffer bin communicating pipe under the action of the restoring force of the sealing plug spring to block the communication of the buffer bin communicating pipe; when the rail hangers baffle is broken, the buffer control signal is triggered, and the buffer control signal controls the safety air bag box through the controller, so that the safety air bag box explodes the air bag, and the air bag buffer effect is achieved on the elevator car;
when the safety airbag box at the bottom end of the elevator car explodes, the elevator car continuously falls, the airbag is in contact with the buffer plate, and secondary buffering is achieved through the buffer column;
after the elevator car is subjected to secondary buffering, the elevator car is carried with the airtight partition plate to continue to press down in the process of continuing to fall, the sealing valve is immediately closed, the communicating pipe of the buffering bin is blocked by matching with the communicating pipe sealing plug, so that the elevator car compresses air in the airtight buffering bin through the airtight partition plate, and the elevator car is subjected to tertiary buffering through the air compression effect in the airtight buffering bin; the device enhances the braking force of the device through the braking force of the track brake and the three-time buffering action of the safety air bag box, the buffering column and the airtight buffering bin, and the braking action is relatively mild;
the communicating pipe sealing plug compresses a sealing plug spring under the action of a sealing plug triggering ejector rod and a rail suspension loop baffle plate, so that the communicating pipe sealing plug is partially pushed out of the communicating pipe of the buffering bin, and the buffering bin communicating pipe is communicated with the air outside the elevator shaft and the airtight buffering bin; the influence of water accumulation, moisture and high temperature in the airtight buffer bin on the service life of equipment is avoided;
the edge extension avoids the abnormal air tightness caused by popping out the buffer bin communicating pipe when the communicating pipe sealing plug is plugged into the buffer bin communicating pipe;
the steel wire rope monitor monitors the abrasion or abnormal condition of the traction steel wire rope before passing through the steel wire rope monitor, and the danger caused by the breakage of the traction steel wire rope is avoided;
elevator car apart from inductor monitoring elevator car's displacement, when elevator car displacement or move the speed unusual, send emergency braking information to the controller, the track stopper carries out emergency braking to elevator car, and simultaneously, elevator car sends alarm information and gives remote monitoring server, in time reminds elevator monitoring personnel.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an elevator safety braking apparatus according to the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is an enlarged view of fig. 1 at B.
Detailed Description
The purpose of the invention can be realized by the following technical scheme:
an elevator safety braking device is disclosed, and referring to fig. 1-3, the elevator safety braking device comprises an elevator shaft wall 1, a lifting rail 2, an elevator car 3, a rail brake 4, an airbag box 5, a rail hanger baffle 6, an airtight partition 7, a buffer plate 8, a buffer column 9, a communication hole 10, a sealing valve 11, an airtight buffer bin 12, a buffer bin communication pipe 13, a communication pipe sealing plug 14, a sealing plug spring 15, a sealing plug trigger ejector rod 16, a bearing plate 17, an elevator tractor 18, a traction steel wire rope 19, a steel wire rope monitor 20 and an elevator car distance sensor 21;
a sealing plug trigger ejector rod 16 is arranged in the lifting track 2 at the bottom end of the elevator shaft wall body 1, the top end of the sealing plug trigger ejector rod 16 props against a track suspension loop baffle 6 arranged in the lifting track 2, and the track suspension loop baffle 6 is located at the early warning height;
