CN114104905B - Safety device of elevator car - Google Patents
Safety device of elevator car Download PDFInfo
- Publication number
- CN114104905B CN114104905B CN202111335692.1A CN202111335692A CN114104905B CN 114104905 B CN114104905 B CN 114104905B CN 202111335692 A CN202111335692 A CN 202111335692A CN 114104905 B CN114104905 B CN 114104905B
- Authority
- CN
- China
- Prior art keywords
- car
- plate
- fixed plate
- bottom plate
- locking
- 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
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- 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
-
- 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
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- 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
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- 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
Abstract
The invention discloses a safety device of an elevator car, which comprises a car body, wherein a lower bottom plate assembly comprises a car bottom plate, a fixed plate and a buffer device, a locking mechanism and a braking mechanism are respectively arranged on a rectangular box body, the locking mechanism can lock the car bottom plate and keep the rectangular box body motionless, the braking mechanism can reduce the descending speed of the car body through contact friction with an elevator shaft, and a driving mechanism and an acceleration sensor are arranged on the fixed plate; when the car body accidentally falls, the acceleration sensor can detect the abnormal speed of the car body, the driving mechanism is started to work, the driving mechanism respectively drives the locking mechanism to unlock and the braking mechanism to work, the emergency that the car stalls and falls can be handled, the impact force received by the car is reduced to the maximum extent, the probability of serious disability of passengers in the car is effectively reduced, and the running safety of the elevator car is improved.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a safety device of an elevator car.
Background
The elevator is a vertical elevator powered by an electric motor and is provided with a box-shaped nacelle for use in multi-story buildings for taking persons or carrying goods. With the continuous construction of high-rise buildings, elevators are widely used as vertical transportation means in buildings. The use of elevators also brings a large safety risk, the elevators mainly rely on rope clamps, but in case of a broken steel rope, the car will stall and fall, the consequences of which would be inconceivable if no fast and effective preventive measures were available.
Disclosure of Invention
The present invention is directed to a safety device for an elevator car, which solves one or more of the above-mentioned problems in the prior art.
In order to achieve the above purpose, the present invention adopts the following scheme: the utility model provides a safety device of elevator car, includes the car body, the car body is including the rectangle box that is surrounded by the polylith curb plate and set up upper cover plate and the lower bottom plate subassembly at the rectangle box upper and lower both ends, the lower bottom plate subassembly is including car bottom plate, fixed plate and buffer, the fixed plate is fixed to be set up at the lower extreme of rectangle box, the car bottom plate can reciprocate, buffer connects and sets up between fixed plate and car bottom plate be equipped with locking mechanical system and brake mechanism on the rectangle box respectively, locking mechanical system can with the car bottom plate locks and the rectangle box keeps motionless, brake mechanism can thereby reduce the decline speed of car body through contact friction with the elevator well be equipped with actuating mechanism and acceleration sensor on the fixed plate, actuating mechanism can be with locking mechanical unblock drive brake mechanism simultaneously, acceleration sensor and actuating mechanism signal connection to can detect the unusual change of acceleration of car body and thereby start actuating mechanism work.
Further, the actuating mechanism is including setting up push rod motor on the fixed plate, push rod motor and acceleration sensor signal connection, the piston rod of push rod motor sets up around and symmetrical the articulated connecting rod about the push rod motor is the center on the fixed plate bilateral symmetry has the fixing base be equipped with the track of controlling the setting in the track slide and be equipped with the actuating lever, the one end and the connecting rod of actuating lever articulate mutually, and the other end is equipped with the connecting plate and is connected with locking mechanical system, brake mechanism respectively.
Further, the locking mechanism comprises clamping blocks which are arranged in a bilateral symmetry mode, the clamping blocks can slide left and right on the side wall of the rectangular box body, clamping grooves are formed in one side of the clamping blocks, the outer edge of the car bottom plate can be clamped into the clamping grooves, and the clamping blocks are fixedly connected with the connecting plate.
Further, the braking mechanism comprises a braking plate arranged on the outer side of the connecting plate, and a rubber pad is arranged on the outer side of the braking plate.
Further, a unidirectional mechanism which can enable the driving rod to move outwards in a unidirectional way is also arranged on the track.
