CN105110118A - Lift buffer - Google Patents
Lift buffer Download PDFInfo
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- CN105110118A CN105110118A CN201510559452.8A CN201510559452A CN105110118A CN 105110118 A CN105110118 A CN 105110118A CN 201510559452 A CN201510559452 A CN 201510559452A CN 105110118 A CN105110118 A CN 105110118A
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- retainer
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Abstract
The invention discloses a lift buffer which comprises a pedestal cylinder, a plurality of plunger pistons and a plurality of force applying bodies. The pedestal cylinder has a base portion and a cylinder portion which is arranged on the base portion. The cylinder portion preserves working oil. The plurality of plunger pistons are successively connected in a slidable manner upward from the cylinder portion. Each plunger piston is configured to shift up and down with respect to the cylinder portion while being able to bear the resistance of the working oil. The plurality of force applying bodies are arranged side by side on the base portion, and apply force to the plunger pistons in an upward leaving direction from the base portion.
Description
The Chinese invention patent application of the application to be application number be No.200880125999.5
The divisional application of (applying date: on 04 30th, 2008, denomination of invention: buffer of elevator)
Technical field
The present invention relates to a kind of buffer of elevator, it is for relaxing the impact to car, counterweight.
Background technology
In the past, in order to realize the shortening of height dimension, propose there is following hydraulic damper for elevator: pedestal cylinder Multi-stage plunger being entered be filled with working oil, described Multi-stage plunger is formed as diameter and reduces successively and be configured to stretch at above-below direction.Be connected between plunger at different levels at water bumper by the coil spring making the position of plunger restore after compressing.The position of plunger at different levels makes the plunger of higher level and subordinate restore (with reference to patent documentation 1) to the direction displacement be separated from each other by utilizing helical spring application force.
Patent documentation 1: Japanese Unexamined Patent Publication 2004-324879 publication.
But, in above-mentioned existing hydraulic damper for elevator, coil spring is connected with between plunger at different levels, even when therefore upper stage plunger is incorporated in subordinate's plunger, energy disperser fully shrinks, upper stage plunger still will exceed to be protruded from subordinate's plunger necessarily, and its bulge quantity is suitable with the helical spring height between plunger at different levels.Therefore, in order to ensure the predetermined stroke of plunger at different levels, have to more than the extension of plunger at different levels to necessary length, thus, the height dimension of water bumper entirety when restoring is increased.
In addition, except being configured at the coil spring of most higher level, each coil spring not only supports the weight of upper stage plunger, but also supports the helical spring weight of top.Therefore, be configured at the coil spring of below, helical spring thickness, the number of turn are more, thus the height dimension of water bumper entirety increases further.
Summary of the invention
The present invention completes to solve above-mentioned problem just, its object is to obtain a kind of buffer of elevator that can realize the shortening of height dimension.
Buffer of elevator of the present invention comprises: pedestal cylinder, and it has base portion and is located at the cylinder part on above-mentioned base portion, in above-mentioned cylinder part, preserve working oil; Multiple plunger, they connect in the mode that can slide upward successively from above-mentioned cylinder part, and can be shifted at above-below direction respectively relative to above-mentioned cylinder part while the resistance bearing above-mentioned working oil; And multiple force body, they are configured on above-mentioned base portion side by side, and exert a force towards the direction left upward from above-mentioned base portion to each above-mentioned plunger respectively;
Wherein, above-mentioned base portion is provided with multiple retainer, the plurality of retainer limits the displacement of each above-mentioned plunger to the direction near above-mentioned base portion respectively, and above-mentioned retainer configures along above-mentioned force body; The height of each above-mentioned retainer is different according to different above-mentioned plungers.
Buffer of elevator of the present invention, comprising: pedestal cylinder, and it has base portion and is located at the cylinder part on above-mentioned base portion, in above-mentioned cylinder part, preserve working oil; Multiple plunger, they connect in the mode that can slide upward successively from above-mentioned cylinder part, and can be shifted at above-below direction respectively relative to above-mentioned cylinder part while the resistance bearing above-mentioned working oil; And multiple force body, they are configured on above-mentioned base portion side by side, and exert a force towards the direction left upward from above-mentioned base portion to each above-mentioned plunger respectively;
Wherein, above-mentioned base portion is provided with multiple retainer, the plurality of retainer limits the displacement of each above-mentioned plunger to the direction near above-mentioned base portion respectively; Above-mentioned retainer configures along above-mentioned force body; For limiting the height of the above-mentioned retainer of the displacement of the above-mentioned plunger of most subordinate, lower than the height of the above-mentioned retainer of the displacement of the above-mentioned plunger for limiting most higher level.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the buffer of elevator that embodiments of the present invention 1 are shown.
Fig. 2 is the cutaway view of the state after the buffer of elevator illustrated in Fig. 1 shrinks.
Fig. 3 is the cutaway view of the buffer of elevator that embodiments of the present invention 2 are shown.
Fig. 4 is the cutaway view of the state after the buffer of elevator illustrated in Fig. 3 shrinks.
Fig. 5 is the cutaway view of the buffer of elevator that embodiments of the present invention 3 are shown.
Fig. 6 is the cutaway view of the state after the buffer of elevator illustrated in Fig. 5 shrinks.
Detailed description of the invention
Below, with reference to accompanying drawing, the preferred embodiment of the present invention is described.
Embodiment 1
Fig. 1 is the cutaway view of the buffer of elevator that embodiments of the present invention 1 are shown.In addition, Fig. 2 is the cutaway view of the state after the buffer of elevator illustrated in Fig. 1 shrinks.In the drawings, energy disperser 1 is arranged at the pit part of hoistway.Therefore, when the lifting body (such as car, counterweight etc.) be elevated in hoistway is also declined further by orlop for a certain reason, lifting body and energy disperser 1 collide.Energy disperser 1, when the collision being subject to lifting body, absorbs the impact from lifting body, relaxes the impact to lifting body.
Energy disperser 1 has: the pedestal cylinder 2 being fixed on the pit part of hoistway; From multiple (being two in this example) plunger 3,4 that pedestal cylinder 2 connects successively; And to multiple (being two in this example) retracing spring (multiple force bodies) 5,6 that each plunger 3,4 exerts a force upward respectively.
Pedestal cylinder 2 has the base plate (base portion) 7 of on even keel configuration and is located at the cylinder part 8 of the tubular on base plate 7.The fluid control bar 9 protruded upward from base plate 7 is configured with in cylinder part 8.The horizontal section area of fluid control bar 9 is formed as reducing continuously from the bottom of fluid control bar 9 towards upper end.
Each plunger 3,4 is connected in the mode that can slide with the order of plunger 4 according to plunger 3 upward from cylinder part 8.Thus, each plunger 3,4 can be shifted at above-below direction respectively relative to pedestal cylinder 2.
In this example, the cartridge that the plunger 3 of most subordinate opens wide for upper and lower end parts, the plunger 4 of most higher level is the closed cartridge in upper end.In addition, reduce according to the order external diameter of the plunger 3 of cylinder part 8, most subordinate and the plunger 4 of most higher level.The plunger 4 of the plunger 3 of cylinder part 8, most subordinate and most higher level is by inserting the plunger 3 of most subordinate in cylinder part 8 and be interconnected in the plunger 3 that the plunger 4 of most higher level is inserted into most subordinate.
Energy disperser 1 stretches relative to the displacement of pedestal cylinder 2 along with each plunger 3,4.That is, energy disperser 1 extends (Fig. 1) by each plunger 3,4 to the direction displacement leaving base plate 7, and is shunk (Fig. 2) near the displacement of the direction of base plate 7 by each plunger 3,4.
The contact component 10 of the ring-type contacted with the outer peripheral face of the plunger 3 of most subordinate is provided with in the upper end inner peripheral portion of cylinder part 8.The plunger 3 of most subordinate slides at above-below direction relative to cylinder part 8 while contacting with contact component 10.