the bottom end of the elevator car 3 is provided with an air bag box 5; when the elevator car 3 falls or abnormally descends, the rail brake 4 at the bottom side of the elevator car 3 impacts the rail suspension loop baffle 6, so that the rail suspension loop baffle 6 is broken off; a communicating pipe sealing plug 14 at the bottom end of the track suspension loop baffle 6 is plugged into the buffer bin communicating pipe 13 under the action of the restoring force of a sealing plug spring 15, so that the communication of the buffer bin communicating pipe 13 is blocked; when the rail suspension loop baffle 6 is broken, a buffer control signal is triggered, and the buffer control signal controls the safety air bag box 5 through the controller, so that the safety air bag box 5 explodes an air bag to play an air bag buffer role on the elevator car 3;
the bottom end of the elevator shaft wall 1 is provided with an airtight partition plate 7, and the airtight partition plate 7 is installed in the lifting track 2 through the edge; a buffer plate 8 is arranged above the airtight partition plate 7 through a buffer column 9; after the safety airbag box 5 at the bottom end of the elevator car 3 explodes, the elevator car 3 continues to fall, the airbag is in contact with the buffer plate 8, and secondary buffering is achieved through the buffer column 9;
the upper surface of the airtight partition plate 7 is provided with communication holes 10, and the communication holes 10 penetrate through the upper end and the lower end of the airtight partition plate 7; a sealing valve 11 is arranged on the lower surface of the airtight partition plate 7 below the communication hole 10; an airtight buffer bin 12 is arranged in the elevator shaft wall 1 below the airtight partition plate 7; after the elevator car 3 is subjected to secondary buffering, in the process of continuously falling, the elevator car 3 carries the airtight partition plate 7 to continuously press down, the sealing valve 11 is immediately closed, the communicating pipe 13 of the buffering cabin is blocked by matching with the communicating pipe sealing plug 14, so that the elevator car 3 compresses air in the airtight buffering cabin 12 through the airtight partition plate 7, and the elevator car 3 is subjected to tertiary buffering through the air compression effect in the airtight buffering cabin 12; the device enhances the braking force of the device through the braking force of the track brake 4 and the tertiary buffering action of the safety air bag box 5, the buffering column 9 and the airtight buffering cabin 12, and the braking action is relatively moderate;
the bottom end of the sealing plug trigger ejector rod 16 is connected with the top end of the communicating pipe sealing plug 14; a sealing plug spring 15 is arranged between the bottom end of the communicating pipe sealing plug 14 and the bottom of the elevator shaft; the communicating pipe sealing plug 14 compresses the sealing plug spring 15 under the action of the sealing plug trigger ejector rod 16 and the track hanger baffle 6, so that the communicating pipe sealing plug 14 is partially pushed out of the buffer bin communicating pipe 13, and the buffer bin communicating pipe 13 is communicated with the airtight buffer bin 12 and air outside the elevator shaft; the influence of water accumulation, moisture and high temperature in the airtight buffer bin 12 on the service life of equipment is avoided;
an edge is arranged on the outer side of the bottom end of the communicating pipe sealing plug 14, and the edge is extended to prevent the communicating pipe sealing plug 14 from popping out of the buffer bin communicating pipe 13 when being plugged into the buffer bin communicating pipe 13, so that the air tightness is abnormal;
a lifting track 2 is arranged on the inner side wall of the elevator shaft wall 1, an elevator car 3 is sleeved on the lifting track 2, and track brakes 4 are arranged in the lifting tracks 2 at the upper end and the lower end of the elevator car 3;
a bearing plate 17 is arranged at the top end of the elevator shaft above the elevator car 3, an elevator traction machine 18 is arranged on the bearing plate 17, and the elevator traction machine 18 is connected with the top end of the elevator car 3 through a traction steel wire rope 19;
a steel wire rope monitor 20 is arranged on the bearing plate 17 on one side of the traction steel wire rope 19, the steel wire rope monitor 20 is over against the traction steel wire rope 19, the steel wire rope monitor 20 monitors the abrasion or abnormal condition of the traction steel wire rope 19 before passing through the steel wire rope monitor 20, and the danger caused by the breakage of the traction steel wire rope 19 is avoided;
The working principle of the invention is as follows:
