CN110467083B - Buffer mechanism for vertical conveying device - Google Patents
Buffer mechanism for vertical conveying device Download PDFInfo
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- CN110467083B CN110467083B CN201910558677.XA CN201910558677A CN110467083B CN 110467083 B CN110467083 B CN 110467083B CN 201910558677 A CN201910558677 A CN 201910558677A CN 110467083 B CN110467083 B CN 110467083B
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- spring
- rocker arm
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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
- B66B5/282—Structure thereof
Abstract
The invention discloses a buffer mechanism for a vertical conveying device, and belongs to the technical field of conveying. The buffer mechanism comprises a safety mechanism seat, a spring rod, a spring and a rocker arm; the safety mechanism seat comprises a seat body, a cover plate and a first rocker arm connecting part, wherein the seat body is detachably arranged on the outer wall of the vertical conveying channel, and the first end of the seat body is also provided with the first rocker arm connecting part used for being connected with the rocker arm; a mounting cavity is formed between the first end and the second end of the seat body; the spring rod and the spring are arranged in the mounting cavity, and a second rocker arm connecting part used for being connected with the rocker arm is further arranged on the end face, far away from the second section, of the first section of the spring rod; the rocker arm comprises a connecting part and a blocking part, one end of the connecting part, which is close to the blocking part, is hinged to the connecting part of the first rocker arm, one end of the connecting part, which is far away from the blocking part, is hinged to the connecting part of the second rocker arm, and the blocking part is arranged in a conveying cavity perpendicular to the conveying channel. The buffer mechanism provided by the invention can play a role in safe buffer, and avoid the falling accident of objects.
Description
Technical Field
The invention relates to the technical field of conveying, in particular to a buffer mechanism for a vertical conveying device.
Background
At present, the object is moved from a low position to a high position or from a high position to a low position by a vertical conveying mode. That is, a vertical conveying channel is used for communicating a high position and a low position, when an object needs to be moved from the low position to the high position, a steel wire rope can be used for connecting the object, and then the steel wire rope is pulled, so that the object can be moved from the low position to the high position along the vertical conveying channel.
However, when the object is heavy and the vertical transport distance is long, the wire rope is likely to be broken after long-term use. Once the steel wire rope is disconnected, objects fall due to self weight, and the objects and the conveying channel are damaged.
Disclosure of Invention
The embodiment of the invention provides a buffer mechanism for a vertical conveying device, which can play a role in safety buffer and avoid accidental falling accidents of objects. The technical scheme is as follows:
the invention provides a buffer mechanism for a vertical conveying device, which comprises a safety mechanism seat, a spring rod, a spring and a rocker arm, wherein the spring rod is arranged on the safety mechanism seat;
the safety mechanism seat comprises a seat body, a cover plate and a first rocker arm connecting part, wherein the seat body is detachably arranged on the outer wall of the vertical conveying channel, a first baffle plate is arranged at the first end of the seat body, a first through hole is formed in the middle of the first baffle plate, and the first rocker arm connecting part used for being connected with the rocker arm is arranged at the first end of the seat body; the second end of the seat body is provided with a second through hole, an installation cavity is formed between the first end and the second end of the seat body, the cover plate is coaxially arranged on the end surface of the second end of the seat body and is detachably connected with the seat body, and the middle part of the cover plate is provided with a third through hole;
the diameter of the third through hole is smaller than that of the first through hole, the diameter of the first through hole is smaller than that of the second through hole, and the diameter of the second through hole is equal to the inner diameter of the mounting cavity;
the spring rod and the spring are both arranged in the mounting cavity, the spring is sleeved on the spring rod, and the outer diameter of the spring is matched with the inner diameter of the mounting cavity; the spring rod comprises a first section, a second section and a second rocker arm connecting part, the first section of the spring rod is arranged in the first through hole, the outer diameter of the first section of the spring rod is matched with the diameter of the first through hole, and the second section of the spring rod penetrates through the third through hole; the end face, far away from the second section, of the first section of the spring rod is provided with a second rocker arm connecting part used for being connected with the rocker arm;
the rocking arm includes connecting portion and blocking part, connecting portion with the blocking part is the obtuse angle setting, being close to of connecting portion the one end of blocking part with first rocking arm connecting portion are articulated, keeping away from of connecting portion the one end of blocking part with second rocking arm connecting portion are articulated, the blocking part is used for setting up perpendicular delivery channel's conveying intracavity.
