CN1117691C - Elevator - Google Patents
Elevator Download PDFInfo
- Publication number
- CN1117691C CN1117691C CN99814070A CN99814070A CN1117691C CN 1117691 C CN1117691 C CN 1117691C CN 99814070 A CN99814070 A CN 99814070A CN 99814070 A CN99814070 A CN 99814070A CN 1117691 C CN1117691 C CN 1117691C
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- CN
- China
- Prior art keywords
- elevator
- piston
- hydraulic
- cabin
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/04—Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically
Abstract
There is described an elevator construction comprising a cabin and a piston and cylinder arrangement attached thereto, the cabin being adapted to move within an elevator shaft. The piston of the arrangement is attached in the uppermost region of the shaft depends from its attachment which supports the entire arrangement and also the cabin, which is attached to the outer cylinder of the arrangement in the lowermost region thereof. The piston and cylinder arrangement may be telescopic in that a plurality of concentric pistons and cylinders may be disposed concentrically of one another, and respective hydraulic cavities thereof may be valved together so that the extension and contraction of the entire arrangement is smooth when hydraulic fluid is introduced thereinto or allowed to escape therefrom. The arrangement is such that the introduction of hydraulic fluid thereinto causes relative axial movement of respective and adjacent piston and cylinder components and an overall contraction of the arrangement. The cabin thus rises within the elevator shaft. The invention provides much greater control over elevator movement, and precludes the design emphasis on strut buckling, necessary in prior art designs in which the arrangement was mounted beneath the cabin and thus supported same in compression.
Description
Technical field
The present invention relates to a kind of improved elevator, particularly relate to a kind of be exclusively used in indoor environment or be no more than in the length of elevator shaft use under the environment of several floors and bearing capacity is limited in several people's elevator, this class elevator is mostly by hydraulic-driven, and the present invention relates generally to a kind of improved hydraulic-driven elevator.
Background technology
Though following description is almost completely about indoor elevator, obviously, elevator of the present invention also can be used for the occasion beyond the commercial environment.In addition, the field of application of parts of the present invention also can enlarge, so that elevator can be used for other environment.
At present, the driving of most of indoor elevator realizes by hydraulic-driven.Elevator cabin is fixed on the top free end of a plunger, and piston is arranged in a hydraulic actuating cylinder, and hydraulic fluid (being fluid under most of situation) imports in the hydraulic actuating cylinder under pressure.Hydraulic actuating cylinder is securely fixed in the bottom that makes the elevator shaft that elevator cabin moves up and down therein.One screw pump also can be installed in the elevator shaft, but under more situation, for the transmission that reduces elevator installation site noise it is installed on elevator shaft position far away, and is connected by the plumbing system of the tape entry end of hydraulic actuating cylinder bottom usually.
The compressibi1ity of work fluid needs a kind of valve/discharge equipment that can control the rate of flow of fluid that flows into cylinder body.Must be enough to make elevator when the passenger can obviously increase near certain certain floor turnover elevator cabin or reduce height when the compressibi1ity of fluid in the hydraulic actuating cylinder is usually big, this point is very important.This valve gear or other suitable fluid compression compensating device are used to usually prevent that the passenger from unnecessarily getting a fright in elevator.Because the compression property of fluid depends on ambient temperature, this problem becomes more serious.Under many situations, need to adopt complicated electronics package to control a compensating device that is connected with the pump motor, so that the flow rate of fluid that control enters hydraulic actuating cylinder and comes out from hydraulic actuating cylinder, thereby guarantee elevator cabin to exceed certain datum-plane position and be not subjected to elevator cabin and bear the unexpected increase of load or the influence of minimizing, but also guarantee that acceleration and the deceleration of elevator cabin near a certain floor the time carry out gradually.
In the elevator of the above-mentioned type, the fluid screw pump need have a big machine room at a distance at the distance elevating motor-pumped well with combining usually of fluid compression compensating device, and the machine room area size is often brought the problem of building and/or position.When the diameter of wherein hydraulic actuating cylinder and piston reaches 30 centimetres or when above, these problems are just more serious.Therefore, in order to realize the driving of piston, require the quantity of fluid to increase, and finally cause the also corresponding thereupon increase of elevator cabin.This fuel tank that just requires screw pump therefrom to pump must have enough capacity, could guarantee the required degree that reaches of travelling of elevator cabin.Correspondingly, screw pump usually is submerged in the fuel tank and by fluid and surrounds, owing to must stop fluid to enter oil pump beyond entrance area, the design problem of oil pump therefore just occurred.
