CN108190683B - A kind of elevator multi-stage buffer - Google Patents
A kind of elevator multi-stage buffer Download PDFInfo
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- CN108190683B CN108190683B CN201711315585.6A CN201711315585A CN108190683B CN 108190683 B CN108190683 B CN 108190683B CN 201711315585 A CN201711315585 A CN 201711315585A CN 108190683 B CN108190683 B CN 108190683B
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- cylinder seat
- seat
- plunger
- buffer
- master cylinder
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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
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Abstract
The invention discloses a kind of elevator multi-stage buffers, it is related to the buffer unit technical field of lift car, including bottom plate, bottom plate upper surface is provided with first-level buffer component, including master cylinder seat, master cylinder seat bottom end offers multiple oil outlets, slides vertically in master cylinder seat top and is provided with main plunger, one end of main plunger towards master cylinder seat offers restriction；Level 2 buffering component, including multiple secondary cylinder seats, secondary cylinder seat bottom end offer oil inlet, slide vertically in secondary cylinder seat top and be provided with time plunger；Transition components, the conversion seat including being connected to oil outlet and oil inlet, are staggeredly equipped with check valve and direct current channel in conversion seat.When carriage is fallen, first-level buffer component and level 2 buffering component successively play buffer function.Multi-buffer improves whole buffer capacity, while also more steady to the support of carriage, and the height of present invention entirety is low, and movement travel is short, easy for installation, and link good buffer effect, to the more adaptable of well pit.
Description
Technical field
The present invention relates to the buffer unit technical fields of lift car, more specifically, it relates to which a kind of elevator is multistage
Buffer.
Background technique
In operation, due to safety tongs failure, traction race frictional force is insufficient, brake sticking brake power is insufficient, traction machine for elevator
The reasons such as there was a mechanical failure, control system failure, carriage can surmount terminal stop bottom, and fall entrance with higher speed
Well pit causes elevator impaired.It thus needs to install buffer in hoistway melt pit, and requires its solid and reliable, carry
Impact capacity is strong, and bottom is directly hit to avoid lift car or is rushed to summit, and protects passenger or transports the safety of cargo and lift facility.
In view of the above-mentioned problems, patent announcement number is the Chinese patent of CN102649524A, a kind of elevator is proposed with hydraulic
Buffer, comprising: pedestal hydraulic cylinder is vertically arranged with pin rod in its bottom surface；Intermediate plunger is provided in its bottom surface and passes through for pin rod
Intert into opening；Upper stage plunger is provided with the size throttle orifice smaller than being open in its bottom surface；And the shell of hollow form,
With airport, and the shell is mounted on the upper side of upper stage plunger.In the position of the bottom side by shell of upper stage plunger,
It is provided with the intercommunicating pore for being connected to upper stage plunger with shell, is fixed with inside of the housing and the inside of the shell is divided
Spacing board.
In above-mentioned patent installation process, need to select service performance to close according to the load-bearing capacity and hoistway length of elevator used
Suitable buffer, since actual hoist pit actual depth limits the height of buffer, is led when using high-performance buffer
It causes the buffer in above-mentioned patent difficult to install and effect cannot play completely, if well pit is dug deeply, project amount is not only
Greatly, and since pit majority is the stability for being connected with building foundation, and then may influencing whether building basis, thus
Buffer cannot play buffer function in the case where well pit is shallow completely.
Summary of the invention
Aiming at the problem that effect of depth high-performance buffer of well pit in the prior art uses, the present invention provides one kind
Elevator multi-stage buffer has the advantages that height is low, stroke is short, multi-buffer, automatically resets.
