CN106744136B - Safety protection device for household elevator - Google Patents
Safety protection device for household elevator Download PDFInfo
- Publication number
- CN106744136B CN106744136B CN201710189107.9A CN201710189107A CN106744136B CN 106744136 B CN106744136 B CN 106744136B CN 201710189107 A CN201710189107 A CN 201710189107A CN 106744136 B CN106744136 B CN 106744136B
- Authority
- CN
- China
- Prior art keywords
- lifting arm
- lifting
- safety
- nut
- steel pipe
- 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
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
Abstract
The invention discloses a household elevator safety protection device, which comprises an elevator car, wherein the elevator car is provided with an upper beam, a lower beam, two straight beams and a safety clamp, and is characterized in that: the lifting mechanism comprises a lifting rod, a steel pipe and a lifting arm, wherein the steel pipe is arranged in parallel to the lower beam, the lifting rod is arranged in parallel to the straight beam, and the middle part of the lifting rod is arranged on the front side wall of the straight beam through an installation plate; the lifting arm comprises a first lifting arm and a second lifting arm, and two ends of the steel pipe are fixedly connected with the outer ends of the first lifting arm and the second lifting arm respectively; one end of the steel pipe is connected with the front end of the first lifting arm, the rear end of the first lifting arm is further provided with a safety gear jacking plate, the bottom of the safety gear jacking plate is rotatably connected with the rear end of the first lifting arm, and the top of the safety gear jacking plate is connected with the safety gear. The invention reduces the space for installing the elevator and improves the applicability of the elevator installation.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a safety protection device for a household elevator.
Background
The lifting mechanism of the elevator mainly has the advantages that when the speed limiter acts, the speed limiter can pull a handle of the lifting mechanism through a steel wire rope, and the lifting mechanism simultaneously transmits the action to the left safety tongs and the right safety tongs on the lower part of the elevator car through a connecting rod structure so as to ensure that the left safety tongs and the right safety tongs can act simultaneously; the conventional home elevators are basically of two types, an upper type, i.e., an upper beam-mounted type, and a lower type, i.e., a lower beam-mounted type.
Because the service environment of the household elevator is complex, the household elevator can meet the situation that the top layer and the pit of the elevator are small at the same time, and the traditional upper and lower lifting mechanisms cannot meet the requirements in consideration of installation space and safety space.
Disclosure of Invention
The invention aims to provide a safety protection device for a household elevator, which reduces the installation space of a lifting mechanism, improves the applicability of different elevators, and simultaneously ensures the safety and stability of the lifting mechanism during use.
In order to achieve the purpose, the invention adopts the technical scheme that: a household elevator safety protection device comprises an elevator car, wherein an upper beam, a lower beam and two straight beams are arranged on the elevator car, two ends of the upper beam and the lower beam are respectively connected through the two straight beams, a safety clamp is arranged on the outer side wall of one straight beam, the safety clamp is arranged on the outer side wall of the straight beam above the lower beam, the household elevator safety protection device also comprises a lifting mechanism, the lifting mechanism is arranged on the front side of the lower beam, the lifting mechanism is arranged on the front side of the straight beam,
the lifting mechanism comprises a lifting rod, a steel pipe and a lifting arm, the steel pipe is arranged in parallel with the lower beam, the lifting rod is arranged in parallel with the straight beam, and the middle part of the lifting rod is arranged on the front side wall of the straight beam through an installation plate;
the lifting arm comprises a first lifting arm and a second lifting arm, and two ends of the steel pipe are fixedly connected with the outer ends of the first lifting arm and the second lifting arm respectively; the lifting rod is perpendicular to the steel pipe and the lifting arm, a pin shaft is arranged in the middle of the outer side of the first lifting arm, and the bottom of the lifting rod is rotationally connected with the pin shaft through a connecting plate; the top of the lifting rod is provided with a steel wire rope connecting piece, the steel wire rope connecting piece is arranged on the front side of the lifting rod, and the steel wire rope connecting piece is arranged above the steel pipe; one end of the steel pipe is connected with the front end of the first lifting arm, the rear end of the first lifting arm is further provided with a safety gear jacking plate, the bottom of the safety gear jacking plate is rotatably connected with the rear end of the first lifting arm, and the top of the safety gear jacking plate is connected with the safety gear.