Here it is pointed out that owing to be necessary for each promoting and demoting mechanism and produce a specific hydraulic actuating cylinder, so just there is an intrinsic unfavorable factor in the design that elevator cabin drives; And each hydraulic actuating cylinder must have a specific screw pump and a fluid compensating device, and the latter is usually located in the enough big fuel tank of capacity, to guarantee effective running of elevator.So the design of elevator is quite complicated with installing.
The disadvantage that fluid is used as working fluid is that the comb. of oil has fire hazard, and is especially true in commercial environment.Therefore, all there are strict regulations in Britain and Europe, and the occasion that requires screw pump and fuel tank are installed must meet standard.These requirements must increase the total cost of equipment.
Another weak point of elevator structure described above is that elevator cabin is supported by a plunger under the static(al) engineering specifications.So, not only must consider the possibility of compression fault at design phase, and must consider the possibility that plunger is fastened.In practice, can not cause the plunger fault for guaranteeing these two kinds of mechanism, the manufacturing of hydraulic actuating cylinder, piston and plunger will be considered a lot of safety factors, and its result always causes the increase of diameter.The whole cost of elevator not only increases (such as requiring further calculating) at design phase, and needs more material owing to make hydraulic actuating cylinder, and making also can increase at the fabrication phase cost.Big hydraulic actuating cylinder correspondingly requires a big fuel tank, and from then on fluid is pumped in the fuel tank in hydraulic actuating cylinder and the bigger oil pump, keeps same speed when elevator cabin is risen.
In addition, fact proved that high-capacity hydraulic actuating cylinder has reduced the efficient of fluid compressibility compensating device, in some cases,, also must increase the weight of elevator cabin for guaranteeing the compensating device true(-)running.
The operating needs of many elevators uses the telescopic piston device that includes a hydraulic actuating cylinder, and such one telescopic plunger can stretch at many predetermined positions.The expense of these equipment is quite expensive, and as long as increase some diameters a little, will increase their cost greatly.
Summary of the invention
An object of the present invention is to provide a kind of elevator, fully to overcome above-mentioned defective.
According to the present invention, a kind of elevator is provided, it comprises a piston and hydraulic pressure cylinder assembly and an elevator cabin that moves in the elevator shaft of building.This piston is provided with a plunger, this plunger can be telescopic, it is characterized in that, this plunger is fixed on the place, a fixed position of elevator shaft upper area, described piston and hydraulic pressure cylinder assembly hang from this position, hydraulic actuating cylinder is fixed in the elevator cabin, causes that hydraulic actuating cylinder and elevator cabin rise with respect to plunger thereby fluid flows into hydraulic actuating cylinder.
Advantageously, fluid is by a liquid inlet input hydraulic cylinder in the plunger.
Said structure has special advantage with respect to existing elevator structure.At first, because plunger only transmits tension force now, fastened and produced the tendency of fault with regard to having got rid of.Therefore, when making piston and hydraulic pressure cylinder assembly, can not influence under the safe situation, use parts than minor diameter.In addition, when plunger is in tension, can more effectively bear the slight shifted laterally of elevator cabin; And this shifted laterally was the problem that the designer worries very much in the past, because when plunger is in compressive state, it has increased the possibility that fastens fault.
Secondly, owing to reduced size, make the alerting ability of piston and hydraulic pressure cylinder assembly increase, thereby can produce on a large scale, and make piston and hydraulic pressure cylinder assembly can adapt to various operating conditionss, for example charge capacity and desired retractility.This alerting ability can't be obtained up to now.Structure of the present invention allows piston and hydraulic pressure cylinder assembly to revise a little in the elevator shaft that just can be used for different depth.
Description of drawings
A specific embodiment of the present invention will be illustrated by example with reference to accompanying drawing below.
Fig. 1 is the telescopic piston constructed in accordance and the cutaway view of hydraulic pressure cylinder assembly.