To achieve the above object, the present invention provides the following technical scheme that
A kind of elevator multi-stage buffer, the bottom plate including being placed in well pit, the bottom plate upper surface are provided with
First-level buffer component, the first-level buffer component include being vertically placed to the bottom plate upper surface and inside is marked with work
The master cylinder seat of oil, one end that the master cylinder seats against the nearly bottom plate offer multiple oil outlets, vertical in master cylinder seat top
Sliding is provided with the main plunger for including cavity, and one end of the main plunger towards the master cylinder seat offers restriction；
Level 2 buffering component, the level 2 buffering component include multiple secondary cylinder seats for being vertically placed to the bottom plate upper surface,
The secondary cylinder seat offers oil inlet close to one end of the bottom plate, slides vertically in the secondary cylinder seat top and is provided with time column
Plug；
Transition components, the transition components include being connected to the oil outlet and the oil inlet and adjusting the work oil stream
To conversion seat, be staggeredly equipped with multiple check valves and multiple direct current channels in the conversion seat.
Through the above technical solutions, carriage contacts in advance with main plunger, and main plunger is pressed into master cylinder when lift car falls
In seat, working oil enters the cavity of main plunger by restriction, and first-level buffer component plays first order buffer function；It is excessive at this time
Pressure force working oil to enter the interior of secondary cylinder seat by check valve simultaneously, carriage again with secondary plunger contact, pressed by secondary plunger
Enter in time cylinder seat, level 2 buffering component plays second level buffer function.It is cooperated by multiple secondary plungers and main plunger, it is multistage
For buffering so that whole buffer capacity is stronger while more steady to the support of carriage, buffering is more stable, protects passenger or fortune
The height of the safety of delivery object and lift facility, present invention entirety is low, and movement travel is short, easy for installation, and link good buffer effect,
To the more adaptable of well pit.
Further, the throttle valve of multiple parallel connections corresponding with the check valve is provided on the conversion seat.
Through the above technical solutions, the uninterrupted of the adjustable conversion seat internal check valve of throttle valve, different by limitation
The flow of check valve, allows level 2 buffering component to form multi-buffer, and multiple secondary plungers successively play buffering to carriage and make
With.
Further, the main plunger is provided with gland, the master cylinder seat outer wall setting far from one end of the master cylinder seat
There is support ring, is coaxially arranged with reset spring with the main plunger between the gland and the support ring.
Through the above technical solutions, adjusting check valve after carriage resets and making direct current channel connection oil outlet and oil inlet
Mouthful, the air pressure in the intracorporal air pressure of secondary cylinder and main plunger cooperates with reset spring simultaneously, so that buffer Rapid reset.
Further, the oil outlet is equal with the oil inlet quantity, and the secondary cylinder seat annular is arranged in the master cylinder
Seat side, the conversion seat is in a ring.
Through the above technical solutions, secondary cylinder seat annular is arranged so that secondary plunger is more steady to the support of cage bottom, turn
It is more convenient to change seat rotation adjusting.
Further, the conversion seat outer wall offers tooth socket, and driving motor, the driving electricity are provided on the bottom plate
It is arranged with the fluted disc being drivingly connected with the tooth socket in the drive shaft of machine, is provided with outside hoistway and controls connection with the driving motor
Controller.
Through the above technical solutions, artificially transmitting a signal to controller, driving motor starts and conversion seat is driven to rotate, into
And facilitate the reset of buffer.
Further, the outer wall of the conversion seat is extended to the direction far from the conversion seat axis multiple gears
Plate is provided with the check valve and a direct current channel between the baffle of the secondary cylinder seat two sides.
Through the above technical solutions, baffle can limit the rotational angle of conversion seat, check valve or direct current channel are avoided
It misplaces with oil outlet or oil inlet.
Further, the secondary plunger is provided with cover board far from the side of the secondary cylinder seat, and the cover board is far from described time
The side of plunger is provided with buffering time pad, and the gland is provided with the main pad of buffering far from the side of the main plunger.
Through the above technical solutions, the main jig frequency pad that eases up that pads of buffering plays the role of buffer protection buffer.
Further, flexible main ring, the secondary cylinder seat direction is arranged towards one end of the main plunger in the master cylinder seat
Flexible secondary ring is arranged in one end of the secondary plunger.