In the technical scheme, a connecting shaft is arranged between the lower beam and the steel pipe, and the middle parts of the inner sides of the first lifting arm and the second lifting arm are respectively connected with the two ends of the connecting shaft in a rotating manner.
In the above technical scheme, the side portion of the mounting plate is fixedly mounted on the front side wall of the straight beam.
In the above technical scheme, the middle part and the bottom part of the lifting rod are respectively provided with a plurality of nuts in a threaded connection manner, the nuts include a first nut, a second nut and a third nut, the second nut and the third nut are respectively arranged above and below the connecting plate, the bottom surface of the second nut abuts against the top surface of the connecting plate, and the top surface of the third nut abuts against the bottom surface of the connecting plate; the first nut is arranged above the mounting plate, and the bottom surface of the first nut abuts against the top surface of the mounting plate.
In the above technical scheme, a spring is further sleeved on the lifting rod, the top of the spring abuts against the bottom surface of the mounting plate, and the bottom of the spring abuts against the top surface of the second nut.
In the technical scheme, the steel pipe is further provided with a switch shaft sleeve, and a notch is formed in the outer circular surface of the bottom of the switch shaft sleeve.
In the technical scheme, a safety switch is arranged below the switch shaft sleeve, and a contact pin at the top of the safety switch is abutted to a notch of the switch shaft sleeve.
In the technical scheme, the steel wire rope connecting piece is internally provided with the upper rope wheel and the lower rope wheel, and the upper rope wheel is arranged right above the lower rope wheel.
In the technical scheme, the upper rope wheel is connected with the upper end of the speed limiter steel wire rope, the lower rope wheel is connected with the lower end of the speed limiter steel wire rope, the upper end of the speed limiter steel wire rope is arranged above the upper rope wheel, and the lower end of the speed limiter steel wire rope is arranged below the lower rope wheel.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. when the space of the top layer and the pit of the elevator shaft is insufficient, the lifting mechanism can be arranged on the straight beam beside the lower beam, compared with the prior structure, the lifting mechanism can be arranged on the straight beam of the elevator car in a hidden mode, the use of the space of the top layer and the pit of the elevator shaft can be reduced, the lifting mechanism is suitable for the installation of different elevators, and the safety and the stability of the lifting mechanism in use can be ensured;
2. according to the elevator safety tongs, the spring is arranged on the lifting rod, so that the lifting rod and the safety tongs jacking plate can be driven to reset when the elevator recovers to run, convenience and rapidness are realized, and manual assistance for recovery is not needed;
3. according to the elevator safety switch, the notch is formed in the outer circular surface of the bottom of the switch shaft sleeve, the safety switch is arranged below the notch, and after the lifting rod is lifted, the switch shaft sleeve is driven to rotate, so that the outer circular surface of the switch shaft sleeve presses the safety switch, and the safety switch is convenient to control the elevator to stop running.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural diagram of a lifting mechanism according to one embodiment of the present invention;
fig. 4 is a schematic perspective view of fig. 3.
Wherein: 1. an upper beam; 2. a lower beam; 3. a straight beam; 4. safety tongs; 5. a lifting mechanism; 6. lifting a pull rod; 7. a steel pipe; 8. mounting a plate; 9. a first lifting arm; 10. a second lifting arm; 11. a pin shaft; 12. a connecting plate; 13. a wire rope connector; 14. the safety tongs jack-up plate; 15. a connecting shaft; 16. a rope sheave is arranged; 17. a rope sheave is arranged; 18. a first nut; 19. a second nut; 20. a third nut; 21. a spring; 23. a switch shaft sleeve; 24. a notch; 25. a safety switch.