Fig. 2 is the transparent view of elevator constructed in accordance.
Fig. 3 A, 3B show the cutaway view that hydraulic actuating cylinder among Fig. 1 is in different extending parts.
Fig. 4 shows the loop scheme drawing of explanation fluid delivery system, and a pump of the present invention and a scalable hydraulic actuating cylinder are used among the figure, to drive elevator cabin.
The specific embodiment
At first referring to Fig. 1, it shows a telescopic piston and hydraulic pressure cylinder assembly 2, this piston and hydraulic pressure cylinder assembly 2 are provided with an outer liquid cylinder pressure 4 and an intermediate liquid cylinder pressure 6, intermediate liquid cylinder pressure 6 has a piston head 8 and a cylinder body 10, is provided with a piston head 12 that is installed on the internal piston 14 in the cylinder body 10.One auxiliary device 16 is arranged on an end of internal piston 14, and screw, pin or other like (not shown) can pass auxiliary device 16, piston and hydraulic pressure cylinder assembly 2 are fastened on the correct position in the elevator shaft.Another auxiliary device 17 is positioned on the pedestal 44 of outer liquid cylinder pressure, so that the outer liquid cylinder pressure is fixed in the elevator cabin.According to the present invention, above-mentioned position is positioned at the upper area of elevator shaft, and piston and hydraulic pressure cylinder assembly 2 hang from this position, as shown in Figure 2.
Liquid inlet 18,20 and 22 is separately positioned on outer liquid cylinder pressure 4, cylinder body 10 and the internal piston 14, and fluid stretches and shrinks by these integral body that realize described assembly that enter the mouth.In one embodiment, most of fluid imports chamber 24 by inlet 22, and this chamber 24 is formed by the wall of plunger 14.Chamber 24 links to each other with valve member 26 and fluid passage 28, and fluid passage 28 links to each other chamber 24 with another chamber 30, and the latter is formed by the wall of intermediate liquid cylinder pressure 6.One lip ring 32 contacts with the inwall of intermediate liquid cylinder pressure, bleeds in the following chamber 34 to prevent fluid in the chamber 30, and chamber 34 is surrounded by the bottom of wall, piston head 8 and the valve member 26 of intermediate liquid cylinder pressure.
As can be seen from the above description, the type of drive of piston of the present invention and hydraulic pressure cylinder assembly 2 is different fully with the type of drive of traditional piston and hydraulic pressure cylinder assembly.In Fig. 2, hydraulic pressure is applied to the upper surface of piston head 8 and 12 and respectively on the annular surface 46 and 48 around intermediate liquid cylinder pressure 6 and plunger 14, and further is applied on the annular surface 50 and 52 on the upper area that is located at intermediate liquid cylinder pressure 6 and outer liquid cylinder pressure 4.And in traditional piston and hydraulic pressure cylinder assembly, fluid imports the base of hydraulic actuating cylinder usually, and is exerted pressure in the whole bottom surface of the piston that is positioned at hydraulic actuating cylinder, thereby drives.
Therefore, when fluid imports chamber 24, enter chamber 30 by fluid passage 28 immediately.Valve 26 is operated, to guarantee that fluid flows into chamber 30 by fluid passage 36 from chamber 24 with stable flow velocity and flows into chamber 38 then, thereby make the stretching, extension of piston and hydraulic pressure cylinder assembly and shrink held stationary, and in stretching, extension and contraction process, intermediate liquid cylinder pressure 6 and outer liquid cylinder pressure 4 move suitable distance, and be steadily mobile to guarantee.In addition, because valve main stem 27 links to each other with piston 8, when whole assembly all shrank, valve 26 provided fluid for hydraulic actuating cylinder.
What deserves to be mentioned is that according to the present invention, plunger 14 is fixed, and intermediate liquid cylinder pressure 6 and outer liquid cylinder pressure 4 can relatively move.Therefore, (and chamber 38 in the chamber 30 and 34, because chamber 38 communicates at 36 places, position with 34) the increase of flow can cause between the surface 46 and 50 respectively and the increase of distance between the surface 48 and 52, thereby reduced the whole length of piston and hydraulic pressure cylinder assembly.The contraction situation of piston and hydraulic pressure cylinder assembly is shown in Fig. 3 A and 3B.