when the elevator car 3 falls or descends abnormally, the rail brake 4 at the bottom side of the elevator car 3 impacts the rail suspension loop baffle 6, so that the rail suspension loop baffle 6 is broken off; a communicating pipe sealing plug 14 at the bottom end of the track suspension loop baffle 6 is plugged into the buffer bin communicating pipe 13 under the action of the restoring force of a sealing plug spring 15, so that the communication of the buffer bin communicating pipe 13 is blocked; when the rail suspension loop baffle 6 is broken, a buffer control signal is triggered, and the buffer control signal controls the safety air bag box 5 through the controller, so that the safety air bag box 5 explodes an air bag to play an air bag buffer role on the elevator car 3;
after the safety airbag box 5 at the bottom end of the elevator car 3 explodes, the elevator car 3 continues to fall, the airbag is in contact with the buffer plate 8, and secondary buffering is achieved through the buffer column 9;
after the elevator car 3 is subjected to secondary buffering, in the process of continuously falling, the elevator car 3 carries the airtight partition plate 7 to continuously press down, the sealing valve 11 is immediately closed, the communicating pipe 13 of the buffering cabin is blocked by matching with the communicating pipe sealing plug 14, so that the elevator car 3 compresses air in the airtight buffering cabin 12 through the airtight partition plate 7, and the elevator car 3 is subjected to tertiary buffering through the air compression effect in the airtight buffering cabin 12; the device enhances the braking force of the device through the braking force of the track brake 4 and the tertiary buffering action of the safety air bag box 5, the buffering column 9 and the airtight buffering cabin 12, and the braking action is relatively moderate;
the communicating pipe sealing plug 14 compresses the sealing plug spring 15 under the action of the sealing plug trigger ejector rod 16 and the track hanger baffle 6, so that the communicating pipe sealing plug 14 is partially pushed out of the buffer bin communicating pipe 13, and the buffer bin communicating pipe 13 is communicated with the airtight buffer bin 12 and air outside the elevator shaft; the influence of water accumulation, moisture and high temperature in the airtight buffer bin 12 on the service life of equipment is avoided;
the edge extension avoids the abnormal air tightness caused by popping the buffer bin communicating pipe 13 when the communicating pipe sealing plug 14 is plugged into the buffer bin communicating pipe 13;
the steel wire rope monitor 20 monitors abrasion or abnormal conditions of the steel wire rope 19 dragged before passing through the steel wire rope monitor 20, and danger caused by breakage of the steel wire rope 19 is avoided;
elevator car is apart from inductor 21 monitoring elevator car 3's displacement, when 3 displacements of elevator car or move the speed unusual, sends emergency braking information to the controller, and track brake 4 carries out emergency braking to elevator car 3, and simultaneously, elevator car 3 sends alarm information and gives remote monitoring server, in time reminds elevator monitoring personnel.
The invention provides an elevator safety braking device which has the characteristics of repeated buffering and stable braking relaxation. The invention has the beneficial effects that: when the elevator car falls or abnormally descends, the rail brake at the bottom side of the elevator car impacts the rail suspension loop baffle plate to break the rail suspension loop baffle plate; a communicating pipe sealing plug at the bottom end of the rail suspension loop baffle is plugged into the buffer bin communicating pipe under the action of the restoring force of the sealing plug spring to block the communication of the buffer bin communicating pipe; when the rail hangers baffle is broken, the buffer control signal is triggered, and the buffer control signal controls the safety air bag box through the controller, so that the safety air bag box explodes the air bag, and the air bag buffer effect is achieved on the elevator car;
when the safety airbag box at the bottom end of the elevator car explodes, the elevator car continuously falls, the airbag is in contact with the buffer plate, and secondary buffering is achieved through the buffer column;
after the elevator car is subjected to secondary buffering, the elevator car is carried with the airtight partition plate to continue to press down in the process of continuing to fall, the sealing valve is immediately closed, the communicating pipe of the buffering bin is blocked by matching with the communicating pipe sealing plug, so that the elevator car compresses air in the airtight buffering bin through the airtight partition plate, and the elevator car is subjected to tertiary buffering through the air compression effect in the airtight buffering bin; the device enhances the braking force of the device through the braking force of the track brake and the three-time buffering action of the safety air bag box, the buffering column and the airtight buffering bin, and the braking action is relatively mild;
the communicating pipe sealing plug compresses a sealing plug spring under the action of a sealing plug triggering ejector rod and a rail suspension loop baffle plate, so that the communicating pipe sealing plug is partially pushed out of the communicating pipe of the buffering bin, and the buffering bin communicating pipe is communicated with the air outside the elevator shaft and the airtight buffering bin; the influence of water accumulation, moisture and high temperature in the airtight buffer bin on the service life of equipment is avoided;
the edge extension avoids the abnormal air tightness caused by popping out the buffer bin communicating pipe when the communicating pipe sealing plug is plugged into the buffer bin communicating pipe;
the steel wire rope monitor monitors the abrasion or abnormal condition of the traction steel wire rope before passing through the steel wire rope monitor, and the danger caused by the breakage of the traction steel wire rope is avoided;
elevator car apart from inductor monitoring elevator car's displacement, when elevator car displacement or move the speed unusual, send emergency braking information to the controller, the track stopper carries out emergency braking to elevator car, and simultaneously, elevator car sends alarm information and gives remote monitoring server, in time reminds elevator monitoring personnel.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (1)
1. An elevator safety braking device comprises an elevator shaft wall body (1), a lifting rail (2), an elevator car (3), a rail brake (4), an airbag box (5), a rail hangers baffle (6), an airtight partition plate (7), a buffer plate (8), a buffer column (9), a communication hole (10), a sealing valve (11), an airtight buffer bin (12), a buffer bin communication pipe (13), a communication pipe sealing plug (14), a sealing plug spring (15), a sealing plug trigger ejector rod (16), a bearing plate (17), an elevator tractor (18), a traction steel wire rope (19), a steel wire rope monitor (20) and an elevator car distance sensor (21), and is characterized in that;
a sealing plug trigger ejector rod (16) is arranged in the lifting track (2) at the bottom end of the elevator shaft wall body (1), the top end of the sealing plug trigger ejector rod (16) props against a track suspension loop baffle (6) arranged in the lifting track (2), and the track suspension loop baffle (6) is located at an early warning height;
an air bag box (5) is arranged at the bottom end of the elevator car (3);
the bottom end of the elevator shaft wall (1) is provided with an airtight partition plate (7), and the airtight partition plate (7) is installed in the lifting track (2) through the edge; a buffer plate (8) is arranged above the airtight partition plate (7) through a buffer column (9);
the upper surface of the airtight partition plate (7) is provided with communicating holes (10), and the communicating holes (10) penetrate through the upper end and the lower end of the airtight partition plate (7); a sealing valve (11) is arranged on the lower surface of the airtight partition plate (7) below the communication hole (10); an airtight buffer bin (12) is arranged in the elevator shaft wall body (1) below the airtight partition plate (7);
the bottom end of the sealing plug trigger ejector rod (16) is connected with the top end of the communicating pipe sealing plug (14); a sealing plug spring (15) is arranged between the bottom end of the communicating pipe sealing plug (14) and the bottom of the elevator shaft;
an extension edge is arranged on the outer side of the bottom end of the communicating pipe sealing plug (14);
a lifting track (2) is arranged on the inner side wall of the elevator shaft wall (1), an elevator car (3) is sleeved on the lifting track (2), and track brakes (4) are arranged in the lifting tracks (2) at the upper end and the lower end of the elevator car (3);
a bearing plate (17) is arranged at the top end of the elevator shaft above the elevator car (3), an elevator traction machine (18) is arranged on the bearing plate (17), and the elevator traction machine (18) is connected with the top end of the elevator car (3) through a traction steel wire rope (19);
a steel wire rope monitor (20) is arranged on the bearing plate (17) on one side of the traction steel wire rope (19), and the steel wire rope monitor (20) is over against the traction steel wire rope (19);
an elevator car distance sensor (21) is arranged below the bearing plate (17), and the elevator car distance sensor (21) is opposite to the top end of the elevator car (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010673519.1A CN112390111B (en) | 2020-07-14 | 2020-07-14 | Elevator safety braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010673519.1A CN112390111B (en) | 2020-07-14 | 2020-07-14 | Elevator safety braking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112390111A CN112390111A (en) | 2021-02-23 |
| CN112390111B true CN112390111B (en) | 2022-04-29 |
Family
ID=74603053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010673519.1A Active CN112390111B (en) | 2020-07-14 | 2020-07-14 | Elevator safety braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112390111B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206417753U (en) * | 2016-12-30 | 2017-08-18 | 林子涵 | It is a kind of to reduce the lift appliance of falling risk |
| CN108892015A (en) * | 2018-09-26 | 2018-11-27 | 安徽继宏环保科技有限公司 | A kind of man lift of high safety performance |
| CN208166282U (en) * | 2018-02-27 | 2018-11-30 | 邹婷婷 | A kind of buffer unit suitable for elevator pit |
| CN210710219U (en) * | 2019-08-15 | 2020-06-09 | 深圳德棱电梯有限公司 | Elevator safety device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI125132B (en) * | 2014-01-21 | 2015-06-15 | Kone Corp | Elevator provided with a safety device arrangement |
-
2020
- 2020-07-14 CN CN202010673519.1A patent/CN112390111B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206417753U (en) * | 2016-12-30 | 2017-08-18 | 林子涵 | It is a kind of to reduce the lift appliance of falling risk |
| CN208166282U (en) * | 2018-02-27 | 2018-11-30 | 邹婷婷 | A kind of buffer unit suitable for elevator pit |
| CN108892015A (en) * | 2018-09-26 | 2018-11-27 | 安徽继宏环保科技有限公司 | A kind of man lift of high safety performance |
| CN210710219U (en) * | 2019-08-15 | 2020-06-09 | 深圳德棱电梯有限公司 | Elevator safety device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112390111A (en) | 2021-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105253734A (en) | Fall-preventing emergency device for elevator | |
| CN205170104U (en) | Retention device that elevator falls | |
| CN107473050A (en) | A kind of control method of Lift car type elevator anti-falling safe system | |
| CN203582214U (en) | Mine hoisting system and steel rope tension monitoring device for same | |
| CN110482094B (en) | Cargo bed with novel anti-falling mechanism and method thereof | |
| CN112390111B (en) | Elevator safety braking device | |
| CN108860205A (en) | A kind of derailing detection method and device used for rail vehicle | |
| CN105480248A (en) | Dual safety protection system capable of preventing overturning for railway engineering vehicle | |
| CN103569918A (en) | Automatic-detection and falling-protection safety device | |
| CN104261227A (en) | Elevator safety protection device | |
| CN107628504A (en) | The disconnected rope fall protection equipment of hoistable platform | |
| CN205419386U (en) | Can prevent unexpected elevator that rises or descend of car | |
| CN205203032U (en) | Railway construction car dual safety protection system that prevents toppling | |
| CN207030660U (en) | Elevator rope break detects protection device | |
| CN111747260A (en) | Elevator safety property alarm system and use method thereof | |
| CN107933602A (en) | Mine car brake device | |
| CN109896390B (en) | Cage protection system of high security | |
| CN205918199U (en) | Safety hook does not break away from device of couple totally when detecting decline of mechanical type parking equipment | |
| CN204079143U (en) | Elevator safety protection device | |
| CN219362900U (en) | Intelligent alarm device for elevator fault | |
| CN203682966U (en) | Endless rope winch off-track detecting device | |
| CN210260889U (en) | Clean crane with intelligent safety detection function | |
| CN220055937U (en) | Anti-falling device of energy-saving elevator | |
| CN117486031A (en) | Detection device for displacement of elevator safety tongs | |
| CN211366642U (en) | Building elevator alarm device |
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 |