Detailed Description
The invention is further described with reference to the following figures and examples:
the first embodiment is as follows: referring to fig. 1 to 4, a home elevator safety protection device comprises an elevator car, wherein an upper beam 1, a lower beam 2 and two straight beams 3 are arranged on the elevator car, two ends of the upper beam 1 and the lower beam 2 are respectively connected through the two straight beams 3, a safety gear 4 is arranged on the outer side wall of one straight beam 3, the safety gear 4 is arranged on the outer side wall of the straight beam above the lower beam 2, the home elevator safety protection device further comprises a lifting mechanism 5, the lifting mechanism 5 is arranged on the front side of the lower beam 2, and the lifting mechanism is arranged on the front side of the straight beam 3,
the lifting mechanism comprises a lifting rod 6, a steel pipe 7 and a lifting arm, the steel pipe 7 is arranged in parallel with the lower beam 2, the lifting rod 6 is arranged in parallel with the straight beam 3, and the middle part of the lifting rod 6 is arranged on the front side wall of the straight beam 3 through an installation plate 8;
the lifting arm comprises a first lifting arm 9 and a second lifting arm 10, and two ends of the steel pipe 7 are fixedly connected with the outer ends of the first lifting arm and the second lifting arm respectively; the lifting rod 6 is perpendicular to the steel pipe 7 and the lifting arm, a pin shaft 11 is arranged in the middle of the outer side of the first lifting arm 9, and the bottom of the lifting rod 6 is rotatably connected with the pin shaft 11 through a connecting plate 12; a steel wire rope connecting piece 13 is arranged at the top of the lifting rod 6, the steel wire rope connecting piece 13 is arranged on the front side of the lifting rod 6, and the steel wire rope connecting piece 13 is arranged above the steel pipe 7; one end of the steel pipe 7 is connected with the front end of the first lifting arm 9, the rear end of the first lifting arm 9 is further provided with a safety gear lifting plate 14, the bottom of the safety gear lifting plate 14 is rotatably connected with the rear end of the first lifting arm 9, and the top of the safety gear lifting plate 14 is connected with the safety gear 4.
Referring to fig. 1 to 4, a connecting shaft 15 is arranged between the lower beam 2 and the steel pipe 7, and the middle parts of the inner sides of the first and second lifting arms are rotatably connected with two ends of the connecting shaft 15 respectively. An upper rope wheel 16 and a lower rope wheel 17 are arranged in the steel wire rope connecting piece 13, and the upper rope wheel 16 is arranged right above the lower rope wheel 17. Go up rope sheave 16 and overspeed governor wire rope upper end and link to each other, lower rope sheave 17 links to each other with overspeed governor wire rope lower end, just overspeed governor wire rope upper end set up in the top of going up rope sheave 16, overspeed governor wire rope lower end set up in the below of rope sheave 17 down.
In this embodiment, when the speed of the elevator car exceeds a limited speed, the speed limiter acts, the speed limiter steel wire rope generates relative speed reduction with the elevator car, so that the upper end of the speed limiter steel wire rope can drive the lifting rod to move upwards through the upper rope pulley, when the lifting rod moves upwards, because the connecting plate below the lifting rod is connected with the first lifting arm in a rotating manner, and the first lifting arm and the second lifting arm can rotate on the connecting shaft, in the process of lifting the lifting rod, the first lifting arm and the second lifting arm can be driven to rotate clockwise around the connecting shaft, namely, the rear end of the first lifting arm can be lifted, namely, the safety tong lifting plate is driven to lift, the safety tong lifting plate pushes against a mechanism in the safety tong, so that the safety tong clamps the guide rail of the elevator, thereby limiting the movement of the elevator car, and completing the limitation of the elevator.
Referring to fig. 1 and 2, the side portion of the mounting plate 8 is fixedly mounted on the front side wall of the straight beam 3.
The middle part and the bottom part of the lifting rod 6 are respectively provided with a plurality of nuts in a threaded connection mode, and the nuts comprise a first nut 18, a second nut 19 and a third nut 20, the second nut 19 and the third nut 20 are respectively arranged above and below the connecting plate 12, the bottom surface of the second nut 19 abuts against the top surface of the connecting plate 12, and the top surface of the third nut 20 abuts against the bottom surface of the connecting plate 12; the first nut 18 is disposed above the mounting plate 8, and a bottom surface of the first nut 18 abuts against a top surface of the mounting plate 8. The lifting rod 6 is further sleeved with a spring 21, the top of the spring 21 abuts against the bottom surface of the mounting plate 8, and the bottom of the spring 21 abuts against the top surface of the second nut 19.