Further, the unidirectional mechanism comprises a groove arranged on the bottom wall of the track, a locking block and a spring for enabling the locking block to be in an outward state are movably arranged in the groove, the inner side of the upper end of the locking block is of an inclined surface structure, a plurality of locking holes are formed in the surface of the lower end of the driving rod at intervals along the left-right direction, and the locking block can be inserted into the locking holes.
Further, the buffer device comprises a plurality of rectangular springs, wherein the four rectangular springs are uniformly distributed on the fixed plate.
Further, buffer rubber pads are arranged at four corners of the upper surface of the fixing plate.
Further, the lower extreme surface of fixed plate is equipped with a plurality of air bags, air bags is provided with four, and the equipartition sets up in the four corners department of fixed plate, air bags and acceleration sensor signal connection.
In summary, the beneficial effects of the invention are as follows: when the car body accidentally falls, the acceleration sensor can detect the abnormal speed of the car body, the driving mechanism is started to work, the driving mechanism respectively drives the locking mechanism to unlock and the braking mechanism to work, and the locking mechanism unlocks the car bottom plate, so that the car bottom plate has certain elasticity through the buffer device, the car body is prevented from being damaged due to the contact between the rigidity and the ground, in addition, the braking mechanism can rub the wall surface of the elevator shaft, and the falling speed of the car body is further reduced; and then deal with the emergency that the car stalls and falls, furthest subdue the impact that the car received, effectively reduced the passenger in the car and appear the probability of great disability, improved the security that the elevator car moved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of a partial cross-sectional structure of the present invention.
Fig. 3 is an enlarged schematic view of fig. 2 at a in accordance with the present invention.
Fig. 4 is a schematic structural view of the lower plate assembly of the present invention.
Detailed Description
The following detailed description provides many different embodiments, or examples, for implementing the invention. Of course, these are merely embodiments or examples and are not intended to be limiting. In addition, repeated reference numerals, such as repeated numbers and/or letters, may be used in various embodiments. These repetition are for the purpose of simplicity and clarity in describing the invention and do not in itself dictate a particular relationship between the various embodiments and/or configurations discussed.
The invention is further described by the following drawings and detailed description: the safety device of the elevator car as shown in fig. 1 to 4 comprises a car body 1, wherein the car body 1 comprises a rectangular box body 2 formed by surrounding a plurality of side plates, an upper cover plate 3 and a lower bottom plate assembly 4 which are arranged at the upper end and the lower end of the rectangular box body 2, the lower bottom plate assembly 4 comprises a car bottom plate 5, a fixed plate 6 and a buffer device, the fixed plate 6 is fixedly arranged at the lowest end of the rectangular box body 2, the car bottom plate 5 can move up and down, the buffer device is connected between the fixed plate 6 and the car bottom plate 5, the rectangular box body 2 is respectively provided with a locking mechanism and a braking mechanism, the locking mechanism can lock the car bottom plate 5 and the rectangular box body 2, the braking mechanism can reduce the descending speed of the car body 1 through contact friction with an elevator shaft, a driving mechanism and an acceleration sensor 7 are arranged on the fixed plate 6, the driving mechanism can unlock the locking mechanism and the acceleration sensor 7, and the driving mechanism can be simultaneously driven to work, and the driving mechanism is connected with the car body 1 to detect abnormal driving signals to start up and drive the car body to work; when the car body 1 accidentally falls, the acceleration sensor 7 detects the abnormal speed of the car body 1, the driving mechanism is started to work, the driving mechanism drives the locking mechanism to unlock and the braking mechanism to work respectively, and the locking mechanism unlocks the car bottom plate 5, so that the car bottom plate 5 has certain elasticity through the buffer device, the damage of the car body 1 caused by the contact of rigidity and the ground is prevented, in addition, the braking mechanism can rub the wall surface of an elevator shaft, and the falling speed of the car body 1 is further reduced; and then deal with the emergency that the car stalls and falls, furthest subdue the impact that the car received, effectively reduced the passenger in the car and appear the probability of great disability, improved the security that the elevator car moved.
