CN206232266U - Buffer of elevator - Google Patents
Buffer of elevator Download PDFInfo
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- CN206232266U CN206232266U CN201621028975.6U CN201621028975U CN206232266U CN 206232266 U CN206232266 U CN 206232266U CN 201621028975 U CN201621028975 U CN 201621028975U CN 206232266 U CN206232266 U CN 206232266U
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- working cylinder
- piston bar
- piston
- buffer
- inwall
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Abstract
The utility model is related to elevator safety technical field, there is provided a kind of buffer of elevator.The first working cylinder is set in the inside of buffer body, the bottom of First piston bar is plugged in the first working cylinder and is slidably connected with the inwall of the first working cylinder, and the inside of First piston bar has the second working cylinder；Second piston bar is contained in the first working cylinder, and the bottom of second piston bar is connected with the bottom of the first working cylinder, and the top of second piston bar is inserted in the second working cylinder and is slidingly sealed mating connection with the inwall of the second working cylinder.Because the variation coefficient of the resistance to compression pression of gas is more much greater than the coefficient of elasticity of spring, therefore need not be that First piston bar sets long stroke, the effect of braking can also be reached.Further, since being to be slidingly sealed to contact between the top of second piston bar and the second working cylinder, so the cushioned resistance after Repeated Compression of the gas in the second working cylinder will not also decay, buffering effect can be ensured well.
Description
Technical field
The utility model is related to elevator safety technical field, is specifically related to a kind of buffer of elevator.
Background technology
Buffer of elevator is the safety component of elevator end, and major function is to be carried out when elevator cage or counterweight drop
The part of buffering.Current hydraulic buffer of elevator can normally be resetted after buffer compression is mainly completed using compression spring.
New design by air and can compress generation pressure substitution spring and complete normal reset.
Buffer of elevator is that the speed for coordinating elevator is used, and speed more high compression stroke is accomplished by mesh more long, relative
It is preceding that to use compression spring more long to be accomplished by as compression spring when resetting, but when length compression spring long is manufactured,
There is following technical problem：
1. production cost is improved, while fraction defective is also high.
2. for skyscraper, when elevator speed is faster, buffer stroke is accomplished by more long, precompressed length during installation
It is accomplished by difficulty more long, to exist during installation.
3. compression spring has the performance of the existing picture influence product of torsional deformation in compression.
4. excessive compression travel easily makes compression spring produce plastic deformation, influences the original performance of compression spring.
Utility model content
(1) technical problem to be solved
It is to be solved in the utility model be existing use spring buffer of elevator cost and fraction defective it is high, installation difficulty,
The poor technical problem of shock-absorbing capacity.
(2) technical scheme
In order to solve the above technical problems, the utility model provides a kind of buffer of elevator, the buffer of elevator includes slow
Rush device body, First piston bar and second piston bar；The inside of the buffer body has the first working cylinder, the buffering
The first opening for leading to first working cylinder is offered at the top of device body；The bottom of the First piston bar is by described first
Opening is plugged in first working cylinder and is slidably connected with the inwall of first working cylinder, the first piston
The bottom that the inside of bar has the second working cylinder, the First piston bar has the second opening；The second piston bar is contained in
In first working cylinder, the bottom of the second piston bar is connected with the bottom of first working cylinder, the second piston
The top of bar is inserted in second working cylinder and is slidingly sealed with the inwall of second working cylinder by the described second opening
It is connected.
Preferably, the diameter of the second piston bar from top to bottom gradually increases；In the bottom of the First piston bar and
The first piston valve of ring-type is externally provided with positioned at the second piston bar, the first piston valve has elasticity, for moving down
Elastic compression is between the inwall of first working cylinder and the outer wall of the second piston bar in dynamic process.
Preferably, limited step is provided with the top of the inwall of first working cylinder, the limited step is used for described
The upward motion of first piston valve forms spacing.
Preferably, there is hydraulic oil in first working cylinder.
Preferably, the volume in second working cylinder with hydraulic oil, the hydraulic oil is less than second working cylinder
Volume.
Preferably, the top of the First piston bar has the inflation inlet to be opened/closed for leading to second working cylinder.
Preferably, the top of the second piston bar is provided with second piston valve, and the second piston bar passes through described second
Piston valve is slidingly sealed mating connection with the inwall of second working cylinder.
Preferably, the outer wall of the second piston valve has star sealing ring.
Preferably, the outer wall of the second piston valve has a lattice Lay sealing ring, and the lattice Lay sealing ring is used for described the
The outer wall of two piston valves separates with the inwall of second working cylinder.
Preferably, the top of the second piston bar is flexible is provided with the 3rd piston rod, the connection of the second piston valve
On the top of the 3rd piston rod.
(3) beneficial effect
A kind of buffer of elevator that the utility model is provided, the first working cylinder is set by the inside of buffer body,
The bottom of First piston bar is plugged in the first working cylinder and is slidably connected with the inwall of the first working cylinder, first piston
The inside of bar has the second working cylinder；Second piston bar is contained in the first working cylinder, the bottom of second piston bar and the first work
Make the bottom connection of cylinder, the top of second piston bar is inserted in the second working cylinder and is slided with the inwall of the second working cylinder close
Envelope is connected.Because the variation coefficient of the resistance to compression pression of gas is more much greater than the coefficient of elasticity of spring, therefore need not be the
One piston rod sets long stroke, can also reach the effect of braking.Further, since the top of second piston bar and the second work
Make to be slidingly sealed contact between cylinder, so the cushioned resistance after Repeated Compression of the gas in the second working cylinder will not also decline
Subtract, buffering effect can be ensured well.
Brief description of the drawings
Fig. 1 is the schematic diagram of the buffer of elevator under the extended configuration of the utility model embodiment；
Fig. 2 is the schematic diagram of the buffer of elevator under the compressive state of the utility model embodiment；
Fig. 3 is the schematic diagram of the second piston with the cooperation of the second working cylinder of the utility model embodiment.
Reference：
1st, buffer body；11st, the first working cylinder；2nd, First piston bar；21st, the second working cylinder；22nd, valve；23rd, seal
Lid；3rd, second piston bar；31st, the 3rd piston rod；4th, second piston valve；5th, first piston valve；51st, star sealing ring；52nd, Ge Lai
Sealing ring；6th, hydraulic oil.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to scope of the present utility model.
, it is necessary to illustrate in description of the present utility model, unless otherwise clearly defined and limited, term " connection "
Etc. that should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or it is integrally connected；Can be direct
It is connected, it is also possible to be indirectly connected to by intermediary.For the ordinary skill in the art, can be understood with concrete condition
Concrete meaning of the above-mentioned term in the utility model.
With reference to shown in Fig. 1 and Fig. 2, a kind of reset buffer that the utility model embodiment is provided, including buffer body
1st, First piston bar 2 and second piston bar 3；Buffer body 1 is cylinder-like structure, and bottom is fixed with ground, and inside has
First working cylinder 11, the top of buffer body 1 offers the first opening for leading to the first working cylinder 11；First piston bar 2
Bottom is plugged in the first working cylinder 11 by the first opening and is slidably connected with the inwall of the first working cylinder 11, thus, the
One piston rod 2 constitutes a piston mechanism with buffer body 1；The inside of First piston bar 2 has the second working cylinder 21, first
The bottom of piston rod 2 has the second opening；Second piston bar 3 is contained in the first working cylinder 11, the work of second piston bar 3 and first
Make the concentric setting of cylinder 11, the bottom of second piston bar 3 is connected with the bottom of the first working cylinder 11, the top of second piston bar 3
It is inserted in the second working cylinder 21 by the second opening and is slidingly sealed mating connection with the inwall of the second working cylinder 21, thus, the
Two piston rods 3 and the second working cylinder 21 constitute a piston mechanism.
The gas for compressing buffering can be set in first working cylinder 11 and the second working cylinder 21, when elevator box or match somebody with somebody
Fall when on this buffer down again, the top of First piston bar 2 is subject to downward pressure, then along in the first working cylinder 11
Wall is moved down；At the same time, the top of second piston bar 3 is then slided towards the top of the second working cylinder 21, and by with the
Being slidingly sealed contact and compressing the gas inside the second working cylinder 21 between the inwall of two working cylinders 21；In second working cylinder 21
Gas increasing expansive force is produced during compression, the expansive force continues to move downward shape to second piston bar 3
Into stop.Thus just form the effect of buffering to the tenesmus of elevator box or counterweight, and buffering resistance be also it is ascending,
Passenger will not be damaged；After being finished to tenesmus damping of shocks, treat that elevator reparing is normal, First piston bar 2 just can be
Resetted under the thrust of compressed air.
The variation coefficient for being additionally, since the resistance to compression pression of gas is more much greater than the coefficient of elasticity of spring, therefore need not be
First piston bar 2 sets long stroke, can also reach the effect of braking.Further, since the top of second piston bar 3 and the
To be slidingly sealed contact between two working cylinders 21, thus the gas in the second working cylinder 21 cushioned resistance is not yet after Repeated Compression
Can decay, buffering effect can be ensured well.
In addition, the diameter of second piston bar 3 is from top to bottom preferably gradually increasing；And, at the bottom of First piston bar 2
Hold and the first piston valve 5 of ring-type is additionally provided with outside the second piston bar 3, first piston valve 5 has elasticity, for downward
Elastic compression is between the inwall of the first working cylinder 11 and the outer wall of second piston bar 3 in mobile process, so as to be lived to first
The downward mobile formation damping force of stopper rod 2, and because the diameter of second piston bar 3 from top to bottom gradually increases, so the damping
Power is also gradually to increase；The damping force is superimposed with the resistance that above-mentioned air expands, to the casing for dropping or with reformation more
Good buffering effect.
Preferably there is hydraulic oil 6 in first working cylinder 11, the amount of the hydraulic oil 6 can both be filled with the first working cylinder 11,
It can also be the bottom for existing only in working cylinder.If the hydraulic oil 6 exists only in the bottom of the first working cylinder 11, whenever first
When piston valve 5 is moved downward to the bottom of the first working cylinder 11, can all be immersed in hydraulic oil 6, and be resetted in first piston valve 5
And during moving down again, between the inwall of the working cylinder 11 of first piston valve 5 and first and first piston valve 5 and second
Lubrication is formed between the outer wall of piston rod 3, prevents from living first piston valve 5, the inwall of the first working cylinder 11 and second
The outer wall of stopper rod 3 causes abrasion.If the hydraulic oil 6 is full of or is nearly full of the first working cylinder 11, first piston valve 5 soaks all the time
In hydraulic oil 6, on the basis of the purpose that can avoid abrasion, due to the flow resistance of the flow resistance compared with air of hydraulic oil 6
Want greatly, therefore when the compression degree of first piston valve 5 is bigger, i.e. the inwall and second of the working cylinder 11 of first piston valve 5 and first
When contact between the outer wall of piston rod 3 is tighter, hydraulic oil 6 is more difficult to by the working cylinder 11 of first piston valve 5 and first and
Gap between two piston rods 3, corresponding damping force is also bigger, and buffering effect is also just more preferably.
In conjunction with shown in Fig. 3, the top of second piston bar 3 is preferably provided with second piston valve 4, and second piston bar 3 is by the
The inwall of two piston valves 4 and the second working cylinder 21 is slidingly sealed mating connection, and there is the outer wall of second piston valve 4 star to seal
Circle 51 and Ge Lai sealing rings 52, star sealing ring 51 makes to have more preferably between the inwall of the working cylinder 21 of second piston valve 4 and second
Sealing effectiveness；Lattice Lay sealing ring 52 is used to separate the outer wall of second piston valve 4 with the inwall of the second working cylinder 21, in case right
The inwall of the working cylinder 21 of second piston valve 4 and second causes abrasion.
Preferably also there is hydraulic oil 6, the appearance of the volume less than the second working cylinder 21 of the hydraulic oil 6 in second working cylinder 21
Product, i.e. hydraulic oil 6 and whole second working cylinder 21 of underfill in the second working cylinder 21, more preferably hydraulic oil 6 is only accounted for
With the very small part volume of the second working cylinder 21, and the top near zone of second piston valve 4 is lodged in all the time, so can not only
Enough inwalls that the second working cylinder 21 is lubricated during reciprocal telescopic, reduce friction and lift-off seal effect, and can also be
Because load-carrying it is excessive caused by tenesmus accident, if only setting air in the second working cylinder 21, excessive load-carrying acceleration shock is very
May result in air transition compression and make the seal failure between the working cylinder 21 of second piston valve 4 and second, and then cause to delay
The rigid shock that washout is imitated and brought, thus seriously threatens the life security of passenger.But set few in the second working cylinder 21
After the hydraulic oil 6 of amount, even if the gas transition compression in the second working cylinder 21, generates very big expansive force, but due to the
With second piston valve 4 to the part for contacting it is hydraulic oil 6 in two working cylinders 21, under equal pressure condition, hydraulic oil 6 is compared
It is all more difficult by seal clearance in compressed gas, it is hereby ensured that this buffer not buffer loss effect.
The top of First piston bar 2 preferably has the inflation inlet to be opened/closed for leading to the second working cylinder 21, and this is to be opened/closed
Inflation inlet is located on valve 22 by the valve 22 and lid for being opened in the top of second piston bar 3 and is fastened on the top of second piston bar 3
Capping 23 constitute；By the inflation inlet, expansion higher can be made it have to compressed air is filled with the second working cylinder 21
Resistance, enhances buffering effect.Further, limited step, limiting stand are preferably provided with the top of the inwall of the first working cylinder 11
Rank forms spacing for the motion upward to first piston valve 5, even if possess compressed air in so the second working cylinder 21, and should
Compressed air forms upward thrust to second piston bar 3 all the time, but due to the presence of limited step, at this buffer
When idle state, even if the second working cylinder 21 in second piston bar 3 is interior filled with pressure-air, can also by limited step
Second piston bar 3 is spacing in setting startup position, so as to both enhance buffering effect, second piston bar 3 need not be increased again
Shift motion.Being additionally, since in the second working cylinder can be filled with the compressed gas of larger pressure, so after buffering terminates, without
Wait elevator reparing good, elevator can also reset to the specified location of limited step under the effect of the pressure of the gases at high pressure
Place such that it is able to save passenger faster.
The top of second piston bar 3 is flexible is preferably provided with the 3rd piston rod 31, and second piston valve 4 is connected to the 3rd work
The top of stopper rod 31, thus increased first-level buffer again, improve overall buffering effect, and variation in structure is not accounted for again
Use additional space.
The above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model know-why is not departed from, some improvement and replacement can also be made, these change
Enter and replace also to should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of buffer of elevator, it is characterised in that including buffer body, First piston bar and second piston bar；It is described
The inside of buffer body has the first working cylinder, is offered at the top of the buffer body and leads to first working cylinder
First opening；The bottom of the First piston bar is plugged in first working cylinder and with described the by the described first opening
The inwall sliding connection of one working cylinder, the inside of the First piston bar has the second working cylinder, the First piston bar
Bottom have second opening；The second piston bar is contained in first working cylinder, the bottom of the second piston bar
Bottom with first working cylinder is connected, and the top of the second piston bar is inserted in second work by the described second opening
Make in cylinder and be slidingly sealed mating connection with the inwall of second working cylinder.
2. buffer of elevator according to claim 1, it is characterised in that the diameter of the second piston bar from top to bottom by
It is cumulative big；The first piston valve of ring-type is externally provided with the bottom of the First piston bar and positioned at the second piston bar, it is described
First piston valve have elasticity, for the elastic compression during moving down first working cylinder inwall with it is described
Between the outer wall of second piston bar.
3. buffer of elevator according to claim 2, it is characterised in that be provided with the top of the inwall of first working cylinder
Limited step, the limited step forms spacing for the motion upward to the first piston valve.
4. buffer of elevator according to claim 1, it is characterised in that there is hydraulic oil in first working cylinder.
5. buffer of elevator according to claim 1, it is characterised in that there is hydraulic oil, institute in second working cylinder
State the volume of the volume less than second working cylinder of hydraulic oil.
6. buffer of elevator according to claim 1, it is characterised in that the top of the First piston bar has leads to institute
State the inflation inlet to be opened/closed of the second working cylinder.
7. buffer of elevator according to claim 1, it is characterised in that the top of the second piston bar is provided with the second work
Plug valve, the second piston bar is slidingly sealed mating connection by the second piston valve with the inwall of second working cylinder.
8. buffer of elevator according to claim 7, it is characterised in that the outer wall of the second piston valve has star close
Seal.
9. buffer of elevator according to claim 7, it is characterised in that the outer wall of the second piston valve has Ge Laimi
Seal, the lattice Lay sealing ring is used to separate the outer wall of the second piston valve with the inwall of second working cylinder.
10. buffer of elevator according to claim 7, it is characterised in that the top of the second piston bar is flexible to be set
There are the 3rd piston rod, the top for being connected to the 3rd piston rod of the second piston valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621028975.6U CN206232266U (en) | 2016-08-31 | 2016-08-31 | Buffer of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621028975.6U CN206232266U (en) | 2016-08-31 | 2016-08-31 | Buffer of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206232266U true CN206232266U (en) | 2017-06-09 |
Family
ID=58986320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621028975.6U Active CN206232266U (en) | 2016-08-31 | 2016-08-31 | Buffer of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206232266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106185532A (en) * | 2016-08-31 | 2016-12-07 | 欧姆尼机电科技（昆山）有限公司 | Buffer of elevator |
-
2016
- 2016-08-31 CN CN201621028975.6U patent/CN206232266U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106185532A (en) * | 2016-08-31 | 2016-12-07 | 欧姆尼机电科技（昆山）有限公司 | Buffer of elevator |
| CN106185532B (en) * | 2016-08-31 | 2019-03-01 | 欧姆尼机电科技（昆山）有限公司 | Buffer of elevator |
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