Through the above technical solutions, elastic main ring prevents the shock of gland Yu master cylinder seat, elastic secondary ring prevent cover board with it is secondary
The shock of cylinder seat is played the role of protecting buffer.
Further, the variable stick for being directed toward the restriction is vertically arranged in the master cylinder seat.
Through the above technical solutions, variable stick reduces the area of restriction, due to the reduction of area, working oil will shape
At vortex, in particle mutually hit, rub, convert kinetic energy into heat and dissipate, to consume the energy of carriage, make
Carriage is rallentando stopped.
Further, the oil inlet and the oil outlet opening are embedded with sealing ring.
Through the above technical solutions, improving oil inlet and oil outlet and conversion seat junction leakproofness, oil leak is prevented.
Compared with prior art, beneficial effects of the present invention are as follows:
(1) when elevator car bottom drops, multi-buffer is played the role of by first-level buffer component and level 2 buffering component, is led to
The effect that transition components make first-level buffer component and level 2 buffering component play linkage buffering is crossed, multi-buffer makes the present invention
Buffer capacity it is stronger；
(2) in buffering course, main plunger and time plunger are successively supported the surrounding of cage bottom, and support is more flat
Surely, the shaking of elevator is reduced, buffering is also more steady；
(3) height of buffer is low and compression direction on movement travel it is short, be adaptable to the well pit of different depth,
Play buffering effect completely in short stroke, while can also be according to the load-bearing capacity and hoistway length of elevator used, buffer capacity
Power size can also be adjusted.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of elevator multi-stage buffer；
Fig. 2 is the portion A partial enlarged view in Fig. 1；
Fig. 3 is a kind of top view of elevator multi-stage buffer；
Fig. 4 is the cross-sectional view of the line B-B along Fig. 3；
Fig. 5 is the portion C partial enlarged view in Fig. 4.
Appended drawing reference: 1, bottom plate；2, master cylinder seat；211, working oil；3, oil outlet；4, main plunger；411, cavity；5, it throttles
Mouthful；6, secondary cylinder seat；7, oil inlet；8, secondary plunger；9, conversion seat；10, check valve；11, direct current channel；12, throttle valve；13, it presses
Lid；14, support ring；15, reset spring；16, tooth socket；17, driving motor；18, fluted disc；19, controller；20, baffle；21, it covers
Plate；22, buffering time pad；23, main pad is buffered；24, elastic main ring；25, elastic secondary ring；26, variable stick；27, sealing ring.
Specific embodiment
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, below with reference to examples and drawings pair
The present invention is described in further detail, but embodiments of the present invention are not limited only to this.
As shown in Figure 1, a kind of elevator multi-stage buffer, the bottom plate 1 including being placed in well pit, bottom plate 1 is square,
1 upper surface of bottom plate is provided with first-level buffer component, level 2 buffering component and transition components.
First-level buffer component, as shown in Figure 1, first-level buffer component includes being fixed at 1 upper surface center of bottom plate vertically
Master cylinder seat 2, as shown in Figure 4 and Figure 5,2 top of master cylinder seat are interior in being provided with inside hatch frame and its along the sliding of its axis direction
Main plunger 4 containing cavity 411, main plunger 4 are infused inside master cylinder seat 2 towards restriction 5 is offered at the center of 2 one end of master cylinder seat
Have a working oil 211, peripheral wall of the master cylinder seat 2 close to one end of bottom plate 1 offers multiple oil outlets 3, oil outlet 3 be preferably four and
Rotational symmetry is arranged on the peripheral wall of master cylinder seat 2.Working oil 211 enters main plunger by restriction 5 after main plunger 4 is under pressure
In 4 cavity 411, main plunger 4 plays main buffer function to lift car.As shown in figure 4, solid vertically in master cylinder seat 2
Surely there is variable stick 26, the cross section of variable stick 26 from high in the end becomes larger, and restriction 5, variable are directed toward in the tip of variable stick 26
The maximum cross section of stick 26 is less than the cross-sectional area of restriction 5.The through-flow face of reality that restriction 5 can be reduced by variable stick 26
Product, due to the reduction of area, will form vortex in 211 flow process of working oil, in particle mutually hit, rub, will move
Heat can be converted into dissipate, to consume the energy of lift car, carriage is made rallentando to stop.