Being provided with in the bottom of the plunger 3 of most subordinate prevents plunger 3 from the anti-delinking part 3a that cylinder part 8 is deviate from.Anti-delinking part 3a is provided at the stage portion of the peripheral part of the plunger 3 of most subordinate.By the displacement that anti-delinking part 3a (leaves the direction of base plate 7) upward relative to the plunger 3 that the engaging of contact component 10 limits most subordinate.Thus, the plunger 3 of most subordinate is prevented to come off from cylinder part 8.
The contact component 11 of the ring-type contacted with the outer peripheral face of the plunger 4 of most higher level is provided with in the upper end inner peripheral portion of the plunger 3 of most subordinate.The plunger 4 of most higher level slides at above-below direction relative to the plunger 3 of most subordinate while contacting with contact component 11.
Being provided with in the bottom of the plunger 4 of most higher level prevents plunger 4 from the anti-delinking part 4a that plunger 3 is deviate from.Anti-delinking part 4a is provided at the stage portion of the peripheral part of the plunger 4 of most higher level.By the displacement that anti-delinking part 4a (leaves the direction of base plate 7) upward relative to the plunger 4 that the engaging of contact component 11 limits most higher level.Thus, the plunger 4 of most higher level is prevented to come off from the plunger 3 of most subordinate.
The damping hole (hole) 12 with predetermined internal diameter is provided with in the bottom of the plunger 4 of most higher level.In addition, in cylinder part 8 and each plunger 3,4, working oil is preserved.By at least any one displacement relative to cylinder part 8 in each plunger 3,4 (that is, flexible by energy disperser 1), working oil passes in and out via damping hole 12 relative to plunger 4 inside of most higher level.Each plunger 3,4 is shifted relative to cylinder part 8 while the resistance bearing the working oil passed through from damping hole 12.
As shown in Figure 2, by the displacement relative to pedestal cylinder 2 of the plunger 4 of most higher level, fluid control bar 9 can be inserted in damping hole 12.The insertion of fluid control bar 9 along with most higher level plunger 4 relative to pedestal cylinder 2 displacement and change.The resistance of working oil is controlled relative to the insertion change of damping hole 12 by making fluid control bar 9.In addition, the damper element 13 of the collision of bearing lifting body is provided with in the upper end of the plunger 4 of most higher level.
Each retracing spring 5,6 is configured in cylinder part 8.In addition, each retracing spring 5,6 is configured on base plate 7 side by side.In this example, each retracing spring 5,6 is coil spring, and retracing spring 6 is configured at the inner side of retracing spring 5.In addition, the coiling direction of each retracing spring 5,6 is opposite directions.By making the coiling direction of each retracing spring 5,6 be opposite sense, can prevent retracing spring 5,6 from overlapping each other.
Retracing spring 5 is compressed between the plunger 3 and base plate 7 of most subordinate, and retracing spring 6 is compressed between the plunger 4 and base plate 7 of most higher level.Thus, the plunger 3 of most subordinate is exerted a force towards the direction left upward from base plate 7 by retracing spring 5, and the plunger 4 of most higher level is exerted a force by towards the direction left upward from base plate 7 by retracing spring 6.That is, retracing spring 5 is the most subordinate retracing spring exerted a force upward to the plunger 3 of most subordinate, and retracing spring 6 is the most higher level's retracing spring exerted a force upward to the plunger 4 of most higher level.
Then, action is described.When usual, as shown in Figure 1, each plunger 3,4 is shifted respectively to top by means of the application force of each retracing spring 5,6, and energy disperser 1 keeps the state of extending.
When lifting body collides with energy disperser 1 because of certain reason, each plunger 3,4 is pressed down under the effect of the impact force be subject to from lifting body.Now, working oil flows in the plunger 4 of most higher level via damping hole 12, and each retracing spring 5,6 is compressed.Thus, each plunger 3,4, while the elastic reactance of the resistance and each retracing spring 5,6 that bear working oil, is depressed downwards.Thus, energy disperser 1 shrinks while absorbing the impact from lifting body, thus relaxes the impact to lifting body.
After energy disperser 1 shrinks, when lifting body leaves upward, working oil flows out in the plunger 4 of most higher level, and each plunger 3,4 is shifted respectively to top by means of the application force of each retracing spring 5,6 simultaneously.Thus, energy disperser 1 extends upward, and automatically restores to state time usual.
In such buffer of elevator 1, multiple retracing spring 5,6 is configured on base plate 7 side by side, described multiple retracing spring 5,6 exerts a force to the direction that the base plate 7 from pedestal cylinder 2 leaves upward to each plunger 3,4 respectively, therefore, it is possible to each retracing spring when making energy disperser 1 shrink completely 5,6 respective altitude datums are all common base plate 7.Thereby, it is possible under preventing the complete holosystolic situation of energy disperser 1 each plunger 3,4 bulge quantity upward because of sandwiched each retracing spring 5,6 and increase to more than necessity.Thus, the length of each plunger 3,4 can be shortened when ensure that the predetermined stroke of each plunger 3,4, the shortening of the height dimension of energy disperser 1 entirety can be realized.Thereby, it is possible to realize cost reduce, and also can make the manufacture of energy disperser 1, arrange become easy.In addition, the shortening of the height dimension of hoistway can also be realized.
Embodiment 2
Fig. 3 is the cutaway view of the buffer of elevator that embodiments of the present invention 2 are shown.In addition, Fig. 4 is the cutaway view of the state after the buffer of elevator illustrated in Fig. 3 shrinks.In the drawings, retainer 21 is provided with in the upper end of the plunger 3 of most subordinate.Retainer 21 is provided at the stage portion of the peripheral part of the plunger 3 of most subordinate.By the engaging of retainer 21 relative to contact component 10, the plunger 3 limiting most subordinate is relative to the displacement of cylinder part 8 (direction near bottom) downwards.
Retainer 22 is provided with in the upper end of the plunger 4 of most higher level.Retainer 22 is provided at the stage portion of the peripheral part of the plunger 4 of most higher level.By the engaging of retainer 22 relative to contact component 11, limit plunger 3 displacement downwards of plunger 4 relative to most subordinate of most higher level.
Therefore, engaged successively from cylinder part 8 under the effect of retainer 21,22 by each plunger 3,4, limit the displacement (Fig. 4) of each plunger 3,4 to the direction near base plate 7.Other structure is identical with embodiment 1.
In such buffer of elevator 1, retainer 21,22 is located at each plunger 3,4, engaged successively from cylinder part 8 under the effect of retainer 21,22 by each plunger 3,4, limit the displacement of each plunger 3,4 to the direction near base plate 7, therefore, it is possible to prevent each plunger 3,4 unrestrictedly close to base plate 7.Thus, even when each retracing spring 5,6 is compressed by the displacement of each plunger 3,4, the spring wire of each retracing spring 5,6 also can be avoided fully to be close to.Thereby, it is possible to suppress the tersional stress of the spring wire of each retracing spring 5,6 to increase, the spring performance of each retracing spring 5,6 can be prevented impaired.
Embodiment 3
Fig. 5 is the cutaway view of the buffer of elevator that embodiments of the present invention 3 are shown.In addition, Fig. 6 is the cutaway view of the state after the buffer of elevator illustrated in Fig. 5 shrinks.In the drawings, base plate 7 is provided with limits each plunger 3,4 multiple (being two in this example) retainer 31,32 of displacement to the direction near base plate 7 respectively.Retainer 31 is by abutting the displacement of the plunger 3 limiting most subordinate with the plunger 3 of most subordinate.Retainer 32 is by abutting the displacement of the plunger 4 limiting most higher level with the plunger 4 of most higher level.
Each retainer 31,32 is configured in cylinder part 8.In addition, each retainer 31,32 configures along each retracing spring 5,6.In this example, retainer 31 is cartridges of the inner circumferential along retracing spring 5, and retainer 32 is cartridges of the inner circumferential along retracing spring 6.The height of the aspect ratio retainer 32 of retainer 31 is low.Other structure is identical with embodiment 1.