Should also be noted that the contraction of hydraulic actuating cylinder is undertaken by the mode that waits displacement when the inlet 28 of fluid by interconnection enters chamber 24 and chamber 30 and then hydraulic actuating cylinder is shunk.
Referring now to Fig. 2,, its mode by scheme drawing is strengthened the understanding of the present invention.Piston and hydraulic pressure cylinder assembly 60 are positioned at crossbeam 62 belows, and plunger 64 is fixed on the crossbeam 62 by suitable device (not shown).Piston and hydraulic pressure cylinder assembly 60 preferably adopt the assembly of type shown in Figure 1.Plunger 64 has a piston head (not shown), and this piston head is arranged in intermediate liquid cylinder pressure 66, and intermediate liquid cylinder pressure 66 is provided with a piston head, and it is arranged in outer liquid cylinder pressure 68.Hydraulic fluid imports plunger 64 by liquid inlet 70.
The logical suitable devices of a connecting element 72, one elevator cabin 74 are installed in the outer liquid cylinder pressure are fixed on the connecting element 72, elevator cabin 74 can be in elevator shaft vertical shifting.The front portion 76 of elevator shaft is equipped with moving door 78, and the passenger can enter or walk out elevator cabin 74 by this door, and 74 of elevator cabin are in being provided with the moving door (not shown) in the face of above-mentioned anterior 76 part.
When fluid was pumped to or pass through other suitable device importing plunger 64, intermediate liquid cylinder pressure 66 and outer liquid cylinder pressure 68 rose together, thereby the whole length of piston and hydraulic pressure cylinder assembly 60 is reduced as mentioned above.This reduces promptly to cause that the interior elevator cabin 74 of elevator shaft is correspondingly with respect to crossbeam 62 risings.
The hydraulic-driven that it is pointed out that piston described herein and hydraulic pressure cylinder assembly will be got well compared with legacy equipment because the active component of hydraulic action is annular surface as described in Figure 1, not as the piston head plane of legacy equipment so big.Therefore, according to the present invention, owing to can obtain more huge hydraulic pressure (machinery) advantage, so hydraulic actuating cylinder promotes and the load-carrying capacity of decline elevator cabin is improved.
At last referring to Fig. 4, it shows a fluid delivery system 100 that includes fluid conveying device 102, our patent No. of the type of this device and this is that the type of describing in detail in the application of GB 9826455.9 is identical, contain compressible fluid 104 in this fluid conveying device 102, to assist to extrude hydraulic fluid 106 wherein.This hydraulic fluid 106 is by disconnecting valve 108 and/or the alternative valve 110 that promptly falls, and the latter can use lever 112 manual operationss.Fluid by a pressure compensation immobile liquid flow control valve 114, enters a scalable hydraulic actuating cylinder 116 then afterwards, and this hydraulic actuating cylinder has been done detailed introduction in our patent GB 9826452.6.
Claims (7)
1. elevator, it comprises a piston and hydraulic pressure cylinder assembly and an elevator cabin that moves in elevator construction, this piston is provided with a plunger, this plunger can be telescopic, it is characterized in that this plunger is fixed on the fixed position of elevator shaft upper area, piston and hydraulic pressure cylinder assembly hang from this position, this hydraulic actuating cylinder is fixed in the elevator cabin, thereby fluid flow into and causes in the hydraulic actuating cylinder that hydraulic actuating cylinder and elevator cabin rise with respect to plunger.
2. elevator according to claim 1 is characterized in that, described fluid imports hydraulic actuating cylinder by the liquid inlet on the plunger.
3. elevator according to claim 1 is characterized in that, thereby fluid enters piston and hydraulic pressure cylinder assembly causes its length to reduce.
4. elevator according to claim 3 is characterized in that hydraulic fluid is introduced in piston and the hydraulic pressure cylinder assembly, and applies hydraulic pressure in the annular compartment between the wall that is limited to piston and hydraulic actuating cylinder at least in part.