As depicted in figs. 1 and 2, the one end of main plunger 4 far from master cylinder seat 2 is coaxially fixed with gland 13, and gland 13 is in disk
Shape, 2 wall coaxial of master cylinder seat are fixed with support ring 14, and support ring 14 is located at the top of oil outlet 3, gland 13 and support ring 14 it
Between with main plunger 4 be coaxially fixed with reset spring 15.Air pressure cooperation in reset spring 15 and main plunger 4, so that main plunger 4
It resets quicker.Gland 13 is fixed with the main pad 23 of buffering far from the side of main plunger 4.It buffers main pad 23 and plays buffer protection
The effect of buffer.Master cylinder seat 2 coaxially fixes flexible main ring 24 towards one end of main plunger 4 and master cylinder seat 2.Elastic main ring 24
The shock of gland 13 and master cylinder seat 2 also plays the effect of protection buffer.
Level 2 buffering component, as shown in Figure 1, level 2 buffering component includes multiple fixing 1 upper surface of bottom plate vertically
Secondary cylinder seat 6, secondary cylinder seat 6 is round angularly annular spread in the side of secondary cylinder seat 6 with master cylinder seat 2, as shown in Figure 4 and Figure 5, secondary
6 top of cylinder seat slide in hatch frame and in secondary cylinder seat 6 along its axis direction vertically is provided with secondary plunger 8, and secondary cylinder seat 6 is the bottom of close to
One end of plate 1 offers oil inlet 7.Secondary plunger 8 can enter in the cavity 411 of main plunger 4 after being under pressure, and pass through level 2 buffering
Component has arrived buffer function again.Secondary 6 quantity of cylinder seat is identical as 3 quantity of oil outlet, and secondary cylinder seat 6 is preferably four.Secondary cylinder
6 annular of seat is arranged so that secondary plunger 8 is more steady to the support of cage bottom.
As shown in Fig. 2, secondary plunger 8 is fixed with cover board 21 far from the side of time cylinder seat 6, cover board 21 is in the form of annular discs, cover board 21
Side far from time plunger 8 is provided with buffering time pad 22.Play the role of buffer protection buffer by buffering time pad 22, prevents
Only buffer is bad by damage.Secondary cylinder seat 6 coaxially fixes flexible secondary ring 25 towards one end of secondary plunger 8 and time cylinder seat 6.Pass through bullet
Property secondary ring 25 prevent the shock of cover board 21 and time cylinder seat 6, also play the effect of protection buffer.
Transition components, as shown in Figure 1 and Figure 5, transition components include connection oil outlet 3 and oil inlet 7 and adjust working oil
The conversion seats 9 of 211 flow directions, in a ring, and oil inlet 7 and 3 opening of oil outlet are coaxially embedded with sealing ring 27 to conversion seat 9.
Oil inlet 7 and oil outlet 3 and 9 junction leakproofness of conversion seat are improved by sealing ring 27, prevents oil leak.In conversion seat 9 staggeredly
It is provided with multiple check valves 10 and multiple direct current channels 11.Conversion seat 9 can be connected to multiple groups oil inlet 7 by check valve 10 simultaneously
With oil outlet 3, check valve 10 is provided with cracking pressure, and after the pressure of working oil 211 is greater than cracking pressure, check valve 10 is opened
It opens, working oil 211 enters time cylinder seat 6 from master cylinder seat 2 and cannot reversely flow.After conversion seat 9 rotates, moreover it is possible to pass through direct current channel
11 are connected to multiple groups oil inlet 7 and oil outlet 3 again simultaneously.Make the work between master cylinder seat 2 and secondary cylinder seat 6 by conversion seat 9
Oil 211 can flow, and the regulating power of buffer is stronger.It is fixed with the throttle valve 12 in parallel with check valve 10 on conversion seat 9, saves
Stream valve 12 can the cracking pressure to each check valve 10 can individually be adjusted.It is controlled by throttle valve 12 single in conversion seat 9
To the uninterrupted of valve 10, the level 2 buffering component of script is allowed to form multi-buffer, multiple secondary plungers 8 are successively to carriage
Play buffer function.