In such buffer of elevator 1, be provided with at base plate 7 and limit the multiple retainers 31,32 of each plunger 3,4 to the displacement in the direction near base plate 7 respectively, each retainer 31,32 configures along each retracing spring 5,6, therefore, each plunger 3,4 can be prevented unrestrictedly close to base plate 7, the spring wire of each retracing spring 5,6 can be avoided fully to be close to.Thereby, it is possible to prevent the spring performance of each retracing spring 5,6 impaired.In addition, because each retracing spring 5,6 is flexible under the guiding of each retainer 31,32, therefore, it is possible to carry out the expanding-contracting action of each retracing spring 5,6 swimmingly.In addition, due to the increase of the weight of each plunger 3,4 can be prevented, the large shape of each retracing spring 5,6 can also therefore be prevented.
In addition, in the respective embodiments described above, each retracing spring 5,6 is configured in cylinder part 8, but also each retracing spring 5,6 can be configured at outside cylinder part 8.In this case, the spring supporting part of the application force bearing each retracing spring 5,6 is set respectively in the upper end of each plunger 3,4.
In addition, in the respective embodiments described above, the number of the plunger connected successively upward from cylinder part 8 is two, but also the plunger of more than three can be connected in the mode that can slide upward successively from cylinder part 8.In this case, base plate 7 configures the retracing spring with the number equal number of plunger side by side.
Claims (2)
1. a buffer of elevator, is characterized in that, described buffer of elevator comprises:
Pedestal cylinder, it has base portion and is located at the cylinder part on above-mentioned base portion, in above-mentioned cylinder part, preserve working oil;
Multiple plunger, they connect in the mode that can slide upward successively from above-mentioned cylinder part, and can be shifted at above-below direction respectively relative to above-mentioned cylinder part while the resistance bearing above-mentioned working oil; And
Multiple force body, they are configured on above-mentioned base portion side by side, and exert a force towards the direction left upward from above-mentioned base portion to each above-mentioned plunger respectively;
Wherein, above-mentioned base portion is provided with multiple retainer, the plurality of retainer limits the displacement of each above-mentioned plunger to the direction near above-mentioned base portion respectively,
Above-mentioned retainer configures along above-mentioned force body;
The height of each above-mentioned retainer is different according to different above-mentioned plungers.
2. a buffer of elevator, is characterized in that, described buffer of elevator comprises:
Pedestal cylinder, it has base portion and is located at the cylinder part on above-mentioned base portion, in above-mentioned cylinder part, preserve working oil;
Multiple plunger, they connect in the mode that can slide upward successively from above-mentioned cylinder part, and can be shifted at above-below direction respectively relative to above-mentioned cylinder part while the resistance bearing above-mentioned working oil; And
Multiple force body, they are configured on above-mentioned base portion side by side, and exert a force towards the direction left upward from above-mentioned base portion to each above-mentioned plunger respectively;
Wherein, above-mentioned base portion is provided with multiple retainer, the plurality of retainer limits the displacement of each above-mentioned plunger to the direction near above-mentioned base portion respectively;
Above-mentioned retainer configures along above-mentioned force body;
For limiting the height of the above-mentioned retainer of the displacement of the above-mentioned plunger of most subordinate, lower than the height of the above-mentioned retainer of the displacement of the above-mentioned plunger for limiting most higher level.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008801259995A CN101932521A (en) | 2008-04-30 | 2008-04-30 | Shock absorber for elevator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801259995A Division CN101932521A (en) | 2008-04-30 | 2008-04-30 | Shock absorber for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105110118A true CN105110118A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510559452.8A Pending CN105110118A (en) | 2008-04-30 | 2008-04-30 | Lift buffer |
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| Country | Link |
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| CN (1) | CN105110118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987475A (en) * | 2019-04-29 | 2019-07-09 | 福州快科电梯工业有限公司 | Embedded multistage buffer of elevator and its working method |
-
2008
- 2008-04-30 CN CN201510559452.8A patent/CN105110118A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987475A (en) * | 2019-04-29 | 2019-07-09 | 福州快科电梯工业有限公司 | Embedded multistage buffer of elevator and its working method |
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Application publication date: 20151202 |
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| RJ01 | Rejection of invention patent application after publication |