Further, first rocking arm connecting portion include two relative first otic placodes that set up, connecting portion are close to the one end of blocking portion is equipped with first pinhole, connecting portion are close to the one end and two of blocking portion hinge through first round pin axle between the first otic placode.
Further, second rocking arm connecting portion include the second otic placode of two relative settings, keeping away from of connecting portion the one end of blocking portion is equipped with the second pinhole, keeping away from of connecting portion the one end and two of blocking portion hinge through the second round pin axle between the second otic placode.
Further, a seat body connecting plate used for being connected with the seat body is arranged on the outer wall of the conveying channel, and the seat body is detachably connected with the seat body connecting plate through bolts.
Furthermore, a cover plate connecting plate is arranged on the outer wall of the second end of the base body, and the cover plate is detachably connected with the cover plate connecting plate through a bolt.
Furthermore, the buffer mechanism further comprises a first annular cushion block and a second annular cushion block, the first annular cushion block and the second annular cushion block are identical in structure, the outer diameter of the first annular cushion block is matched with the inner diameter of the installation cavity, and the inner diameter of the first annular cushion block is matched with the outer diameter of the second section of the spring rod;
the first annular cushion block and the second annular cushion block are sleeved outside the second section of the spring rod, the first annular cushion block and the second annular cushion block are arranged in the installation cavity at intervals, and the spring is located between the first annular cushion block and the second annular cushion block.
Furthermore, the buffer mechanism further comprises a round nut, an external thread matched with the round nut is arranged on the second section of the spring rod in the circumferential direction of one end, far away from the first section, of the spring rod, and the outer diameter of the round nut is smaller than that of the third through hole.
Further, the inner wall and the outer wall of the first annular cushion block and the second annular cushion block are coated with low-temperature lubricating grease.
Further, the inner wall of the mounting cavity, the part of the spring, which is in contact with the inner wall of the mounting cavity, and the outer wall of the spring rod are coated with low-temperature grease.
Further, the spring is a disc spring.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the seat body of the safety mechanism seat is detachably connected to the outer wall of the vertical conveying channel, and the blocking part of the rocker arm extends into the conveying cavity of the vertical conveying channel. If treat the in-process that carries the object to remove the eminence by the low in this vertical transportation intracavity, wire rope disconnection carries the object to fall because of the dead weight to on falling to the barrier section of rocking arm, produce the impact force, the barrier section of rocking arm can be followed vertical direction downstream under the effect of impact force, thereby drive the one end rebound of keeping away from the barrier section of connecting portion. Because the one end that is close to the stop part of connecting portion is articulated with first rocking arm connecting portion, the one end of keeping away from the stop part of connecting portion is articulated with second rocking arm connecting portion, and second rocking arm connecting portion are connected with the spring beam, and then the rocking arm can be lever motion, drives the spring beam along vertical direction rebound. At the moment, the first section of the spring rod can extrude the spring to absorb the impact force received by the blocking part of the rocker arm through the deformation of the spring. Therefore, the buffer mechanism provided by the invention can play a role in safe buffer, and avoid the accidental falling accidents of objects.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a buffer mechanism for a vertical transport apparatus according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a safety mechanism seat provided by an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of portion A of FIG. 1;
FIG. 4 is a side view of a safety mechanism seat provided by an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a spring rod according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic view of a buffer mechanism for a vertical transportation device according to an embodiment of the present invention, and as shown in fig. 1, the buffer mechanism 100 includes a safety mechanism seat 10, a spring rod 20, a spring 30, and a rocker arm 40. The vertical conveyance device includes a vertical conveyance passage 200.
The safety mechanism seat 10 includes a seat body 11, a cover plate 12, and a first swing arm connecting portion 13, and the seat body 11 is adapted to be detachably mounted on an outer wall of the vertical conveying passage 200.
Fig. 2 is a cross-sectional view of a safety mechanism seat according to an embodiment of the present invention, as shown in fig. 2, a first baffle 111 is disposed at a first end of a seat body 11, a first through hole 111a is disposed in a middle portion of the first baffle 111, and a first rocker arm connecting portion 13 for connecting with a rocker arm 40 is disposed at the first end of the seat body 11. The second end of the base body 11 is provided with a second through hole 11a, and a mounting cavity S is formed between the first end and the second end of the base body. The cover plate 12 is coaxially disposed on the end surface of the second end of the seat body 11, the cover plate 12 is detachably connected to the seat body 11, and a third through hole 12a is disposed in the middle of the cover plate 12.
The diameter of the third through hole 12a is smaller than that of the first through hole 111a, the diameter of the first through hole 111a is smaller than that of the second through hole 11a, and the diameter of the second through hole 11a is equal to the inner diameter D of the mounting cavity S.
Further, a cover connection plate 112 is disposed on an outer wall of the second end of the seat body 11, and the cover 12 is detachably connected to the cover connection plate 112 through a bolt 12 b.
In the present embodiment, the number of the bolts 12b may be set to be plural according to actual needs.
Fig. 3 is an enlarged schematic view of a portion a of fig. 1, as shown in fig. 2 and 3, the spring rod 20 and the spring 30 are both disposed in the mounting cavity S, the spring 30 is sleeved on the spring rod 20, and the outer diameter of the spring 30 matches the inner diameter of the mounting cavity S. The spring lever 20 includes a first section 21, a second section 22, and a second rocker arm connecting portion 23, the first section 21 of the spring lever 20 is disposed in the first through hole 111a, and the first section 21 of the spring lever 20 has an outer diameter matched with a diameter of the first through hole 111a, and the second section 22 of the spring lever 20 passes through the third through hole 12 a. The end face of the first section 21 of the spring rod 20, which is far away from the second section 22, is also provided with a second rocker arm connecting part 23 for connecting with the rocker arm 40.
The swing arm 40 comprises a connecting portion 41 and a blocking portion 42, the connecting portion 41 and the blocking portion 42 are arranged at an obtuse angle, one end of the connecting portion 41 close to the blocking portion 42 is hinged to the first swing arm connecting portion 13, one end of the connecting portion 41 far away from the blocking portion 42 is hinged to the second swing arm connecting portion 23, and the blocking portion 42 is arranged in a conveying cavity of the vertical conveying channel 200.
According to the embodiment of the invention, the base body of the safety mechanism base is detachably connected to the outer wall of the vertical conveying channel, and the blocking part of the rocker arm extends into the conveying cavity of the vertical conveying channel. If treat the in-process that carries the object to remove the eminence by the low in this vertical transportation intracavity, wire rope disconnection carries the object to fall because of the dead weight to on falling to the barrier section of rocking arm, produce the impact force, the barrier section of rocking arm can be followed vertical direction downstream under the effect of impact force, thereby drive the one end rebound of keeping away from the barrier section of connecting portion. Because the one end that is close to the stop part of connecting portion is articulated with first rocking arm connecting portion, the one end of keeping away from the stop part of connecting portion is articulated with second rocking arm connecting portion, and second rocking arm connecting portion are connected with the spring beam, and then the rocking arm can be lever motion, drives the spring beam along vertical direction rebound. At the moment, the first section of the spring rod can extrude the spring to absorb the impact force received by the blocking part of the rocker arm through the deformation of the spring. Therefore, the buffer mechanism provided by the invention can play a role in safe buffer, and avoid the accidental falling accidents of objects.
Fig. 4 is a side view of a safety mechanism seat according to an embodiment of the present invention, as shown in fig. 3 and 4, the first rocker arm connecting portion 13 includes two first lug plates 131 that are oppositely disposed, a first pin hole is formed at an end of the connecting portion 41 close to the blocking portion 42, and an end of the connecting portion 41 close to the blocking portion 42 is hinged to the two first lug plates 131 through a first pin 51.
Fig. 5 is a schematic structural diagram of a spring rod according to an embodiment of the present invention, as shown in fig. 3 and 5, the second rocker arm connecting portion 23 includes two second lug plates 231 disposed opposite to each other, a second pin hole is disposed at an end of the connecting portion 41 away from the blocking portion 42, and an end of the connecting portion 41 away from the blocking portion 42 is hinged to the two second lug plates 231 through a second pin 52.
Further, a seat connecting plate (not shown in the figure) for connecting with the seat 11 is arranged on the outer wall of the vertical conveying channel 200, and the seat 11 and the seat connecting plate are detachably connected through bolts.
Referring to fig. 4, when the seat body 11 provided by the embodiment of the present invention is provided with the plurality of threaded holes 11b and the plurality of pin holes 11c, positioning pins may be first disposed in the plurality of pin holes 11c to position the seat body 11 and the seat body connecting plate, and then connecting bolts are respectively disposed in the plurality of threaded holes 11b to fixedly connect the seat body 11 and the seat body connecting plate.
It should be noted that, in this embodiment, a plurality of seat connecting plates may be disposed on the outer wall of the vertical conveying channel 200, and a plurality of seat connecting plates may be equidistantly distributed along the circumferential direction of the vertical conveying channel 200, so as to install a plurality of buffer mechanisms along the circumferential direction of the vertical conveying channel 200.
Preferably, two buffer mechanisms are provided on the outer wall of the vertical conveying path 200 at an interval of 180 ° in the circumferential direction of the vertical conveying path 200. If the number of the buffer mechanisms is too large, a heavy load is applied to the vertical transfer passage 200. If the number of the buffer mechanisms is small, a good buffer effect cannot be achieved.
Alternatively, a plurality of seat connection plates may be provided on the outer wall of the vertical transfer passage 200 at intervals along the axial direction of the vertical transfer passage 200 to achieve multiple blocking in the axial direction of the vertical transfer passage.
Optionally, a plurality of adjusting shims may be disposed between the seat connecting plate on the outer wall of the vertical conveying channel 200 and the seat (11) for adjusting the distance between the seat (11) and the vertical conveying channel 200, so as to adjust the position of the swing arm 40 in the vertical conveying channel 200.
Further, referring to fig. 3, the buffer mechanism further includes a first annular spacer 61 and a second annular spacer 62, the first annular spacer 61 and the second annular spacer 62 have the same structure, the outer diameter of the first annular spacer 61 matches the inner diameter of the mounting cavity S, and the inner diameter of the first annular spacer 62 matches the outer diameter of the second section 22 of the spring rod 20.
The first annular cushion block 61 and the second annular cushion block 62 are sleeved outside the second section 22 of the spring rod 20, the first annular cushion block 61 and the second annular cushion block 62 are arranged in the mounting cavity S at intervals, and the spring 30 is located between the first annular cushion block 61 and the second annular cushion block 62.
The first annular pad 61 and the second annular pad 62 are arranged to increase the contact area with the spring 30, thereby being beneficial to dispersing the acting force generated when the spring is compressed.
Further, the buffer mechanism further comprises a round nut 70, an external thread matched with the round nut 70 is arranged on the outer wall of one end, away from the first section 21, of the second section 22 of the spring rod 20, and the outer diameter of the round nut 70 is smaller than the diameter of the third through hole 12 a. The first annular spacer 61 and the spring rod 20 can be formed into a unitary structure by providing the round nut 70.
In the process that the object to be conveyed moves from a lower position to a higher position in the conveying cavity perpendicular to the conveying channel 200, the object to be conveyed contacts with the blocking portion 42 of the rocker arm 40 to generate an upward acting force on the blocking portion 42 of the rocker arm 40, at the moment, the rocker arm 40 makes a lever motion to drive one end, far away from the blocking portion 42, of the connecting portion 41 to move downwards along the vertical direction, and then the spring rod 20 is driven to move downwards. Under the action of the round nut 70, the first annular pad 61 moves downward along with the spring rod 20, pressing the spring 30.
After the object to be conveyed moves above the blocking portion 42 through the blocking portion 42, the spring 30 is reset, and the first annular cushion block 61 drives the spring rod 20 to move upwards, so that the rocker arm 40 is reset.
Optionally, the inner and outer walls of the first and second annular spacers 61, 62 are coated with a low temperature grease to ensure that the first and second annular spacers 61, 62 move without binding.
Optionally, the inner wall of the mounting cavity S, the portion of the spring 30 contacting the inner wall of the mounting cavity S, and the outer wall of the spring rod 20 are coated with low temperature grease to ensure that there is no jamming when the spring 30 moves relative to the inner wall of the mounting cavity S and the spring rod 20, and no jamming when the spring rod 20 moves relative to the spring 30.
Further, the spring 30 is a disc spring. The disc spring is subjected to an extremely large load in a small space. Compared with other types of springs, the disc spring has larger deformation energy per unit volume and has good buffering and shock absorption capacity.
Optionally, the safety mechanism seat 10, the spring rod 20, the spring 30, the rocker arm 40, the first annular pad 61 and the second annular pad 62 in the embodiment of the present invention may be made of steel to ensure the structural strength of the cushion mechanism.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A buffer gear for a vertical conveyor, characterized in that the buffer gear (100) comprises a safety gear seat (10), a spring rod (20), a spring (30) and a rocker arm (40);
the safety mechanism seat (10) comprises a seat body (11), a cover plate (12) and a first rocker arm connecting part (13), wherein the seat body (11) is detachably mounted on the outer wall of the vertical conveying channel (200), a first baffle plate (111) is arranged at the first end of the seat body (11), a first through hole (111a) is formed in the middle of the first baffle plate (111), and the first rocker arm connecting part (13) used for being connected with the rocker arm (40) is arranged at the first end of the seat body (11); a second through hole (11a) is formed in the second end of the seat body (11), an installation cavity S is formed between the first end and the second end of the seat body (11), the cover plate (12) is coaxially arranged on the end face of the second end of the seat body (11), the cover plate (12) is detachably connected with the seat body (11), and a third through hole (12a) is formed in the middle of the cover plate (12);
the diameter of the third through hole (12a) is smaller than that of the first through hole (111a), the diameter of the first through hole (111a) is smaller than that of the second through hole (11a), and the diameter of the second through hole (11a) is equal to the inner diameter D of the mounting cavity S;
the spring rod (20) and the spring (30) are both arranged in the mounting cavity S, the spring (30) is sleeved on the spring rod (20), and the outer diameter of the spring (30) is matched with the inner diameter of the mounting cavity S; the spring rod (20) comprises a first section (21), a second section (22) and a second rocker arm connecting part (23), the first section (21) of the spring rod (20) is arranged in the first through hole (111a), the outer diameter of the first section (21) of the spring rod (20) is matched with the diameter of the first through hole (111a), and the second section (22) of the spring rod (20) penetrates through the third through hole (12 a); the end face, far away from the second section (22), of the first section (21) of the spring rod (20) is provided with a second rocker arm connecting part (23) used for being connected with the rocker arm (40);
rocking arm (40) are including connecting portion (41) and stop part (42), connecting portion (41) with stop part (42) are the obtuse angle setting, connecting portion (41) be close to the one end of stop part (42) with first rocking arm connecting portion (13) are articulated, keeping away from of connecting portion (41) the one end of stop part (42) with second rocking arm connecting portion (23) are articulated, stop part (42) are used for setting up in the conveying chamber of perpendicular conveying passageway (200).
2. The damping mechanism according to claim 1, wherein the first rocker arm connecting portion (13) comprises two first ear plates (131) arranged oppositely, a first pin hole is formed in one end of the connecting portion (41) close to the blocking portion (42), and one end of the connecting portion (41) close to the blocking portion (42) is hinged to the two first ear plates (131) through a first pin shaft (51).
3. The damping mechanism according to claim 1, wherein the second rocker arm connecting portion (23) comprises two second ear plates (231) which are oppositely arranged, a second pin hole is formed in one end of the connecting portion (41) which is far away from the blocking portion (42), and one end of the connecting portion (41) which is far away from the blocking portion (42) is hinged to the two second ear plates (231) through a second pin shaft (52).