As shown in Figure 1 and Figure 4, the outer wall of conversion seat 9 towards pedestal one end offers tooth socket 16, passes through bracket on bottom plate 1
It is vertically fixed driving motor 17, coaxial sleeve is equipped with fluted disc 18 in the drive shaft of driving motor 17, and fluted disc 18 is in tooth socket 16
In same plane, by gear engaged transmission between fluted disc 18 and tooth socket 16, elevator shaft is also fixedly installed with and driving motor
The controller 19 of 17 control connections.By artificially transmitting a signal to controller 19, driving motor 17 starts and drives 9 turns of conversion seat
It is dynamic, and then facilitate the reset of buffer.The outer wall of conversion seat 9 is fixed with multiple baffles 20 to the direction far from 9 axis of conversion seat,
Two baffles 20 have a check valve 10 and a direct current channel 11 between one group and one group of baffle 20, between multiple groups baffle 20
Interval angles are equal.The rotational angle that conversion seat 9 can be limited by baffle 20, avoid check valve 10 or direct current channel 11 with
Oil outlet 3 or oil inlet 7 misplace.
It the working principle of the invention and has the beneficial effect that:
When the present invention installs, oil outlet 3 is connected to by the check valve 10 of conversion seat 9 with oil inlet 7, while adjusting throttle valve 12
So that 12 pairs of 10 working flows of limitation check valve of throttle valve and adjusting size is different.After present invention installation, in working oil 211
Under effect, distance is maximum between main plunger 4 and master cylinder seat 2, and distance is maximum between secondary plunger 8 and secondary cylinder seat 6.
When lift car falls, cage bottom contacts in advance with main plunger 4, and main plunger 4 is under pressure and is pressed into master cylinder
In seat 2, working oil 211 enters the cavity 411 of main plunger 4 by restriction 5, also protrudes into cavity 411 with variations per hour stick 26, leads to
The practical flow area of restriction 5 can be reduced by crossing variable stick 26, so that will form vortex in 211 flow process of working oil, in
Particle mutually hit, rub, convert kinetic energy into heat and dissipate, to consume the impact energy of carriage.Carriage simultaneously
Bottom is contacted with secondary plunger 8 again, and secondary plunger 8 is under pressure and is pressed into time cylinder seat 6, plays the role of level 2 buffering.Work as work
After oily 211 oil pressure are greater than the cracking pressure of the check valve 10 limited by throttle valve 12, working oil 211 passes through conversion seat 9 from master
Cylinder seat 2 sequentially enters in time cylinder seat 6, again serves to buffer function.
After lift car resets, operator controls driving motor 17 by controller 19 and rotates, and driving motor 17 drives
Conversion seat 9 rotates, and oil outlet 3 is connected to by the direct current channel 11 of conversion seat 9 with oil inlet 7, the air pressure in secondary cylinder body and Master cylinder body
Under the action of and the external force of reset spring 15 under, the present invention can reduce the trouble of manual adjustment with Rapid reset.
The present invention plays the role of multi-buffer by first-level buffer component and level 2 buffering component, while passing through conversion group
Part plays the effect of linkage buffering, and multi-buffer makes whole buffer capacity stronger.Main plunger 4 and time plunger 8 are successively right
Cage bottom is supported, and the support of cage bottom surrounding is more steady, equally also makes buffering more stable, protects passenger or fortune
The safety of delivery object and lift facility.The height of present invention entirety is low, while the movement travel on direction that is pressurized is short, installation side
Just, to the more adaptable of well pit, in addition, according to the load-bearing capacity of elevator used and hoistway length, buffering of the invention
Capacity of water can also be adjusted.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of elevator multi-stage buffer, the bottom plate (1) including being placed in well pit, bottom plate (1) upper surface are provided with
First-level buffer component, the first-level buffer component include being vertically placed to the bottom plate (1) upper surface and inside is marked with working oil
(211) master cylinder seat (2), the master cylinder seat (2) offer multiple oil outlets (3), the master close to the one end of the bottom plate (1)
Sliding is provided with the main plunger (4) for including cavity (411) vertically in cylinder seat (2) top, and the main plunger (4) is towards the master cylinder
One end of seat (2) offers restriction (5)；
It is characterized in that, bottom plate (1) upper surface is additionally provided with: level 2 buffering component, the level 2 buffering component include more
A secondary cylinder seat (6) for being vertically placed to the bottom plate (1) upper surface, the secondary cylinder seat (6) open up close to the one end of the bottom plate (1)
Have oil inlet (7), sliding is provided with time plunger (8) vertically in secondary cylinder seat (6) top；
Transition components, the transition components include being connected to the oil outlet (3) and the oil inlet (7) and adjusting the working oil
(211) conversion seat (9) flowed to, the conversion seat (9) is interior to be staggeredly equipped with multiple check valves (10) and multiple direct current channels
(11).
2. elevator multi-stage buffer according to claim 1, which is characterized in that be provided on the conversion seat (9) more
The throttle valve (12) of a parallel connection corresponding with the check valve (10).
3. elevator multi-stage buffer according to claim 2, which is characterized in that the main plunger (4) is far from the master
One end of cylinder seat (2) is provided with gland (13), and master cylinder seat (2) outer wall is provided with support ring (14), the gland (13) with
Reset spring (15) are coaxially arranged with the main plunger (4) between the support ring (14).
4. elevator multi-stage buffer according to claim 3, which is characterized in that the oil outlet (3) and the oil inlet
Mouth (7) quantity is equal, and secondary cylinder seat (6) annular is arranged in master cylinder seat (2) side, and the conversion seat (9) is in a ring.
5. elevator multi-stage buffer according to claim 4, which is characterized in that conversion seat (9) outer wall offers
Tooth socket (16) is provided with driving motor (17) on the bottom plate (1), is arranged in the drive shaft of the driving motor (17) and institute
The fluted disc (18) of tooth socket (16) drive connection is stated, the controller with the driving motor (17) control connection is provided with outside hoistway
(19).
6. elevator multi-stage buffer according to claim 5, which is characterized in that the outer wall of the conversion seat (9) is to remote
Direction from the conversion seat (9) axis, which is extended, to be had multiple baffles (20), the baffles (20) of secondary cylinder seat (6) two sides it
Between be provided with the check valve (10) and a direct current channel (11).
7. elevator multi-stage buffer according to claim 3, which is characterized in that the secondary plunger (8) is far from described time
The side of cylinder seat (6) is provided with cover board (21), and the cover board (21) is provided with buffering time pad far from the side of the secondary plunger (8)
(22), the gland (13) is provided with the main pad (23) of buffering far from the side of the main plunger (4).
8. elevator multi-stage buffer according to claim 7, which is characterized in that the master cylinder seat (2) is towards the master
Flexible main ring (24) is arranged in one end of plunger (4), and one end of the secondary cylinder seat (6) towards the secondary plunger (8) is provided with bullet
Property secondary ring (25).
9. elevator multi-stage buffer according to claim 2, which is characterized in that be vertically arranged in the master cylinder seat (2)
There is the variable stick (26) for being directed toward the restriction (5).
