CN104528494A - Spring buffer for elevator - Google Patents
Spring buffer for elevator Download PDFInfo
- Publication number
- CN104528494A CN104528494A CN201410810183.3A CN201410810183A CN104528494A CN 104528494 A CN104528494 A CN 104528494A CN 201410810183 A CN201410810183 A CN 201410810183A CN 104528494 A CN104528494 A CN 104528494A
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- CN
- China
- Prior art keywords
- spring
- slide shaft
- elevator
- dash pot
- big
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to a spring buffer for an elevator. The spring buffer comprises a buffering cylinder. The buffering cylinder is vertically arranged. Both the two ends of the buffering cylinder are sealed, the bottom of an inner cavity of the buffering cylinder is provided with a vertical big spring and a vertical small spring, both the lower end of the big spring and the lower end of the small spring are fixed to the buffering cylinder, and the height of the big spring is larger than that of the small spring. The top of the small spring is provided with a vertical sliding shaft. The diameter of the sliding shaft is smaller than the inner diameter of the big spring and larger than the outer diameter of the small spring. The axis of the sliding shaft coincides with the axis of the buffering cylinder. The middle of the upper end of the buffering cylinder is provided with a through hole. The upper end of the sliding shaft penetrates through the through hole and stretches out of the buffering cylinder. The sliding shaft is in sliding fit with the through hole, and the top of the sliding shaft is fixedly provided with a horizontal buffering plate. The segment, between the upper end of the big spring and the top of the buffering cylinder, of the sliding shaft is provided with an annular boss, and the diameter of the annular boss is larger than the inner diameter of the big spring. The spring buffer is not prone to damage when the impact force of the elevator is overly large, and safety accidents can be avoided.
Description
Technical field
The present invention relates to a kind of elevator accessory, is a kind of elevator spring bumper specifically.
Background technology
Buffer of elevator is a kind of bottom being arranged on elevator hoistways, for the device preventing elevator case from damaging because of all standing of contact bottom.At present, the elevator spring bumper used in industry comprises one in the vertical spring arranged, dash plate is arranged at the top of spring, and the bottom of spring is fixed on the bottom of elevator hoistways.During work, when elevator case drop to close to bottom elevator hoistways time, be pressed onto dash plate, make its Compress Spring, spring produces antagonistic force to elevator case, and the size of this antagonistic force stably promotes along with the decline of elevator case, reaches the effect that elevator case is slowly slowed down.Along with now scientific and technical development, high-capacity elevator gets more and more, and traditional elevator spring bumper only has first-level buffer effect, very easily damages spring when elevator impulse force is excessive, produces safety misadventure.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of elevator spring bumper, and this spring bumper is not fragile when elevator impulse force is excessive yet, can avoid safety misadventure.
For solving the problem, provide following technical scheme:
The feature of elevator spring bumper of the present invention comprises dash pot, dash pot is vertical, its two ends are closed, the big spring and little spring that are arranged vertically are arranged at the bottom of dash pot inner chamber, big spring overlaps little spring and is arranged concentric between them, the axis of big spring and little spring all with the dead in line of dash pot, the lower end of big spring and little spring is all fixed on dash pot, and the height of big spring is higher than the height of little spring.The slide shaft be arranged vertically is arranged at the top of described little spring, the diameter of slide shaft is less than the internal diameter of big spring and is greater than the external diameter of little spring, the axis of slide shaft and the dead in line of dash pot, there is through hole at the middle part of described dash pot upper end, the upper end of described slide shaft reaches outside dash pot through this through hole, and in bearing fit between slide shaft and this through hole, the top of slide shaft is fixed with the dash plate in horizontal arrangement.That section of slide shaft between big spring upper end and dash pot top has annular boss, and the diameter of this annular boss is greater than the internal diameter of described big spring.
Wherein, the junction of described dash plate and slide shaft is provided with reinforced rib.
Take above scheme, have the following advantages:
Because elevator spring bumper of the present invention comprises dash pot, dash pot is vertical, its two ends are closed, the big spring and little spring that are arranged vertically are arranged at the bottom of dash pot inner chamber, big spring overlaps little spring and is arranged concentric between them, the axis of big spring and little spring all with the dead in line of dash pot, the lower end of big spring and little spring is all fixed on dash pot, the height of big spring is higher than the height of little spring, the slide shaft be arranged vertically is arranged at the top of little spring, the diameter of slide shaft is less than the internal diameter of big spring and is greater than the external diameter of little spring, the axis of slide shaft and the dead in line of dash pot, there is through hole at the middle part of described dash pot upper end, the upper end of described slide shaft reaches outside dash pot through this through hole, and in bearing fit between slide shaft and this through hole, the top of slide shaft is fixed with the dash plate in horizontal arrangement, that section of slide shaft between big spring upper end and dash pot top there is annular boss, the diameter of this annular boss is greater than the internal diameter of described big spring.During use, dash pot is put into the bottom of elevator hoistways, when elevator case drop to close to bottom elevator hoistways time, push down dash plate, slide shaft is moved down, thus compression little spring, little spring produces antagonistic force to car, when elevator impulse force is excessive make dash plate slide downward to a certain degree after, the annular boss of slide shaft starts to compress big spring, now large, little spring produces antagonistic force to car simultaneously, thus play the effect of buffering, so elevator spring bumper of the present invention is when taking up room almost constant, create the effect of two-stage buffering, the also not fragile spring when elevator impulsive force is excessive, thus avoid potential safety hazard.
Accompanying drawing explanation
Fig. 1 is the structural representation of elevator spring bumper of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, elevator spring bumper of the present invention comprises dash pot 1, dash pot 1 is in vertical, its two ends are closed, the big spring 6 and little spring 7 that are arranged vertically are arranged at the bottom of dash pot 1 inner chamber, and big spring 6 overlaps little spring 7 and in arranged concentric between them, the axis of big spring 6 and little spring 7 all with the dead in line of dash pot 1, the lower end of big spring 6 and little spring 7 is all fixed on dash pot 1, and the height of big spring 6 is higher than the height of little spring 7.The slide shaft 4 be arranged vertically is arranged at the top of described little spring 7, the diameter of slide shaft 4 is less than the internal diameter of big spring 6 and is greater than the external diameter of little spring 7, the axis of slide shaft 4 and the dead in line of dash pot 1, there is through hole at the middle part of described dash pot 1 upper end, the upper end of described slide shaft 4 reaches outside dash pot 1 through this through hole, and in bearing fit between slide shaft 4 and this through hole, the top of slide shaft 4 is fixed with the dash plate 2 in horizontal arrangement, and their junction is provided with reinforced rib 3.That section of slide shaft 4 between big spring 6 upper end and dash pot 1 top has annular boss 5, and the diameter of this annular boss 5 is greater than the internal diameter of described big spring 6.
During work, dash pot 1 is put into the bottom of elevator hoistways, when elevator case drop to close to bottom elevator hoistways time, push down dash plate 2, slide shaft 4 moved down, thus compression little spring 7, the little spring 7 pairs of cars produce antagonistic forces, when elevator impulse force is excessive make dash plate 2 slide downward to a certain degree after, the annular boss 5 of slide shaft 4 starts to compress big spring 6, now large and small spring 7 produces antagonistic force to car simultaneously, thus realizes the function of buffering.
Claims (2)
1. elevator spring bumper, it is characterized in that comprising dash pot (1), dash pot (1) is in vertical, its two ends are closed, the big spring (6) and little spring (7) that are arranged vertically are arranged at the bottom of dash pot (1) inner chamber, big spring (6) overlaps little spring (7) and is arranged concentric between them, the axis of big spring (6) and little spring (7) all with the dead in line of dash pot (1), the lower end of big spring (6) and little spring (7) is all fixed on dash pot (1), and the height of big spring (6) is higher than the height of little spring (7); The slide shaft (4) be arranged vertically is arranged at the top of described little spring (7), the diameter of slide shaft (4) is less than the internal diameter of big spring (6) and is greater than the external diameter of little spring (7), the axis of slide shaft (4) and the dead in line of dash pot (1), there is through hole at the middle part of described dash pot (1) upper end, the upper end of described slide shaft (4) reaches dash pot (1) outward through this through hole, and in bearing fit between slide shaft (4) and this through hole, the top of slide shaft (4) is fixed with the dash plate (2) in horizontal arrangement; That section of slide shaft (4) between big spring (6) upper end and dash pot (1) top has annular boss (5), and the diameter of this annular boss (5) is greater than the internal diameter of described big spring (6).
2. elevator spring bumper as claimed in claim 1, is characterized in that described dash plate (2) is provided with reinforced rib (3) with the junction of slide shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410810183.3A CN104528494A (en) | 2014-12-24 | 2014-12-24 | Spring buffer for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410810183.3A CN104528494A (en) | 2014-12-24 | 2014-12-24 | Spring buffer for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104528494A true CN104528494A (en) | 2015-04-22 |
Family
ID=52844193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410810183.3A Pending CN104528494A (en) | 2014-12-24 | 2014-12-24 | Spring buffer for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104528494A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292029A (en) * | 2015-04-23 | 2016-02-03 | 马国臣 | Device capable of counteracting impact force and avoiding danger for automobile |
| CN107054499A (en) * | 2017-04-25 | 2017-08-18 | 胡建令 | A kind of town road robot |
| CN107386610A (en) * | 2017-07-24 | 2017-11-24 | 胡建令 | Tiling instrument is used in one kind building municipal administration |
| CN115030856A (en) * | 2022-06-30 | 2022-09-09 | 上海大学 | Wave energy collecting device |
-
2014
- 2014-12-24 CN CN201410810183.3A patent/CN104528494A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292029A (en) * | 2015-04-23 | 2016-02-03 | 马国臣 | Device capable of counteracting impact force and avoiding danger for automobile |
| CN107054499A (en) * | 2017-04-25 | 2017-08-18 | 胡建令 | A kind of town road robot |
| CN107386610A (en) * | 2017-07-24 | 2017-11-24 | 胡建令 | Tiling instrument is used in one kind building municipal administration |
| CN115030856A (en) * | 2022-06-30 | 2022-09-09 | 上海大学 | Wave energy collecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |
|
| WD01 | Invention patent application deemed withdrawn after publication |