In this embodiment, after the elevator car stops, when needing to reset again, need loosen overspeed governor wire rope, then a distance is hoisted elevator car through the hauler to rethread, unclamp the safety gear, make the elevator normally operate. Wherein, at the in-process that elevator car rises, because overspeed governor wire rope top end loosens from last rope sheave, is equipped with the spring on the lifting rod moreover, through the restoring force of spring, will lift the lifting rod and upwards jack up, make first, second lift arm reconversion, promptly drive safety tongs jacking board and resume, make safety tongs reconversion.
In this embodiment, a pin hole (not shown) is formed in an end portion of the pin shaft 11, the pin hole is perpendicular to an axis line of the pin shaft 11, a through hole is formed in the bottom of the connecting plate 12, the through hole is sleeved on the pin shaft, when the connecting plate is installed on the pin shaft, the pin shaft is only required to be inserted into the through hole, and then a locking pin (not shown) is inserted into the pin hole, so that the connecting plate and the first lifting arm can be installed.
Referring to fig. 1 to 4, the steel pipe 7 is further provided with a switch shaft sleeve 23, and a notch 24 is formed in the outer circular surface of the bottom of the switch shaft sleeve 23. A safety switch 25 is arranged below the switch shaft sleeve 23, and a contact pin at the top of the safety switch 25 is abutted against the notch 24 of the switch shaft sleeve 23.
In the normal operation process of the elevator car, a contact pin of the safety switch extends out, and the contact pin just abuts against the bottom surface of the notch in the extending state, so that the safety switch is not triggered. After the lifting rod is lifted, the steel pipe is driven to rotate, the steel pipe also drives the switch shaft sleeve to rotate during rotation, the switch shaft sleeve drives the notch to be far away from the contact pin of the safety switch during rotation, the outer circular surface of the switch shaft sleeve can press down the contact pin of the safety switch, and after the contact pin of the safety switch is pressed down, the safety switch is activated to control the elevator car to stop running, so that the safety during the use of the elevator is ensured.
In this embodiment, install between the mechanism of pulling and carrying on the straight beam of underbeam side, can effectively reduce the occupation in space, can directly hide in elevator car, even the top of elevator well and bottom space are not enough, can not influence the installation of pulling and carrying the mechanism yet. Meanwhile, the lifting mechanism is arranged on the straight beam, and when the lifting mechanism acts, the safety gear hidden in the straight beam can be directly jacked up, so that the elevator car is stopped. In this embodiment, the distance between the lifting mechanism and the safety gear is shorter, and the safety of the safety gear in use, that is, the safety of the elevator in use can be improved.
Simultaneously, in this embodiment, carry and draw mechanism direct mount on the straight beam, carry the pull rod length among the pull mechanism and also than in the structure in the past the length of pull rod shorter, like this the pull rod after being pulled, can be the fastest with its reaction to carry the pull arm on, drive safety tongs jacking board work, because the length of pull rod is shorter, can make the reaction of carrying the pull arm more sensitive, can further guarantee the security and the stability of elevator operation.
Claims (5)
1. The utility model provides a home use elevator safety arrangement, includes elevator car, be equipped with upper beam, underbeam and two straight beams on the elevator car, the both ends of upper beam and underbeam are respectively through two the straight beam links to each other, one be equipped with a safety tongs on the lateral wall of straight beam, safety tongs set up in on the straight beam lateral wall of underbeam top, its characterized in that: also comprises a lifting mechanism which is arranged at the front side of the lower beam and is arranged at the front side of the straight beam,
the lifting mechanism comprises a lifting rod, a steel pipe and a lifting arm, the steel pipe is arranged in parallel with the lower beam, the lifting rod is arranged in parallel with the straight beam, and the middle part of the lifting rod is arranged on the front side wall of the straight beam through an installation plate;
the lifting arm comprises a first lifting arm and a second lifting arm, and two ends of the steel pipe are fixedly connected with the outer ends of the first lifting arm and the second lifting arm respectively; the lifting rod is perpendicular to the steel pipe and the lifting arm, a pin shaft is arranged in the middle of the outer side of the first lifting arm, and the bottom of the lifting rod is rotationally connected with the pin shaft through a connecting plate; the top of the lifting rod is provided with a steel wire rope connecting piece, the steel wire rope connecting piece is arranged on the front side of the lifting rod, and the steel wire rope connecting piece is arranged above the steel pipe; one end of the steel pipe is connected with the front end of the first lifting arm, the rear end of the first lifting arm is also provided with a safety gear jacking plate, the bottom of the safety gear jacking plate is rotatably connected with the rear end of the first lifting arm, and the top of the safety gear jacking plate is connected with the safety gear;
a connecting shaft is arranged between the lower beam and the steel pipe, and the middle parts of the inner sides of the first lifting arm and the second lifting arm are respectively and rotatably connected with two ends of the connecting shaft;
the side part of the mounting plate is fixedly mounted on the front side wall of the straight beam;
the middle part and the bottom part of the lifting rod are respectively provided with a plurality of nuts in a threaded connection mode, the nuts comprise a first nut, a second nut and a third nut, the second nut and the third nut are respectively arranged above and below the connecting plate, the bottom surface of the second nut abuts against the top surface of the connecting plate, and the top surface of the third nut abuts against the bottom surface of the connecting plate; the first nut is arranged above the mounting plate, and the bottom surface of the first nut is abutted against the top surface of the mounting plate;
the lifting rod is further sleeved with a spring, the top of the spring abuts against the bottom surface of the mounting plate, and the bottom of the spring abuts against the top surface of the second nut.
2. The home elevator safety protecting apparatus according to claim 1, wherein: the steel pipe is also provided with a switch shaft sleeve, and the outer circular surface of the bottom of the switch shaft sleeve is provided with a notch.
3. The home elevator safety protecting apparatus according to claim 2, wherein: a safety switch is arranged below the switch shaft sleeve, and a contact pin at the top of the safety switch is abutted to the notch of the switch shaft sleeve.
4. The home elevator safety protecting apparatus according to claim 1, wherein: an upper rope wheel and a lower rope wheel are arranged in the steel wire rope connecting piece, and the upper rope wheel is arranged right above the lower rope wheel.
5. The home elevator safety protecting apparatus according to claim 4, wherein: go up the rope sheave and link to each other with overspeed governor wire rope upper end, lower rope sheave links to each other with overspeed governor wire rope lower end, just overspeed governor wire rope upper end set up in the top of going up the rope sheave, overspeed governor wire rope lower end set up in the below of rope sheave down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189107.9A CN106744136B (en) | 2017-03-27 | 2017-03-27 | Safety protection device for household elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710189107.9A CN106744136B (en) | 2017-03-27 | 2017-03-27 | Safety protection device for household elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106744136A CN106744136A (en) | 2017-05-31 |
| CN106744136B true CN106744136B (en) | 2022-05-10 |
Family
ID=58966761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710189107.9A Active CN106744136B (en) | 2017-03-27 | 2017-03-27 | Safety protection device for household elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106744136B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012024925A1 (en) * | 2010-08-27 | 2012-03-01 | 康力电梯股份有限公司 | Speed-limiting control device for home lift |
| CN202245598U (en) * | 2011-07-14 | 2012-05-30 | 广东联合通用电梯有限公司 | Two-way lifting device for elevator safety tongs |
| CN203865760U (en) * | 2014-03-21 | 2014-10-08 | 苏州歌拉瑞电梯有限公司 | Safety gear lifting mechanism |
| CN204038806U (en) * | 2013-11-20 | 2014-12-24 | 重庆迈高电梯有限公司 | Inhead type safety tongs device |
| CN104229587A (en) * | 2014-09-12 | 2014-12-24 | 江苏创力电梯部件有限公司 | Safety gear with easy control of synchronism |
| CN205294539U (en) * | 2015-12-22 | 2016-06-08 | 江苏菱智电梯制造有限公司 | Pulling mechanism |
| CN205472141U (en) * | 2016-01-11 | 2016-08-17 | 上海威茨堡电梯有限公司 | Integrated device at bottom of sedan -chair |
| CN206590709U (en) * | 2017-03-27 | 2017-10-27 | 通用电梯股份有限公司 | A kind of home lift safety guard |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3532349B2 (en) * | 1996-06-11 | 2004-05-31 | 三菱電機株式会社 | Elevator safety equipment |
| JP5973316B2 (en) * | 2012-10-23 | 2016-08-23 | 株式会社日立製作所 | Elevator emergency stop device |
-
2017
- 2017-03-27 CN CN201710189107.9A patent/CN106744136B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012024925A1 (en) * | 2010-08-27 | 2012-03-01 | 康力电梯股份有限公司 | Speed-limiting control device for home lift |
| CN202245598U (en) * | 2011-07-14 | 2012-05-30 | 广东联合通用电梯有限公司 | Two-way lifting device for elevator safety tongs |
| CN204038806U (en) * | 2013-11-20 | 2014-12-24 | 重庆迈高电梯有限公司 | Inhead type safety tongs device |
| CN203865760U (en) * | 2014-03-21 | 2014-10-08 | 苏州歌拉瑞电梯有限公司 | Safety gear lifting mechanism |
| CN104229587A (en) * | 2014-09-12 | 2014-12-24 | 江苏创力电梯部件有限公司 | Safety gear with easy control of synchronism |
| CN205294539U (en) * | 2015-12-22 | 2016-06-08 | 江苏菱智电梯制造有限公司 | Pulling mechanism |
| CN205472141U (en) * | 2016-01-11 | 2016-08-17 | 上海威茨堡电梯有限公司 | Integrated device at bottom of sedan -chair |
| CN206590709U (en) * | 2017-03-27 | 2017-10-27 | 通用电梯股份有限公司 | A kind of home lift safety guard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106744136A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111942989B (en) | Construction elevator security protection device for construction | |
| CN106744136B (en) | Safety protection device for household elevator | |
| CN203428672U (en) | Electric lifting cage with safety device | |
| CN201367726Y (en) | Lifter for high operation hanging basket | |
| CN206590709U (en) | A kind of home lift safety guard | |
| CN108316657B (en) | Self-lifting type high-rise building construction device and lifting method thereof | |
| CN203439936U (en) | Manual rail clamping device provided with limit switch | |
| LU503481B1 (en) | Safety protection device for home elevator | |
| CN112027853B (en) | Elevator fault information transmission device in wisdom community | |
| CN201485153U (en) | Hand-movement rescue device of electrical elevator | |
| CN204022177U (en) | A kind of anti-slip dynamic device of flat bed of cabin elevator | |
| CN213297867U (en) | Upper and lower limiting anti-collision device of pneumatic casing centralizer | |
| CN208378282U (en) | A kind of winding steel wire rope tensioning locking device | |
| CN108382943A (en) | A kind of elevator pit being equipped with maintenance protective device | |
| CN216190171U (en) | Safety tongs lifting mechanism in low top layer space | |
| CN208327002U (en) | A kind of elevator pit equipped with maintenance protective device | |
| CN203008348U (en) | Lifting and falling prevention device of working condition self-adaption type scaffold | |
| CN2773029Y (en) | Bi-directional overspeed protector of elevator | |
| CN218024822U (en) | Elevator steel wire rope loosening prevention protection device | |
| CN215756107U (en) | Top drive double-control down-smashing prevention device | |
| CN220844993U (en) | Braking safety tongs of home elevator | |
| CN219636758U (en) | Limiting device for traveling crane pulley | |
| CN208906981U (en) | A kind of Weight type elevator over-speed governor tensioning apparatus | |
| CN217440650U (en) | Elevator type manual releasing device for large-specification industrial brake | |
| CN201660404U (en) | Pedal type lifting hanging basket hoister |
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 |