10. elevator multi-stage buffer according to claim 2, which is characterized in that the oil inlet (7) and oil outlet
(3) opening is embedded with sealing ring (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315585.6A CN108190683B (en) | 2017-12-09 | 2017-12-09 | A kind of elevator multi-stage buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711315585.6A CN108190683B (en) | 2017-12-09 | 2017-12-09 | A kind of elevator multi-stage buffer |
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| Publication Number | Publication Date |
|---|---|
| CN108190683A CN108190683A (en) | 2018-06-22 |
| CN108190683B true CN108190683B (en) | 2019-07-19 |
Family
ID=62574181
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711315585.6A Active CN108190683B (en) | 2017-12-09 | 2017-12-09 | A kind of elevator multi-stage buffer |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368439B (en) * | 2018-08-29 | 2020-10-23 | 安徽迅立达电梯有限公司 | Novel hydraulic elevator |
| EP4151579A1 (en) * | 2021-09-21 | 2023-03-22 | KONE Corporation | Variable stroke buffer for buffering a car or a counterweight of an elevator |
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| JPH04217577A (en) * | 1990-12-20 | 1992-08-07 | Mitsubishi Electric Corp | Oil-immersed buffer for elevator |
| JP2005098424A (en) * | 2003-09-25 | 2005-04-14 | Mitsubishi Electric Corp | Oil-filled type damping device |
| CN1922091A (en) * | 2004-09-21 | 2007-02-28 | 三菱电机株式会社 | Cushioning device for elevator |
| CN101932521A (en) * | 2008-04-30 | 2010-12-29 | 三菱电机株式会社 | Shock absorber for elevator |
| CN102649524A (en) * | 2011-02-24 | 2012-08-29 | 三菱电机株式会社 | Hydraulic buffer used for elevator |
| CN103381985A (en) * | 2013-06-26 | 2013-11-06 | 杨伦 | Device for buffering dropping of elevator |
| CN203998508U (en) * | 2014-07-07 | 2014-12-10 | 天津市恒利电梯技术开发有限公司 | A kind of used during elevator falling protective device |
| CN206156514U (en) * | 2016-09-23 | 2017-05-10 | 南京雄起电梯有限公司 | Elevator buffer base |
| CN206969942U (en) * | 2017-07-04 | 2018-02-06 | 杭州顺达伯耐特电梯有限公司 | Underlying main frame forced action type elevator |
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2017
- 2017-12-09 CN CN201711315585.6A patent/CN108190683B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04217577A (en) * | 1990-12-20 | 1992-08-07 | Mitsubishi Electric Corp | Oil-immersed buffer for elevator |
| JP2005098424A (en) * | 2003-09-25 | 2005-04-14 | Mitsubishi Electric Corp | Oil-filled type damping device |
| CN1922091A (en) * | 2004-09-21 | 2007-02-28 | 三菱电机株式会社 | Cushioning device for elevator |
| CN101932521A (en) * | 2008-04-30 | 2010-12-29 | 三菱电机株式会社 | Shock absorber for elevator |
| CN102649524A (en) * | 2011-02-24 | 2012-08-29 | 三菱电机株式会社 | Hydraulic buffer used for elevator |
| CN103381985A (en) * | 2013-06-26 | 2013-11-06 | 杨伦 | Device for buffering dropping of elevator |
| CN203998508U (en) * | 2014-07-07 | 2014-12-10 | 天津市恒利电梯技术开发有限公司 | A kind of used during elevator falling protective device |
| CN206156514U (en) * | 2016-09-23 | 2017-05-10 | 南京雄起电梯有限公司 | Elevator buffer base |
| CN206969942U (en) * | 2017-07-04 | 2018-02-06 | 杭州顺达伯耐特电梯有限公司 | Underlying main frame forced action type elevator |
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| Publication number | Publication date |
|---|---|
| CN108190683A (en) | 2018-06-22 |
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