CN109179146A - Elevator car buffer device - Google Patents
Elevator car buffer device Download PDFInfo
- Publication number
- CN109179146A CN109179146A CN201811287903.7A CN201811287903A CN109179146A CN 109179146 A CN109179146 A CN 109179146A CN 201811287903 A CN201811287903 A CN 201811287903A CN 109179146 A CN109179146 A CN 109179146A
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- Prior art keywords
- buffer
- lift car
- arc
- sliding block
- rotary table
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- 239000000872 buffer Substances 0.000 title claims abstract description 104
- 230000003139 buffering effect Effects 0.000 claims abstract description 44
- 239000007853 buffer solution Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims description 14
- 238000013016 damping Methods 0.000 claims description 13
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- 230000008685 targeting Effects 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 8
- 230000037237 body shape Effects 0.000 claims description 3
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
Landscapes
- Cage And Drive Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
本发明涉及电梯设备技术领域，具体涉及一种电梯轿厢缓冲装置，它解决了现有电梯缓冲效果差等问题，包括电梯底坑体、电梯轿厢、分体式缓冲器和缓冲器底座，缓冲器底座上通过滑动导向结构设有若干弧形滑动块，弧形滑动块周向分布合围形成圆锥通道，弧形滑动块周向外侧和缓冲器底座之间通过水平缓冲结构相连，圆锥通道内插设有缓冲圆台，缓冲圆台上端中心具有弧形凹槽，在电梯轿厢底部设有与弧形凹槽相对应的安全气囊，安全气囊和充气结构相连，在电梯轿厢内设有速度感应模块，速度感应模块和MCU模块相连，且所述的MCU模块和充气结构相连。本发明拥有缓冲减震效果好、反弹力小、结构简单、易于保养等优点。
The invention relates to the technical field of elevator equipment, in particular to a buffer device for an elevator car, which solves the problems of poor buffering effect of the existing elevator, and includes an elevator pit body, an elevator car, a split buffer and a buffer base. A number of arc-shaped sliding blocks are arranged on the base of the device through the sliding guide structure. The arc-shaped sliding blocks are distributed circumferentially to form a conical channel. The circumferential outer side of the arc-shaped sliding block and the buffer base are connected by a horizontal buffer structure. There is a buffer round table, the center of the upper end of the buffer round table has an arc-shaped groove, and an airbag corresponding to the arc-shaped groove is arranged at the bottom of the elevator car. , the speed sensing module is connected with the MCU module, and the MCU module is connected with the gas-filled structure. The invention has the advantages of good buffering and shock absorption effect, small rebound force, simple structure, easy maintenance and the like.
Description
Technical field
The present invention relates to technical field of elevator equipment, and in particular to a kind of lift car buffer unit.
Background technique
Elevator is applied in various buildings more and more widely.The life of the reliability of elevator and safety and passenger
Life safety is closely bound up, therefore elevator needs to install necessary safety detection and safety convenience instrument, such as buffer of elevator.It is slow
The last one link that device is elevator safety system is rushed, plays the role of buffering in elevator failure or accident crouching bottom.From
And alleviate the people in elevator or elevator from directly hitting.The classification of buffer of elevator also has very much, but existing elevator is slow
Rushing device more or less has some disadvantages, or have can improved place, such as the most basic buffering effect of some buffers is not
It is good, it cannot be guaranteed that the safety of elevator；Some buffer structures are complicated；The alleviation effects of some buffer of elevator are fine but cannot
The phenomenon that solving elevator continuous vibration is unfavorable for due to its constituent material or assembly method to it there are also some buffer of elevator
Maintenance is repaired, also some spring buffer elastic force are larger, it is possible to cause damages to passenger.
In order to solve the shortcomings of the prior art, people have carried out long-term exploration, propose miscellaneous solution
Scheme.For example, Chinese patent literature discloses a kind of elevator buffer device [201721025209.9], including elevator pit, electricity
Terraced pit is internally provided with lift car, and the bottom of elevator pit is equipped with buffer unit, and lift car bottom is provided with second
Inner wall is equipped with air bag between lift car bottom and the second inner wall, buffer unit includes buffering plate, buffering plate it is interior
Wall is equipped with several buffers, and the inside of buffering plate is equipped with hydraulic damping device, hydraulic damping device include hydraulic cylinder and
Piston rod, piston rod one end are located at the inside of hydraulic cylinder, and the other end of piston rod extends to the outside of hydraulic cylinder and connection
It is ramed, the inside of hydraulic cylinder is equipped with piston, block and reset spring, and piston and block pass through nut and be fixed on piston
On bar, the lower surface of hydraulic cylinder inner cavity is arranged in reset spring.
Above scheme solves existing buffer of elevator to a certain extent, and structure is complicated, buffering effect is poor, bounce is big
The problem of, but the program still remains many deficiencies, for example, lack multi-buffer, it can not be in time by vertical impact force point
Dissipate etc..
Summary of the invention
Regarding the issue above, the present invention provides a kind of design is rationally, it is slow using the lift car of multi-buffer
Flushing device.
In order to achieve the above objectives, present invention employs following technical proposals: this lift car buffer unit, including has interior
The elevator pit body of chamber, vertical direction sliding is equipped with lift car in the elevator pit body, sets in elevator pit body bottom
There is the split type buffer being located at immediately below lift car, the split type buffer includes being horizontally set on elevator pit body
The buffer base of bottom, on the buffer base by gliding movement targeting structure be equipped with it is several be made of polyurethane material and
Arc-shaped arc sliding block, the circumferentially distributed setting of the arc sliding block and the arc sliding block inner circumferential conjunction
The circular cone channel to be formed in up big and down small cone tube shape is enclosed, between the arc sliding block outer circumferential and buffer base
It is connected by horizontal buffer structure, is inserted with and is made of polyurethane material and in up big and down small circular cone in the circular cone channel
The buffering rotary table of stage body shape, the buffering rotary table upper end center have arc groove, are equipped with and arc in lift car bottom
The corresponding air bag of groove, and the air bag is connected with inflatable structure, and velocity response is equipped in lift car
Module, and the velocity response module is connected with MCU module, and the MCU module is connected with inflatable structure.Work as elevator car
Air bag is opened when carriage body falls, and the arc groove contact first and on buffering rotary table forms first order buffering, works as air bag
After explosion, lift car bottom and buffering rotary table contact, buffering rotary table, which moves down, squeezes arc sliding block in slide-and-guide knot
It is moved under the action of structure to both sides, forms second level buffering, during this, horizontal buffer structure slows down returning in horizontal direction
The inclined contact surface of elastic force and vibration, buffering rotary table and arc sliding block slows down pressure and vibration on inclined direction, and main
The material for wanting moving component buffering rotary table and arc sliding block is polyurethane material, possesses intensity height, resilience is good, heat-resisting
The high advantage of property, facilitates the maintenance of buffer itself.
In above-mentioned lift car buffer unit, the circular cone channel week has conical friction face inwardly, described
Conical friction face and the outer circumferential of buffering rotary table be in contact, the buffering rotary table upper end extends to above circular cone channel.
In above-mentioned lift car buffer unit, the buffer base is in the form of annular discs, the arc sliding block
Quantity be four and the arc sliding block is circumferentially uniformly distributed to surround to form ring using the center of buffer base as the center of circle
Shape structure, the circular cone channel are formed in ring structure.
In above-mentioned lift car buffer unit, the gliding movement targeting structure includes four circumferential settings in buffer
Sliding groove on pedestal, the sliding groove are circumferentially uniformly distributed setting as the center of circle using the center of buffer base, and described
Sliding groove one end extend to buffer base center, the other end extends to buffer base outer circumferential, and the arc is sliding
Motion block bottom is equipped with sliding block corresponding with sliding groove, and the sliding block mutually slides with sliding groove and is connected.
In above-mentioned lift car buffer unit, the horizontal buffer structure includes several is arranged in buffer base
Outer circumferential and the buffing pad being arranged in vertical direction, the buffing pad are corresponded with arc sliding block outside respectively, institute
The arc sliding block outer circumferential stated, which is equipped with, to extend outwardly and is in horizontally disposed buffer bar, and the buffing pad is equipped with and delays
The corresponding mounting hole of jumper bar, the buffer bar is through in mounting hole and being equipped on buffer bar can be such that arc sliding block keeps
Towards the elastic buffer member of buffer base center movement trend.
In above-mentioned lift car buffer unit, the elastic buffer member includes the buffering being set on buffer bar
Spring, and described buffer spring one end is resisted against on buffing pad, the other end acts on the outside of arc sliding block.
In above-mentioned lift car buffer unit, the buffer bar and sliding groove are arranged in parallel, and described
Mounting hole week inwardly ease up jumper bar outer circumferential between be equipped with linear bearing.
In above-mentioned lift car buffer unit, the vertical direction height size of the buffering rotary table is not more than arc
The vertical direction height size of sliding shoe, the ratio between the diameter of buffering rotary table upper end and the diameter of lower end
Example is 3-5:1.
In above-mentioned lift car buffer unit, plating is equipped with damping layer on the conical friction face, and described slow
The outer circumferential and damping layer for rushing rotary table are in contact.
In above-mentioned lift car buffer unit, the lift car bottom centre has mounting groove, and described fills
Gas structure setting is in mounting groove, and described air bag one end extends in mounting groove and is connected with inflatable structure, another
End extends to below lift car.
Compared with prior art, the present invention has the advantages that bounce is small using energy absorbing type buffer, it ensure that and multiply
The safety of visitor；It is simple with structure；Impact force straight down can be dispersed in horizontal and inclined direction power, buffering is imitated with damping
Fruit is good；The main material of buffer is the polyurethane material and damping material of high sexual valence, damage is less prone to, so that buffer sheet
The maintenance of body is fine.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the connection block diagram of air bag of the invention；
Fig. 3 is the front section view of split type buffer of the invention；
Fig. 4 is the top view of split type buffer of the invention；
In figure, buffer base 1, gliding movement targeting structure 2, sliding groove 21, sliding block 22, arc sliding block 3, circular cone channel 4,
Conical friction face 41, damping layer 42, horizontal buffer structure 5, buffing pad 51, buffer bar 52, mounting hole 53, elastic buffer member
54, buffer spring 55, linear bearing 56, buffering rotary table 6, arc groove 61, elevator pit body 7, lift car 71, air bag
711, inflatable structure 712, velocity response module 713, MCU module 714, mounting groove 715, split type buffer 72.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in Figs 1-4, this lift car buffer unit, including the elevator pit body 7 with inner cavity, elevator pit body 7
Interior vertical direction sliding is equipped with lift car 71, and the fission being located at immediately below lift car 71 is equipped in 7 bottom of elevator pit body
Formula buffer 72, split type buffer 72 include the buffer base 1 for being horizontally set on 7 bottom of elevator pit body, buffer bottom
On seat 1 by gliding movement targeting structure 2 be equipped with it is several be made of polyurethane material and arc-shaped arc sliding block 3, arc cunning
Motion block 3 it is circumferentially distributed setting and 3 inner circumferential of arc sliding block surround the circular cone channel to be formed in up big and down small cone tube shape
4, it is connected between 3 outer circumferential of arc sliding block and buffer base 1 by horizontal buffer structure 5, is inserted in circular cone channel 4
The buffering rotary table 6 of up big and down small circular cone stage body shape is made and is in of polyurethane material, and buffering 6 upper end center of rotary table has arc
Groove 61 is equipped with air bag 711 corresponding with arc groove 61 in 71 bottom of lift car, and air bag 711 and fills
Depressed structure 712 is connected, and velocity response module 713, and velocity response module 713 and MCU module 714 are equipped in lift car 71
It is connected, and MCU module 714 is connected with inflatable structure 712, it is preferable that 71 bottom centre of lift car here has mounting groove
715, inflatable structure 712 is arranged in mounting groove 715, and 711 one end of air bag extends in mounting groove 715 and and inflation knot
Structure 712 is connected, and the other end extends to 71 lower section of lift car.When elevator cab 71 falls air bag 711 open, first and
The arc groove 61 buffered on rotary table 6 contacts, and forms first order buffering, after 711 explosion of air bag, 71 bottom of lift car
It is contacted with buffering rotary table 6, buffering rotary table 6, which moves down, squeezes arc sliding block 3 under the action of gliding movement targeting structure to both sides
Movement forms second level buffering, and during this, horizontal buffer structure 5 slows down screen resilience and vibration in horizontal direction, buffering
The inclined contact surface of rotary table 6 and arc sliding block 3 slows down pressure and vibration on inclined direction, and main motion parts buffer
The material of rotary table 6 and arc sliding block 3 is polyurethane material, possesses intensity height, and resilience is good, the high advantage of heat resistance,
Facilitate the maintenance of buffer itself.
Specifically, circular cone channel here has conical friction face 41, conical friction face 41 and buffering circle for 4 weeks inwardly
The outer circumferential of platform 6 is in contact, and buffering 6 upper end of rotary table extends to 4 top of circular cone channel, wherein conical friction face 41 here
Upper plating is equipped with damping layer 42, and the outer circumferential of buffering rotary table 6 and damping layer 42 are in contact.It can be increased by damping layer 42 and be rubbed
Power is wiped, to slow down the decrease speed of buffering rotary table 6.
Further, here buffer base 1 is in the form of annular discs, and the quantity of arc sliding block 3 is four and arc sliding
Block 3 is circumferentially uniformly distributed to surround using the center of buffer base 1 as the center of circle to form ring structure, and circular cone channel 4 is formed in annular
In structure.Wherein, gliding movement targeting structure 2 here includes that the sliding groove 21 on buffer base 1 is arranged in four circumferential directions, is slided
Slot 21 is circumferentially uniformly distributed setting as the center of circle using the center of buffer base 1, and 21 one end of sliding groove extends to buffer bottom
1 center of seat, the other end extend to 1 outer circumferential of buffer base, and 3 bottom of arc sliding block is equipped with and sliding groove 21 is corresponding
Sliding block 22, and sliding block 22 is connected with the mutually sliding of sliding groove 21.
Preferably, horizontal buffer structure 5 here includes several settings in 1 outer circumferential of buffer base and in vertical side
To the buffing pad 51 of setting, buffing pad 51 is corresponded on the outside of arc sliding block 3 respectively, and 3 outer circumferential of arc sliding block is set
Have and extend outwardly and be in horizontally disposed buffer bar 52, buffing pad 51 is equipped with mounting hole 53 corresponding with buffer bar 52, delays
Jumper bar 52 is through in mounting hole 53 and being equipped on buffer bar 52 can make arc sliding block 3 retain towards 1 center of buffer base
The elastic buffer member 54 of movement tendency.
For the impact force for overcoming arc sliding block 3 to be displaced outwardly, elastic buffer member 54 here is slow including being set in
Buffer spring 55 on jumper bar 52, and 55 one end of buffer spring is resisted against on buffing pad 51, the other end acts on arc sliding block 3
Outside.Here buffer bar 52 and sliding groove 21 is arranged in parallel, and mounting hole 53 weeks ease up inwardly jumper bar 52 weeks it is outside
Linear bearing 56 is equipped between side.Wherein, the vertical direction height size of buffering rotary table 6 here is not more than arc sliding block 3
Vertical direction height size, buffer 6 upper end of rotary table diameter and lower end diameter between ratio be 4:1.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although it is sliding that buffer base 1, gliding movement targeting structure 2, sliding groove 21, sliding block 22, arc is used more herein
Motion block 3, circular cone channel 4, conical friction face 41, damping layer 42, horizontal buffer structure 5, buffing pad 51, buffer bar 52, mounting hole
53, elastic buffer member 54, buffer spring 55, linear bearing 56, buffering rotary table 6, arc groove 61, elevator pit body 7, elevator
It is carriage 71, air bag 711, inflatable structure 712, velocity response module 713, MCU module 714, mounting groove 715, split type slow
The terms such as device 72 are rushed, but it does not exclude the possibility of using other terms.The use of these items is only for more easily retouch
State and explain essence of the invention；Being construed as any additional limitation is disagreed with spirit of that invention.
Claims (10)
1. a kind of lift car buffer unit, including the elevator pit body (7) with inner cavity, in the elevator pit body (7)
Vertical direction sliding is equipped with lift car (71), is equipped with and is located at immediately below lift car (71) in elevator pit body (7) bottom
Split type buffer (72), which is characterized in that the split type buffer (72) includes being horizontally set on elevator pit body (7)
The buffer base (1) of bottom is equipped with by gliding movement targeting structure (2) on the buffer base (1) several by polyurethane
Material is made and arc-shaped arc sliding block (3), the circumferentially distributed setting of the arc sliding block (3) and the arc
Sliding shoe (3) inner circumferential surrounds the circular cone channel (4) to be formed in up big and down small cone tube shape, the arc sliding block
(3) it is connected between outer circumferential and buffer base (1) by horizontal buffer structure (5), is plugged in the circular cone channel (4)
There are the buffering rotary table (6) for being made and be in up big and down small circular cone stage body shape of polyurethane material, described buffering rotary table (6) upper end
Center has arc groove (61), is equipped with air bag corresponding with arc groove (61) in lift car (71) bottom
(711), and the air bag (711) is connected with inflatable structure (712), and velocity response mould is equipped in lift car (71)
Block (713), and the velocity response module (713) is connected with MCU module (714), and the MCU module (714) and fill
Depressed structure (712) is connected.
2. lift car buffer unit according to claim 1, which is characterized in that circular cone channel (4) week is inwardly
Side has conical friction face (41), and the conical friction face (41) and the outer circumferential for buffering rotary table (6) are in contact, described
Buffering rotary table (6) upper end extends to above circular cone channel (4).
3. lift car buffer unit according to claim 1 or 2, which is characterized in that the buffer base (1) is in
Discoid, the quantity of the arc sliding block (3) is four and the arc sliding block (3) is with buffer base (1)
Center is circumferentially uniformly distributed for the center of circle to be surrounded to form ring structure, and the circular cone channel (4) is formed in ring structure.
4. lift car buffer unit according to claim 3, which is characterized in that gliding movement targeting structure (2) packet
Four circumferential sliding grooves (21) being arranged on buffer base (1) are included, the sliding groove (21) is with buffer base (1)
Center be that the center of circle is circumferentially uniformly distributed setting, and described sliding groove (21) one end extends to buffer base (1) center, separately
One end extends to buffer base (1) outer circumferential, and arc sliding block (3) bottom is equipped with and sliding groove (21) are corresponding
Sliding block (22), and the mutually sliding of the sliding block (22) and sliding groove (21) is connected.
5. lift car buffer unit according to claim 4, which is characterized in that horizontal buffer structure (5) packet
Several settings are included in buffer base (1) outer circumferential and in the buffing pad (51) of vertical direction setting, the buffing pad
(51) respectively with arc sliding block (3) on the outside of correspond, arc sliding block (3) outer circumferential be equipped with extend outwardly and
In horizontally disposed buffer bar (52), the buffing pad (51) is equipped with mounting hole (53) corresponding with buffer bar (52),
The buffer bar (52) is through in mounting hole (53) and being equipped on buffer bar (52) can be such that arc sliding block (3) retains towards
The elastic buffer member (54) of buffer base (1) center movement trend.
6. lift car buffer unit according to claim 5, which is characterized in that elastic buffer member (54) packet
The buffer spring (55) being set on buffer bar (52) is included, and described buffer spring (55) one end is resisted against buffing pad (51)
On, the other end acts on the outside of arc sliding block (3).
7. lift car buffer unit according to claim 5, which is characterized in that the buffer bar (52) and sliding groove
(21) mounting hole (53) arranged in parallel and described is equipped with linear axis between all jumper bar (52) outer circumferentials of easing up inwardly
Hold (56).
8. lift car buffer unit according to claim 1, which is characterized in that the buffering rotary table (6) it is vertical
Direction height size is not more than the vertical direction height size of arc sliding block (3), the diameter of described buffering rotary table (6) upper end
Ratio between size and the diameter of lower end is (3-5): 1.
9. lift car buffer unit according to claim 2, which is characterized in that plated on the conical friction face (41)
Equipped with damping layer (42), and the outer circumferential of the buffering rotary table (6) and damping layer (42) are in contact.
10. lift car buffer unit according to claim 1, which is characterized in that described lift car (71) bottom
Center has mounting groove (715), and the inflatable structure (712) setting is in mounting groove (715), and the air bag
(711) one end extends in mounting groove (715) and is connected with inflatable structure (712), and the other end extends under lift car (71)
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811287903.7A CN109179146B (en) | 2018-10-31 | 2018-10-31 | Elevator car buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811287903.7A CN109179146B (en) | 2018-10-31 | 2018-10-31 | Elevator car buffer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109179146A true CN109179146A (en) | 2019-01-11 |
| CN109179146B CN109179146B (en) | 2024-04-16 |
Family
ID=64941055
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811287903.7A Active CN109179146B (en) | 2018-10-31 | 2018-10-31 | Elevator car buffer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109179146B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630559A (en) * | 2019-01-30 | 2019-04-16 | 安徽宝信信息科技有限公司 | Vapour changes the transmission shaft changeover panel of the Driving Test practice vehicle of electricity |
| CN110587133A (en) * | 2019-09-12 | 2019-12-20 | 杭州海容激光技术有限公司 | Full-automatic laser spot welding machine |
| CN111195448A (en) * | 2020-01-17 | 2020-05-26 | 海积(北京)科技有限公司 | Flue gas catalytic desulfurization solid-liquid separation system |
| CN111620214A (en) * | 2020-06-23 | 2020-09-04 | 法雷奥电梯(广东)有限公司 | A villa elevator with airbag |
| CN112320530A (en) * | 2020-12-15 | 2021-02-05 | 博仕通电梯有限公司 | Elevator pit safety maintenance device |
| CN112707263A (en) * | 2021-01-27 | 2021-04-27 | 陕西省特种设备检验检测研究院 | Bottom impact-proof system of elevator |
| CN112707264A (en) * | 2021-01-27 | 2021-04-27 | 陕西省特种设备检验检测研究院 | Elevator accidental impact damping method based on gas-liquid mixing |
| CN113526296A (en) * | 2021-06-28 | 2021-10-22 | 福建省特种设备检验研究院 | Elevator buffer based on metal rubber |
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|---|---|---|---|---|
| CN109630559A (en) * | 2019-01-30 | 2019-04-16 | 安徽宝信信息科技有限公司 | Vapour changes the transmission shaft changeover panel of the Driving Test practice vehicle of electricity |
| CN109630559B (en) * | 2019-01-30 | 2024-04-30 | 安徽宝信信息科技有限公司 | Transmission shaft conversion plate for driving test practice vehicles converted from automobiles to electric vehicles |
| CN110587133A (en) * | 2019-09-12 | 2019-12-20 | 杭州海容激光技术有限公司 | Full-automatic laser spot welding machine |
| CN110587133B (en) * | 2019-09-12 | 2021-10-26 | 杭州海容激光技术有限公司 | Full-automatic laser spot welding machine |
| CN111195448A (en) * | 2020-01-17 | 2020-05-26 | 海积(北京)科技有限公司 | Flue gas catalytic desulfurization solid-liquid separation system |
| CN111620214A (en) * | 2020-06-23 | 2020-09-04 | 法雷奥电梯(广东)有限公司 | A villa elevator with airbag |
| CN112320530A (en) * | 2020-12-15 | 2021-02-05 | 博仕通电梯有限公司 | Elevator pit safety maintenance device |
| CN112707263A (en) * | 2021-01-27 | 2021-04-27 | 陕西省特种设备检验检测研究院 | Bottom impact-proof system of elevator |
| CN112707264A (en) * | 2021-01-27 | 2021-04-27 | 陕西省特种设备检验检测研究院 | Elevator accidental impact damping method based on gas-liquid mixing |
| CN112707264B (en) * | 2021-01-27 | 2022-04-05 | 陕西省特种设备检验检测研究院 | Elevator accidental impact damping method based on gas-liquid mixing |
| CN113526296A (en) * | 2021-06-28 | 2021-10-22 | 福建省特种设备检验研究院 | Elevator buffer based on metal rubber |
| CN113526296B (en) * | 2021-06-28 | 2022-09-06 | 福建省特种设备检验研究院 | Elevator buffer based on metal rubber |
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