Referring to fig. 2 and 4, the driving mechanism includes a push rod motor 21 disposed on the fixed plate 6, the push rod motor 21 is in signal connection with the acceleration sensor 7, a piston rod of the push rod motor 21 is disposed in front and back and symmetrically hinged with a connecting rod 22, a fixed seat 23 is disposed on the fixed plate 6 and symmetrically disposed on left and right sides with the push rod motor 21 as a center, a track 24 disposed on the fixed seat 23 is disposed on left and right sides, a driving rod 25 is disposed in the track 24 in a sliding manner, one end of the driving rod 25 is hinged with the connecting rod 22, and the other end is provided with a connecting plate 26 and is respectively connected with the locking mechanism and the braking mechanism; when the brake mechanism works, the piston rod of the push rod motor 21 is contracted inwards, so that the drive rod 25 is driven to move outwards along the track 25 through the connecting rod 22, and the locking mechanism is driven to unlock and the brake mechanism is driven to work at the same time.
Specifically, the locking mechanism comprises clamping blocks 31 which are symmetrically arranged left and right, the clamping blocks 31 can slide left and right on the side wall of the rectangular box body 2, clamping grooves 32 are formed in one side of the clamping blocks 31, the outer edges of the car bottom plate 5 can be clamped into the clamping grooves 32, the clamping blocks 31 are fixedly connected with the connecting plates 26, the driving rods 25 drive the clamping blocks 31 to move outwards, so that the clamping grooves 32 on the clamping blocks 31 are separated from the outer edges of the car bottom plate 5, unlocking is achieved, the car bottom plate 5 has buffering capacity, and the injury rate of passengers is reduced.
Specifically, the braking mechanism comprises a braking plate 41 arranged on the outer side of the connecting plate 26, a rubber pad is arranged on the outer side of the braking plate 41, the driving rod 25 drives the braking plate 41 to move outwards to contact with the wall surface of the elevator shaft for friction, so that a braking function is realized, and the descending speed of the car body 1 is reduced.
In order to further improve the braking capability, the rail 24 is further provided with a unidirectional mechanism capable of enabling the driving rod 25 to move outwards in a unidirectional manner, the unidirectional mechanism comprises a groove 61 arranged on the bottom wall of the rail 24, a locking block 62 and a spring 63 for enabling the locking block 62 to keep an outwards state are movably arranged in the groove 61, the inner side of the upper end of the locking block 62 is provided with a bevel structure 64, the lower end surface of the driving rod 25 is provided with a plurality of locking holes 65 at intervals along the left-right direction, and the locking block 62 can be inserted into the locking holes 65, so that the driving rod 25 drives the braking plate 41 to keep an outwards state, and the braking plate 41 keeps contact with the wall surface of an elevator shaft all the time.
In the invention, the buffer device comprises a plurality of rectangular springs 71, and the rectangular springs 71 are arranged in four and uniformly distributed on the fixed plate 6.
In the present invention, the buffer rubber pads 81 are provided at four corners of the upper surface of the fixing plate 6, and the highest end surface of the buffer rubber pad 81 is higher than the push rod motor 21, the driving rod 25, etc., so that the buffer rubber pad 81 is contacted with the car bottom plate 5 for the first time, thereby further improving the buffer capacity.
In the invention, the plurality of air bags 91 are arranged on the lower end surface of the fixed plate 6, four air bags 91 are uniformly arranged at four corners of the fixed plate 6, the air bags 91 are in signal connection with the acceleration sensor 7, and when the car body 1 accidentally falls down, the air bags 91 are exploded, so that the impact force of the car is further reduced, and the running safety of the elevator car is improved.