5. elevator according to claim 4, it is characterized in that, this chamber is further limited by pressure surface at its two ends, one of them pressure surface is associated with piston, another pressure surface is associated with hydraulic actuating cylinder, thereby makes the fluid that enters chamber cause moving to axial of hydraulic actuating cylinder and piston.
6. according to the described elevator of aforementioned arbitrary claim, it is characterized in that this piston and hydraulic pressure cylinder assembly comprise second and/or the more hydraulic actuating cylinder and the piston of arranged concentric mutually, operate with telescopically.
7. method that elevator cabin is moved in elevator shaft, it may further comprise the steps: a piston and hydraulic pressure cylinder assembly are installed in the elevator cabin, and the fixed position of described assembly from elevator shaft hangs and is fixed on the lower end of elevator cabin; Described piston of hydraulic-driven and hydraulic pressure cylinder assembly make the hydraulic fluid that enters in this assembly will cause that this assembly shrinks, and cause elevator cabin to be risen in elevator shaft.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9826452.6 | 1998-12-03 | ||
| GBGB9826452.6A GB9826452D0 (en) | 1998-12-03 | 1998-12-03 | Elevator |
| GBGB9907749.7A GB9907749D0 (en) | 1999-04-06 | 1999-04-06 | Elevator |
| GB9907749.7 | 1999-04-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1329572A CN1329572A (en) | 2002-01-02 |
| CN1117691C true CN1117691C (en) | 2003-08-13 |
Family
ID=26314772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99814070A Expired - Fee Related CN1117691C (en) | 1998-12-03 | 1999-12-03 | Elevator |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1135321A1 (en) |
| JP (1) | JP2002531351A (en) |
| CN (1) | CN1117691C (en) |
| AU (1) | AU1575200A (en) |
| WO (1) | WO2000032508A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979388A (en) * | 2014-05-30 | 2014-08-13 | 马健勇 | Room-free pit-free barrier-free elevator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5771086B2 (en) * | 2011-07-20 | 2015-08-26 | パナソニック ホームエレベーター株式会社 | Hydraulic jack |
| ES2437181B2 (en) * | 2012-07-03 | 2015-04-17 | José Anibal PAZ UZ | HYDRAULIC EQUIPMENT FOR ELEVATION AND LEVELING OF ELEVATOR PLATFORMS. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262777A (en) * | 1979-08-16 | 1981-04-21 | Christopher Gordon W | Hydraulic elevator |
| FR2584694A1 (en) * | 1985-07-09 | 1987-01-16 | Thyssen Aufzuege Gmbh | Hydraulic lift |
| DE4118134C1 (en) * | 1991-06-03 | 1992-10-08 | Hydraulik-Liftsysteme Planung Und Wartung Gmbh, 7520 Bruchsal, De | Lift with hydraulic oil drive - provides cabin with top and bottom pressure chambers receiving or releasing compressed oil |
-
1999
- 1999-12-03 JP JP2000585159A patent/JP2002531351A/en active Pending
- 1999-12-03 CN CN99814070A patent/CN1117691C/en not_active Expired - Fee Related
- 1999-12-03 EP EP99958377A patent/EP1135321A1/en not_active Withdrawn
- 1999-12-03 WO PCT/GB1999/004071 patent/WO2000032508A1/en not_active Application Discontinuation
- 1999-12-03 AU AU15752/00A patent/AU1575200A/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262777A (en) * | 1979-08-16 | 1981-04-21 | Christopher Gordon W | Hydraulic elevator |
| FR2584694A1 (en) * | 1985-07-09 | 1987-01-16 | Thyssen Aufzuege Gmbh | Hydraulic lift |
| DE4118134C1 (en) * | 1991-06-03 | 1992-10-08 | Hydraulik-Liftsysteme Planung Und Wartung Gmbh, 7520 Bruchsal, De | Lift with hydraulic oil drive - provides cabin with top and bottom pressure chambers receiving or releasing compressed oil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979388A (en) * | 2014-05-30 | 2014-08-13 | 马健勇 | Room-free pit-free barrier-free elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| AU1575200A (en) | 2000-06-19 |
| EP1135321A1 (en) | 2001-09-26 |
| JP2002531351A (en) | 2002-09-24 |
| CN1329572A (en) | 2002-01-02 |
| WO2000032508A1 (en) | 2000-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |