CN111547597A - Elevator buffering protection device that falls - Google Patents
Elevator buffering protection device that falls Download PDFInfo
- Publication number
- CN111547597A CN111547597A CN202010492805.8A CN202010492805A CN111547597A CN 111547597 A CN111547597 A CN 111547597A CN 202010492805 A CN202010492805 A CN 202010492805A CN 111547597 A CN111547597 A CN 111547597A
- Authority
- CN
- China
- Prior art keywords
- elevator
- bearing plate
- elevator shaft
- transverse sliding
- plate
- 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.)
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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
- B66B5/28—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
- B66B5/02—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
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
-
- 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
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
Abstract
The invention discloses an elevator falling buffer protection device, which comprises an elevator shaft and an elevator car; a first bearing plate is arranged in the elevator shaft, a first buffer spring connected with the first bearing plate is arranged on the bottom wall of the elevator shaft, and the top of the first bearing plate is connected with a second bearing plate through a second buffer spring; vertical sliding grooves are formed in two opposite side walls of the elevator shaft, two ends of the first bearing plate extend into the vertical sliding grooves respectively and are provided with stop rods, a transverse sliding groove is further formed in the side wall of the elevator shaft and is connected with a transverse sliding block, a compression spring is connected to the inner side of the transverse sliding block, a first friction plate is connected to the outer side of the transverse sliding block, a positioning hole is formed in the bottom of the transverse sliding block, and the upper end of each stop rod is inserted into the positioning hole; the bottom of the elevator car is provided with a supporting plate, and two sides of the supporting plate are respectively connected with a second friction plate. The elevator falling buffer protection device can effectively buffer and protect an elevator car, so that the safety of personnel in the elevator car is improved.
Description
Technical Field
The invention relates to an elevator falling buffer protection device.
Background
In recent years, along with the continuous occurrence of elevator accidents, people pay more attention to safety protection devices of elevators. Especially high-rise elevator, when the car moves to higher floor, if the steel cable that pulls the car breaks, the protector that the car falls in-process generally is safety tongs, but the condition that has car guide rail fracture or safety tongs malfunctioning takes place, then the car will fall to elevator well pit with higher speed always, will lead to falling the ladder and cause serious accident. The existing elevator safety protection means are not many, so an elevator falling buffer protection device needs to be designed.
Disclosure of Invention
The invention aims to provide an elevator falling buffer protection device which is reasonable in structure and can effectively buffer and protect an elevator car, so that the safety of personnel in the elevator car is improved.
In order to achieve the aim, the technical scheme of the invention is to design an elevator falling buffer protection device, which comprises an elevator shaft and an elevator car arranged in the elevator shaft;
a first bearing plate is arranged above the bottom wall of the elevator shaft, four spring mounting holes which are arranged in a rectangular shape are formed in the bottom wall of the elevator shaft, a first buffer spring is fixed in each spring mounting hole, the upper end of each first buffer spring extends to the position above the corresponding spring mounting hole and is fixedly connected with the corresponding first bearing plate, a second bearing plate is arranged above the corresponding first bearing plate, and four second buffer springs which are arranged in a rectangular shape are connected between the corresponding second bearing plate and the corresponding first bearing plate; the elevator shaft is characterized in that vertical sliding grooves are formed in two opposite side walls of the elevator shaft, the lower ends of the vertical sliding grooves extend to the bottom wall of the elevator shaft, openings communicated with the lower ends of the vertical sliding grooves are formed in the bottom of the side wall of the elevator shaft, two ends of a first bearing plate respectively penetrate through the openings and extend into the vertical sliding grooves, vertical sliding blocks are connected in the vertical sliding grooves in a sliding mode, stop rods are fixedly arranged in the vertical sliding blocks in a penetrating mode and are vertically arranged, the lower ends of the stop rods are fixedly connected with the first bearing plate, transverse sliding grooves communicated with the upper ends of the vertical sliding grooves are further formed in the side wall of the elevator shaft, outer ends of the transverse sliding grooves penetrate through the side wall of the elevator shaft, transverse sliding blocks are connected in the transverse sliding grooves in a sliding mode, compression springs are connected between the transverse sliding blocks and the inner ends of the transverse sliding, the bottom of the transverse sliding block is provided with a positioning hole, and the upper end of the stop lever is inserted into the positioning hole;
the bottom of the elevator car is provided with a supporting plate, and two sides of the supporting plate are respectively connected with second friction plates corresponding to the first friction plates.
Preferably, a heat insulation block is arranged between the second friction plate and the supporting plate.
Preferably, the bottom of the first friction plate is provided with a first guide inclined plane, and the top of the second friction plate is provided with a second guide inclined plane corresponding to the first guide inclined plane.
Preferably, the first friction plate abuts against a side wall of the elevator hoistway.
The invention has the advantages and beneficial effects that: the utility model provides an elevator buffering protection device that falls, its is rational in infrastructure, can effectually cushion the protection to elevator car to improve the interior personnel's of elevator car security.
When elevator car takes place to fall, by setting up the layer board contact second bearing plate in elevator car bottom, later drive second bearing plate and first bearing plate down to compress second buffer spring and first buffer spring, absorb the impact force that personnel received in the elevator car jointly by first buffer spring and second buffer spring, with the security that improves personnel in the elevator car. In addition, in the descending process of the first bearing plate, the stop rod is driven to descend along the vertical sliding groove until the first bearing plate is contacted with the bottom wall of the elevator shaft, the upper end of the stop rod is pulled out of the positioning hole of the transverse sliding block, and the transverse sliding block slides outwards for a certain distance along the transverse sliding groove under the action of the elastic restoring force of the compression spring, so that the transverse sliding block drives the first friction plate to move to the working position; because the elevator car rebounds at a high speed after falling under the action of the elastic restoring force of the first buffer spring and the second buffer spring, secondary injury is easily caused to people in the elevator car, and the rebounding of the elevator car needs to be decelerated; specifically, in the upward rebounding process of the elevator car, the supporting plate is separated from the second bearing plate, the first bearing plate drives the stop lever to move upwards under the action of elastic restoring force of the first buffer spring, so that the upper end of the stop lever is inserted into the transverse sliding groove and blocked on the inner side of the transverse sliding block, the transverse sliding block and the first friction plate in the working position are prevented from retreating, the supporting plate drives the second friction plate to move upwards after being separated from the second bearing plate, the first friction plate and the second friction plate are in contact fit under the guide of the first guide inclined plane and the second guide inclined plane and generate friction resistance in the process, the rebounding speed of the elevator car is reduced, and secondary injury to personnel inside the elevator car due to high-speed rebounding is avoided.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The technical scheme of the specific implementation of the invention is as follows:
as shown in fig. 1 and 2, an elevator fall buffering protection device comprises an elevator shaft 1, and an elevator car 2 arranged in the elevator shaft 1;
a first bearing plate 3 is arranged above the bottom wall of the elevator shaft 1, four spring mounting holes 4 which are arranged in a rectangular shape are formed in the bottom wall of the elevator shaft 1, a first buffer spring 5 is fixed in each spring mounting hole 4, the upper end of each first buffer spring 5 extends to the position above the corresponding spring mounting hole 4 and is fixedly connected with the corresponding first bearing plate 3, a second bearing plate 6 is arranged above the corresponding first bearing plate 3, and four second buffer springs 7 which are arranged in a rectangular shape are connected between the corresponding second bearing plate 6 and the corresponding first bearing plate 3; the elevator hoistway structure comprises an elevator hoistway 1, two opposite side walls of the elevator hoistway 1 are respectively provided with a vertical sliding chute 8, the lower end of the vertical sliding chute 8 extends to the bottom wall of the elevator hoistway 1, the bottom of the side wall of the elevator hoistway 1 is provided with an opening 9 communicated with the lower end of the vertical sliding chute 8, two ends of a first bearing plate 3 respectively penetrate through the openings 9 and extend into the vertical sliding chute 8, a vertical sliding block 10 is connected in the vertical sliding chute 8 in a sliding manner, a stop rod 11 is fixedly penetrated in the vertical sliding block 10, the stop rod 11 is vertically arranged, the lower end of the stop rod 11 is fixedly connected with the first bearing plate 3, a transverse sliding chute 12 communicated with the upper end of the vertical sliding chute 8 is further arranged in the side wall of the elevator hoistway 1, the outer end of the transverse sliding chute 12 penetrates through the side wall of the elevator hoistway 1, a transverse sliding block 13 is connected in the transverse sliding chute 12 in, the transverse sliding block 13 is connected with a first friction plate 15 positioned outside the transverse sliding groove 12, a positioning hole is formed in the bottom of the transverse sliding block 13, and the upper end of the stop lever 11 is inserted into the positioning hole;
the bottom of the elevator cage 2 is provided with a supporting plate 16, and two sides of the supporting plate 16 are respectively connected with a second friction plate 17 corresponding to the first friction plate 15.
And a heat insulation block 18 is arranged between the second friction plate 17 and the supporting plate 16.
The first friction plate 15 has a first guide slope 151 at a bottom thereof, and the second friction plate 17 has a second guide slope 171 at a top thereof corresponding to the first guide slope 151.
The first friction plate 15 is attached to the side wall of the elevator shaft 1.
The invention has the advantages and beneficial effects that: the utility model provides an elevator buffering protection device that falls, its is rational in infrastructure, can effectually cushion protection to elevator car 2 to improve elevator car 2 interior personnel's security.
When the elevator car 2 falls, the supporting plate 16 arranged at the bottom of the elevator car 2 contacts the second bearing plate 6, then the second bearing plate 6 and the first bearing plate 3 are driven to move downwards, so that the second buffer spring 7 and the first buffer spring 5 are compressed, and the impact force applied to a person in the elevator car 2 is absorbed by the first buffer spring 5 and the second buffer spring 7 together, so that the safety of the person in the elevator car 2 is improved. In addition, in the descending process of the first bearing plate 3, the stop rod 11 is driven to descend along the vertical sliding groove 8 until the first bearing plate 3 is contacted with the bottom wall of the elevator shaft, the upper end of the stop rod 11 is pulled out of the positioning hole of the transverse sliding block 13, at the moment, the transverse sliding block 13 slides outwards for a certain distance along the transverse sliding groove 12 under the action of the elastic restoring force of the compression spring 14, and therefore the transverse sliding block 13 drives the first friction plate 15 to move to the working position; after the elevator car 2 falls down, the elevator car will bounce at a high speed under the action of the elastic restoring forces of the first buffer spring 5 and the second buffer spring 7, so that secondary injury is easily caused to people in the elevator car 2, and therefore the bouncing of the elevator car 2 needs to be decelerated; specifically, in the upward rebounding process of the elevator car 2, the supporting plate 16 is separated from the second bearing plate 6, and the first bearing plate 3 drives the stop rod 11 to move upwards under the action of the elastic restoring force of the first buffer spring 5, so that the upper end of the stop rod 11 is inserted into the transverse sliding groove 12 and blocks the inner side of the transverse sliding block 13, thereby preventing the transverse sliding block 13 and the first friction plate 15 in the working position from moving backwards, and the supporting plate 16 is separated from the second bearing plate 6 to drive the second friction plate 17 to move upwards, and in the process, the first friction plate 15 and the second friction plate 17 are in contact fit under the guide of the first guide inclined plane 151 and the second guide inclined plane 171 and generate friction resistance, so that the rebounding speed of the elevator car 2 is reduced, and secondary injury to people inside the elevator car 2 due to high-speed rebounding is avoided.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The elevator falling buffer protection device is characterized by comprising an elevator shaft and an elevator car arranged in the elevator shaft;
a first bearing plate is arranged above the bottom wall of the elevator shaft, four spring mounting holes which are arranged in a rectangular shape are formed in the bottom wall of the elevator shaft, a first buffer spring is fixed in each spring mounting hole, the upper end of each first buffer spring extends to the position above the corresponding spring mounting hole and is fixedly connected with the corresponding first bearing plate, a second bearing plate is arranged above the corresponding first bearing plate, and four second buffer springs which are arranged in a rectangular shape are connected between the corresponding second bearing plate and the corresponding first bearing plate; the elevator shaft is characterized in that vertical sliding grooves are formed in two opposite side walls of the elevator shaft, the lower ends of the vertical sliding grooves extend to the bottom wall of the elevator shaft, openings communicated with the lower ends of the vertical sliding grooves are formed in the bottom of the side wall of the elevator shaft, two ends of a first bearing plate respectively penetrate through the openings and extend into the vertical sliding grooves, vertical sliding blocks are connected in the vertical sliding grooves in a sliding mode, stop rods are fixedly arranged in the vertical sliding blocks in a penetrating mode and are vertically arranged, the lower ends of the stop rods are fixedly connected with the first bearing plate, transverse sliding grooves communicated with the upper ends of the vertical sliding grooves are further formed in the side wall of the elevator shaft, outer ends of the transverse sliding grooves penetrate through the side wall of the elevator shaft, transverse sliding blocks are connected in the transverse sliding grooves in a sliding mode, compression springs are connected between the transverse sliding blocks and the inner ends of the transverse sliding, the bottom of the transverse sliding block is provided with a positioning hole, and the upper end of the stop lever is inserted into the positioning hole;
the bottom of the elevator car is provided with a supporting plate, and two sides of the supporting plate are respectively connected with second friction plates corresponding to the first friction plates.
2. The elevator fall buffer protection device of claim 1, wherein a thermal insulation block is disposed between the second friction plate and the support plate.
3. The elevator fall buffer protection device according to claim 2, wherein the first friction plate is provided with a first guide slope at the bottom and the second friction plate is provided with a second guide slope at the top corresponding to the first guide slope.
4. The elevator fall buffer protection device according to claim 3, wherein the first friction plate abuts against a sidewall of an elevator hoistway.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010492805.8A CN111547597A (en) | 2020-06-03 | 2020-06-03 | Elevator buffering protection device that falls |
| PCT/CN2021/090635 WO2021244195A1 (en) | 2020-06-03 | 2021-04-28 | Falling buffering and protection device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010492805.8A CN111547597A (en) | 2020-06-03 | 2020-06-03 | Elevator buffering protection device that falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111547597A true CN111547597A (en) | 2020-08-18 |
Family
ID=71999072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010492805.8A Pending CN111547597A (en) | 2020-06-03 | 2020-06-03 | Elevator buffering protection device that falls |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111547597A (en) |
| WO (1) | WO2021244195A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003351A (en) * | 2021-03-22 | 2021-06-22 | 德森克电梯（中国）有限公司 | Traction type safety goods elevator |
| CN113026079A (en) * | 2021-03-20 | 2021-06-25 | 上海太同电镀有限公司 | Electroplating structure for automobile belt pulley |
| CN113148805A (en) * | 2021-05-06 | 2021-07-23 | 苏州固源电梯部件有限公司 | Elevator shaft arrangement structure |
| CN113307128A (en) * | 2021-05-28 | 2021-08-27 | 富鑫特种设备有限公司 | Elevator falling protection device and protection method |
| WO2021244195A1 (en) * | 2020-06-03 | 2021-12-09 | 德森克电梯（中国）有限公司 | Falling buffering and protection device for elevator |
| CN115321303A (en) * | 2022-08-11 | 2022-11-11 | 广东长城电梯有限公司 | Elevator car safety arrangement |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114455424A (en) * | 2021-12-27 | 2022-05-10 | 住友富士电梯有限公司 | Passenger elevator with buffer structure |
| CN114988248A (en) * | 2022-04-26 | 2022-09-02 | 苏迅电梯有限公司 | Sightseeing elevator for passenger liner |
| CN115180487B (en) * | 2022-08-05 | 2023-10-24 | 钰鼎康电梯(山东)集团有限公司 | Anti-pinch elevator door |
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| CN210480517U (en) * | 2019-09-02 | 2020-05-08 | 深圳市深安企业有限公司 | High-rise elevator shaft protective structure |
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| KR100904530B1 (en) * | 2008-12-30 | 2009-06-25 | 태성이엔씨(주) | An impact absoption apparatus applying multi reduction oil cylinder form and elevator having this |
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| CN107640678B (en) * | 2017-10-12 | 2019-02-22 | 沈小凤 | A kind of fall arrest and highly-safe elevator |
| CN110155847A (en) * | 2019-06-14 | 2019-08-23 | 沈阳建筑大学 | A kind of used during elevator falling energy dissipation buffering device |
| CN111547597A (en) * | 2020-06-03 | 2020-08-18 | 德森克电梯（中国）有限公司 | Elevator buffering protection device that falls |
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2020
- 2020-06-03 CN CN202010492805.8A patent/CN111547597A/en active Pending
-
2021
- 2021-04-28 WO PCT/CN2021/090635 patent/WO2021244195A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5181697A (en) * | 1990-04-30 | 1993-01-26 | Diehl Gmbh & Co. | Impact member with multiple concentric gas cushions inflated in sequence |
| CN110271925A (en) * | 2018-03-16 | 2019-09-24 | 株式会社日立大厦系统 | Elevator and information cuing method |
| CN108946380A (en) * | 2018-09-06 | 2018-12-07 | 中海三菱电梯（苏州）有限公司 | A kind of lift car with buffering protection function |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021244195A1 (en) * | 2020-06-03 | 2021-12-09 | 德森克电梯（中国）有限公司 | Falling buffering and protection device for elevator |
| CN113026079A (en) * | 2021-03-20 | 2021-06-25 | 上海太同电镀有限公司 | Electroplating structure for automobile belt pulley |
| CN113003351A (en) * | 2021-03-22 | 2021-06-22 | 德森克电梯（中国）有限公司 | Traction type safety goods elevator |
| CN113148805A (en) * | 2021-05-06 | 2021-07-23 | 苏州固源电梯部件有限公司 | Elevator shaft arrangement structure |
| CN113148805B (en) * | 2021-05-06 | 2023-12-22 | 美嘉智选电梯有限公司 | Elevator well arrangement structure |
| CN113307128A (en) * | 2021-05-28 | 2021-08-27 | 富鑫特种设备有限公司 | Elevator falling protection device and protection method |
| CN115321303A (en) * | 2022-08-11 | 2022-11-11 | 广东长城电梯有限公司 | Elevator car safety arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021244195A1 (en) | 2021-12-09 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200818 |
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| RJ01 | Rejection of invention patent application after publication |