While the basic principles and main features of the present invention and advantages of the present invention have been shown and described in connection with the above, it will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, but is described in the above embodiments and description merely to illustrate the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a safety device of elevator car, including car body (1), car body (1) is including rectangle box (2) and upper cover plate and lower bottom plate subassembly (4) of setting both ends about rectangle box (2) that are formed around by the polylith curb plate, its characterized in that: the lower bottom plate assembly (4) comprises a car bottom plate (5), a fixed plate (6) and a buffer device, wherein the fixed plate (6) is fixedly arranged at the lowest end of the rectangular box body (2), the car bottom plate (5) can move up and down, the buffer device is connected between the fixed plate (6) and the car bottom plate (5), a locking mechanism and a brake mechanism are respectively arranged on the rectangular box body (2), the locking mechanism can lock the car bottom plate (5) and keep the rectangular box body (2) still, the brake mechanism can reduce the descending speed of the car body (1) through contact friction with a lift well, a driving mechanism and an acceleration sensor (7) are arranged on the fixed plate (6), the driving mechanism can unlock the locking mechanism and simultaneously drive the brake mechanism to work, and the acceleration sensor (7) is in signal connection with the driving mechanism and can detect abnormal acceleration change of the car body (1) so as to start the driving mechanism to work; the driving mechanism comprises a push rod motor (21) arranged on the fixed plate (6), the push rod motor (21) is in signal connection with the acceleration sensor (7), a piston rod of the push rod motor (21) is arranged in front and back and symmetrically hinged with a connecting rod (22), a fixed seat (23) is symmetrically arranged on the fixed plate (6) left and right by taking the push rod motor (21) as a center, a track (24) arranged left and right is arranged on the fixed seat (23), a driving rod (25) is arranged in the track (24) in a sliding manner, one end of the driving rod (25) is hinged with the connecting rod (22), and the other end of the driving rod is provided with a connecting plate (26) and is respectively connected with the locking mechanism and the braking mechanism; the locking mechanism comprises clamping blocks (31) which are symmetrically arranged left and right, the clamping blocks (31) can slide left and right on the side wall of the rectangular box body (2), a clamping groove (32) is formed in one side of the clamping blocks (31), the outer edge of the car bottom plate (5) can be clamped into the clamping groove (32), and the clamping blocks (31) are fixedly connected with the connecting plate (26); the braking mechanism comprises a braking plate (41) arranged on the outer side of the connecting plate (26), and a rubber pad is arranged on the outer side of the braking plate (41).
2. The safety arrangement of an elevator car according to claim 1, characterized in that: the track (24) is also provided with a unidirectional mechanism which can enable the driving rod (25) to move outwards in a unidirectional way.
3. The safety arrangement of an elevator car according to claim 2, characterized in that: the unidirectional mechanism comprises a groove (61) arranged on the bottom wall of the track (24), a locking block (62) and a spring (63) which enables the locking block (62) to be kept in an outward state are movably arranged in the groove (61), the inner side of the upper end of the locking block (62) is an inclined surface structure (64), a plurality of locking holes (65) are formed in the surface of the lower end of the driving rod (25) at intervals along the left-right direction, and the locking block (62) can be inserted into the locking holes (65).
4. A safety arrangement for an elevator car according to claim 1 or 2 or 3, characterized in that: the buffer device comprises a plurality of rectangular springs (71), wherein the four rectangular springs (71) are uniformly distributed on the fixed plate (6).
5. A safety arrangement for an elevator car according to claim 1 or 2 or 3, characterized in that: four corners of the upper surface of the fixed plate (6) are provided with buffer rubber pads (81).
6. A safety arrangement for an elevator car according to claim 1 or 2 or 3, characterized in that: the lower extreme surface of fixed plate (6) is equipped with a plurality of air bags (91), air bags (91) are provided with four, and the equipartition sets up in the four corners department of fixed plate (6), air bags (91) and acceleration sensor (7) signal connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111335692.1A CN114104905B (en) | 2021-11-11 | 2021-11-11 | Safety device of elevator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111335692.1A CN114104905B (en) | 2021-11-11 | 2021-11-11 | Safety device of elevator car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114104905A CN114104905A (en) | 2022-03-01 |
| CN114104905B true CN114104905B (en) | 2023-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111335692.1A Active CN114104905B (en) | 2021-11-11 | 2021-11-11 | Safety device of elevator car |
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| Country | Link |
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| CN (1) | CN114104905B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116788949B (en) * | 2023-08-21 | 2023-10-31 | 上海淳信机电科技股份有限公司 | Polyurethane buffer device with warp knitting fabric reinforcing structure |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202226493U (en) * | 2011-08-16 | 2012-05-23 | 广东珠江中富电梯有限公司 | Lower mechanical preventing device of elevator |
| CN202657792U (en) * | 2012-06-12 | 2013-01-09 | 彭栓栓 | Integrated rebounce-proof elevator spring buffer |
| KR20140006976A (en) * | 2011-04-05 | 2014-01-16 | 미쓰비시덴키 가부시키가이샤 | Elevator device |
| JP2014076868A (en) * | 2012-10-09 | 2014-05-01 | Toshiba Elevator Co Ltd | Elevator and buffer device for elevator |
| WO2015010480A1 (en) * | 2013-07-23 | 2015-01-29 | 东南电梯股份有限公司 | Specific elevator anti-fall buffer based on flexible guidance |
| WO2016078435A1 (en) * | 2014-11-18 | 2016-05-26 | 苏州通润驱动设备股份有限公司 | Traction sheave safety device and elevator car emergency stop method thereof |
| CN205739862U (en) * | 2016-04-27 | 2016-11-30 | 珠江富士电梯（中国）有限公司 | A kind of elevator safety system |
| CN207061591U (en) * | 2017-07-03 | 2018-03-02 | 佛山住友富士电梯工程有限公司 | A kind of elevator cage of band emergency facility |
| EP3339229A1 (en) * | 2016-12-22 | 2018-06-27 | Aip Aps | Fall-arrest device test system and method |
| CN109179147A (en) * | 2018-11-01 | 2019-01-11 | 浙江华夏电梯有限公司 | A kind of mechanical buffering unlocking mechanism of elevator speed pendant |
| CN109850720A (en) * | 2019-01-18 | 2019-06-07 | 徐褚 | A kind of elevator buffer unit out of control and elevator |
| CN210214460U (en) * | 2019-04-18 | 2020-03-31 | 广州西子电梯有限公司 | Protection device for preventing personnel from falling |
| CN111204633A (en) * | 2020-03-31 | 2020-05-29 | 河南省龙基建设工程有限公司 | Elevator shaft car buffer device |
| CN113401765A (en) * | 2021-07-06 | 2021-09-17 | 亚洲富士长林电梯（新余）有限公司 | Air pressure type elevator |
-
2021
- 2021-11-11 CN CN202111335692.1A patent/CN114104905B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140006976A (en) * | 2011-04-05 | 2014-01-16 | 미쓰비시덴키 가부시키가이샤 | Elevator device |
| CN202226493U (en) * | 2011-08-16 | 2012-05-23 | 广东珠江中富电梯有限公司 | Lower mechanical preventing device of elevator |
| CN202657792U (en) * | 2012-06-12 | 2013-01-09 | 彭栓栓 | Integrated rebounce-proof elevator spring buffer |
| JP2014076868A (en) * | 2012-10-09 | 2014-05-01 | Toshiba Elevator Co Ltd | Elevator and buffer device for elevator |
| WO2015010480A1 (en) * | 2013-07-23 | 2015-01-29 | 东南电梯股份有限公司 | Specific elevator anti-fall buffer based on flexible guidance |
| WO2016078435A1 (en) * | 2014-11-18 | 2016-05-26 | 苏州通润驱动设备股份有限公司 | Traction sheave safety device and elevator car emergency stop method thereof |
| CN205739862U (en) * | 2016-04-27 | 2016-11-30 | 珠江富士电梯（中国）有限公司 | A kind of elevator safety system |
| EP3339229A1 (en) * | 2016-12-22 | 2018-06-27 | Aip Aps | Fall-arrest device test system and method |
| CN207061591U (en) * | 2017-07-03 | 2018-03-02 | 佛山住友富士电梯工程有限公司 | A kind of elevator cage of band emergency facility |
| CN109179147A (en) * | 2018-11-01 | 2019-01-11 | 浙江华夏电梯有限公司 | A kind of mechanical buffering unlocking mechanism of elevator speed pendant |
| CN109850720A (en) * | 2019-01-18 | 2019-06-07 | 徐褚 | A kind of elevator buffer unit out of control and elevator |
| CN210214460U (en) * | 2019-04-18 | 2020-03-31 | 广州西子电梯有限公司 | Protection device for preventing personnel from falling |
| CN111204633A (en) * | 2020-03-31 | 2020-05-29 | 河南省龙基建设工程有限公司 | Elevator shaft car buffer device |
| CN113401765A (en) * | 2021-07-06 | 2021-09-17 | 亚洲富士长林电梯（新余）有限公司 | Air pressure type elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114104905A (en) | 2022-03-01 |
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