4. The buffer mechanism according to claim 1, wherein a seat connecting plate for connecting with the seat (11) is provided on an outer wall of the vertical conveying channel, and the seat (11) and the seat connecting plate are detachably connected by a bolt.
5. The cushioning mechanism according to claim 1, wherein a cover connecting plate (112) is provided on an outer wall of the second end of the seat body (11), and the cover (12) and the cover connecting plate (112) are detachably connected by a bolt (12 b).
6. The damping mechanism according to any one of claims 1 to 5, further comprising a first annular spacer (61) and a second annular spacer (62), the first annular spacer (61) and the second annular spacer (62) having the same structure, the first annular spacer (61) having an outer diameter matching the inner diameter of the mounting cavity S, the first annular spacer (61) having an inner diameter matching the outer diameter of the second section (22) of the spring rod (20);
the first annular cushion block (61) and the second annular cushion block (62) are sleeved outside the second section of the spring rod (20), the first annular cushion block (61) and the second annular cushion block (62) are arranged in the installation cavity S at intervals, and the spring (30) is located between the first annular cushion block (61) and the second annular cushion block (62).
7. The damping mechanism according to claim 6, characterized in that the damping mechanism further comprises a round nut (70), wherein an end of the second section (22) of the spring rod (20) far away from the first section (21) is provided with an external thread matching the round nut (70) in a circumferential direction, and the outer diameter of the round nut (70) is smaller than the diameter of the third through hole (12 a).
8. The damping mechanism according to claim 6, characterized in that the inner and outer walls of the first and second annular shoes (61, 62) are coated with a low temperature grease.
9. The damping mechanism according to claim 6, characterized in that the inner wall of the mounting chamber S, the portion of the spring (30) in contact with the inner wall of the mounting chamber S, and the outer wall of the spring rod (20) are coated with a low temperature grease.
10. A damper mechanism according to claim 6, wherein the spring (30) is a disc spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910558677.XA CN110467083B (en) | 2019-06-26 | 2019-06-26 | Buffer mechanism for vertical conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910558677.XA CN110467083B (en) | 2019-06-26 | 2019-06-26 | Buffer mechanism for vertical conveying device |
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| Publication Number | Publication Date |
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| CN110467083A CN110467083A (en) | 2019-11-19 |
| CN110467083B true CN110467083B (en) | 2020-12-15 |
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| CN201910558677.XA Active CN110467083B (en) | 2019-06-26 | 2019-06-26 | Buffer mechanism for vertical conveying device |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09328269A (en) * | 1996-06-11 | 1997-12-22 | Hitachi Building Syst Co Ltd | Buffer device for elevator |
| CN2304638Y (en) * | 1997-04-09 | 1999-01-20 | 中国矿业大学 | Cage buffering device with elastic anti-shocking beam |
| KR20060082068A (en) * | 2006-06-20 | 2006-07-14 | 정만희 | Suspension using a leverage |
| CN103101824A (en) * | 2012-12-12 | 2013-05-15 | 苏州蓝王机床工具科技有限公司 | Anti-falling and buffering cage supporter |
| CN204873334U (en) * | 2015-08-18 | 2015-12-16 | 曼斯顿电梯(浙江)有限公司 | Take stabilising arrangement's passenger lift |
| CN107324173A (en) * | 2017-06-29 | 2017-11-07 | 徐州爱宝贝家具有限公司 | A kind of elevator blocking apparatus |
| CN207713208U (en) * | 2017-10-19 | 2018-08-10 | 深圳丰威源自动化设备有限公司 | A kind of elevator with fall arrest deceleration device |
| CN108639897A (en) * | 2018-07-31 | 2018-10-12 | 黄仕平 | A kind of elevator anti-fall mechanism of three-level buffering |
| CN109720960A (en) * | 2019-02-25 | 2019-05-07 | 朱爱民 | A kind of cabin elevator emergency safety defense controls platform and control system |
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